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Message-ID: <20240722193946.1246372-1-hoff.benjamin.k@gmail.com>
Date: Mon, 22 Jul 2024 15:39:46 -0400
From: hoff.benjamin.k@...il.com
To: shreeya.patel@...labora.com
Cc: conor+dt@...nel.org,
devicetree@...r.kernel.org,
heiko@...ech.de,
hverkuil-cisco@...all.nl,
hverkuil@...all.nl,
jose.abreu@...opsys.com,
kernel@...labora.com,
krzk+dt@...nel.org,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
linux-media@...r.kernel.org,
linux-rockchip@...ts.infradead.org,
mchehab@...nel.org,
mturquette@...libre.com,
nelson.costa@...opsys.com,
nicolas.dufresne@...labora.com,
p.zabel@...gutronix.de,
robh@...nel.org,
sboyd@...nel.org,
shawn.wen@...k-chips.com
Subject: Re: [PATCH v4 4/4] media: platform: synopsys: Add support for hdmi input driver
> Add initial support for the Synopsys DesignWare HDMI RX
> Controller Driver used by Rockchip RK3588. The driver
> supports:
> - HDMI 1.4b and 2.0 modes (HDMI 4k@...z)
> - RGB888, YUV422, YUV444 and YCC420 pixel formats
> - CEC
> - EDID configuration
>
> The hardware also has Audio and HDCP capabilities, but these are
> not yet supported by the driver.
>
> Reviewed-by: Dmitry Osipenko <dmitry.osipenko@...labora.com>
> Tested-by: Dmitry Osipenko <dmitry.osipenko@...labora.com>
> Co-developed-by: Dingxian Wen <shawn.wen@...k-chips.com>
> Signed-off-by: Dingxian Wen <shawn.wen@...k-chips.com>
> Signed-off-by: Shreeya Patel <shreeya.patel@...labora.com>
> ---
>
> Changes in v4 :-
> - Create a separate config option for selecting the EDID
> and enable it by default
> - Improve the comment related to DV timings and move it
> to the side of hdmirx_get_detected_timings
> - Add 100ms delay before pulling the HPD high
> - Do not return the detected timings from VIDIOC_G_DV_TIMINGS
> - Drop the bus info from hdmirx_querycap
> - If *num_planes != 0 then return 0 in hdmirx_queue_setup
> - Set queue->min_queued_buffers to 1
> - Drop q->allow_cache_hints = 0; as it's always 0 by default
> - Add a comment for q->dma_attrs = DMA_ATTR_FORCE_CONTIGUOUS;
> - Drop .read = vb2_fop_read as it's not supported by driver
> - Remove redundant edid_init_data_600M
> - Make HPD low when driver is loaded
> - Add support for reading AVI Infoframe
> - Remove msg_len checks from hdmirx_cec_transmit
> - Add info about the CEC compliance test in the cover letter
> - Add arbitration lost status
> - Validate the physical address inside the EDID
>
> Changes in v3 :-
> - Use v4l2-common helper functions
>
> Changes in v2 :-
> - Fix checkpatch --strict warnings
> - Rename resets, vo1-grf and HPD node names as per the DT changes
>
> drivers/media/platform/Kconfig | 1 +
> drivers/media/platform/Makefile | 1 +
> drivers/media/platform/synopsys/Kconfig | 3 +
> drivers/media/platform/synopsys/Makefile | 2 +
> .../media/platform/synopsys/hdmirx/Kconfig | 27 +
> .../media/platform/synopsys/hdmirx/Makefile | 4 +
> .../platform/synopsys/hdmirx/snps_hdmirx.c | 2763 +++++++++++++++++
> .../platform/synopsys/hdmirx/snps_hdmirx.h | 394 +++
> .../synopsys/hdmirx/snps_hdmirx_cec.c | 285 ++
> .../synopsys/hdmirx/snps_hdmirx_cec.h | 44 +
> 10 files changed, 3524 insertions(+)
> create mode 100644 drivers/media/platform/synopsys/Kconfig
> create mode 100644 drivers/media/platform/synopsys/Makefile
> create mode 100644 drivers/media/platform/synopsys/hdmirx/Kconfig
> create mode 100644 drivers/media/platform/synopsys/hdmirx/Makefile
> create mode 100644 drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c
> create mode 100644 drivers/media/platform/synopsys/hdmirx/snps_hdmirx.h
> create mode 100644 drivers/media/platform/synopsys/hdmirx/snps_hdmirx_cec.c
> create mode 100644 drivers/media/platform/synopsys/hdmirx/snps_hdmirx_cec.h
>
> diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
> index 85d2627776b6..9287faafdce5 100644
> --- a/drivers/media/platform/Kconfig
> +++ b/drivers/media/platform/Kconfig
> @@ -85,6 +85,7 @@ source "drivers/media/platform/rockchip/Kconfig"
> source "drivers/media/platform/samsung/Kconfig"
> source "drivers/media/platform/st/Kconfig"
> source "drivers/media/platform/sunxi/Kconfig"
> +source "drivers/media/platform/synopsys/Kconfig"
> source "drivers/media/platform/ti/Kconfig"
> source "drivers/media/platform/verisilicon/Kconfig"
> source "drivers/media/platform/via/Kconfig"
> diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile
> index ace4e34483dd..6fd7db0541c7 100644
> --- a/drivers/media/platform/Makefile
> +++ b/drivers/media/platform/Makefile
> @@ -28,6 +28,7 @@ obj-y += rockchip/
> obj-y += samsung/
> obj-y += st/
> obj-y += sunxi/
> +obj-y += synopsys/
> obj-y += ti/
> obj-y += verisilicon/
> obj-y += via/
> diff --git a/drivers/media/platform/synopsys/Kconfig b/drivers/media/platform/synopsys/Kconfig
> new file mode 100644
> index 000000000000..4fd521f78425
> --- /dev/null
> +++ b/drivers/media/platform/synopsys/Kconfig
> @@ -0,0 +1,3 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +
> +source "drivers/media/platform/synopsys/hdmirx/Kconfig"
> diff --git a/drivers/media/platform/synopsys/Makefile b/drivers/media/platform/synopsys/Makefile
> new file mode 100644
> index 000000000000..3b12c574dd67
> --- /dev/null
> +++ b/drivers/media/platform/synopsys/Makefile
> @@ -0,0 +1,2 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +obj-y += hdmirx/
> diff --git a/drivers/media/platform/synopsys/hdmirx/Kconfig b/drivers/media/platform/synopsys/hdmirx/Kconfig
> new file mode 100644
> index 000000000000..ab569e59300f
> --- /dev/null
> +++ b/drivers/media/platform/synopsys/hdmirx/Kconfig
> @@ -0,0 +1,27 @@
> +# SPDX-License-Identifier: GPL-2.0
> +
> +config VIDEO_SYNOPSYS_HDMIRX
> + tristate "Synopsys DesignWare HDMI Receiver driver"
> + depends on VIDEO_DEV
> + depends on ARCH_ROCKCHIP
> + select MEDIA_CONTROLLER
> + select VIDEO_V4L2_SUBDEV_API
> + select VIDEOBUF2_DMA_CONTIG
> + select CEC_CORE
> + select CEC_NOTIFIER
> + select HDMI
> + help
> + Support for Synopsys HDMI HDMI RX Controller.
> + This driver supports HDMI 2.0 version.
> +
> + To compile this driver as a module, choose M here. The module
> + will be called synopsys_hdmirx.
> +
> +config HDMIRX_LOAD_DEFAULT_EDID
> + bool "Load default EDID"
> + depends on VIDEO_SYNOPSYS_HDMIRX
> + default "y"
> + help
> + Preload the default EDID (Extended Display Identification Data).
> + EDID contains information about the capabilities of the display,
> + such as supported resolutions, refresh rates, and audio formats.
> diff --git a/drivers/media/platform/synopsys/hdmirx/Makefile b/drivers/media/platform/synopsys/hdmirx/Makefile
> new file mode 100644
> index 000000000000..2fa2d9e25300
> --- /dev/null
> +++ b/drivers/media/platform/synopsys/hdmirx/Makefile
> @@ -0,0 +1,4 @@
> +# SPDX-License-Identifier: GPL-2.0
> +synopsys-hdmirx-objs := snps_hdmirx.o snps_hdmirx_cec.o
> +
> +obj-$(CONFIG_VIDEO_SYNOPSYS_HDMIRX) += synopsys-hdmirx.o
> diff --git a/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c
> new file mode 100644
> index 000000000000..1dfecf256393
> --- /dev/null
> +++ b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c
> @@ -0,0 +1,2763 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2024 Collabora, Ltd.
> + * Author: Shreeya Patel <shreeya.patel@...labora.com>
> + *
> + * Copyright (c) 2021 Rockchip Electronics Co. Ltd.
> + * Author: Dingxian Wen <shawn.wen@...k-chips.com>
> + */
> +
> +#include <linux/arm-smccc.h>
> +#include <linux/clk.h>
> +#include <linux/completion.h>
> +#include <linux/delay.h>
> +#include <linux/dma-mapping.h>
> +#include <linux/gpio/consumer.h>
> +#include <linux/hdmi.h>
> +#include <linux/interrupt.h>
> +#include <linux/irq.h>
> +#include <linux/mfd/syscon.h>
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/of_platform.h>
> +#include <linux/of_reserved_mem.h>
> +#include <linux/pinctrl/consumer.h>
> +#include <linux/platform_device.h>
> +#include <linux/property.h>
> +#include <linux/regmap.h>
> +#include <linux/reset.h>
> +#include <linux/v4l2-dv-timings.h>
> +#include <linux/workqueue.h>
> +
> +#include <media/cec.h>
> +#include <media/cec-notifier.h>
> +#include <media/v4l2-common.h>
> +#include <media/v4l2-ctrls.h>
> +#include <media/v4l2-device.h>
> +#include <media/v4l2-dv-timings.h>
> +#include <media/v4l2-event.h>
> +#include <media/v4l2-fh.h>
> +#include <media/v4l2-ioctl.h>
> +#include <media/videobuf2-dma-contig.h>
> +#include <media/videobuf2-v4l2.h>
> +#include <media/v4l2-common.h>
> +
> +#include <sound/hdmi-codec.h>
> +
> +#include "snps_hdmirx.h"
> +#include "snps_hdmirx_cec.h"
> +
> +static int debug;
> +module_param(debug, int, 0644);
> +MODULE_PARM_DESC(debug, "debug level (0-3)");
> +
> +#define EDID_NUM_BLOCKS_MAX 2
> +#define EDID_BLOCK_SIZE 128
> +#define HDMIRX_STORED_BIT_WIDTH 8
> +#define IREF_CLK_FREQ_HZ 428571429
> +#define MEMORY_ALIGN_ROUND_UP_BYTES 64
> +#define HDMIRX_PLANE_Y 0
> +#define HDMIRX_PLANE_CBCR 1
> +#define RK_IRQ_HDMIRX_HDMI 210
> +#define FILTER_FRAME_CNT 6
> +#define RK_SIP_FIQ_CTRL 0x82000024
> +#define SIP_WDT_CFG 0x82000026
> +#define DETECTION_THRESHOLD 7
> +
> +/* fiq control sub func */
> +enum {
> + RK_SIP_FIQ_CTRL_FIQ_EN = 1,
> + RK_SIP_FIQ_CTRL_FIQ_DIS,
> + RK_SIP_FIQ_CTRL_SET_AFF
> +};
> +
> +/* SIP_WDT_CONFIG call types */
> +enum {
> + WDT_START = 0,
> + WDT_STOP = 1,
> + WDT_PING = 2,
> +};
> +
> +enum hdmirx_pix_fmt {
> + HDMIRX_RGB888 = 0,
> + HDMIRX_YUV422 = 1,
> + HDMIRX_YUV444 = 2,
> + HDMIRX_YUV420 = 3,
> +};
> +
> +enum ddr_store_fmt {
> + STORE_RGB888 = 0,
> + STORE_RGBA_ARGB,
> + STORE_YUV420_8BIT,
> + STORE_YUV420_10BIT,
> + STORE_YUV422_8BIT,
> + STORE_YUV422_10BIT,
> + STORE_YUV444_8BIT,
> + STORE_YUV420_16BIT = 8,
> + STORE_YUV422_16BIT = 9,
> +};
> +
> +enum hdmirx_reg_attr {
> + HDMIRX_ATTR_RW = 0,
> + HDMIRX_ATTR_RO = 1,
> + HDMIRX_ATTR_WO = 2,
> + HDMIRX_ATTR_RE = 3,
> +};
> +
> +enum {
> + HDMIRX_RST_A,
> + HDMIRX_RST_P,
> + HDMIRX_RST_REF,
> + HDMIRX_RST_BIU,
> + HDMIRX_NUM_RST,
> +};
> +
> +static const char * const pix_fmt_str[] = {
> + "RGB888",
> + "YUV422",
> + "YUV444",
> + "YUV420",
> +};
> +
> +struct hdmirx_buffer {
> + struct vb2_v4l2_buffer vb;
> + struct list_head queue;
> + u32 buff_addr[VIDEO_MAX_PLANES];
> +};
> +
> +struct hdmirx_stream {
> + struct snps_hdmirx_dev *hdmirx_dev;
> + struct video_device vdev;
> + struct vb2_queue buf_queue;
> + struct list_head buf_head;
> + struct hdmirx_buffer *curr_buf;
> + struct hdmirx_buffer *next_buf;
> + struct v4l2_pix_format_mplane pixm;
> + const struct v4l2_format_info *out_finfo;
> + struct mutex vlock; /* to lock resources associated with video buffer and video device */
> + spinlock_t vbq_lock; /* to lock video buffer queue */
> + bool stopping;
> + wait_queue_head_t wq_stopped;
> + u32 frame_idx;
> + u32 line_flag_int_cnt;
> + u32 irq_stat;
> +};
> +
> +struct snps_hdmirx_dev {
> + struct device *dev;
> + struct device *codec_dev;
> + struct hdmirx_stream stream;
> + struct v4l2_device v4l2_dev;
> + struct v4l2_ctrl_handler hdl;
> + struct v4l2_ctrl *detect_tx_5v_ctrl;
> + struct v4l2_ctrl *rgb_range;
> + struct v4l2_dv_timings timings;
> + struct gpio_desc *detect_5v_gpio;
> + struct work_struct work_wdt_config;
> + struct delayed_work delayed_work_hotplug;
> + struct delayed_work delayed_work_res_change;
> + struct delayed_work delayed_work_heartbeat;
> + struct cec_notifier *cec_notifier;
> + struct hdmirx_cec *cec;
> + struct mutex stream_lock; /* to lock video stream capture */
> + struct mutex work_lock; /* to lock the critical section of hotplug event */
> + struct reset_control_bulk_data resets[HDMIRX_NUM_RST];
> + struct clk_bulk_data *clks;
> + struct regmap *grf;
> + struct regmap *vo1_grf;
> + struct completion cr_write_done;
> + struct completion timer_base_lock;
> + struct completion avi_pkt_rcv;
> + enum hdmirx_pix_fmt pix_fmt;
> + void __iomem *regs;
> + int hdmi_irq;
> + int dma_irq;
> + int det_irq;
> + bool hpd_trigger_level;
> + bool tmds_clk_ratio;
> + bool is_dvi_mode;
> + bool got_timing;
> + u32 num_clks;
> + u32 edid_blocks_written;
> + u32 cur_vic;
> + u32 cur_fmt_fourcc;
> + u32 color_depth;
> + u8 edid[EDID_BLOCK_SIZE * 2];
> + hdmi_codec_plugged_cb plugged_cb;
> + spinlock_t rst_lock; /* to lock register access */
> +};
> +
> +static u8 edid_init_data_340M[] = {
> + 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00,
> + 0x49, 0x70, 0x88, 0x35, 0x01, 0x00, 0x00, 0x00,
> + 0x2D, 0x1F, 0x01, 0x03, 0x80, 0x78, 0x44, 0x78,
> + 0x0A, 0xCF, 0x74, 0xA3, 0x57, 0x4C, 0xB0, 0x23,
> + 0x09, 0x48, 0x4C, 0x21, 0x08, 0x00, 0x61, 0x40,
> + 0x01, 0x01, 0x81, 0x00, 0x95, 0x00, 0xA9, 0xC0,
> + 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3A,
> + 0x80, 0x18, 0x71, 0x38, 0x2D, 0x40, 0x58, 0x2C,
> + 0x45, 0x00, 0x20, 0xC2, 0x31, 0x00, 0x00, 0x1E,
> + 0x01, 0x1D, 0x00, 0x72, 0x51, 0xD0, 0x1E, 0x20,
> + 0x6E, 0x28, 0x55, 0x00, 0x20, 0xC2, 0x31, 0x00,
> + 0x00, 0x1E, 0x00, 0x00, 0x00, 0xFC, 0x00, 0x52,
> + 0x4B, 0x2D, 0x55, 0x48, 0x44, 0x0A, 0x20, 0x20,
> + 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xFD,
> + 0x00, 0x3B, 0x46, 0x1F, 0x8C, 0x3C, 0x00, 0x0A,
> + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0xA7,
> +
> + 0x02, 0x03, 0x2F, 0xD1, 0x51, 0x07, 0x16, 0x14,
> + 0x05, 0x01, 0x03, 0x12, 0x13, 0x84, 0x22, 0x1F,
> + 0x90, 0x5D, 0x5E, 0x5F, 0x60, 0x61, 0x23, 0x09,
> + 0x07, 0x07, 0x83, 0x01, 0x00, 0x00, 0x67, 0x03,
> + 0x0C, 0x00, 0x30, 0x00, 0x10, 0x44, 0xE3, 0x05,
> + 0x03, 0x01, 0xE4, 0x0F, 0x00, 0x80, 0x01, 0x02,
> + 0x3A, 0x80, 0x18, 0x71, 0x38, 0x2D, 0x40, 0x58,
> + 0x2C, 0x45, 0x00, 0x20, 0xC2, 0x31, 0x00, 0x00,
> + 0x1E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
> + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1F,
> +};
> +
> +static const struct v4l2_dv_timings cea640x480 = V4L2_DV_BT_CEA_640X480P59_94;
> +
> +static const struct v4l2_dv_timings_cap hdmirx_timings_cap = {
> + .type = V4L2_DV_BT_656_1120,
> + .reserved = { 0 },
> + V4L2_INIT_BT_TIMINGS(640, 4096, /* min/max width */
> + 480, 2160, /* min/max height */
> + 20000000, 600000000, /* min/max pixelclock */
> + /* standards */
> + V4L2_DV_BT_STD_CEA861,
