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Date: Thu, 13 Jul 2017 08:28:29 +0200
From: Niklas Söderlund
<niklas.soderlund@...natech.se>
To: Kieran Bingham <kbingham@...nel.org>
Cc: linux-renesas-soc@...r.kernel.org, linux-media@...r.kernel.org,
linux-kernel@...r.kernel.org, laurent.pinchart@...asonboard.com,
kieran.bingham@...asonboard.com, hans.verkuil@...co.com,
Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Sakari Ailus <sakari.ailus@...ux.intel.com>,
Steve Longerbeam <slongerbeam@...il.com>,
Pavel Machek <pavel@....cz>,
Rajmohan Mani <rajmohan.mani@...el.com>,
Ramesh Shanmugasundaram <ramesh.shanmugasundaram@...renesas.com>,
Todor Tomov <todor.tomov@...aro.org>,
Ramiro Oliveira <Ramiro.Oliveira@...opsys.com>,
Robert Jarzmik <robert.jarzmik@...e.fr>,
Hyungwoo Yang <hyungwoo.yang@...el.com>
Subject: Re: [PATCH v7 2/3] media: i2c: adv748x: add adv748x driver
Hi Kieran,
Thanks for your hard work.
On 2017-07-06 12:01:16 +0100, Kieran Bingham wrote:
> From: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
>
> Provide support for the ADV7481 and ADV7482.
>
> The driver is modelled with 4 subdevices to allow simultaneous streaming
> from the AFE (Analog front end) and HDMI inputs though two CSI TX
> entities.
>
> The HDMI entity is linked to the TXA CSI bus, whilst the AFE is linked
> to the TXB CSI bus.
>
> The driver is based on a prototype by Koji Matsuoka in the Renesas BSP,
> and an earlier rework by Niklas Söderlund.
>
> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
Unfortunately I have hit a regression with v7. I use the latest R-Car
Gen3 VIN and CSI-2 patches in conjunction with v6 and v7 of this series.
And wile running v4l2-compliance on a VIN which is connected to the CVBS
input it fails, see output at the end.
If i substitute the adv748x driver patch with v6 version v4l2-compliance
works as expected. It also works as expected for the HDMI inputs using
both v6 and v7 of this series. I have tried using both a PAL and NTSC
source so I don't think that the removal of auto detection by the
adv748x driver itself in v7 is to blame, but I have not verified this.
To ease replication let me point out the compliance.sh script in
vin-tests which will replicate the MC setup before running the
v4l2-compliance.
# v4l2-compliance -s -d /dev/video26
v4l2-compliance SHA : [ 359.935042] rcar-vin e6ef1000.video: ================= START STATUS =================
d16a17abd1d8d788[ 359.944098] rcar-vin e6ef1000.video: ================== END STATUS ==================
5ca2f44