> + /* capabilities */
> + V4L2_DV_BT_CAP_PROGRESSIVE |
> + V4L2_DV_BT_CAP_INTERLACED)
> +};
> +
> +static void hdmirx_writel(struct snps_hdmirx_dev *hdmirx_dev, int reg, u32 val)
> +{
> + unsigned long lock_flags = 0;
> +
> + spin_lock_irqsave(&hdmirx_dev->rst_lock, lock_flags);
> + writel(val, hdmirx_dev->regs + reg);
> + spin_unlock_irqrestore(&hdmirx_dev->rst_lock, lock_flags);
> +}
> +
> +static u32 hdmirx_readl(struct snps_hdmirx_dev *hdmirx_dev, int reg)
> +{
> + unsigned long lock_flags = 0;
> + u32 val;
> +
> + spin_lock_irqsave(&hdmirx_dev->rst_lock, lock_flags);
> + val = readl(hdmirx_dev->regs + reg);
> + spin_unlock_irqrestore(&hdmirx_dev->rst_lock, lock_flags);
> + return val;
> +}
> +
> +static void hdmirx_reset_dma(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + unsigned long lock_flags = 0;
> +
> + spin_lock_irqsave(&hdmirx_dev->rst_lock, lock_flags);
> + reset_control_reset(hdmirx_dev->resets[0].rstc);
> + spin_unlock_irqrestore(&hdmirx_dev->rst_lock, lock_flags);
> +}
> +
> +static void hdmirx_update_bits(struct snps_hdmirx_dev *hdmirx_dev, int reg,
> + u32 mask, u32 data)
> +{
> + unsigned long lock_flags = 0;
> + u32 val;
> +
> + spin_lock_irqsave(&hdmirx_dev->rst_lock, lock_flags);
> + val = readl(hdmirx_dev->regs + reg) & ~mask;
> + val |= (data & mask);
> + writel(val, hdmirx_dev->regs + reg);
> + spin_unlock_irqrestore(&hdmirx_dev->rst_lock, lock_flags);
> +}
> +
> +static int hdmirx_subscribe_event(struct v4l2_fh *fh,
> + const struct v4l2_event_subscription *sub)
> +{
> + switch (sub->type) {
> + case V4L2_EVENT_SOURCE_CHANGE:
> + if (fh->vdev->vfl_dir == VFL_DIR_RX)
> + return v4l2_src_change_event_subscribe(fh, sub);
> + break;
> + case V4L2_EVENT_CTRL:
> + return v4l2_ctrl_subscribe_event(fh, sub);
> + default:
> + break;
> + }
> +
> + return -EINVAL;
> +}
> +
> +static bool tx_5v_power_present(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + bool ret;
> + int val, i, cnt;
> +
> + cnt = 0;
> + for (i = 0; i < 10; i++) {
> + usleep_range(1000, 1100);
> + val = gpiod_get_value(hdmirx_dev->detect_5v_gpio);
> + if (val > 0)
> + cnt++;
> + if (cnt >= DETECTION_THRESHOLD)
> + break;
> + }
> +
> + ret = (cnt >= DETECTION_THRESHOLD) ? true : false;
> + v4l2_dbg(3, debug, &hdmirx_dev->v4l2_dev, "%s: %d\n", __func__, ret);
> +
> + return ret;
> +}
> +
> +static bool signal_not_lock(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + u32 mu_status, dma_st10, cmu_st;
> +
> + mu_status = hdmirx_readl(hdmirx_dev, MAINUNIT_STATUS);
> + dma_st10 = hdmirx_readl(hdmirx_dev, DMA_STATUS10);
> + cmu_st = hdmirx_readl(hdmirx_dev, CMU_STATUS);
> +
> + if ((mu_status & TMDSVALID_STABLE_ST) &&
> + (dma_st10 & HDMIRX_LOCK) &&
> + (cmu_st & TMDSQPCLK_LOCKED_ST))
> + return false;
> +
> + return true;
> +}
> +
> +static void hdmirx_get_colordepth(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + u32 val, color_depth_reg;
> +
> + val = hdmirx_readl(hdmirx_dev, DMA_STATUS11);
> + color_depth_reg = (val & HDMIRX_COLOR_DEPTH_MASK) >> 3;
> +
> + switch (color_depth_reg) {
> + case 0x4:
> + hdmirx_dev->color_depth = 24;
> + break;
> + case 0x5:
> + hdmirx_dev->color_depth = 30;
> + break;
> + case 0x6:
> + hdmirx_dev->color_depth = 36;
> + break;
> + case 0x7:
> + hdmirx_dev->color_depth = 48;
> + break;
> + default:
> + hdmirx_dev->color_depth = 24;
> + break;
> + }
> +
> + v4l2_dbg(1, debug, v4l2_dev, "%s: color_depth: %d, reg_val:%d\n",
> + __func__, hdmirx_dev->color_depth, color_depth_reg);
> +}
> +
> +static void hdmirx_get_pix_fmt(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + u32 val;
> +
> + val = hdmirx_readl(hdmirx_dev, DMA_STATUS11);
> + hdmirx_dev->pix_fmt = val & HDMIRX_FORMAT_MASK;
> +
> + switch (hdmirx_dev->pix_fmt) {
> + case HDMIRX_RGB888:
> + hdmirx_dev->cur_fmt_fourcc = V4L2_PIX_FMT_BGR24;
> + break;
> + case HDMIRX_YUV422:
> + hdmirx_dev->cur_fmt_fourcc = V4L2_PIX_FMT_NV16;
> + break;
> + case HDMIRX_YUV444:
> + hdmirx_dev->cur_fmt_fourcc = V4L2_PIX_FMT_NV24;
> + break;
> + case HDMIRX_YUV420:
> + hdmirx_dev->cur_fmt_fourcc = V4L2_PIX_FMT_NV12;
> + break;
> + default:
> + v4l2_err(v4l2_dev,
> + "%s: err pix_fmt: %d, set RGB888 as default\n",
> + __func__, hdmirx_dev->pix_fmt);
> + hdmirx_dev->pix_fmt = HDMIRX_RGB888;
> + hdmirx_dev->cur_fmt_fourcc = V4L2_PIX_FMT_BGR24;
> + break;
> + }
> +
> + v4l2_dbg(1, debug, v4l2_dev, "%s: pix_fmt: %s\n", __func__,
> + pix_fmt_str[hdmirx_dev->pix_fmt]);
> +}
> +
> +static void hdmirx_get_timings(struct snps_hdmirx_dev *hdmirx_dev,
> + struct v4l2_bt_timings *bt, bool from_dma)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + u32 hact, vact, htotal, vtotal, fps;
> + u32 hfp, hs, hbp, vfp, vs, vbp;
> + u32 val;
> +
> + if (from_dma) {
> + val = hdmirx_readl(hdmirx_dev, DMA_STATUS2);
> + hact = (val >> 16) & 0xffff;
> + vact = val & 0xffff;
> + val = hdmirx_readl(hdmirx_dev, DMA_STATUS3);
> + htotal = (val >> 16) & 0xffff;
> + vtotal = val & 0xffff;
> + val = hdmirx_readl(hdmirx_dev, DMA_STATUS4);
> + hs = (val >> 16) & 0xffff;
> + vs = val & 0xffff;
> + val = hdmirx_readl(hdmirx_dev, DMA_STATUS5);
> + hbp = (val >> 16) & 0xffff;
> + vbp = val & 0xffff;
> + hfp = htotal - hact - hs - hbp;
> + vfp = vtotal - vact - vs - vbp;
> + } else {
> + val = hdmirx_readl(hdmirx_dev, VMON_STATUS1);
> + hs = (val >> 16) & 0xffff;
> + hfp = val & 0xffff;
> + val = hdmirx_readl(hdmirx_dev, VMON_STATUS2);
> + hbp = val & 0xffff;
> + val = hdmirx_readl(hdmirx_dev, VMON_STATUS3);
> + htotal = (val >> 16) & 0xffff;
> + hact = val & 0xffff;
> + val = hdmirx_readl(hdmirx_dev, VMON_STATUS4);
> + vs = (val >> 16) & 0xffff;
> + vfp = val & 0xffff;
> + val = hdmirx_readl(hdmirx_dev, VMON_STATUS5);
> + vbp = val & 0xffff;
> + val = hdmirx_readl(hdmirx_dev, VMON_STATUS6);
> + vtotal = (val >> 16) & 0xffff;
> + vact = val & 0xffff;
> + if (hdmirx_dev->pix_fmt == HDMIRX_YUV420)
> + hact *= 2;
> + }
> + if (hdmirx_dev->pix_fmt == HDMIRX_YUV420)
> + htotal *= 2;
> + fps = (bt->pixelclock + (htotal * vtotal) / 2) / (htotal * vtotal);
> + if (hdmirx_dev->pix_fmt == HDMIRX_YUV420)
> + fps *= 2;
> + bt->width = hact;
> + bt->height = vact;
> + bt->hfrontporch = hfp;
> + bt->hsync = hs;
> + bt->hbackporch = hbp;
> + bt->vfrontporch = vfp;
> + bt->vsync = vs;
> + bt->vbackporch = vbp;
> +
> + v4l2_dbg(1, debug, v4l2_dev, "get timings from %s\n", from_dma ? "dma" : "ctrl");
> + v4l2_dbg(1, debug, v4l2_dev, "act:%ux%u, total:%ux%u, fps:%u, pixclk:%llu\n",
> + bt->width, bt->height, htotal, vtotal, fps, bt->pixelclock);
> +
> + v4l2_dbg(2, debug, v4l2_dev, "hfp:%u, hs:%u, hbp:%u, vfp:%u, vs:%u, vbp:%u\n",
> + bt->hfrontporch, bt->hsync, bt->hbackporch,
> + bt->vfrontporch, bt->vsync, bt->vbackporch);
> +}
> +
> +static bool hdmirx_check_timing_valid(struct v4l2_bt_timings *bt)
> +{
> + if (bt->width < 100 || bt->width > 5000 ||
> + bt->height < 100 || bt->height > 5000)
> + return false;
> +
> + if (!bt->hsync || bt->hsync > 200 ||
> + !bt->vsync || bt->vsync > 100)
> + return false;
> +
> + if (!bt->hbackporch || bt->hbackporch > 2000 ||
> + !bt->vbackporch || bt->vbackporch > 2000)
> + return false;
> +
> + if (!bt->hfrontporch || bt->hfrontporch > 2000 ||
> + !bt->vfrontporch || bt->vfrontporch > 2000)
> + return false;
> +
> + return true;
> +}
> +
> +static void hdmirx_get_avi_infoframe(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + union hdmi_infoframe frame = {};
> + int err, i, b, itr = 0;
> + u8 aviif[3 + 7 * 4];
> + u32 val;
> +
> + aviif[itr++] = HDMI_INFOFRAME_TYPE_AVI;
> + val = hdmirx_readl(hdmirx_dev, PKTDEC_AVIIF_PH2_1);
> + aviif[itr++] = val & 0xff;
> + aviif[itr++] = (val >> 8) & 0xff;
> +
> + for (i = 0; i < 7; i++) {
> + val = hdmirx_readl(hdmirx_dev, PKTDEC_AVIIF_PB3_0 + 4 * i);
> +
> + for (b = 0; b < 4; b++)
> + aviif[itr++] = (val >> (8 * b)) & 0xff;
> + }
> +
> + err = hdmi_infoframe_unpack(&frame, aviif, sizeof(aviif));
> + if (err) {
> + v4l2_err(v4l2_dev, "failed to unpack AVI infoframe\n");
> + return;
> + }
> +
> + v4l2_ctrl_s_ctrl(hdmirx_dev->rgb_range, frame.avi.quantization_range);
> +}
> +
> +/*
> + * When querying DV timings during preview, if the DMA's timing is stable,
> + * we retrieve the timings directly from the DMA. However, if the current
> + * resolution is negative, obtaining the timing from CTRL may require a
> + * change in the sync polarity, potentially leading to DMA errors.
> + */
> +static int hdmirx_get_detected_timings(struct snps_hdmirx_dev *hdmirx_dev,
> + struct v4l2_dv_timings *timings,
> + bool from_dma)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + struct v4l2_bt_timings *bt = &timings->bt;
> + u32 field_type, color_depth, deframer_st;
> + u32 val, tmdsqpclk_freq, pix_clk;
> + u64 tmp_data, tmds_clk;
> +
> + memset(timings, 0, sizeof(struct v4l2_dv_timings));
> + timings->type = V4L2_DV_BT_656_1120;
> +
> + val = hdmirx_readl(hdmirx_dev, DMA_STATUS11);
> + field_type = (val & HDMIRX_TYPE_MASK) >> 7;
> + hdmirx_get_pix_fmt(hdmirx_dev);
> + bt->interlaced = field_type & BIT(0) ? V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE;
> + val = hdmirx_readl(hdmirx_dev, PKTDEC_AVIIF_PB7_4);
> + hdmirx_dev->cur_vic = val | VIC_VAL_MASK;
> + hdmirx_get_colordepth(hdmirx_dev);
> + color_depth = hdmirx_dev->color_depth;
> + deframer_st = hdmirx_readl(hdmirx_dev, DEFRAMER_STATUS);
> + hdmirx_dev->is_dvi_mode = deframer_st & OPMODE_STS_MASK ? false : true;
> + tmdsqpclk_freq = hdmirx_readl(hdmirx_dev, CMU_TMDSQPCLK_FREQ);
> + tmds_clk = tmdsqpclk_freq * 4 * 1000;
> + tmp_data = tmds_clk * 24;
> + do_div(tmp_data, color_depth);
> + pix_clk = tmp_data;
> + bt->pixelclock = pix_clk;
> +
> + hdmirx_get_avi_infoframe(hdmirx_dev);
> +
> + hdmirx_get_timings(hdmirx_dev, bt, from_dma);
> + if (bt->interlaced == V4L2_DV_INTERLACED) {
> + bt->height *= 2;
> + bt->il_vsync = bt->vsync + 1;
> + }
> +
> + v4l2_dbg(2, debug, v4l2_dev, "tmds_clk:%llu\n", tmds_clk);
> + v4l2_dbg(1, debug, v4l2_dev, "interlace:%d, fmt:%d, vic:%d, color:%d, mode:%s\n",
> + bt->interlaced, hdmirx_dev->pix_fmt,
> + hdmirx_dev->cur_vic, hdmirx_dev->color_depth,
> + hdmirx_dev->is_dvi_mode ? "dvi" : "hdmi");
> + v4l2_dbg(2, debug, v4l2_dev, "deframer_st:%#x\n", deframer_st);
> +
> + if (!hdmirx_check_timing_valid(bt))
> + return -EINVAL;
> +
> + return 0;
> +}
> +
> +static bool port_no_link(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + return !tx_5v_power_present(hdmirx_dev);
> +}
> +
> +static int hdmirx_query_dv_timings(struct file *file, void *_fh,
> + struct v4l2_dv_timings *timings)
> +{
> + struct hdmirx_stream *stream = video_drvdata(file);
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + int ret;
> +
> + if (port_no_link(hdmirx_dev)) {
> + v4l2_err(v4l2_dev, "%s: port has no link\n", __func__);
> + return -ENOLINK;
> + }
> +
> + if (signal_not_lock(hdmirx_dev)) {
> + v4l2_err(v4l2_dev, "%s: signal is not locked\n", __func__);
> + return -ENOLCK;
> + }
> +
> + ret = hdmirx_get_detected_timings(hdmirx_dev, timings, true);
> + if (ret)
> + return ret;
> +
> + if (debug)
> + v4l2_print_dv_timings(hdmirx_dev->v4l2_dev.name,
> + "query_dv_timings: ", timings, false);
> +
> + if (!v4l2_valid_dv_timings(timings, &hdmirx_timings_cap, NULL, NULL)) {
> + v4l2_dbg(1, debug, v4l2_dev, "%s: timings out of range\n", __func__);
> + return -ERANGE;
> + }
> +
> + return 0;
> +}
> +
> +static void hdmirx_hpd_ctrl(struct snps_hdmirx_dev *hdmirx_dev, bool en)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> +
> + v4l2_dbg(1, debug, v4l2_dev, "%s: %sable, hpd_trigger_level:%d\n",
> + __func__, en ? "en" : "dis",
> + hdmirx_dev->hpd_trigger_level);
> + hdmirx_update_bits(hdmirx_dev, SCDC_CONFIG, HPDLOW, en ? 0 : HPDLOW);
> + en = hdmirx_dev->hpd_trigger_level ? en : !en;
> + hdmirx_writel(hdmirx_dev, CORE_CONFIG, en);
> +}
> +
> +static int hdmirx_write_edid(struct snps_hdmirx_dev *hdmirx_dev,
> + struct v4l2_edid *edid, bool hpd_up)
> +{
> + u32 edid_len = edid->blocks * EDID_BLOCK_SIZE;
> + char data[300];
> + u32 i;
> +
> + memset(edid->reserved, 0, sizeof(edid->reserved));
> + if (edid->pad)
> + return -EINVAL;
> +
> + if (edid->start_block)
> + return -EINVAL;
> +
> + if (edid->blocks > EDID_NUM_BLOCKS_MAX) {
> + edid->blocks = EDID_NUM_BLOCKS_MAX;
> + return -E2BIG;
> + }
> +
> + if (!edid->blocks) {
> + hdmirx_dev->edid_blocks_written = 0;
> + return 0;
> + }
> +
> + cec_s_phys_addr_from_edid(hdmirx_dev->cec->adap,
> + (const struct edid *)edid->edid);
> +
> + memset(&hdmirx_dev->edid, 0, sizeof(hdmirx_dev->edid));
> + hdmirx_hpd_ctrl(hdmirx_dev, false);
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG11,
> + EDID_READ_EN_MASK |
> + EDID_WRITE_EN_MASK |
> + EDID_SLAVE_ADDR_MASK,
> + EDID_READ_EN(0) |
> + EDID_WRITE_EN(1) |
> + EDID_SLAVE_ADDR(0x50));
> + for (i = 0; i < edid_len; i++)
> + hdmirx_writel(hdmirx_dev, DMA_CONFIG10, edid->edid[i]);
> +
> + /* read out for debug */
> + if (debug >= 2) {
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG11,
> + EDID_READ_EN_MASK |
> + EDID_WRITE_EN_MASK,
> + EDID_READ_EN(1) |
> + EDID_WRITE_EN(0));
> + edid_len = edid_len > sizeof(data) ? sizeof(data) : edid_len;
> + memset(data, 0, sizeof(data));
> + for (i = 0; i < edid_len; i++)
> + data[i] = hdmirx_readl(hdmirx_dev, DMA_STATUS14);
> +
> + print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 1, data,
> + edid_len, false);
> + }
> +
> + /*
> + * You must set EDID_READ_EN & EDID_WRITE_EN bit to 0,
> + * when the read/write edid operation is completed.Otherwise, it
> + * will affect the reading and writing of other registers
> + */
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG11,
> + EDID_READ_EN_MASK | EDID_WRITE_EN_MASK,
> + EDID_READ_EN(0) | EDID_WRITE_EN(0));
> +
> + hdmirx_dev->edid_blocks_written = edid->blocks;
> + memcpy(&hdmirx_dev->edid, edid->edid, edid->blocks * EDID_BLOCK_SIZE);
> + if (hpd_up) {
> + if (tx_5v_power_present(hdmirx_dev)) {
> + /* Add 100ms delay after updating the EDID as per HDMI specs */
> + msleep(100);
> + hdmirx_hpd_ctrl(hdmirx_dev, true);
> + }
> + }
> +
> + return 0;
> +}
> +
> +/*
> + * Before clearing interrupt, we need to read the interrupt status.
> + */
> +static inline void hdmirx_clear_interrupt(struct snps_hdmirx_dev *hdmirx_dev,
> + u32 reg, u32 val)
> +{
> + /* (interrupt status register) = (interrupt clear register) - 0x8 */
> + hdmirx_readl(hdmirx_dev, reg - 0x8);
> + hdmirx_writel(hdmirx_dev, reg, val);
> +}
> +
> +static void hdmirx_interrupts_setup(struct snps_hdmirx_dev *hdmirx_dev, bool en)
> +{
> + v4l2_dbg(1, debug, &hdmirx_dev->v4l2_dev, "%s: %sable\n",
> + __func__, en ? "en" : "dis");
> +
> + /* Note: In DVI mode, it needs to be written twice to take effect. */
> + hdmirx_clear_interrupt(hdmirx_dev, MAINUNIT_0_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, MAINUNIT_2_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, MAINUNIT_0_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, MAINUNIT_2_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, AVPUNIT_0_INT_CLEAR, 0xffffffff);
> +
> + if (en) {
> + hdmirx_update_bits(hdmirx_dev, MAINUNIT_0_INT_MASK_N,
> + TMDSQPCLK_OFF_CHG | TMDSQPCLK_LOCKED_CHG,
> + TMDSQPCLK_OFF_CHG | TMDSQPCLK_LOCKED_CHG);
> + hdmirx_update_bits(hdmirx_dev, MAINUNIT_2_INT_MASK_N,
> + TMDSVALID_STABLE_CHG, TMDSVALID_STABLE_CHG);
> + hdmirx_update_bits(hdmirx_dev, AVPUNIT_0_INT_MASK_N,
> + CED_DYN_CNT_CH2_IRQ |
> + CED_DYN_CNT_CH1_IRQ |
> + CED_DYN_CNT_CH0_IRQ,
> + CED_DYN_CNT_CH2_IRQ |
> + CED_DYN_CNT_CH1_IRQ |
> + CED_DYN_CNT_CH0_IRQ);
> + } else {
> + hdmirx_writel(hdmirx_dev, MAINUNIT_0_INT_MASK_N, 0);
> + hdmirx_writel(hdmirx_dev, MAINUNIT_2_INT_MASK_N, 0);
> + hdmirx_writel(hdmirx_dev, AVPUNIT_0_INT_MASK_N, 0);
> + }
> +}
> +
> +static void hdmirx_plugout(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + struct arm_smccc_res res;
> +
> + hdmirx_update_bits(hdmirx_dev, SCDC_CONFIG, POWERPROVIDED, 0);
> + hdmirx_interrupts_setup(hdmirx_dev, false);
> + hdmirx_hpd_ctrl(hdmirx_dev, false);
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG6, HDMIRX_DMA_EN, 0);
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG4,
> + LINE_FLAG_INT_EN |
> + HDMIRX_DMA_IDLE_INT |
> + HDMIRX_LOCK_DISABLE_INT |
> + LAST_FRAME_AXI_UNFINISH_INT_EN |
> + FIFO_OVERFLOW_INT_EN |
> + FIFO_UNDERFLOW_INT_EN |
> + HDMIRX_AXI_ERROR_INT_EN, 0);
> + hdmirx_reset_dma(hdmirx_dev);
> + hdmirx_update_bits(hdmirx_dev, PHY_CONFIG, HDMI_DISABLE | PHY_RESET |
> + PHY_PDDQ, HDMI_DISABLE);
> + hdmirx_writel(hdmirx_dev, PHYCREG_CONFIG0, 0x0);
> + cancel_delayed_work(&hdmirx_dev->delayed_work_res_change);
> + cancel_delayed_work_sync(&hdmirx_dev->delayed_work_heartbeat);
> + flush_work(&hdmirx_dev->work_wdt_config);
> + arm_smccc_smc(SIP_WDT_CFG, WDT_STOP, 0, 0, 0, 0, 0, 0, &res);
> +}
> +
> +static int hdmirx_set_edid(struct file *file, void *fh, struct v4l2_edid *edid)
> +{
> + struct hdmirx_stream *stream = video_drvdata(file);
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> + struct arm_smccc_res res;
> + int ret;
> +
> + disable_irq(hdmirx_dev->hdmi_irq);
> + disable_irq(hdmirx_dev->dma_irq);
> + arm_smccc_smc(RK_SIP_FIQ_CTRL, RK_SIP_FIQ_CTRL_FIQ_DIS,
> + RK_IRQ_HDMIRX_HDMI, 0, 0, 0, 0, 0, &res);
> +
> + if (tx_5v_power_present(hdmirx_dev))
> + hdmirx_plugout(hdmirx_dev);
> + ret = hdmirx_write_edid(hdmirx_dev, edid, false);
> + if (ret)
> + return ret;
> +
> + enable_irq(hdmirx_dev->hdmi_irq);
> + enable_irq(hdmirx_dev->dma_irq);
> + arm_smccc_smc(RK_SIP_FIQ_CTRL, RK_SIP_FIQ_CTRL_FIQ_EN,
> + RK_IRQ_HDMIRX_HDMI, 0, 0, 0, 0, 0, &res);
> + queue_delayed_work(system_unbound_wq,
> + &hdmirx_dev->delayed_work_hotplug,
> + msecs_to_jiffies(500));
> + return 0;
> +}
> +
> +static int hdmirx_get_edid(struct file *file, void *fh, struct v4l2_edid *edid)
> +{
> + struct hdmirx_stream *stream = video_drvdata(file);
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> +
> + memset(edid->reserved, 0, sizeof(edid->reserved));
> +
> + if (edid->pad)
> + return -EINVAL;
> +
> + if (!edid->start_block && !edid->blocks) {
> + edid->blocks = hdmirx_dev->edid_blocks_written;
> + return 0;
> + }
> +
> + if (!hdmirx_dev->edid_blocks_written)
> + return -ENODATA;
> +
> + if (edid->start_block >= hdmirx_dev->edid_blocks_written || !edid->blocks)
> + return -EINVAL;
> +
> + if (edid->start_block + edid->blocks > hdmirx_dev->edid_blocks_written)
> + edid->blocks = hdmirx_dev->edid_blocks_written - edid->start_block;
> +
> + memcpy(edid->edid, &hdmirx_dev->edid, edid->blocks * EDID_BLOCK_SIZE);
> +
> + v4l2_dbg(1, debug, v4l2_dev, "%s: read EDID:\n", __func__);
> + if (debug > 0)
> + print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 1,
> + edid->edid, edid->blocks * EDID_BLOCK_SIZE, false);
> +
> + return 0;
> +}
> +
> +static int hdmirx_g_parm(struct file *file, void *priv,
> + struct v4l2_streamparm *parm)
> +{
> + struct hdmirx_stream *stream = video_drvdata(file);
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> + struct v4l2_fract fps;
> +
> + if (parm->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
> + return -EINVAL;
> +
> + fps = v4l2_calc_timeperframe(&hdmirx_dev->timings);
> + parm->parm.capture.timeperframe.numerator = fps.numerator;
> + parm->parm.capture.timeperframe.denominator = fps.denominator;
> +
> + return 0;
> +}
> +
> +static int hdmirx_dv_timings_cap(struct file *file, void *fh,
> + struct v4l2_dv_timings_cap *cap)
> +{
> + *cap = hdmirx_timings_cap;
> + return 0;
> +}
> +
> +static int hdmirx_enum_dv_timings(struct file *file, void *_fh,
> + struct v4l2_enum_dv_timings *timings)
> +{
> + return v4l2_enum_dv_timings_cap(timings, &hdmirx_timings_cap, NULL, NULL);
> +}
> +
> +static void hdmirx_scdc_init(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + hdmirx_update_bits(hdmirx_dev, I2C_SLAVE_CONFIG1,
> + I2C_SDA_OUT_HOLD_VALUE_QST_MASK |
> + I2C_SDA_IN_HOLD_VALUE_QST_MASK,
> + I2C_SDA_OUT_HOLD_VALUE_QST(0x80) |
> + I2C_SDA_IN_HOLD_VALUE_QST(0x15));
> + hdmirx_update_bits(hdmirx_dev, SCDC_REGBANK_CONFIG0,
> + SCDC_SINKVERSION_QST_MASK,
> + SCDC_SINKVERSION_QST(1));
> +}
> +
> +static int wait_reg_bit_status(struct snps_hdmirx_dev *hdmirx_dev, u32 reg,
> + u32 bit_mask, u32 expect_val, bool is_grf,
> + u32 ms)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + u32 i, val;
> +
> + for (i = 0; i < ms; i++) {
> + if (is_grf)
> + regmap_read(hdmirx_dev->grf, reg, &val);
> + else
> + val = hdmirx_readl(hdmirx_dev, reg);
> +
> + if ((val & bit_mask) == expect_val) {
> + v4l2_dbg(2, debug, v4l2_dev,
> + "%s: i:%d, time: %dms\n", __func__, i, ms);
> + break;
> + }
> + usleep_range(1000, 1010);
> + }
> +
> + if (i == ms)
> + return -1;
> +
> + return 0;
> +}
> +
> +static int hdmirx_phy_register_write(struct snps_hdmirx_dev *hdmirx_dev,
> + u32 phy_reg, u32 val)
> +{
> + struct device *dev = hdmirx_dev->dev;
> +
> + reinit_completion(&hdmirx_dev->cr_write_done);
> + /* clear irq status */
> + hdmirx_clear_interrupt(hdmirx_dev, MAINUNIT_2_INT_CLEAR, 0xffffffff);
> + /* en irq */
> + hdmirx_update_bits(hdmirx_dev, MAINUNIT_2_INT_MASK_N,
> + PHYCREG_CR_WRITE_DONE, PHYCREG_CR_WRITE_DONE);
> + /* write phy reg addr */
> + hdmirx_writel(hdmirx_dev, PHYCREG_CONFIG1, phy_reg);
> + /* write phy reg val */
> + hdmirx_writel(hdmirx_dev, PHYCREG_CONFIG2, val);
> + /* config write enable */
> + hdmirx_writel(hdmirx_dev, PHYCREG_CONTROL, PHYCREG_CR_PARA_WRITE_P);
> +
> + if (!wait_for_completion_timeout(&hdmirx_dev->cr_write_done,
> + msecs_to_jiffies(20))) {
> + dev_err(dev, "%s wait cr write done failed\n", __func__);
> + return -1;
> + }
> +
> + return 0;
> +}
> +
> +static void hdmirx_tmds_clk_ratio_config(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + u32 val;
> +
> + val = hdmirx_readl(hdmirx_dev, SCDC_REGBANK_STATUS1);
> + v4l2_dbg(3, debug, v4l2_dev, "%s: scdc_regbank_st:%#x\n", __func__, val);
> + hdmirx_dev->tmds_clk_ratio = (val & SCDC_TMDSBITCLKRATIO) > 0;
> +
> + if (hdmirx_dev->tmds_clk_ratio) {
> + v4l2_dbg(3, debug, v4l2_dev, "%s: HDMITX greater than 3.4Gbps\n", __func__);
> + hdmirx_update_bits(hdmirx_dev, PHY_CONFIG,
> + TMDS_CLOCK_RATIO, TMDS_CLOCK_RATIO);
> + } else {
> + v4l2_dbg(3, debug, v4l2_dev, "%s: HDMITX less than 3.4Gbps\n", __func__);
> + hdmirx_update_bits(hdmirx_dev, PHY_CONFIG,
> + TMDS_CLOCK_RATIO, 0);
> + }
> +}
> +
> +static void hdmirx_phy_config(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + struct device *dev = hdmirx_dev->dev;
> +
> + hdmirx_clear_interrupt(hdmirx_dev, SCDC_INT_CLEAR, 0xffffffff);
> + hdmirx_update_bits(hdmirx_dev, SCDC_INT_MASK_N, SCDCTMDSCCFG_CHG,
> + SCDCTMDSCCFG_CHG);
> + /* cr_para_clk 24M */
> + hdmirx_update_bits(hdmirx_dev, PHY_CONFIG, REFFREQ_SEL_MASK, REFFREQ_SEL(0));
> + /* rx data width 40bit valid */
> + hdmirx_update_bits(hdmirx_dev, PHY_CONFIG, RXDATA_WIDTH, RXDATA_WIDTH);
> + hdmirx_update_bits(hdmirx_dev, PHY_CONFIG, PHY_RESET, PHY_RESET);
> + usleep_range(100, 110);
> + hdmirx_update_bits(hdmirx_dev, PHY_CONFIG, PHY_RESET, 0);
> + usleep_range(100, 110);
> + /* select cr para interface */
> + hdmirx_writel(hdmirx_dev, PHYCREG_CONFIG0, 0x3);
> +
> + if (wait_reg_bit_status(hdmirx_dev, SYS_GRF_SOC_STATUS1,
> + HDMIRXPHY_SRAM_INIT_DONE,
> + HDMIRXPHY_SRAM_INIT_DONE, true, 10))
> + dev_err(dev, "%s: phy SRAM init failed\n", __func__);
> +
> + regmap_write(hdmirx_dev->grf, SYS_GRF_SOC_CON1,
> + (HDMIRXPHY_SRAM_EXT_LD_DONE << 16) |
> + HDMIRXPHY_SRAM_EXT_LD_DONE);
> + hdmirx_phy_register_write(hdmirx_dev, SUP_DIG_ANA_CREGS_SUP_ANA_NC, 2);
> + hdmirx_phy_register_write(hdmirx_dev, SUP_DIG_ANA_CREGS_SUP_ANA_NC, 3);
> + hdmirx_phy_register_write(hdmirx_dev, SUP_DIG_ANA_CREGS_SUP_ANA_NC, 2);
> + hdmirx_phy_register_write(hdmirx_dev, SUP_DIG_ANA_CREGS_SUP_ANA_NC, 2);
> + hdmirx_phy_register_write(hdmirx_dev, SUP_DIG_ANA_CREGS_SUP_ANA_NC, 3);
> + hdmirx_phy_register_write(hdmirx_dev, SUP_DIG_ANA_CREGS_SUP_ANA_NC, 2);
> + hdmirx_phy_register_write(hdmirx_dev, SUP_DIG_ANA_CREGS_SUP_ANA_NC, 0);
> + hdmirx_phy_register_write(hdmirx_dev, SUP_DIG_ANA_CREGS_SUP_ANA_NC, 1);
> + hdmirx_phy_register_write(hdmirx_dev, SUP_DIG_ANA_CREGS_SUP_ANA_NC, 0);
> + hdmirx_phy_register_write(hdmirx_dev, SUP_DIG_ANA_CREGS_SUP_ANA_NC, 0);
> +
> + hdmirx_phy_register_write(hdmirx_dev,
> + HDMIPCS_DIG_CTRL_PATH_MAIN_FSM_RATE_CALC_HDMI14_CDR_SETTING_3_REG,
> + CDR_SETTING_BOUNDARY_3_DEFAULT);
> + hdmirx_phy_register_write(hdmirx_dev,
> + HDMIPCS_DIG_CTRL_PATH_MAIN_FSM_RATE_CALC_HDMI14_CDR_SETTING_4_REG,
> + CDR_SETTING_BOUNDARY_4_DEFAULT);
> + hdmirx_phy_register_write(hdmirx_dev,
> + HDMIPCS_DIG_CTRL_PATH_MAIN_FSM_RATE_CALC_HDMI14_CDR_SETTING_5_REG,
> + CDR_SETTING_BOUNDARY_5_DEFAULT);
> + hdmirx_phy_register_write(hdmirx_dev,
> + HDMIPCS_DIG_CTRL_PATH_MAIN_FSM_RATE_CALC_HDMI14_CDR_SETTING_6_REG,
> + CDR_SETTING_BOUNDARY_6_DEFAULT);
> + hdmirx_phy_register_write(hdmirx_dev,
> + HDMIPCS_DIG_CTRL_PATH_MAIN_FSM_RATE_CALC_HDMI14_CDR_SETTING_7_REG,
> + CDR_SETTING_BOUNDARY_7_DEFAULT);
> +
> + hdmirx_update_bits(hdmirx_dev, PHY_CONFIG, PHY_PDDQ, 0);
> + if (wait_reg_bit_status(hdmirx_dev, PHY_STATUS, PDDQ_ACK, 0, false, 10))
> + dev_err(dev, "%s: wait pddq ack failed\n", __func__);
> +
> + hdmirx_update_bits(hdmirx_dev, PHY_CONFIG, HDMI_DISABLE, 0);
> + if (wait_reg_bit_status(hdmirx_dev, PHY_STATUS, HDMI_DISABLE_ACK, 0,
> + false, 50))
> + dev_err(dev, "%s: wait hdmi disable ack failed\n", __func__);
> +
> + hdmirx_tmds_clk_ratio_config(hdmirx_dev);
> +}
> +
> +static void hdmirx_controller_init(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + struct device *dev = hdmirx_dev->dev;
> +
> + reinit_completion(&hdmirx_dev->timer_base_lock);
> + hdmirx_clear_interrupt(hdmirx_dev, MAINUNIT_0_INT_CLEAR, 0xffffffff);
> + /* en irq */
> + hdmirx_update_bits(hdmirx_dev, MAINUNIT_0_INT_MASK_N,
> + TIMER_BASE_LOCKED_IRQ, TIMER_BASE_LOCKED_IRQ);
> + /* write irefclk freq */
> + hdmirx_writel(hdmirx_dev, GLOBAL_TIMER_REF_BASE, IREF_CLK_FREQ_HZ);
> +
> + if (!wait_for_completion_timeout(&hdmirx_dev->timer_base_lock,
> + msecs_to_jiffies(20)))
> + dev_err(dev, "%s wait timer base lock failed\n", __func__);
> +
> + hdmirx_update_bits(hdmirx_dev, CMU_CONFIG0,
> + TMDSQPCLK_STABLE_FREQ_MARGIN_MASK |
> + AUDCLK_STABLE_FREQ_MARGIN_MASK,
> + TMDSQPCLK_STABLE_FREQ_MARGIN(2) |
> + AUDCLK_STABLE_FREQ_MARGIN(1));
> + hdmirx_update_bits(hdmirx_dev, DESCRAND_EN_CONTROL,
> + SCRAMB_EN_SEL_QST_MASK, SCRAMB_EN_SEL_QST(1));
> + hdmirx_update_bits(hdmirx_dev, CED_CONFIG,
> + CED_VIDDATACHECKEN_QST |
> + CED_DATAISCHECKEN_QST |
> + CED_GBCHECKEN_QST |
> + CED_CTRLCHECKEN_QST |
> + CED_CHLOCKMAXER_QST_MASK,
> + CED_VIDDATACHECKEN_QST |
> + CED_GBCHECKEN_QST |
> + CED_CTRLCHECKEN_QST |
> + CED_CHLOCKMAXER_QST(0x10));
> + hdmirx_update_bits(hdmirx_dev, DEFRAMER_CONFIG0,
> + VS_REMAPFILTER_EN_QST | VS_FILTER_ORDER_QST_MASK,
> + VS_REMAPFILTER_EN_QST | VS_FILTER_ORDER_QST(0x3));
> +}
> +
> +static void hdmirx_set_negative_pol(struct snps_hdmirx_dev *hdmirx_dev, bool en)
> +{
> + if (en) {
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG6,
> + VSYNC_TOGGLE_EN | HSYNC_TOGGLE_EN,
> + VSYNC_TOGGLE_EN | HSYNC_TOGGLE_EN);
> + hdmirx_update_bits(hdmirx_dev, VIDEO_CONFIG2,
> + VPROC_VSYNC_POL_OVR_VALUE |
> + VPROC_VSYNC_POL_OVR_EN |
> + VPROC_HSYNC_POL_OVR_VALUE |
> + VPROC_HSYNC_POL_OVR_EN,
> + VPROC_VSYNC_POL_OVR_EN |
> + VPROC_HSYNC_POL_OVR_EN);
> + return;
> + }
> +
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG6,
> + VSYNC_TOGGLE_EN | HSYNC_TOGGLE_EN, 0);
> +
> + hdmirx_update_bits(hdmirx_dev, VIDEO_CONFIG2,
> + VPROC_VSYNC_POL_OVR_VALUE |
> + VPROC_VSYNC_POL_OVR_EN |
> + VPROC_HSYNC_POL_OVR_VALUE |
> + VPROC_HSYNC_POL_OVR_EN, 0);
> +}
> +
> +static int hdmirx_try_to_get_timings(struct snps_hdmirx_dev *hdmirx_dev,
> + struct v4l2_dv_timings *timings,
> + int try_cnt)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + int i, cnt = 0, fail_cnt = 0, ret = 0;
> + bool from_dma = false;
> +
> + hdmirx_set_negative_pol(hdmirx_dev, false);
> + for (i = 0; i < try_cnt; i++) {
> + ret = hdmirx_get_detected_timings(hdmirx_dev, timings, from_dma);
> + if (ret) {
> + cnt = 0;
> + fail_cnt++;
> + if (fail_cnt > 3) {
> + hdmirx_set_negative_pol(hdmirx_dev, true);
> + from_dma = true;
> + }
> + } else {
> + cnt++;
> + }
> + if (cnt >= 5)
> + break;
> +
> + usleep_range(10 * 1000, 10 * 1100);
> + }
> +
> + if (try_cnt > 8 && cnt < 5)
> + v4l2_dbg(1, debug, v4l2_dev, "%s: res not stable\n", __func__);
> +
> + return ret;
> +}
> +
> +static void hdmirx_format_change(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + struct v4l2_dv_timings timings;
> + struct hdmirx_stream *stream = &hdmirx_dev->stream;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + const struct v4l2_event ev_src_chg = {
> + .type = V4L2_EVENT_SOURCE_CHANGE,
> + .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
> + };
> +
> + if (hdmirx_try_to_get_timings(hdmirx_dev, &timings, 20)) {
> + queue_delayed_work(system_unbound_wq,
> + &hdmirx_dev->delayed_work_hotplug,
> + msecs_to_jiffies(20));
> + return;
> + }
> +
> + hdmirx_dev->got_timing = true;
> + v4l2_dbg(1, debug, v4l2_dev, "%s: queue res_chg_event\n", __func__);
> + v4l2_event_queue(&stream->vdev, &ev_src_chg);
> +}
> +
> +static void hdmirx_set_ddr_store_fmt(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + enum ddr_store_fmt store_fmt;
> + u32 dma_cfg1;
> +
> + switch (hdmirx_dev->pix_fmt) {
> + case HDMIRX_RGB888:
> + store_fmt = STORE_RGB888;
> + break;
> + case HDMIRX_YUV444:
> + store_fmt = STORE_YUV444_8BIT;
> + break;
> + case HDMIRX_YUV422:
> + store_fmt = STORE_YUV422_8BIT;
> + break;
> + case HDMIRX_YUV420:
> + store_fmt = STORE_YUV420_8BIT;
> + break;
> + default:
> + store_fmt = STORE_RGB888;
> + break;
> + }
> +
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG1,
> + DDR_STORE_FORMAT_MASK, DDR_STORE_FORMAT(store_fmt));
> + dma_cfg1 = hdmirx_readl(hdmirx_dev, DMA_CONFIG1);
> + v4l2_dbg(1, debug, v4l2_dev, "%s: pix_fmt: %s, DMA_CONFIG1:%#x\n",
> + __func__, pix_fmt_str[hdmirx_dev->pix_fmt], dma_cfg1);
> +}
> +
> +static int hdmirx_wait_lock_and_get_timing(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + u32 mu_status, scdc_status, dma_st10, cmu_st;
> + u32 i;
> +
> + for (i = 0; i < 300; i++) {
> + mu_status = hdmirx_readl(hdmirx_dev, MAINUNIT_STATUS);
> + scdc_status = hdmirx_readl(hdmirx_dev, SCDC_REGBANK_STATUS3);
> + dma_st10 = hdmirx_readl(hdmirx_dev, DMA_STATUS10);
> + cmu_st = hdmirx_readl(hdmirx_dev, CMU_STATUS);
> +
> + if ((mu_status & TMDSVALID_STABLE_ST) &&
> + (dma_st10 & HDMIRX_LOCK) &&
> + (cmu_st & TMDSQPCLK_LOCKED_ST))
> + break;
> +
> + if (!tx_5v_power_present(hdmirx_dev)) {
> + v4l2_err(v4l2_dev, "%s: HDMI pull out, return\n", __func__);
> + return -1;
> + }
> +
> + hdmirx_tmds_clk_ratio_config(hdmirx_dev);
> + }
> +
> + if (i == 300) {
> + v4l2_err(v4l2_dev, "%s: signal not lock, tmds_clk_ratio:%d\n",
> + __func__, hdmirx_dev->tmds_clk_ratio);
> + v4l2_err(v4l2_dev, "%s: mu_st:%#x, scdc_st:%#x, dma_st10:%#x\n",
> + __func__, mu_status, scdc_status, dma_st10);
> + return -1;
> + }
> +
> + v4l2_info(v4l2_dev, "%s: signal lock ok, i:%d\n", __func__, i);
> + hdmirx_writel(hdmirx_dev, GLOBAL_SWRESET_REQUEST, DATAPATH_SWRESETREQ);
> +
> + reinit_completion(&hdmirx_dev->avi_pkt_rcv);
> + hdmirx_clear_interrupt(hdmirx_dev, PKT_2_INT_CLEAR, 0xffffffff);
> + hdmirx_update_bits(hdmirx_dev, PKT_2_INT_MASK_N,
> + PKTDEC_AVIIF_RCV_IRQ, PKTDEC_AVIIF_RCV_IRQ);
> +
> + if (!wait_for_completion_timeout(&hdmirx_dev->avi_pkt_rcv,
> + msecs_to_jiffies(300))) {
> + v4l2_err(v4l2_dev, "%s wait avi_pkt_rcv failed\n", __func__);
> + hdmirx_update_bits(hdmirx_dev, PKT_2_INT_MASK_N,
> + PKTDEC_AVIIF_RCV_IRQ, 0);
> + }
> +
> + usleep_range(50 * 1000, 50 * 1010);
> + hdmirx_format_change(hdmirx_dev);
> +
> + return 0;
> +}
> +
> +static void hdmirx_dma_config(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + hdmirx_set_ddr_store_fmt(hdmirx_dev);
> +
> + /* Note: uv_swap, rb can not swap, doc err*/
> + if (hdmirx_dev->cur_fmt_fourcc != V4L2_PIX_FMT_NV16)
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG6, RB_SWAP_EN, RB_SWAP_EN);
> + else
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG6, RB_SWAP_EN, 0);
> +
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG7,
> + LOCK_FRAME_NUM_MASK,
> + LOCK_FRAME_NUM(2));
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG1,
> + UV_WID_MASK | Y_WID_MASK | ABANDON_EN,
> + UV_WID(1) | Y_WID(2) | ABANDON_EN);
> +}
> +
> +static void hdmirx_submodule_init(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + /* Note: if not config HDCP2_CONFIG, there will be some errors; */
> + hdmirx_update_bits(hdmirx_dev, HDCP2_CONFIG,
> + HDCP2_SWITCH_OVR_VALUE |
> + HDCP2_SWITCH_OVR_EN,
> + HDCP2_SWITCH_OVR_EN);
> + hdmirx_scdc_init(hdmirx_dev);
> + hdmirx_controller_init(hdmirx_dev);
> +}
> +
> +static int hdmirx_enum_input(struct file *file, void *priv,
> + struct v4l2_input *input)
> +{
> + if (input->index > 0)
> + return -EINVAL;
> +
> + input->type = V4L2_INPUT_TYPE_CAMERA;
> + input->std = 0;
> + strscpy(input->name, "HDMI IN", sizeof(input->name));
> + input->capabilities = V4L2_IN_CAP_DV_TIMINGS;
> +
> + return 0;
> +}
> +
> +static int hdmirx_get_input(struct file *file, void *priv, unsigned int *i)
> +{
> + *i = 0;
> + return 0;
> +}
> +
> +static int hdmirx_set_input(struct file *file, void *priv, unsigned int i)
> +{
> + if (i)
> + return -EINVAL;
> + return 0;
> +}
> +
> +static void hdmirx_set_fmt(struct hdmirx_stream *stream,
> + struct v4l2_pix_format_mplane *pixm, bool try)
> +{
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + struct v4l2_bt_timings *bt = &hdmirx_dev->timings.bt;
> + const struct v4l2_format_info *finfo;
> + unsigned int imagesize = 0;
> + int i;
> +
> + memset(&pixm->plane_fmt[0], 0, sizeof(struct v4l2_plane_pix_format));
> + finfo = v4l2_format_info(pixm->pixelformat);
> + if (!finfo) {
> + finfo = v4l2_format_info(V4L2_PIX_FMT_BGR24);
> + v4l2_dbg(1, debug, v4l2_dev,
> + "%s: set_fmt:%#x not supported, use def_fmt:%x\n",
> + __func__, pixm->pixelformat, finfo->format);
> + }
> +
> + if (!bt->width || !bt->height)
> + v4l2_dbg(1, debug, v4l2_dev, "%s: invalid resolution:%#xx%#x\n",
> + __func__, bt->width, bt->height);
> +
> + pixm->pixelformat = finfo->format;
> + pixm->width = bt->width;
> + pixm->height = bt->height;
> + pixm->num_planes = finfo->mem_planes;
> + pixm->quantization = V4L2_QUANTIZATION_DEFAULT;
> + pixm->colorspace = V4L2_COLORSPACE_SRGB;
> + pixm->ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT;
> +
> + if (bt->interlaced == V4L2_DV_INTERLACED)
> + pixm->field = V4L2_FIELD_INTERLACED_TB;
> + else
> + pixm->field = V4L2_FIELD_NONE;
> +
> + memset(pixm->reserved, 0, sizeof(pixm->reserved));
> +
> + v4l2_fill_pixfmt_mp(pixm, finfo->format, pixm->width, pixm->height);
> +
> + for (i = 0; i < pixm->num_planes; i++) {
> + struct v4l2_plane_pix_format *plane_fmt;
> + int width, height, bpl, size, bpp = 0;
> +
> + if (!i) {
> + width = pixm->width;
> + height = pixm->height;
> + } else {
> + width = pixm->width / finfo->hdiv;
> + height = pixm->height / finfo->vdiv;
> + }
> +
> + switch (finfo->format) {
> + case V4L2_PIX_FMT_NV24:
> + case V4L2_PIX_FMT_NV16:
> + case V4L2_PIX_FMT_NV12:
> + case V4L2_PIX_FMT_BGR24:
> + bpp = finfo->bpp[i];
> + break;
> + default:
> + v4l2_dbg(1, debug, v4l2_dev,
> + "fourcc: %#x is not supported\n",
> + finfo->format);
> + break;
> + }
> +
> + bpl = ALIGN(width * bpp, MEMORY_ALIGN_ROUND_UP_BYTES);
> + size = bpl * height;
> + imagesize += size;
> +
> + if (finfo->mem_planes > i) {
> + /* Set bpl and size for each mplane */
> + plane_fmt = pixm->plane_fmt + i;
> + plane_fmt->bytesperline = bpl;
> + plane_fmt->sizeimage = size;
> + }
> +
> + v4l2_dbg(1, debug, v4l2_dev,
> + "C-Plane %i size: %d, Total imagesize: %d\n",
> + i, size, imagesize);
> + }
> +
> + /* Convert to non-MPLANE format as we want to unify non-MPLANE and MPLANE */
> + if (finfo->mem_planes == 1)
> + pixm->plane_fmt[0].sizeimage = imagesize;
> +
> + if (!try) {
> + stream->out_finfo = finfo;
> + stream->pixm = *pixm;
> + v4l2_dbg(1, debug, v4l2_dev,
> + "%s: req(%d, %d), out(%d, %d), fmt:%#x\n", __func__,
> + pixm->width, pixm->height, stream->pixm.width,
> + stream->pixm.height, finfo->format);
> + }
> +}
> +
> +static int hdmirx_enum_fmt_vid_cap_mplane(struct file *file, void *priv,
> + struct v4l2_fmtdesc *f)
> +{
> + struct hdmirx_stream *stream = video_drvdata(file);
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> +
> + if (f->index >= 1)
> + return -EINVAL;
> +
> + f->pixelformat = hdmirx_dev->cur_fmt_fourcc;
> +
> + return 0;
> +}
> +
> +static int hdmirx_s_fmt_vid_cap_mplane(struct file *file,
> + void *priv, struct v4l2_format *f)
> +{
> + struct hdmirx_stream *stream = video_drvdata(file);
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> +
> + if (vb2_is_busy(&stream->buf_queue)) {
> + v4l2_err(v4l2_dev, "%s: queue busy\n", __func__);
> + return -EBUSY;
> + }
> +
> + hdmirx_set_fmt(stream, &f->fmt.pix_mp, false);
> +
> + return 0;
> +}
> +
> +static int hdmirx_g_fmt_vid_cap_mplane(struct file *file, void *fh,
> + struct v4l2_format *f)
> +{
> + struct hdmirx_stream *stream = video_drvdata(file);
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> + struct v4l2_pix_format_mplane pixm = {};
> +
> + pixm.pixelformat = hdmirx_dev->cur_fmt_fourcc;
> + hdmirx_set_fmt(stream, &pixm, true);
> + f->fmt.pix_mp = pixm;
> +
> + return 0;
> +}
> +
> +static int hdmirx_g_dv_timings(struct file *file, void *_fh,
> + struct v4l2_dv_timings *timings)
> +{
> + struct hdmirx_stream *stream = video_drvdata(file);
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + u32 dma_cfg1;
> +
> + *timings = hdmirx_dev->timings;
> + dma_cfg1 = hdmirx_readl(hdmirx_dev, DMA_CONFIG1);
> + v4l2_dbg(1, debug, v4l2_dev, "%s: pix_fmt: %s, DMA_CONFIG1:%#x\n",
> + __func__, pix_fmt_str[hdmirx_dev->pix_fmt], dma_cfg1);
> +
> + return 0;
> +}
> +
> +static int hdmirx_s_dv_timings(struct file *file, void *_fh,
> + struct v4l2_dv_timings *timings)
> +{
> + struct hdmirx_stream *stream = video_drvdata(file);
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> +
> + if (!timings)
> + return -EINVAL;
> +
> + if (debug)
> + v4l2_print_dv_timings(hdmirx_dev->v4l2_dev.name,
> + "s_dv_timings: ", timings, false);
> +
> + if (!v4l2_valid_dv_timings(timings, &hdmirx_timings_cap, NULL, NULL)) {
> + v4l2_dbg(1, debug, v4l2_dev,
> + "%s: timings out of range\n", __func__);
> + return -ERANGE;
> + }
> +
> + /* Check if the timings are part of the CEA-861 timings. */
> + v4l2_find_dv_timings_cap(timings, &hdmirx_timings_cap, 0, NULL, NULL);
> +
> + if (v4l2_match_dv_timings(&hdmirx_dev->timings, timings, 0, false)) {
> + v4l2_dbg(1, debug, v4l2_dev, "%s: no change\n", __func__);
> + return 0;
> + }
> +
> + /*
> + * Changing the timings implies a format change, which is not allowed
> + * while buffers for use with streaming have already been allocated.
> + */
> + if (vb2_is_busy(&stream->buf_queue))
> + return -EBUSY;
> +
> + hdmirx_dev->timings = *timings;
> + /* Update the internal format */
> + hdmirx_set_fmt(stream, &stream->pixm, false);
> +
> + return 0;
> +}
> +
> +static int hdmirx_querycap(struct file *file, void *priv,
> + struct v4l2_capability *cap)
> +{
> + struct hdmirx_stream *stream = video_drvdata(file);
> + struct device *dev = stream->hdmirx_dev->dev;
> +
> + strscpy(cap->driver, dev->driver->name, sizeof(cap->driver));
> + strscpy(cap->card, dev->driver->name, sizeof(cap->card));
> +
> + return 0;
> +}
> +
> +static int hdmirx_queue_setup(struct vb2_queue *queue,
> + unsigned int *num_buffers,
> + unsigned int *num_planes,
> + unsigned int sizes[],
> + struct device *alloc_ctxs[])
> +{
> + struct hdmirx_stream *stream = vb2_get_drv_priv(queue);
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + const struct v4l2_pix_format_mplane *pixm = NULL;
> + const struct v4l2_format_info *out_finfo;
> + u32 i, height;
> +
> + pixm = &stream->pixm;
> + out_finfo = stream->out_finfo;
> +
> + if (!num_planes || !out_finfo) {
> + v4l2_err(v4l2_dev, "%s: out_fmt not set\n", __func__);
> + return -EINVAL;
> + }
> +
> + if (*num_planes) {
> + if (*num_planes != pixm->num_planes)
> + return -EINVAL;
> +
> + for (i = 0; i < *num_planes; i++)
> + if (sizes[i] < pixm->plane_fmt[i].sizeimage)
> + return -EINVAL;
> + return 0;
> + }
> +
> + *num_planes = out_finfo->mem_planes;
> + height = pixm->height;
> +
> + for (i = 0; i < out_finfo->mem_planes; i++)
> + sizes[i] = pixm->plane_fmt[i].sizeimage;
> +
> + v4l2_dbg(1, debug, v4l2_dev, "%s: count %d, size %d\n",
> + v4l2_type_names[queue->type], *num_buffers, sizes[0]);
> +
> + return 0;
> +}
> +
> +/*
> + * The vb2_buffer are stored in hdmirx_buffer, in order to unify
> + * mplane buffer and none-mplane buffer.
> + */
> +static void hdmirx_buf_queue(struct vb2_buffer *vb)
> +{
> + const struct v4l2_format_info *out_finfo;
> + struct vb2_v4l2_buffer *vbuf;
> + struct hdmirx_buffer *hdmirx_buf;
> + struct vb2_queue *queue;
> + struct hdmirx_stream *stream;
> + const struct v4l2_pix_format_mplane *pixm;
> + unsigned long lock_flags = 0;
> + int i;
> +
> + vbuf = to_vb2_v4l2_buffer(vb);
> + hdmirx_buf = container_of(vbuf, struct hdmirx_buffer, vb);
> + queue = vb->vb2_queue;
> + stream = vb2_get_drv_priv(queue);
> + pixm = &stream->pixm;
> + out_finfo = stream->out_finfo;
> +
> + memset(hdmirx_buf->buff_addr, 0, sizeof(hdmirx_buf->buff_addr));
> +
> + /*
> + * If mplanes > 1, every c-plane has its own m-plane,
> + * otherwise, multiple c-planes are in the same m-plane
> + */
> + for (i = 0; i < out_finfo->mem_planes; i++)
> + hdmirx_buf->buff_addr[i] = vb2_dma_contig_plane_dma_addr(vb, i);
> +
> + if (out_finfo->mem_planes == 1) {
> + if (out_finfo->comp_planes == 1) {
> + hdmirx_buf->buff_addr[HDMIRX_PLANE_CBCR] =
> + hdmirx_buf->buff_addr[HDMIRX_PLANE_Y];
> + } else {
> + for (i = 0; i < out_finfo->comp_planes - 1; i++)
> + hdmirx_buf->buff_addr[i + 1] =
> + hdmirx_buf->buff_addr[i] +
> + pixm->plane_fmt[i].bytesperline *
> + pixm->height;
> + }
> + }
> +
> + spin_lock_irqsave(&stream->vbq_lock, lock_flags);
> + list_add_tail(&hdmirx_buf->queue, &stream->buf_head);
> + spin_unlock_irqrestore(&stream->vbq_lock, lock_flags);
> +}
> +
> +static void return_all_buffers(struct hdmirx_stream *stream,
> + enum vb2_buffer_state state)
> +{
> + struct hdmirx_buffer *buf;
> + unsigned long flags;
> +
> + spin_lock_irqsave(&stream->vbq_lock, flags);
> + if (stream->curr_buf)
> + list_add_tail(&stream->curr_buf->queue, &stream->buf_head);
> + if (stream->next_buf && stream->next_buf != stream->curr_buf)
> + list_add_tail(&stream->next_buf->queue, &stream->buf_head);
> + stream->curr_buf = NULL;
> + stream->next_buf = NULL;
> +
> + while (!list_empty(&stream->buf_head)) {
> + buf = list_first_entry(&stream->buf_head,
> + struct hdmirx_buffer, queue);
> + list_del(&buf->queue);
> + spin_unlock_irqrestore(&stream->vbq_lock, flags);
> + vb2_buffer_done(&buf->vb.vb2_buf, state);
> + spin_lock_irqsave(&stream->vbq_lock, flags);
> + }
> + spin_unlock_irqrestore(&stream->vbq_lock, flags);
> +}
> +
> +static void hdmirx_stop_streaming(struct vb2_queue *queue)
> +{
> + struct hdmirx_stream *stream = vb2_get_drv_priv(queue);
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + int ret;
> +
> + v4l2_info(v4l2_dev, "stream start stopping\n");
> + mutex_lock(&hdmirx_dev->stream_lock);
> + WRITE_ONCE(stream->stopping, true);
> +
> + /* wait last irq to return the buffer */
> + ret = wait_event_timeout(stream->wq_stopped, !stream->stopping,
> + msecs_to_jiffies(500));
> + if (!ret) {
> + v4l2_err(v4l2_dev, "%s: timeout waiting last irq\n",
> + __func__);
> + WRITE_ONCE(stream->stopping, false);
> + }
> +
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG6, HDMIRX_DMA_EN, 0);
> + return_all_buffers(stream, VB2_BUF_STATE_ERROR);
> + mutex_unlock(&hdmirx_dev->stream_lock);
> + v4l2_info(v4l2_dev, "stream stopping finished\n");
> +}
> +
> +static int hdmirx_start_streaming(struct vb2_queue *queue, unsigned int count)
> +{
> + struct hdmirx_stream *stream = vb2_get_drv_priv(queue);
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + struct v4l2_dv_timings timings = hdmirx_dev->timings;
> + struct v4l2_bt_timings *bt = &timings.bt;
> + unsigned long lock_flags = 0;
> + int line_flag;
> +
> + if (!hdmirx_dev->got_timing) {
> + v4l2_dbg(1, debug, v4l2_dev, "timing is invalid\n");
> + return 0;
> + }
> +
> + mutex_lock(&hdmirx_dev->stream_lock);
> + stream->frame_idx = 0;
> + stream->line_flag_int_cnt = 0;
> + stream->curr_buf = NULL;
> + stream->next_buf = NULL;
> + stream->irq_stat = 0;
> + queue->min_queued_buffers = 1;
> +
> + WRITE_ONCE(stream->stopping, false);
> +
> + spin_lock_irqsave(&stream->vbq_lock, lock_flags);
> + if (!stream->curr_buf) {
> + if (!list_empty(&stream->buf_head)) {
> + stream->curr_buf = list_first_entry(&stream->buf_head,
> + struct hdmirx_buffer,
> + queue);
> + list_del(&stream->curr_buf->queue);
> + } else {
> + stream->curr_buf = NULL;
> + }
> + }
> + spin_unlock_irqrestore(&stream->vbq_lock, lock_flags);
> +
> + v4l2_dbg(2, debug, v4l2_dev,
> + "%s: start_stream cur_buf y_addr:%#x, uv_addr:%#x\n",
> + __func__, stream->curr_buf->buff_addr[HDMIRX_PLANE_Y],
> + stream->curr_buf->buff_addr[HDMIRX_PLANE_CBCR]);
> + hdmirx_writel(hdmirx_dev, DMA_CONFIG2,
> + stream->curr_buf->buff_addr[HDMIRX_PLANE_Y]);
> + hdmirx_writel(hdmirx_dev, DMA_CONFIG3,
> + stream->curr_buf->buff_addr[HDMIRX_PLANE_CBCR]);
> +
> + if (bt->height) {
> + if (bt->interlaced == V4L2_DV_INTERLACED)
> + line_flag = bt->height / 4;
> + else
> + line_flag = bt->height / 2;
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG7,
> + LINE_FLAG_NUM_MASK,
> + LINE_FLAG_NUM(line_flag));
> + } else {
> + v4l2_err(v4l2_dev, "height err: %d\n", bt->height);
> + }
> +
> + hdmirx_writel(hdmirx_dev, DMA_CONFIG5, 0xffffffff);
> + hdmirx_writel(hdmirx_dev, CED_DYN_CONTROL, 0x1);
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG4,
> + LINE_FLAG_INT_EN |
> + HDMIRX_DMA_IDLE_INT |
> + HDMIRX_LOCK_DISABLE_INT |
> + LAST_FRAME_AXI_UNFINISH_INT_EN |
> + FIFO_OVERFLOW_INT_EN |
> + FIFO_UNDERFLOW_INT_EN |
> + HDMIRX_AXI_ERROR_INT_EN,
> + LINE_FLAG_INT_EN |
> + HDMIRX_DMA_IDLE_INT |
> + HDMIRX_LOCK_DISABLE_INT |
> + LAST_FRAME_AXI_UNFINISH_INT_EN |
> + FIFO_OVERFLOW_INT_EN |
> + FIFO_UNDERFLOW_INT_EN |
> + HDMIRX_AXI_ERROR_INT_EN);
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG6, HDMIRX_DMA_EN, HDMIRX_DMA_EN);
> + v4l2_dbg(1, debug, v4l2_dev, "%s: enable dma", __func__);
> + mutex_unlock(&hdmirx_dev->stream_lock);
> +
> + return 0;
> +}
> +
> +/* vb2 queue */
> +static const struct vb2_ops hdmirx_vb2_ops = {
> + .queue_setup = hdmirx_queue_setup,
> + .buf_queue = hdmirx_buf_queue,
> + .wait_prepare = vb2_ops_wait_prepare,
> + .wait_finish = vb2_ops_wait_finish,
> + .stop_streaming = hdmirx_stop_streaming,
> + .start_streaming = hdmirx_start_streaming,
> +};
> +
> +static int hdmirx_init_vb2_queue(struct vb2_queue *q,
> + struct hdmirx_stream *stream,
> + enum v4l2_buf_type buf_type)
> +{
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> +
> + q->type = buf_type;
> + q->io_modes = VB2_MMAP | VB2_DMABUF;
> + q->drv_priv = stream;
> + q->ops = &hdmirx_vb2_ops;
> + q->mem_ops = &vb2_dma_contig_memops;
> + q->buf_struct_size = sizeof(struct hdmirx_buffer);
> + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
> + q->lock = &stream->vlock;
> + q->dev = hdmirx_dev->dev;
> + /*
> + * rk3588 doesn't use iommu and works only with dma buffers
> + * that are physically contiguous in memory.
> + */
> + q->dma_attrs = DMA_ATTR_FORCE_CONTIGUOUS;
> + return vb2_queue_init(q);
> +}
> +
> +/* video device */
> +static const struct v4l2_ioctl_ops hdmirx_v4l2_ioctl_ops = {
> + .vidioc_querycap = hdmirx_querycap,
> + .vidioc_try_fmt_vid_cap_mplane = hdmirx_g_fmt_vid_cap_mplane,
> + .vidioc_s_fmt_vid_cap_mplane = hdmirx_s_fmt_vid_cap_mplane,
> + .vidioc_g_fmt_vid_cap_mplane = hdmirx_g_fmt_vid_cap_mplane,
> + .vidioc_enum_fmt_vid_cap = hdmirx_enum_fmt_vid_cap_mplane,
> +
> + .vidioc_s_dv_timings = hdmirx_s_dv_timings,
> + .vidioc_g_dv_timings = hdmirx_g_dv_timings,
> + .vidioc_enum_dv_timings = hdmirx_enum_dv_timings,
> + .vidioc_query_dv_timings = hdmirx_query_dv_timings,
> + .vidioc_dv_timings_cap = hdmirx_dv_timings_cap,
> + .vidioc_enum_input = hdmirx_enum_input,
> + .vidioc_g_input = hdmirx_get_input,
> + .vidioc_s_input = hdmirx_set_input,
> + .vidioc_g_edid = hdmirx_get_edid,
> + .vidioc_s_edid = hdmirx_set_edid,
> + .vidioc_g_parm = hdmirx_g_parm,
> +
> + .vidioc_reqbufs = vb2_ioctl_reqbufs,
> + .vidioc_querybuf = vb2_ioctl_querybuf,
> + .vidioc_create_bufs = vb2_ioctl_create_bufs,
> + .vidioc_qbuf = vb2_ioctl_qbuf,
> + .vidioc_expbuf = vb2_ioctl_expbuf,
> + .vidioc_dqbuf = vb2_ioctl_dqbuf,
> + .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
> + .vidioc_streamon = vb2_ioctl_streamon,
> + .vidioc_streamoff = vb2_ioctl_streamoff,
> +
> + .vidioc_log_status = v4l2_ctrl_log_status,
> + .vidioc_subscribe_event = hdmirx_subscribe_event,
> + .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
> +};
> +
> +static const struct v4l2_file_operations hdmirx_fops = {
> + .owner = THIS_MODULE,
> + .open = v4l2_fh_open,
> + .release = vb2_fop_release,
> + .unlocked_ioctl = video_ioctl2,
> + .poll = vb2_fop_poll,
> + .mmap = vb2_fop_mmap,
> +};
> +
> +static int hdmirx_register_stream_vdev(struct hdmirx_stream *stream)
> +{
> + struct snps_hdmirx_dev *hdmirx_dev = stream->hdmirx_dev;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + struct video_device *vdev = &stream->vdev;
> + int ret = 0;
> +
> + strscpy(vdev->name, "stream_hdmirx", sizeof(vdev->name));
> + INIT_LIST_HEAD(&stream->buf_head);
> + spin_lock_init(&stream->vbq_lock);
> + mutex_init(&stream->vlock);
> + init_waitqueue_head(&stream->wq_stopped);
> + stream->curr_buf = NULL;
> + stream->next_buf = NULL;
> +
> + vdev->ioctl_ops = &hdmirx_v4l2_ioctl_ops;
> + vdev->release = video_device_release_empty;
> + vdev->fops = &hdmirx_fops;
> + vdev->minor = -1;
> + vdev->v4l2_dev = v4l2_dev;
> + vdev->lock = &stream->vlock;
> + vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE_MPLANE |
> + V4L2_CAP_STREAMING;
> + video_set_drvdata(vdev, stream);
> + vdev->vfl_dir = VFL_DIR_RX;
> +
> + hdmirx_init_vb2_queue(&stream->buf_queue, stream,
> + V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE);
> + vdev->queue = &stream->buf_queue;
> +
> + ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
> + if (ret < 0) {
> + v4l2_err(v4l2_dev, "video_register_device failed: %d\n", ret);
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static void process_signal_change(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG6, HDMIRX_DMA_EN, 0);
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG4,
> + LINE_FLAG_INT_EN |
> + HDMIRX_DMA_IDLE_INT |
> + HDMIRX_LOCK_DISABLE_INT |
> + LAST_FRAME_AXI_UNFINISH_INT_EN |
> + FIFO_OVERFLOW_INT_EN |
> + FIFO_UNDERFLOW_INT_EN |
> + HDMIRX_AXI_ERROR_INT_EN, 0);
> + hdmirx_reset_dma(hdmirx_dev);
> + hdmirx_dev->got_timing = false;
> + queue_delayed_work(system_unbound_wq,
> + &hdmirx_dev->delayed_work_res_change,
> + msecs_to_jiffies(50));
> +}
> +
> +static void avpunit_0_int_handler(struct snps_hdmirx_dev *hdmirx_dev,
> + int status, bool *handled)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> +
> + if (status & (CED_DYN_CNT_CH2_IRQ |
> + CED_DYN_CNT_CH1_IRQ |
> + CED_DYN_CNT_CH0_IRQ)) {
> + process_signal_change(hdmirx_dev);
> + v4l2_dbg(2, debug, v4l2_dev, "%s: avp0_st:%#x\n",
> + __func__, status);
> + *handled = true;
> + }
> +
> + hdmirx_clear_interrupt(hdmirx_dev, AVPUNIT_0_INT_CLEAR, 0xffffffff);
> + hdmirx_writel(hdmirx_dev, AVPUNIT_0_INT_FORCE, 0x0);
> +}
> +
> +static void avpunit_1_int_handler(struct snps_hdmirx_dev *hdmirx_dev,
> + int status, bool *handled)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> +
> + if (status & DEFRAMER_VSYNC_THR_REACHED_IRQ) {
> + v4l2_info(v4l2_dev, "Vertical Sync threshold reached interrupt %#x", status);
> + hdmirx_update_bits(hdmirx_dev, AVPUNIT_1_INT_MASK_N,
> + DEFRAMER_VSYNC_THR_REACHED_MASK_N, 0);
> + *handled = true;
> + }
> +}
> +
> +static void mainunit_0_int_handler(struct snps_hdmirx_dev *hdmirx_dev,
> + int status, bool *handled)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> +
> + v4l2_dbg(2, debug, v4l2_dev, "mu0_st:%#x\n", status);
> + if (status & TIMER_BASE_LOCKED_IRQ) {
> + hdmirx_update_bits(hdmirx_dev, MAINUNIT_0_INT_MASK_N,
> + TIMER_BASE_LOCKED_IRQ, 0);
> + complete(&hdmirx_dev->timer_base_lock);
> + *handled = true;
> + }
> +
> + if (status & TMDSQPCLK_OFF_CHG) {
> + process_signal_change(hdmirx_dev);
> + v4l2_dbg(2, debug, v4l2_dev, "%s: TMDSQPCLK_OFF_CHG\n", __func__);
> + *handled = true;
> + }
> +
> + if (status & TMDSQPCLK_LOCKED_CHG) {
> + process_signal_change(hdmirx_dev);
> + v4l2_dbg(2, debug, v4l2_dev, "%s: TMDSQPCLK_LOCKED_CHG\n", __func__);
> + *handled = true;
> + }
> +
> + hdmirx_clear_interrupt(hdmirx_dev, MAINUNIT_0_INT_CLEAR, 0xffffffff);
> + hdmirx_writel(hdmirx_dev, MAINUNIT_0_INT_FORCE, 0x0);
> +}
> +
> +static void mainunit_2_int_handler(struct snps_hdmirx_dev *hdmirx_dev,
> + int status, bool *handled)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> +
> + v4l2_dbg(2, debug, v4l2_dev, "mu2_st:%#x\n", status);
> + if (status & PHYCREG_CR_WRITE_DONE) {
> + hdmirx_update_bits(hdmirx_dev, MAINUNIT_2_INT_MASK_N,
> + PHYCREG_CR_WRITE_DONE, 0);
> + complete(&hdmirx_dev->cr_write_done);
> + *handled = true;
> + }
> +
> + if (status & TMDSVALID_STABLE_CHG) {
> + process_signal_change(hdmirx_dev);
> + v4l2_dbg(2, debug, v4l2_dev, "%s: TMDSVALID_STABLE_CHG\n", __func__);
> + *handled = true;
> + }
> +
> + hdmirx_clear_interrupt(hdmirx_dev, MAINUNIT_2_INT_CLEAR, 0xffffffff);
> + hdmirx_writel(hdmirx_dev, MAINUNIT_2_INT_FORCE, 0x0);
> +}
> +
> +static void pkt_2_int_handler(struct snps_hdmirx_dev *hdmirx_dev,
> + int status, bool *handled)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> +
> + v4l2_dbg(2, debug, v4l2_dev, "%s: pk2_st:%#x\n", __func__, status);
> + if (status & PKTDEC_AVIIF_RCV_IRQ) {
> + hdmirx_update_bits(hdmirx_dev, PKT_2_INT_MASK_N,
> + PKTDEC_AVIIF_RCV_IRQ, 0);
> + complete(&hdmirx_dev->avi_pkt_rcv);
> + v4l2_dbg(2, debug, v4l2_dev, "%s: AVIIF_RCV_IRQ\n", __func__);
> + *handled = true;
> + }
> +
> + hdmirx_clear_interrupt(hdmirx_dev, PKT_2_INT_CLEAR, 0xffffffff);
> +}
> +
> +static void scdc_int_handler(struct snps_hdmirx_dev *hdmirx_dev,
> + int status, bool *handled)
> +{
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> +
> + v4l2_dbg(2, debug, v4l2_dev, "%s: scdc_st:%#x\n", __func__, status);
> + if (status & SCDCTMDSCCFG_CHG) {
> + hdmirx_tmds_clk_ratio_config(hdmirx_dev);
> + *handled = true;
> + }
> +
> + hdmirx_clear_interrupt(hdmirx_dev, SCDC_INT_CLEAR, 0xffffffff);
> +}
> +
> +static irqreturn_t hdmirx_hdmi_irq_handler(int irq, void *dev_id)
> +{
> + struct snps_hdmirx_dev *hdmirx_dev = dev_id;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + struct arm_smccc_res res;
> + u32 mu0_st, mu2_st, pk2_st, scdc_st, avp1_st, avp0_st;
> + u32 mu0_mask, mu2_mask, pk2_mask, scdc_mask, avp1_msk, avp0_msk;
> + bool handled = false;
> +
> + mu0_mask = hdmirx_readl(hdmirx_dev, MAINUNIT_0_INT_MASK_N);
> + mu2_mask = hdmirx_readl(hdmirx_dev, MAINUNIT_2_INT_MASK_N);
> + pk2_mask = hdmirx_readl(hdmirx_dev, PKT_2_INT_MASK_N);
> + scdc_mask = hdmirx_readl(hdmirx_dev, SCDC_INT_MASK_N);
> + mu0_st = hdmirx_readl(hdmirx_dev, MAINUNIT_0_INT_STATUS);
> + mu2_st = hdmirx_readl(hdmirx_dev, MAINUNIT_2_INT_STATUS);
> + pk2_st = hdmirx_readl(hdmirx_dev, PKT_2_INT_STATUS);
> + scdc_st = hdmirx_readl(hdmirx_dev, SCDC_INT_STATUS);
> + avp0_st = hdmirx_readl(hdmirx_dev, AVPUNIT_0_INT_STATUS);
> + avp1_st = hdmirx_readl(hdmirx_dev, AVPUNIT_1_INT_STATUS);
> + avp0_msk = hdmirx_readl(hdmirx_dev, AVPUNIT_0_INT_MASK_N);
> + avp1_msk = hdmirx_readl(hdmirx_dev, AVPUNIT_1_INT_MASK_N);
> + mu0_st &= mu0_mask;
> + mu2_st &= mu2_mask;
> + pk2_st &= pk2_mask;
> + avp1_st &= avp1_msk;
> + avp0_st &= avp0_msk;
> + scdc_st &= scdc_mask;
> +
> + if (avp0_st)
> + avpunit_0_int_handler(hdmirx_dev, avp0_st, &handled);
> + if (avp1_st)
> + avpunit_1_int_handler(hdmirx_dev, avp1_st, &handled);
> + if (mu0_st)
> + mainunit_0_int_handler(hdmirx_dev, mu0_st, &handled);
> + if (mu2_st)
> + mainunit_2_int_handler(hdmirx_dev, mu2_st, &handled);
> + if (pk2_st)
> + pkt_2_int_handler(hdmirx_dev, pk2_st, &handled);
> + if (scdc_st)
> + scdc_int_handler(hdmirx_dev, scdc_st, &handled);
> +
> + if (!handled) {
> + v4l2_dbg(2, debug, v4l2_dev, "%s: hdmi irq not handled", __func__);
> + v4l2_dbg(2, debug, v4l2_dev,
> + "avp0:%#x, avp1:%#x, mu0:%#x, mu2:%#x, pk2:%#x, scdc:%#x\n",
> + avp0_st, avp1_st, mu0_st, mu2_st, pk2_st, scdc_st);
> + }
> +
> + v4l2_dbg(2, debug, v4l2_dev, "%s: en_fiq", __func__);
> + arm_smccc_smc(RK_SIP_FIQ_CTRL, RK_SIP_FIQ_CTRL_FIQ_EN,
> + RK_IRQ_HDMIRX_HDMI, 0, 0, 0, 0, 0, &res);
> +
> + return handled ? IRQ_HANDLED : IRQ_NONE;
> +}
> +
> +static void hdmirx_vb_done(struct hdmirx_stream *stream,
> + struct vb2_v4l2_buffer *vb_done)
> +{
> + const struct v4l2_format_info *finfo = stream->out_finfo;
> + u32 i;
> +
> + /* Dequeue a filled buffer */
> + for (i = 0; i < finfo->mem_planes; i++) {
> + vb2_set_plane_payload(&vb_done->vb2_buf, i,
> + stream->pixm.plane_fmt[i].sizeimage);
> + }
> +
> + vb_done->vb2_buf.timestamp = ktime_get_ns();
> + vb2_buffer_done(&vb_done->vb2_buf, VB2_BUF_STATE_DONE);
> +}
> +
> +static void dma_idle_int_handler(struct snps_hdmirx_dev *hdmirx_dev,
> + bool *handled)
> +{
> + struct hdmirx_stream *stream = &hdmirx_dev->stream;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + struct v4l2_dv_timings timings = hdmirx_dev->timings;
> + struct v4l2_bt_timings *bt = &timings.bt;
> + struct vb2_v4l2_buffer *vb_done = NULL;
> +
> + if (!(stream->irq_stat) && !(stream->irq_stat & LINE_FLAG_INT_EN))
> + v4l2_dbg(1, debug, v4l2_dev,
> + "%s: last time have no line_flag_irq\n", __func__);
> +
> + if (stream->line_flag_int_cnt <= FILTER_FRAME_CNT)
> + goto DMA_IDLE_OUT;
> +
> + if (bt->interlaced != V4L2_DV_INTERLACED ||
> + !(stream->line_flag_int_cnt % 2)) {
> + if (stream->next_buf) {
> + if (stream->curr_buf)
> + vb_done = &stream->curr_buf->vb;
> +
> + if (vb_done) {
> + vb_done->vb2_buf.timestamp = ktime_get_ns();
> + vb_done->sequence = stream->frame_idx;
> + hdmirx_vb_done(stream, vb_done);
> + stream->frame_idx++;
> + if (stream->frame_idx == 30)
> + v4l2_info(v4l2_dev, "rcv frames\n");
> + }
> +
> + stream->curr_buf = NULL;
> + if (stream->next_buf) {
> + stream->curr_buf = stream->next_buf;
> + stream->next_buf = NULL;
> + }
> + } else {
> + v4l2_dbg(3, debug, v4l2_dev,
> + "%s: next_buf NULL, skip vb_done\n", __func__);
> + }
> + }
> +
> +DMA_IDLE_OUT:
> + *handled = true;
> +}
> +
> +static void line_flag_int_handler(struct snps_hdmirx_dev *hdmirx_dev,
> + bool *handled)
> +{
> + struct hdmirx_stream *stream = &hdmirx_dev->stream;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + struct v4l2_dv_timings timings = hdmirx_dev->timings;
> + struct v4l2_bt_timings *bt = &timings.bt;
> + u32 dma_cfg6;
> +
> + stream->line_flag_int_cnt++;
> + if (!(stream->irq_stat) && !(stream->irq_stat & HDMIRX_DMA_IDLE_INT))
> + v4l2_dbg(1, debug, v4l2_dev,
> + "%s: last have no dma_idle_irq\n", __func__);
> + dma_cfg6 = hdmirx_readl(hdmirx_dev, DMA_CONFIG6);
> + if (!(dma_cfg6 & HDMIRX_DMA_EN)) {
> + v4l2_dbg(2, debug, v4l2_dev, "%s: dma not on\n", __func__);
> + goto LINE_FLAG_OUT;
> + }
> +
> + if (stream->line_flag_int_cnt <= FILTER_FRAME_CNT)
> + goto LINE_FLAG_OUT;
> +
> + if (bt->interlaced != V4L2_DV_INTERLACED ||
> + !(stream->line_flag_int_cnt % 2)) {
> + if (!stream->next_buf) {
> + spin_lock(&stream->vbq_lock);
> + if (!list_empty(&stream->buf_head)) {
> + stream->next_buf = list_first_entry(&stream->buf_head,
> + struct hdmirx_buffer,
> + queue);
> + list_del(&stream->next_buf->queue);
> + } else {
> + stream->next_buf = NULL;
> + }
> + spin_unlock(&stream->vbq_lock);
> +
> + if (stream->next_buf) {
> + hdmirx_writel(hdmirx_dev, DMA_CONFIG2,
> + stream->next_buf->buff_addr[HDMIRX_PLANE_Y]);
> + hdmirx_writel(hdmirx_dev, DMA_CONFIG3,
> + stream->next_buf->buff_addr[HDMIRX_PLANE_CBCR]);
> + } else {
> + v4l2_dbg(3, debug, v4l2_dev,
> + "%s: no buffer is available\n", __func__);
> + }
> + }
> + } else {
> + v4l2_dbg(3, debug, v4l2_dev, "%s: interlace:%d, line_flag_int_cnt:%d\n",
> + __func__, bt->interlaced, stream->line_flag_int_cnt);
> + }
> +
> +LINE_FLAG_OUT:
> + *handled = true;
> +}
> +
> +static irqreturn_t hdmirx_dma_irq_handler(int irq, void *dev_id)
> +{
> + struct snps_hdmirx_dev *hdmirx_dev = dev_id;
> + struct hdmirx_stream *stream = &hdmirx_dev->stream;
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + u32 dma_stat1, dma_stat13;
> + bool handled = false;
> +
> + dma_stat1 = hdmirx_readl(hdmirx_dev, DMA_STATUS1);
> + dma_stat13 = hdmirx_readl(hdmirx_dev, DMA_STATUS13);
> + v4l2_dbg(3, debug, v4l2_dev, "dma_irq st1:%#x, st13:%d\n",
> + dma_stat1, dma_stat13);
> +
> + if (READ_ONCE(stream->stopping)) {
> + v4l2_dbg(1, debug, v4l2_dev, "%s: stop stream\n", __func__);
> + hdmirx_writel(hdmirx_dev, DMA_CONFIG5, 0xffffffff);
> + hdmirx_update_bits(hdmirx_dev, DMA_CONFIG4,
> + LINE_FLAG_INT_EN |
> + HDMIRX_DMA_IDLE_INT |
> + HDMIRX_LOCK_DISABLE_INT |
> + LAST_FRAME_AXI_UNFINISH_INT_EN |
> + FIFO_OVERFLOW_INT_EN |
> + FIFO_UNDERFLOW_INT_EN |
> + HDMIRX_AXI_ERROR_INT_EN, 0);
> + WRITE_ONCE(stream->stopping, false);
> + wake_up(&stream->wq_stopped);
> + return IRQ_HANDLED;
> + }
> +
> + if (dma_stat1 & HDMIRX_DMA_IDLE_INT)
> + dma_idle_int_handler(hdmirx_dev, &handled);
> +
> + if (dma_stat1 & LINE_FLAG_INT_EN)
> + line_flag_int_handler(hdmirx_dev, &handled);
> +
> + if (!handled)
> + v4l2_dbg(3, debug, v4l2_dev,
> + "%s: dma irq not handled, dma_stat1:%#x\n",
> + __func__, dma_stat1);
> +
> + stream->irq_stat = dma_stat1;
> + hdmirx_writel(hdmirx_dev, DMA_CONFIG5, 0xffffffff);
> +
> + return IRQ_HANDLED;
> +}
> +
> +static void hdmirx_plugin(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + struct arm_smccc_res res;
> + int ret;
> +
> + queue_delayed_work(system_unbound_wq,
> + &hdmirx_dev->delayed_work_heartbeat,
> + msecs_to_jiffies(10));
> + arm_smccc_smc(SIP_WDT_CFG, WDT_START, 0, 0, 0, 0, 0, 0, &res);
> + hdmirx_submodule_init(hdmirx_dev);
> + hdmirx_update_bits(hdmirx_dev, SCDC_CONFIG, POWERPROVIDED,
> + POWERPROVIDED);
> + hdmirx_hpd_ctrl(hdmirx_dev, true);
> + hdmirx_phy_config(hdmirx_dev);
> + ret = hdmirx_wait_lock_and_get_timing(hdmirx_dev);
> + if (ret) {
> + hdmirx_plugout(hdmirx_dev);
> + queue_delayed_work(system_unbound_wq,
> + &hdmirx_dev->delayed_work_hotplug,
> + msecs_to_jiffies(200));
> + return;
> + }
> + hdmirx_dma_config(hdmirx_dev);
> + hdmirx_interrupts_setup(hdmirx_dev, true);
> +}
> +
> +static void hdmirx_delayed_work_hotplug(struct work_struct *work)
> +{
> + struct snps_hdmirx_dev *hdmirx_dev;
> + bool plugin;
> +
> + hdmirx_dev = container_of(work, struct snps_hdmirx_dev,
> + delayed_work_hotplug.work);
> +
> + mutex_lock(&hdmirx_dev->work_lock);
> + hdmirx_dev->got_timing = false;
> + plugin = tx_5v_power_present(hdmirx_dev);
> + v4l2_ctrl_s_ctrl(hdmirx_dev->detect_tx_5v_ctrl, plugin);
> + v4l2_dbg(1, debug, &hdmirx_dev->v4l2_dev, "%s: plugin:%d\n",
> + __func__, plugin);
> +
> + if (plugin)
> + hdmirx_plugin(hdmirx_dev);
> + else
> + hdmirx_plugout(hdmirx_dev);
> +
> + mutex_unlock(&hdmirx_dev->work_lock);
> +}
> +
> +static void hdmirx_delayed_work_res_change(struct work_struct *work)
> +{
> + struct snps_hdmirx_dev *hdmirx_dev;
> + bool plugin;
> +
> + hdmirx_dev = container_of(work, struct snps_hdmirx_dev,
> + delayed_work_res_change.work);
> +
> + mutex_lock(&hdmirx_dev->work_lock);
> + plugin = tx_5v_power_present(hdmirx_dev);
> + v4l2_dbg(1, debug, &hdmirx_dev->v4l2_dev, "%s: plugin:%d\n",
> + __func__, plugin);
> + if (plugin) {
> + hdmirx_interrupts_setup(hdmirx_dev, false);
> + hdmirx_submodule_init(hdmirx_dev);
> + hdmirx_update_bits(hdmirx_dev, SCDC_CONFIG, POWERPROVIDED,
> + POWERPROVIDED);
> + hdmirx_hpd_ctrl(hdmirx_dev, true);
> + hdmirx_phy_config(hdmirx_dev);
> +
> + if (hdmirx_wait_lock_and_get_timing(hdmirx_dev)) {
> + hdmirx_plugout(hdmirx_dev);
> + queue_delayed_work(system_unbound_wq,
> + &hdmirx_dev->delayed_work_hotplug,
> + msecs_to_jiffies(200));
> + } else {
> + hdmirx_dma_config(hdmirx_dev);
> + hdmirx_interrupts_setup(hdmirx_dev, true);
> + }
> + }
> + mutex_unlock(&hdmirx_dev->work_lock);
> +}
> +
> +static void hdmirx_delayed_work_heartbeat(struct work_struct *work)
> +{
> + struct delayed_work *dwork = to_delayed_work(work);
> + struct snps_hdmirx_dev *hdmirx_dev = container_of(dwork,
> + struct snps_hdmirx_dev,
> + delayed_work_heartbeat);
> +
> + queue_work(system_highpri_wq, &hdmirx_dev->work_wdt_config);
> + queue_delayed_work(system_unbound_wq,
> + &hdmirx_dev->delayed_work_heartbeat, HZ);
> +}
> +
> +static void hdmirx_work_wdt_config(struct work_struct *work)
> +{
> + struct arm_smccc_res res;
> + struct snps_hdmirx_dev *hdmirx_dev = container_of(work,
> + struct snps_hdmirx_dev,
> + work_wdt_config);
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> +
> + arm_smccc_smc(SIP_WDT_CFG, WDT_PING, 0, 0, 0, 0, 0, 0, &res);
> + v4l2_dbg(3, debug, v4l2_dev, "hb\n");
> +}
> +
> +static irqreturn_t hdmirx_5v_det_irq_handler(int irq, void *dev_id)
> +{
> + struct snps_hdmirx_dev *hdmirx_dev = dev_id;
> + u32 val;
> +
> + val = gpiod_get_value(hdmirx_dev->detect_5v_gpio);
> + v4l2_dbg(3, debug, &hdmirx_dev->v4l2_dev, "%s: 5v:%d\n", __func__, val);
> +
> + queue_delayed_work(system_unbound_wq,
> + &hdmirx_dev->delayed_work_hotplug,
> + msecs_to_jiffies(10));
> +
> + return IRQ_HANDLED;
> +}
> +
> +static const struct hdmirx_cec_ops hdmirx_cec_ops = {
> + .write = hdmirx_writel,
> + .read = hdmirx_readl,
> +};
> +
> +static int hdmirx_parse_dt(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + struct device *dev = hdmirx_dev->dev;
> + int ret;
> +
> + hdmirx_dev->num_clks = devm_clk_bulk_get_all(dev, &hdmirx_dev->clks);
> + if (hdmirx_dev->num_clks < 1)
> + return -ENODEV;
> +
> + hdmirx_dev->resets[HDMIRX_RST_A].id = "axi";
> + hdmirx_dev->resets[HDMIRX_RST_P].id = "apb";
> + hdmirx_dev->resets[HDMIRX_RST_REF].id = "ref";
> + hdmirx_dev->resets[HDMIRX_RST_BIU].id = "biu";
> +
> + ret = devm_reset_control_bulk_get_exclusive(dev, HDMIRX_NUM_RST,
> + hdmirx_dev->resets);
> + if (ret < 0) {
> + dev_err(dev, "failed to get reset controls\n");
> + return ret;
> + }
> +
> + hdmirx_dev->detect_5v_gpio =
> + devm_gpiod_get_optional(dev, "hpd", GPIOD_IN);
> +
> + if (IS_ERR(hdmirx_dev->detect_5v_gpio)) {
> + dev_err(dev, "failed to get hdmirx hot plug detection gpio\n");
> + return PTR_ERR(hdmirx_dev->detect_5v_gpio);
> + }
> +
> + hdmirx_dev->grf = syscon_regmap_lookup_by_phandle(dev->of_node,
> + "rockchip,grf");
> + if (IS_ERR(hdmirx_dev->grf)) {
> + dev_err(dev, "failed to get rockchip,grf\n");
> + return PTR_ERR(hdmirx_dev->grf);
> + }
> +
> + hdmirx_dev->vo1_grf = syscon_regmap_lookup_by_phandle(dev->of_node,
> + "rockchip,vo1-grf");
> + if (IS_ERR(hdmirx_dev->vo1_grf)) {
> + dev_err(dev, "failed to get rockchip,vo1-grf\n");
> + return PTR_ERR(hdmirx_dev->vo1_grf);
> + }
> +
> + hdmirx_dev->hpd_trigger_level = !device_property_read_bool(dev, "hpd-is-active-low");
> +
> + ret = of_reserved_mem_device_init(dev);
> + if (ret)
> + dev_warn(dev, "No reserved memory for HDMIRX, use default CMA\n");
> +
> + return 0;
> +}
> +
> +static void hdmirx_disable_all_interrupts(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + hdmirx_writel(hdmirx_dev, MAINUNIT_0_INT_MASK_N, 0);
> + hdmirx_writel(hdmirx_dev, MAINUNIT_1_INT_MASK_N, 0);
> + hdmirx_writel(hdmirx_dev, MAINUNIT_2_INT_MASK_N, 0);
> + hdmirx_writel(hdmirx_dev, AVPUNIT_0_INT_MASK_N, 0);
> + hdmirx_writel(hdmirx_dev, AVPUNIT_1_INT_MASK_N, 0);
> + hdmirx_writel(hdmirx_dev, PKT_0_INT_MASK_N, 0);
> + hdmirx_writel(hdmirx_dev, PKT_1_INT_MASK_N, 0);
> + hdmirx_writel(hdmirx_dev, PKT_2_INT_MASK_N, 0);
> + hdmirx_writel(hdmirx_dev, SCDC_INT_MASK_N, 0);
> + hdmirx_writel(hdmirx_dev, CEC_INT_MASK_N, 0);
> +
> + hdmirx_clear_interrupt(hdmirx_dev, MAINUNIT_0_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, MAINUNIT_1_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, MAINUNIT_2_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, AVPUNIT_0_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, AVPUNIT_1_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, PKT_0_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, PKT_1_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, PKT_2_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, SCDC_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, HDCP_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, HDCP_1_INT_CLEAR, 0xffffffff);
> + hdmirx_clear_interrupt(hdmirx_dev, CEC_INT_CLEAR, 0xffffffff);
> +}
> +
> +static int hdmirx_init(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + hdmirx_update_bits(hdmirx_dev, PHY_CONFIG, PHY_RESET | PHY_PDDQ, 0);
> +
> + regmap_write(hdmirx_dev->vo1_grf, VO1_GRF_VO1_CON2,
> + (HDMIRX_SDAIN_MSK | HDMIRX_SCLIN_MSK) |
> + ((HDMIRX_SDAIN_MSK | HDMIRX_SCLIN_MSK) << 16));
> + /*
> + * Some interrupts are enabled by default, so we disable
> + * all interrupts and clear interrupts status first.
> + */
> + hdmirx_disable_all_interrupts(hdmirx_dev);
> +
> + return 0;
> +}
> +
> +static void hdmirx_load_default_edid(struct snps_hdmirx_dev *hdmirx_dev)
> +{
> + int ret;
> + struct v4l2_edid def_edid;
> +
> + hdmirx_hpd_ctrl(hdmirx_dev, false);
> +
> + /* disable hpd and write edid */
> + def_edid.pad = 0;
> + def_edid.start_block = 0;
> + def_edid.blocks = EDID_NUM_BLOCKS_MAX;
> +
> + if (IS_ENABLED(CONFIG_HDMIRX_LOAD_DEFAULT_EDID))
> + def_edid.edid = edid_init_data_340M;
> + else
> + def_edid.edid = hdmirx_dev->edid;
> +
> + ret = hdmirx_write_edid(hdmirx_dev, &def_edid, true);
> + if (ret)
> + dev_err(hdmirx_dev->dev, "%s: write edid failed\n", __func__);
> +}
> +
> +static void hdmirx_disable_irq(struct device *dev)
> +{
> + struct snps_hdmirx_dev *hdmirx_dev = dev_get_drvdata(dev);
> + struct arm_smccc_res res;
> +
> + disable_irq(hdmirx_dev->hdmi_irq);
> + disable_irq(hdmirx_dev->dma_irq);
> + disable_irq(hdmirx_dev->det_irq);
> +
> + arm_smccc_smc(RK_SIP_FIQ_CTRL, RK_SIP_FIQ_CTRL_FIQ_DIS,
> + RK_IRQ_HDMIRX_HDMI, 0, 0, 0, 0, 0, &res);
> +
> + cancel_delayed_work_sync(&hdmirx_dev->delayed_work_hotplug);
> + cancel_delayed_work_sync(&hdmirx_dev->delayed_work_res_change);
> + cancel_delayed_work_sync(&hdmirx_dev->delayed_work_heartbeat);
> + flush_work(&hdmirx_dev->work_wdt_config);
> +
> + arm_smccc_smc(SIP_WDT_CFG, WDT_STOP, 0, 0, 0, 0, 0, 0, &res);
> +}
> +
> +static int hdmirx_disable(struct device *dev)
> +{
> + struct snps_hdmirx_dev *hdmirx_dev = dev_get_drvdata(dev);
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> +
> + clk_bulk_disable_unprepare(hdmirx_dev->num_clks, hdmirx_dev->clks);
> +
> + v4l2_dbg(2, debug, v4l2_dev, "%s: suspend\n", __func__);
> +
> + return pinctrl_pm_select_sleep_state(dev);
> +}
> +
> +static void hdmirx_enable_irq(struct device *dev)
> +{
> + struct snps_hdmirx_dev *hdmirx_dev = dev_get_drvdata(dev);
> + struct arm_smccc_res res;
> +
> + enable_irq(hdmirx_dev->hdmi_irq);
> + enable_irq(hdmirx_dev->dma_irq);
> + enable_irq(hdmirx_dev->det_irq);
> +
> + arm_smccc_smc(RK_SIP_FIQ_CTRL, RK_SIP_FIQ_CTRL_FIQ_EN,
> + RK_IRQ_HDMIRX_HDMI, 0, 0, 0, 0, 0, &res);
> +
> + queue_delayed_work(system_unbound_wq, &hdmirx_dev->delayed_work_hotplug,
> + msecs_to_jiffies(20));
> +}
> +
> +static int hdmirx_enable(struct device *dev)
> +{
> + struct snps_hdmirx_dev *hdmirx_dev = dev_get_drvdata(dev);
> + struct v4l2_device *v4l2_dev = &hdmirx_dev->v4l2_dev;
> + int ret;
> +
> + v4l2_dbg(2, debug, v4l2_dev, "%s: resume\n", __func__);
> + ret = pinctrl_pm_select_default_state(dev);
> + if (ret < 0)
> + return ret;
> +
> + ret = clk_bulk_prepare_enable(hdmirx_dev->num_clks, hdmirx_dev->clks);
> + if (ret) {
> + dev_err(dev, "failed to enable hdmirx bulk clks: %d\n", ret);
> + return ret;
> + }
> +
> + reset_control_bulk_assert(HDMIRX_NUM_RST, hdmirx_dev->resets);
> + usleep_range(150, 160);
> + reset_control_bulk_deassert(HDMIRX_NUM_RST, hdmirx_dev->resets);
> + usleep_range(150, 160);
> +
> + return 0;
> +}
> +
> +static int hdmirx_suspend(struct device *dev)
> +{
> + hdmirx_disable_irq(dev);
> +
> + return hdmirx_disable(dev);
> +}
> +
> +static int hdmirx_resume(struct device *dev)
> +{
> + int ret = hdmirx_enable(dev);
> +
> + if (ret)
> + return ret;
> +
> + hdmirx_enable_irq(dev);
> +
> + return 0;
> +}
> +
> +static const struct dev_pm_ops snps_hdmirx_pm_ops = {
> + SET_SYSTEM_SLEEP_PM_OPS(hdmirx_suspend, hdmirx_resume)
> +};
> +
> +static int hdmirx_setup_irq(struct snps_hdmirx_dev *hdmirx_dev,
> + struct platform_device *pdev)
> +{
> + struct device *dev = hdmirx_dev->dev;
> + int ret, irq;
> +
> + irq = platform_get_irq_byname(pdev, "hdmi");
> + if (irq < 0) {
> + dev_err_probe(dev, irq, "failed to get hdmi irq\n");
> + return irq;
> + }
> +
> + irq_set_status_flags(irq, IRQ_NOAUTOEN);
> +
> + hdmirx_dev->hdmi_irq = irq;
> + ret = devm_request_irq(dev, irq, hdmirx_hdmi_irq_handler, 0,
> + "rk_hdmirx-hdmi", hdmirx_dev);
> + if (ret) {
> + dev_err_probe(dev, ret, "failed to request hdmi irq\n");
> + return ret;
> + }
> +
> + irq = platform_get_irq_byname(pdev, "dma");
> + if (irq < 0) {
> + dev_err_probe(dev, irq, "failed to get dma irq\n");
> + return irq;
> + }
> +
> + irq_set_status_flags(irq, IRQ_NOAUTOEN);
> +
> + hdmirx_dev->dma_irq = irq;
> + ret = devm_request_threaded_irq(dev, irq, NULL, hdmirx_dma_irq_handler,
> + IRQF_ONESHOT, "rk_hdmirx-dma",
> + hdmirx_dev);
> + if (ret) {
> + dev_err_probe(dev, ret, "failed to request dma irq\n");
> + return ret;
> + }
> +
> + irq = gpiod_to_irq(hdmirx_dev->detect_5v_gpio);
> + if (irq < 0) {
> + dev_err_probe(dev, irq, "failed to get hdmirx-5v irq\n");
> + return irq;
> + }
> +
> + irq_set_status_flags(irq, IRQ_NOAUTOEN);
> +
> + hdmirx_dev->det_irq = irq;
> + ret = devm_request_irq(dev, irq, hdmirx_5v_det_irq_handler,
> + IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
> + "rk_hdmirx-5v", hdmirx_dev);
> + if (ret) {
> + dev_err_probe(dev, ret, "failed to request hdmirx-5v irq\n");
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static int hdmirx_register_cec(struct snps_hdmirx_dev *hdmirx_dev,
> + struct platform_device *pdev)
> +{
> + struct device *dev = hdmirx_dev->dev;
> + struct hdmirx_cec_data cec_data;
> + int irq;
> +
> + irq = platform_get_irq_byname(pdev, "cec");
> + if (irq < 0) {
> + dev_err_probe(dev, irq, "failed to get cec irq\n");
> + return irq;
> + }
> +
> + hdmirx_dev->cec_notifier = cec_notifier_conn_register(dev, NULL, NULL);
> + if (!hdmirx_dev->cec_notifier)
> + return -EINVAL;
> +
> + cec_data.hdmirx = hdmirx_dev;
> + cec_data.dev = hdmirx_dev->dev;
> + cec_data.ops = &hdmirx_cec_ops;
> + cec_data.irq = irq;
> +
> + hdmirx_dev->cec = snps_hdmirx_cec_register(&cec_data);
> + if (!hdmirx_dev->cec) {
> + cec_notifier_conn_unregister(hdmirx_dev->cec_notifier);
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +static int hdmirx_probe(struct platform_device *pdev)
> +{
> + struct snps_hdmirx_dev *hdmirx_dev;
> + struct device *dev = &pdev->dev;
> + struct v4l2_ctrl_handler *hdl;
> + struct hdmirx_stream *stream;
> + struct v4l2_device *v4l2_dev;
> + int ret;
> +
> + hdmirx_dev = devm_kzalloc(dev, sizeof(*hdmirx_dev), GFP_KERNEL);
> + if (!hdmirx_dev)
> + return -ENOMEM;
> +
> + ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
> + if (ret)
> + return ret;
> +
> + hdmirx_dev->dev = dev;
> + dev_set_drvdata(dev, hdmirx_dev);
> +
> + ret = hdmirx_parse_dt(hdmirx_dev);
> + if (ret)
> + return ret;
> +
> + ret = hdmirx_setup_irq(hdmirx_dev, pdev);
> + if (ret)
> + return ret;
> +
> + hdmirx_dev->regs = devm_platform_ioremap_resource(pdev, 0);
> + if (IS_ERR(hdmirx_dev->regs))
> + return dev_err_probe(dev, PTR_ERR(hdmirx_dev->regs),
> + "failed to remap regs resource\n");
> +
> + mutex_init(&hdmirx_dev->stream_lock);
> + mutex_init(&hdmirx_dev->work_lock);
> + spin_lock_init(&hdmirx_dev->rst_lock);
> +
> + init_completion(&hdmirx_dev->cr_write_done);
> + init_completion(&hdmirx_dev->timer_base_lock);
> + init_completion(&hdmirx_dev->avi_pkt_rcv);
> +
> + INIT_WORK(&hdmirx_dev->work_wdt_config, hdmirx_work_wdt_config);
> + INIT_DELAYED_WORK(&hdmirx_dev->delayed_work_hotplug,
> + hdmirx_delayed_work_hotplug);
> + INIT_DELAYED_WORK(&hdmirx_dev->delayed_work_res_change,
> + hdmirx_delayed_work_res_change);
> + INIT_DELAYED_WORK(&hdmirx_dev->delayed_work_heartbeat,
> + hdmirx_delayed_work_heartbeat);
> +
> + hdmirx_dev->cur_fmt_fourcc = V4L2_PIX_FMT_BGR24;
> + hdmirx_dev->timings = cea640x480;
> +
> + hdmirx_enable(dev);
> + hdmirx_init(hdmirx_dev);
> +
> + v4l2_dev = &hdmirx_dev->v4l2_dev;
> + strscpy(v4l2_dev->name, dev_name(dev), sizeof(v4l2_dev->name));
> +
> + hdl = &hdmirx_dev->hdl;
> + v4l2_ctrl_handler_init(hdl, 1);
> +
> + hdmirx_dev->detect_tx_5v_ctrl = v4l2_ctrl_new_std(hdl, NULL,
> + V4L2_CID_DV_RX_POWER_PRESENT,
> + 0, 1, 0, 0);
> +
> + hdmirx_dev->rgb_range = v4l2_ctrl_new_std_menu(hdl, 0,
> + V4L2_CID_DV_RX_RGB_RANGE,
> + V4L2_DV_RGB_RANGE_FULL, 0,
> + V4L2_DV_RGB_RANGE_AUTO);
> +
> + hdmirx_dev->rgb_range->flags |= V4L2_CTRL_FLAG_READ_ONLY;
> +
> + if (hdl->error) {
> + dev_err(dev, "v4l2 ctrl handler init failed\n");
> + ret = hdl->error;
> + goto err_pm;
> + }
> + hdmirx_dev->v4l2_dev.ctrl_handler = hdl;
> +
> + ret = v4l2_device_register(dev, &hdmirx_dev->v4l2_dev);
> + if (ret < 0) {
> + dev_err(dev, "register v4l2 device failed\n");
> + goto err_hdl;
> + }
> +
> + stream = &hdmirx_dev->stream;
> + stream->hdmirx_dev = hdmirx_dev;
> + ret = hdmirx_register_stream_vdev(stream);
> + if (ret < 0) {
> + dev_err(dev, "register video device failed\n");
> + goto err_unreg_v4l2_dev;
> + }
> +
> + ret = hdmirx_register_cec(hdmirx_dev, pdev);
> + if (ret)
> + goto err_unreg_video_dev;
> +
> + hdmirx_load_default_edid(hdmirx_dev);
> +
> + hdmirx_enable_irq(dev);
> +
> + return 0;
> +
> +err_unreg_video_dev:
> + video_unregister_device(&hdmirx_dev->stream.vdev);
> +err_unreg_v4l2_dev:
> + v4l2_device_unregister(&hdmirx_dev->v4l2_dev);
> +err_hdl:
> + v4l2_ctrl_handler_free(&hdmirx_dev->hdl);
> +err_pm:
> + hdmirx_disable(dev);
> +
> + return ret;
> +}
> +
> +static void hdmirx_remove(struct platform_device *pdev)
> +{
> + struct device *dev = &pdev->dev;
> + struct snps_hdmirx_dev *hdmirx_dev = dev_get_drvdata(dev);
> +
> + snps_hdmirx_cec_unregister(hdmirx_dev->cec);
> + cec_notifier_conn_unregister(hdmirx_dev->cec_notifier);
> +
> + hdmirx_disable_irq(dev);
> +
> + video_unregister_device(&hdmirx_dev->stream.vdev);
> + v4l2_ctrl_handler_free(&hdmirx_dev->hdl);
> + v4l2_device_unregister(&hdmirx_dev->v4l2_dev);
> +
> + hdmirx_disable(dev);
> +
> + reset_control_bulk_assert(HDMIRX_NUM_RST, hdmirx_dev->resets);
> +
> + of_reserved_mem_device_release(dev);
> +}
> +
> +static const struct of_device_id hdmirx_id[] = {
> + { .compatible = "rockchip,rk3588-hdmirx-ctrler" },
> + { },
> +};
> +MODULE_DEVICE_TABLE(of, hdmirx_id);
>
>
According to the platform_driver struct, they like the `remove_new` over remove.
When I was compiling for Armbian, I was getting a type mismatch that prevented compililng
See here: https://github.com/torvalds/linux/blob/933069701c1b507825b514317d4edd5d3fd9d417/include/linux/platform_device.h#L236
>
> +
> +static struct platform_driver hdmirx_driver = {
> + .probe = hdmirx_probe,
> + .remove = hdmirx_remove,
> + .driver = {
> + .name = "snps_hdmirx",
> + .of_match_table = hdmirx_id,
> + .pm = &snps_hdmirx_pm_ops,
> + }
> +};
> +module_platform_driver(hdmirx_driver);
> +
> +MODULE_DESCRIPTION("Rockchip HDMI Receiver Driver");
> +MODULE_AUTHOR("Dingxian Wen <shawn.wen@...k-chips.com>");
> +MODULE_AUTHOR("Shreeya Patel <shreeya.patel@...labora.com>");
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.h b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.h
> new file mode 100644
> index 000000000000..220ab99ca611
> --- /dev/null
> +++ b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.h
> @@ -0,0 +1,394 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (c) 2021 Rockchip Electronics Co. Ltd.
> + *
> + * Author: Dingxian Wen <shawn.wen@...k-chips.com>
> + */
> +
> +#ifndef DW_HDMIRX_H
> +#define DW_HDMIRX_H
> +
> +#include <linux/bitops.h>
> +
> +#define UPDATE(x, h, l) (((x) << (l)) & GENMASK((h), (l)))
> +#define HIWORD_UPDATE(v, h, l) (((v) << (l)) | (GENMASK((h), (l)) << 16))
> +
> +/* SYS_GRF */
> +#define SYS_GRF_SOC_CON1 0x0304
> +#define HDMIRXPHY_SRAM_EXT_LD_DONE BIT(1)
> +#define HDMIRXPHY_SRAM_BYPASS BIT(0)
> +#define SYS_GRF_SOC_STATUS1 0x0384
> +#define HDMIRXPHY_SRAM_INIT_DONE BIT(10)
> +#define SYS_GRF_CHIP_ID 0x0600
> +
> +/* VO1_GRF */
> +#define VO1_GRF_VO1_CON2 0x0008
> +#define HDMIRX_SDAIN_MSK BIT(2)
> +#define HDMIRX_SCLIN_MSK BIT(1)
> +
> +/* HDMIRX PHY */
> +#define SUP_DIG_ANA_CREGS_SUP_ANA_NC 0x004f
> +
> +#define LANE0_DIG_ASIC_RX_OVRD_OUT_0 0x100f
> +#define LANE1_DIG_ASIC_RX_OVRD_OUT_0 0x110f
> +#define LANE2_DIG_ASIC_RX_OVRD_OUT_0 0x120f
> +#define LANE3_DIG_ASIC_RX_OVRD_OUT_0 0x130f
> +#define ASIC_ACK_OVRD_EN BIT(1)
> +#define ASIC_ACK BIT(0)
> +
> +#define LANE0_DIG_RX_VCOCAL_RX_VCO_CAL_CTRL_2 0x104a
> +#define LANE1_DIG_RX_VCOCAL_RX_VCO_CAL_CTRL_2 0x114a
> +#define LANE2_DIG_RX_VCOCAL_RX_VCO_CAL_CTRL_2 0x124a
> +#define LANE3_DIG_RX_VCOCAL_RX_VCO_CAL_CTRL_2 0x134a
> +#define FREQ_TUNE_START_VAL_MASK GENMASK(9, 0)
> +#define FREQ_TUNE_START_VAL(x) UPDATE(x, 9, 0)
> +
> +#define HDMIPCS_DIG_CTRL_PATH_MAIN_FSM_FSM_CONFIG 0x20c4
> +#define HDMIPCS_DIG_CTRL_PATH_MAIN_FSM_ADAPT_REF_FOM 0x20c7
> +#define HDMIPCS_DIG_CTRL_PATH_MAIN_FSM_RATE_CALC_HDMI14_CDR_SETTING_3_REG 0x20e9
> +#define CDR_SETTING_BOUNDARY_3_DEFAULT 0x52da
> +#define HDMIPCS_DIG_CTRL_PATH_MAIN_FSM_RATE_CALC_HDMI14_CDR_SETTING_4_REG 0x20ea
> +#define CDR_SETTING_BOUNDARY_4_DEFAULT 0x43cd
> +#define HDMIPCS_DIG_CTRL_PATH_MAIN_FSM_RATE_CALC_HDMI14_CDR_SETTING_5_REG 0x20eb
> +#define CDR_SETTING_BOUNDARY_5_DEFAULT 0x35b3
> +#define HDMIPCS_DIG_CTRL_PATH_MAIN_FSM_RATE_CALC_HDMI14_CDR_SETTING_6_REG 0x20fb
> +#define CDR_SETTING_BOUNDARY_6_DEFAULT 0x2799
> +#define HDMIPCS_DIG_CTRL_PATH_MAIN_FSM_RATE_CALC_HDMI14_CDR_SETTING_7_REG 0x20fc
> +#define CDR_SETTING_BOUNDARY_7_DEFAULT 0x1b65
> +
> +#define RAWLANE0_DIG_PCS_XF_RX_OVRD_OUT 0x300e
> +#define RAWLANE1_DIG_PCS_XF_RX_OVRD_OUT 0x310e
> +#define RAWLANE2_DIG_PCS_XF_RX_OVRD_OUT 0x320e
> +#define RAWLANE3_DIG_PCS_XF_RX_OVRD_OUT 0x330e
> +#define PCS_ACK_WRITE_SELECT BIT(14)
> +#define PCS_EN_CTL BIT(1)
> +#define PCS_ACK BIT(0)
> +
> +#define RAWLANE0_DIG_AON_FAST_FLAGS 0x305c
> +#define RAWLANE1_DIG_AON_FAST_FLAGS 0x315c
> +#define RAWLANE2_DIG_AON_FAST_FLAGS 0x325c
> +#define RAWLANE3_DIG_AON_FAST_FLAGS 0x335c
> +
> +/* HDMIRX Ctrler */
> +#define GLOBAL_SWRESET_REQUEST 0x0020
> +#define DATAPATH_SWRESETREQ BIT(12)
> +#define GLOBAL_SWENABLE 0x0024
> +#define PHYCTRL_ENABLE BIT(21)
> +#define CEC_ENABLE BIT(16)
> +#define TMDS_ENABLE BIT(13)
> +#define DATAPATH_ENABLE BIT(12)
> +#define PKTFIFO_ENABLE BIT(11)
> +#define AVPUNIT_ENABLE BIT(8)
> +#define MAIN_ENABLE BIT(0)
> +#define GLOBAL_TIMER_REF_BASE 0x0028
> +#define CORE_CONFIG 0x0050
> +#define CMU_CONFIG0 0x0060
> +#define TMDSQPCLK_STABLE_FREQ_MARGIN_MASK GENMASK(30, 16)
> +#define TMDSQPCLK_STABLE_FREQ_MARGIN(x) UPDATE(x, 30, 16)
> +#define AUDCLK_STABLE_FREQ_MARGIN_MASK GENMASK(11, 9)
> +#define AUDCLK_STABLE_FREQ_MARGIN(x) UPDATE(x, 11, 9)
> +#define CMU_STATUS 0x007c
> +#define TMDSQPCLK_LOCKED_ST BIT(4)
> +#define CMU_TMDSQPCLK_FREQ 0x0084
> +#define PHY_CONFIG 0x00c0
> +#define LDO_AFE_PROG_MASK GENMASK(24, 23)
> +#define LDO_AFE_PROG(x) UPDATE(x, 24, 23)
> +#define LDO_PWRDN BIT(21)
> +#define TMDS_CLOCK_RATIO BIT(16)
> +#define RXDATA_WIDTH BIT(15)
> +#define REFFREQ_SEL_MASK GENMASK(11, 9)
> +#define REFFREQ_SEL(x) UPDATE(x, 11, 9)
> +#define HDMI_DISABLE BIT(8)
> +#define PHY_PDDQ BIT(1)
> +#define PHY_RESET BIT(0)
> +#define PHY_STATUS 0x00c8
> +#define HDMI_DISABLE_ACK BIT(1)
> +#define PDDQ_ACK BIT(0)
> +#define PHYCREG_CONFIG0 0x00e0
> +#define PHYCREG_CR_PARA_SELECTION_MODE_MASK GENMASK(1, 0)
> +#define PHYCREG_CR_PARA_SELECTION_MODE(x) UPDATE(x, 1, 0)
> +#define PHYCREG_CONFIG1 0x00e4
> +#define PHYCREG_CONFIG2 0x00e8
> +#define PHYCREG_CONFIG3 0x00ec
> +#define PHYCREG_CONTROL 0x00f0
> +#define PHYCREG_CR_PARA_WRITE_P BIT(1)
> +#define PHYCREG_CR_PARA_READ_P BIT(0)
> +#define PHYCREG_STATUS 0x00f4
> +
> +#define MAINUNIT_STATUS 0x0150
> +#define TMDSVALID_STABLE_ST BIT(1)
> +#define DESCRAND_EN_CONTROL 0x0210
> +#define SCRAMB_EN_SEL_QST_MASK GENMASK(1, 0)
> +#define SCRAMB_EN_SEL_QST(x) UPDATE(x, 1, 0)
> +#define DESCRAND_SYNC_CONTROL 0x0214
> +#define RECOVER_UNSYNC_STREAM_QST BIT(0)
> +#define DESCRAND_SYNC_SEQ_CONFIG 0x022c
> +#define DESCRAND_SYNC_SEQ_ERR_CNT_EN BIT(0)
> +#define DESCRAND_SYNC_SEQ_STATUS 0x0234
> +#define DEFRAMER_CONFIG0 0x0270
> +#define VS_CNT_THR_QST_MASK GENMASK(27, 20)
> +#define VS_CNT_THR_QST(x) UPDATE(x, 27, 20)
> +#define HS_POL_QST_MASK GENMASK(19, 18)
> +#define HS_POL_QST(x) UPDATE(x, 19, 18)
> +#define VS_POL_QST_MASK GENMASK(17, 16)
> +#define VS_POL_QST(x) UPDATE(x, 17, 16)
> +#define VS_REMAPFILTER_EN_QST BIT(8)
> +#define VS_FILTER_ORDER_QST_MASK GENMASK(1, 0)
> +#define VS_FILTER_ORDER_QST(x) UPDATE(x, 1, 0)
> +#define DEFRAMER_VSYNC_CNT_CLEAR 0x0278
> +#define VSYNC_CNT_CLR_P BIT(0)
> +#define DEFRAMER_STATUS 0x027c
> +#define OPMODE_STS_MASK GENMASK(6, 4)
> +#define I2C_SLAVE_CONFIG1 0x0164
> +#define I2C_SDA_OUT_HOLD_VALUE_QST_MASK GENMASK(15, 8)
> +#define I2C_SDA_OUT_HOLD_VALUE_QST(x) UPDATE(x, 15, 8)
> +#define I2C_SDA_IN_HOLD_VALUE_QST_MASK GENMASK(7, 0)
> +#define I2C_SDA_IN_HOLD_VALUE_QST(x) UPDATE(x, 7, 0)
> +#define OPMODE_STS_MASK GENMASK(6, 4)
> +#define REPEATER_QST BIT(28)
> +#define FASTREAUTH_QST BIT(27)
> +#define FEATURES_1DOT1_QST BIT(26)
> +#define FASTI2C_QST BIT(25)
> +#define EESS_CTL_THR_QST_MASK GENMASK(19, 16)
> +#define EESS_CTL_THR_QST(x) UPDATE(x, 19, 16)
> +#define OESS_CTL3_THR_QST_MASK GENMASK(11, 8)
> +#define OESS_CTL3_THR_QST(x) UPDATE(x, 11, 8)
> +#define EESS_OESS_SEL_QST_MASK GENMASK(5, 4)
> +#define EESS_OESS_SEL_QST(x) UPDATE(x, 5, 4)
> +#define KEY_DECRYPT_EN_QST BIT(0)
> +#define KEY_DECRYPT_SEED_QST_MASK GENMASK(15, 0)
> +#define KEY_DECRYPT_SEED_QST(x) UPDATE(x, 15, 0)
> +#define HDCP_INT_CLEAR 0x50d8
> +#define HDCP_1_INT_CLEAR 0x50e8
> +#define HDCP2_CONFIG 0x02f0
> +#define HDCP2_SWITCH_OVR_VALUE BIT(2)
> +#define HDCP2_SWITCH_OVR_EN BIT(1)
> +
> +#define VIDEO_CONFIG2 0x042c
> +#define VPROC_VSYNC_POL_OVR_VALUE BIT(19)
> +#define VPROC_VSYNC_POL_OVR_EN BIT(18)
> +#define VPROC_HSYNC_POL_OVR_VALUE BIT(17)
> +#define VPROC_HSYNC_POL_OVR_EN BIT(16)
> +#define VPROC_FMT_OVR_VALUE_MASK GENMASK(6, 4)
> +#define VPROC_FMT_OVR_VALUE(x) UPDATE(x, 6, 4)
> +#define VPROC_FMT_OVR_EN BIT(0)
> +
> +#define AFIFO_FILL_RESTART BIT(0)
> +#define AFIFO_INIT_P BIT(0)
> +#define AFIFO_THR_LOW_QST_MASK GENMASK(25, 16)
> +#define AFIFO_THR_LOW_QST(x) UPDATE(x, 25, 16)
> +#define AFIFO_THR_HIGH_QST_MASK GENMASK(9, 0)
> +#define AFIFO_THR_HIGH_QST(x) UPDATE(x, 9, 0)
> +#define AFIFO_THR_MUTE_LOW_QST_MASK GENMASK(25, 16)
> +#define AFIFO_THR_MUTE_LOW_QST(x) UPDATE(x, 25, 16)
> +#define AFIFO_THR_MUTE_HIGH_QST_MASK GENMASK(9, 0)
> +#define AFIFO_THR_MUTE_HIGH_QST(x) UPDATE(x, 9, 0)
> +
> +#define AFIFO_UNDERFLOW_ST BIT(25)
> +#define AFIFO_OVERFLOW_ST BIT(24)
> +
> +#define SPEAKER_ALLOC_OVR_EN BIT(16)
> +#define I2S_BPCUV_EN BIT(4)
> +#define SPDIF_EN BIT(2)
> +#define I2S_EN BIT(1)
> +#define AFIFO_THR_PASS_DEMUTEMASK_N BIT(24)
> +#define AVMUTE_DEMUTEMASK_N BIT(16)
> +#define AFIFO_THR_MUTE_LOW_MUTEMASK_N BIT(9)
> +#define AFIFO_THR_MUTE_HIGH_MUTEMASK_N BIT(8)
> +#define AVMUTE_MUTEMASK_N BIT(0)
> +#define SCDC_CONFIG 0x0580
> +#define HPDLOW BIT(1)
> +#define POWERPROVIDED BIT(0)
> +#define SCDC_REGBANK_STATUS1 0x058c
> +#define SCDC_TMDSBITCLKRATIO BIT(1)
> +#define SCDC_REGBANK_STATUS3 0x0594
> +#define SCDC_REGBANK_CONFIG0 0x05c0
> +#define SCDC_SINKVERSION_QST_MASK GENMASK(7, 0)
> +#define SCDC_SINKVERSION_QST(x) UPDATE(x, 7, 0)
> +#define AGEN_LAYOUT BIT(4)
> +#define AGEN_SPEAKER_ALLOC GENMASK(15, 8)
> +
> +#define CED_CONFIG 0x0760
> +#define CED_VIDDATACHECKEN_QST BIT(27)
> +#define CED_DATAISCHECKEN_QST BIT(26)
> +#define CED_GBCHECKEN_QST BIT(25)
> +#define CED_CTRLCHECKEN_QST BIT(24)
> +#define CED_CHLOCKMAXER_QST_MASK GENMASK(14, 0)
> +#define CED_CHLOCKMAXER_QST(x) UPDATE(x, 14, 0)
> +#define CED_DYN_CONFIG 0x0768
> +#define CED_DYN_CONTROL 0x076c
> +#define PKTEX_BCH_ERRFILT_CONFIG 0x07c4
> +#define PKTEX_CHKSUM_ERRFILT_CONFIG 0x07c8
> +
> +#define PKTDEC_ACR_PH2_1 0x1100
> +#define PKTDEC_ACR_PB3_0 0x1104
> +#define PKTDEC_ACR_PB7_4 0x1108
> +#define PKTDEC_AVIIF_PH2_1 0x1200
> +#define PKTDEC_AVIIF_PB3_0 0x1204
> +#define PKTDEC_AVIIF_PB7_4 0x1208
> +#define VIC_VAL_MASK GENMASK(6, 0)
> +#define PKTDEC_AVIIF_PB11_8 0x120c
> +#define PKTDEC_AVIIF_PB15_12 0x1210
> +#define PKTDEC_AVIIF_PB19_16 0x1214
> +#define PKTDEC_AVIIF_PB23_20 0x1218
> +#define PKTDEC_AVIIF_PB27_24 0x121c
> +
> +#define PKTFIFO_CONFIG 0x1500
> +#define PKTFIFO_STORE_FILT_CONFIG 0x1504
> +#define PKTFIFO_THR_CONFIG0 0x1508
> +#define PKTFIFO_THR_CONFIG1 0x150c
> +#define PKTFIFO_CONTROL 0x1510
> +
> +#define VMON_STATUS1 0x1580
> +#define VMON_STATUS2 0x1584
> +#define VMON_STATUS3 0x1588
> +#define VMON_STATUS4 0x158c
> +#define VMON_STATUS5 0x1590
> +#define VMON_STATUS6 0x1594
> +#define VMON_STATUS7 0x1598
> +#define VMON_ILACE_DETECT BIT(4)
> +
> +#define CEC_TX_CONTROL 0x2000
> +#define CEC_STATUS 0x2004
> +#define CEC_CONFIG 0x2008
> +#define RX_AUTO_DRIVE_ACKNOWLEDGE BIT(9)
> +#define CEC_ADDR 0x200c
> +#define CEC_TX_COUNT 0x2020
> +#define CEC_TX_DATA3_0 0x2024
> +#define CEC_RX_COUNT_STATUS 0x2040
> +#define CEC_RX_DATA3_0 0x2044
> +#define CEC_LOCK_CONTROL 0x2054
> +#define CEC_RXQUAL_BITTIME_CONFIG 0x2060
> +#define CEC_RX_BITTIME_CONFIG 0x2064
> +#define CEC_TX_BITTIME_CONFIG 0x2068
> +
> +#define DMA_CONFIG1 0x4400
> +#define UV_WID_MASK GENMASK(31, 28)
> +#define UV_WID(x) UPDATE(x, 31, 28)
> +#define Y_WID_MASK GENMASK(27, 24)
> +#define Y_WID(x) UPDATE(x, 27, 24)
> +#define DDR_STORE_FORMAT_MASK GENMASK(15, 12)
> +#define DDR_STORE_FORMAT(x) UPDATE(x, 15, 12)
> +#define ABANDON_EN BIT(0)
> +#define DMA_CONFIG2 0x4404
> +#define DMA_CONFIG3 0x4408
> +#define DMA_CONFIG4 0x440c // dma irq en
> +#define DMA_CONFIG5 0x4410 // dma irq clear status
> +#define LINE_FLAG_INT_EN BIT(8)
> +#define HDMIRX_DMA_IDLE_INT BIT(7)
> +#define HDMIRX_LOCK_DISABLE_INT BIT(6)
> +#define LAST_FRAME_AXI_UNFINISH_INT_EN BIT(5)
> +#define FIFO_OVERFLOW_INT_EN BIT(2)
> +#define FIFO_UNDERFLOW_INT_EN BIT(1)
> +#define HDMIRX_AXI_ERROR_INT_EN BIT(0)
> +#define DMA_CONFIG6 0x4414
> +#define RB_SWAP_EN BIT(9)
> +#define HSYNC_TOGGLE_EN BIT(5)
> +#define VSYNC_TOGGLE_EN BIT(4)
> +#define HDMIRX_DMA_EN BIT(1)
> +#define DMA_CONFIG7 0x4418
> +#define LINE_FLAG_NUM_MASK GENMASK(31, 16)
> +#define LINE_FLAG_NUM(x) UPDATE(x, 31, 16)
> +#define LOCK_FRAME_NUM_MASK GENMASK(11, 0)
> +#define LOCK_FRAME_NUM(x) UPDATE(x, 11, 0)
> +#define DMA_CONFIG8 0x441c
> +#define REG_MIRROR_EN BIT(0)
> +#define DMA_CONFIG9 0x4420
> +#define DMA_CONFIG10 0x4424
> +#define DMA_CONFIG11 0x4428
> +#define EDID_READ_EN_MASK BIT(8)
> +#define EDID_READ_EN(x) UPDATE(x, 8, 8)
> +#define EDID_WRITE_EN_MASK BIT(7)
> +#define EDID_WRITE_EN(x) UPDATE(x, 7, 7)
> +#define EDID_SLAVE_ADDR_MASK GENMASK(6, 0)
> +#define EDID_SLAVE_ADDR(x) UPDATE(x, 6, 0)
> +#define DMA_STATUS1 0x4430 // dma irq status
> +#define DMA_STATUS2 0x4434
> +#define DMA_STATUS3 0x4438
> +#define DMA_STATUS4 0x443c
> +#define DMA_STATUS5 0x4440
> +#define DMA_STATUS6 0x4444
> +#define DMA_STATUS7 0x4448
> +#define DMA_STATUS8 0x444c
> +#define DMA_STATUS9 0x4450
> +#define DMA_STATUS10 0x4454
> +#define HDMIRX_LOCK BIT(3)
> +#define DMA_STATUS11 0x4458
> +#define HDMIRX_TYPE_MASK GENMASK(8, 7)
> +#define HDMIRX_COLOR_DEPTH_MASK GENMASK(6, 3)
> +#define HDMIRX_FORMAT_MASK GENMASK(2, 0)
> +#define DMA_STATUS12 0x445c
> +#define DMA_STATUS13 0x4460
> +#define DMA_STATUS14 0x4464
> +
> +#define MAINUNIT_INTVEC_INDEX 0x5000
> +#define MAINUNIT_0_INT_STATUS 0x5010
> +#define CECRX_NOTIFY_ERR BIT(12)
> +#define CECRX_EOM BIT(11)
> +#define CECTX_DRIVE_ERR BIT(10)
> +#define CECRX_BUSY BIT(9)
> +#define CECTX_BUSY BIT(8)
> +#define CECTX_FRAME_DISCARDED BIT(5)
> +#define CECTX_NRETRANSMIT_FAIL BIT(4)
> +#define CECTX_LINE_ERR BIT(3)
> +#define CECTX_ARBLOST BIT(2)
> +#define CECTX_NACK BIT(1)
> +#define CECTX_DONE BIT(0)
> +#define MAINUNIT_0_INT_MASK_N 0x5014
> +#define MAINUNIT_0_INT_CLEAR 0x5018
> +#define MAINUNIT_0_INT_FORCE 0x501c
> +#define TIMER_BASE_LOCKED_IRQ BIT(26)
> +#define TMDSQPCLK_OFF_CHG BIT(5)
> +#define TMDSQPCLK_LOCKED_CHG BIT(4)
> +#define MAINUNIT_1_INT_STATUS 0x5020
> +#define MAINUNIT_1_INT_MASK_N 0x5024
> +#define MAINUNIT_1_INT_CLEAR 0x5028
> +#define MAINUNIT_1_INT_FORCE 0x502c
> +#define MAINUNIT_2_INT_STATUS 0x5030
> +#define MAINUNIT_2_INT_MASK_N 0x5034
> +#define MAINUNIT_2_INT_CLEAR 0x5038
> +#define MAINUNIT_2_INT_FORCE 0x503c
> +#define PHYCREG_CR_READ_DONE BIT(11)
> +#define PHYCREG_CR_WRITE_DONE BIT(10)
> +#define TMDSVALID_STABLE_CHG BIT(1)
> +
> +#define AVPUNIT_0_INT_STATUS 0x5040
> +#define AVPUNIT_0_INT_MASK_N 0x5044
> +#define AVPUNIT_0_INT_CLEAR 0x5048
> +#define AVPUNIT_0_INT_FORCE 0x504c
> +#define CED_DYN_CNT_CH2_IRQ BIT(22)
> +#define CED_DYN_CNT_CH1_IRQ BIT(21)
> +#define CED_DYN_CNT_CH0_IRQ BIT(20)
> +#define AVPUNIT_1_INT_STATUS 0x5050
> +#define DEFRAMER_VSYNC_THR_REACHED_IRQ BIT(1)
> +#define AVPUNIT_1_INT_MASK_N 0x5054
> +#define DEFRAMER_VSYNC_THR_REACHED_MASK_N BIT(1)
> +#define DEFRAMER_VSYNC_MASK_N BIT(0)
> +#define AVPUNIT_1_INT_CLEAR 0x5058
> +#define DEFRAMER_VSYNC_THR_REACHED_CLEAR BIT(1)
> +#define PKT_0_INT_STATUS 0x5080
> +#define PKTDEC_ACR_CHG_IRQ BIT(3)
> +#define PKT_0_INT_MASK_N 0x5084
> +#define PKTDEC_ACR_CHG_MASK_N BIT(3)
> +#define PKT_0_INT_CLEAR 0x5088
> +#define PKT_1_INT_STATUS 0x5090
> +#define PKT_1_INT_MASK_N 0x5094
> +#define PKT_1_INT_CLEAR 0x5098
> +#define PKT_2_INT_STATUS 0x50a0
> +#define PKTDEC_ACR_RCV_IRQ BIT(3)
> +#define PKT_2_INT_MASK_N 0x50a4
> +#define PKTDEC_AVIIF_RCV_IRQ BIT(11)
> +#define PKTDEC_ACR_RCV_MASK_N BIT(3)
> +#define PKT_2_INT_CLEAR 0x50a8
> +#define PKTDEC_AVIIF_RCV_CLEAR BIT(11)
> +#define PKTDEC_ACR_RCV_CLEAR BIT(3)
> +#define SCDC_INT_STATUS 0x50c0
> +#define SCDC_INT_MASK_N 0x50c4
> +#define SCDC_INT_CLEAR 0x50c8
> +#define SCDCTMDSCCFG_CHG BIT(2)
> +
> +#define CEC_INT_STATUS 0x5100
> +#define CEC_INT_MASK_N 0x5104
> +#define CEC_INT_CLEAR 0x5108
> +
> +#endif
> diff --git a/drivers/media/platform/synopsys/hdmirx/snps_hdmirx_cec.c b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx_cec.c
> new file mode 100644
> index 000000000000..9f67e2080bb6
> --- /dev/null
> +++ b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx_cec.c
> @@ -0,0 +1,285 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2021 Rockchip Electronics Co. Ltd.
> + *
> + * Author: Shunqing Chen <csq@...k-chips.com>
> + */
> +
> +#include <linux/interrupt.h>
> +#include <linux/io.h>
> +#include <linux/module.h>
> +#include <linux/platform_device.h>
> +#include <linux/slab.h>
> +
> +#include <media/cec.h>
> +#include <media/cec-notifier.h>
> +
> +#include "snps_hdmirx.h"
> +#include "snps_hdmirx_cec.h"
> +
> +static void hdmirx_cec_write(struct hdmirx_cec *cec, int reg, u32 val)
> +{
> + cec->ops->write(cec->hdmirx, reg, val);
> +}
> +
> +static u32 hdmirx_cec_read(struct hdmirx_cec *cec, int reg)
> +{
> + return cec->ops->read(cec->hdmirx, reg);
> +}
> +
> +static void hdmirx_cec_update_bits(struct hdmirx_cec *cec, int reg, u32 mask,
> + u32 data)
> +{
> + u32 val = hdmirx_cec_read(cec, reg) & ~mask;
> +
> + val |= (data & mask);
> + hdmirx_cec_write(cec, reg, val);
> +}
> +
> +static int hdmirx_cec_log_addr(struct cec_adapter *adap, u8 logical_addr)
> +{
> + struct hdmirx_cec *cec = cec_get_drvdata(adap);
> +
> + if (logical_addr == CEC_LOG_ADDR_INVALID)
> + cec->addresses = 0;
> + else
> + cec->addresses |= BIT(logical_addr) | BIT(15);
> +
> + hdmirx_cec_write(cec, CEC_ADDR, cec->addresses);
> +
> + return 0;
> +}
> +
> +/* signal_free_time is handled by the Synopsys Designware
> + * HDMIRX Controller hardware.
> + */
> +static int hdmirx_cec_transmit(struct cec_adapter *adap, u8 attempts,
> + u32 signal_free_time, struct cec_msg *msg)
> +{
> + struct hdmirx_cec *cec = cec_get_drvdata(adap);
> + u32 data[4] = {0};
> + int i, data_len, msg_len;
> +
> + msg_len = msg->len;
> +
> + hdmirx_cec_write(cec, CEC_TX_COUNT, msg_len - 1);
> + for (i = 0; i < msg_len; i++)
> + data[i / 4] |= msg->msg[i] << (i % 4) * 8;
> +
> + data_len = DIV_ROUND_UP(msg_len, 4);
> +
> + for (i = 0; i < data_len; i++)
> + hdmirx_cec_write(cec, CEC_TX_DATA3_0 + i * 4, data[i]);
> +
> + hdmirx_cec_write(cec, CEC_TX_CONTROL, 0x1);
> +
> + return 0;
> +}
> +
> +static irqreturn_t hdmirx_cec_hardirq(int irq, void *data)
> +{
> + struct cec_adapter *adap = data;
> + struct hdmirx_cec *cec = cec_get_drvdata(adap);
> + u32 stat = hdmirx_cec_read(cec, CEC_INT_STATUS);
> + irqreturn_t ret = IRQ_HANDLED;
> + u32 val;
> +
> + if (!stat)
> + return IRQ_NONE;
> +
> + hdmirx_cec_write(cec, CEC_INT_CLEAR, stat);
> +
> + if (stat & CECTX_LINE_ERR) {
> + cec->tx_status = CEC_TX_STATUS_ERROR;
> + cec->tx_done = true;
> + ret = IRQ_WAKE_THREAD;
> + } else if (stat & CECTX_DONE) {
> + cec->tx_status = CEC_TX_STATUS_OK;
> + cec->tx_done = true;
> + ret = IRQ_WAKE_THREAD;
> + } else if (stat & CECTX_NACK) {
> + cec->tx_status = CEC_TX_STATUS_NACK;
> + cec->tx_done = true;
> + ret = IRQ_WAKE_THREAD;
> + } else if (stat & CECTX_ARBLOST) {
> + cec->tx_status = CEC_TX_STATUS_ARB_LOST;
> + cec->tx_done = true;
> + ret = IRQ_WAKE_THREAD;
> + }
> +
> + if (stat & CECRX_EOM) {
> + unsigned int len, i;
> +
> + val = hdmirx_cec_read(cec, CEC_RX_COUNT_STATUS);
> + /* rxbuffer locked status */
> + if ((val & 0x80))
> + return ret;
> +
> + len = (val & 0xf) + 1;
> + if (len > sizeof(cec->rx_msg.msg))
> + len = sizeof(cec->rx_msg.msg);
> +
> + for (i = 0; i < len; i++) {
> + if (!(i % 4))
> + val = hdmirx_cec_read(cec, CEC_RX_DATA3_0 + i / 4 * 4);
> + cec->rx_msg.msg[i] = (val >> ((i % 4) * 8)) & 0xff;
> + }
> +
> + cec->rx_msg.len = len;
> + smp_wmb(); /* receive RX msg */
> + cec->rx_done = true;
> + hdmirx_cec_write(cec, CEC_LOCK_CONTROL, 0x1);
> +
> + ret = IRQ_WAKE_THREAD;
> + }
> +
> + return ret;
> +}
> +
> +static irqreturn_t hdmirx_cec_thread(int irq, void *data)
> +{
> + struct cec_adapter *adap = data;
> + struct hdmirx_cec *cec = cec_get_drvdata(adap);
> +
> + if (cec->tx_done) {
> + cec->tx_done = false;
> + cec_transmit_attempt_done(adap, cec->tx_status);
> + }
> + if (cec->rx_done) {
> + cec->rx_done = false;
> + smp_rmb(); /* RX msg has been received */
> + cec_received_msg(adap, &cec->rx_msg);
> + }
> +
> + return IRQ_HANDLED;
> +}
> +
> +static int hdmirx_cec_enable(struct cec_adapter *adap, bool enable)
> +{
> + struct hdmirx_cec *cec = cec_get_drvdata(adap);
> +
> + if (!enable) {
> + hdmirx_cec_write(cec, CEC_INT_MASK_N, 0);
> + hdmirx_cec_write(cec, CEC_INT_CLEAR, 0);
> + if (cec->ops->disable)
> + cec->ops->disable(cec->hdmirx);
> + } else {
> + unsigned int irqs;
> +
> + hdmirx_cec_log_addr(cec->adap, CEC_LOG_ADDR_INVALID);
> + if (cec->ops->enable)
> + cec->ops->enable(cec->hdmirx);
> + hdmirx_cec_update_bits(cec, GLOBAL_SWENABLE, CEC_ENABLE, CEC_ENABLE);
> +
> + irqs = CECTX_LINE_ERR | CECTX_NACK | CECRX_EOM | CECTX_DONE;
> + hdmirx_cec_write(cec, CEC_INT_MASK_N, irqs);
> + }
> +
> + return 0;
> +}
> +
> +static const struct cec_adap_ops hdmirx_cec_ops = {
> + .adap_enable = hdmirx_cec_enable,
> + .adap_log_addr = hdmirx_cec_log_addr,
> + .adap_transmit = hdmirx_cec_transmit,
> +};
> +
> +static void hdmirx_cec_del(void *data)
> +{
> + struct hdmirx_cec *cec = data;
> +
> + cec_delete_adapter(cec->adap);
> +}
> +
> +struct hdmirx_cec *snps_hdmirx_cec_register(struct hdmirx_cec_data *data)
> +{
> + struct hdmirx_cec *cec;
> + unsigned int irqs;
> + int ret;
> +
> + /*
> + * Our device is just a convenience - we want to link to the real
> + * hardware device here, so that userspace can see the association
> + * between the HDMI hardware and its associated CEC chardev.
> + */
> + cec = devm_kzalloc(data->dev, sizeof(*cec), GFP_KERNEL);
> + if (!cec)
> + return NULL;
> +
> + cec->dev = data->dev;
> + cec->irq = data->irq;
> + cec->ops = data->ops;
> + cec->hdmirx = data->hdmirx;
> +
> + hdmirx_cec_update_bits(cec, GLOBAL_SWENABLE, CEC_ENABLE, CEC_ENABLE);
> + hdmirx_cec_update_bits(cec, CEC_CONFIG, RX_AUTO_DRIVE_ACKNOWLEDGE,
> + RX_AUTO_DRIVE_ACKNOWLEDGE);
> +
> + hdmirx_cec_write(cec, CEC_TX_COUNT, 0);
> + hdmirx_cec_write(cec, CEC_INT_MASK_N, 0);
> + hdmirx_cec_write(cec, CEC_INT_CLEAR, ~0);
> +
> + cec->adap = cec_allocate_adapter(&hdmirx_cec_ops, cec, "snps-hdmirx",
> + CEC_CAP_LOG_ADDRS | CEC_CAP_TRANSMIT |
> + CEC_CAP_RC | CEC_CAP_PASSTHROUGH |
> + CEC_CAP_MONITOR_ALL,
> + CEC_MAX_LOG_ADDRS);
> + if (IS_ERR(cec->adap)) {
> + dev_err(cec->dev, "cec adap allocate failed\n");
> + return NULL;
> + }
> +
> + /* override the module pointer */
> + cec->adap->owner = THIS_MODULE;
> +
> + ret = devm_add_action(cec->dev, hdmirx_cec_del, cec);
> + if (ret) {
> + cec_delete_adapter(cec->adap);
> + return NULL;
> + }
> +
> + irq_set_status_flags(cec->irq, IRQ_NOAUTOEN);
> +
> + ret = devm_request_threaded_irq(cec->dev, cec->irq,
> + hdmirx_cec_hardirq,
> + hdmirx_cec_thread, IRQF_ONESHOT,
> + "rk_hdmirx_cec", cec->adap);
> + if (ret) {
> + dev_err(cec->dev, "cec irq request failed\n");
> + return NULL;
> + }
> +
> + cec->notify = cec_notifier_cec_adap_register(cec->dev,
> + NULL, cec->adap);
> + if (!cec->notify) {
> + dev_err(cec->dev, "cec notify register failed\n");
> + return NULL;
> + }
> +
> + ret = cec_register_adapter(cec->adap, cec->dev);
> + if (ret < 0) {
> + dev_err(cec->dev, "cec register adapter failed\n");
> + cec_unregister_adapter(cec->adap);
> + return NULL;
> + }
> +
> + irqs = CECTX_LINE_ERR | CECTX_NACK | CECRX_EOM | CECTX_DONE;
> + hdmirx_cec_write(cec, CEC_INT_MASK_N, irqs);
> +
> + /*
> + * CEC documentation says we must not call cec_delete_adapter
> + * after a successful call to cec_register_adapter().
> + */
> + devm_remove_action(cec->dev, hdmirx_cec_del, cec);
> +
> + enable_irq(cec->irq);
> +
> + return cec;
> +}
> +
> +void snps_hdmirx_cec_unregister(struct hdmirx_cec *cec)
> +{
> + disable_irq(cec->irq);
> +
> + cec_unregister_adapter(cec->adap);
> +}
> diff --git a/drivers/media/platform/synopsys/hdmirx/snps_hdmirx_cec.h b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx_cec.h
> new file mode 100644
> index 000000000000..c55c403cdb9f
> --- /dev/null
> +++ b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx_cec.h
> @@ -0,0 +1,44 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (c) 2021 Rockchip Electronics Co. Ltd.
> + *
> + * Author: Shunqing Chen <csq@...k-chips.com>
> + */
> +
> +#ifndef DW_HDMI_RX_CEC_H
> +#define DW_HDMI_RX_CEC_H
> +
> +struct snps_hdmirx_dev;
> +
> +struct hdmirx_cec_ops {
> + void (*write)(struct snps_hdmirx_dev *hdmirx_dev, int reg, u32 val);
> + u32 (*read)(struct snps_hdmirx_dev *hdmirx_dev, int reg);
> + void (*enable)(struct snps_hdmirx_dev *hdmirx);
> + void (*disable)(struct snps_hdmirx_dev *hdmirx);
> +};
> +
> +struct hdmirx_cec_data {
> + struct snps_hdmirx_dev *hdmirx;
> + const struct hdmirx_cec_ops *ops;
> + struct device *dev;
> + int irq;
> +};
> +
> +struct hdmirx_cec {
> + struct snps_hdmirx_dev *hdmirx;
> + struct device *dev;
> + const struct hdmirx_cec_ops *ops;
> + u32 addresses;
> + struct cec_adapter *adap;
> + struct cec_msg rx_msg;
> + unsigned int tx_status;
> + bool tx_done;
> + bool rx_done;
> + struct cec_notifier *notify;
> + int irq;
> +};
> +
> +struct hdmirx_cec *snps_hdmirx_cec_register(struct hdmirx_cec_data *data);
> +void snps_hdmirx_cec_unregister(struct hdmirx_cec *cec);
> +
> +#endif /* DW_HDMI_RX_CEC_H */
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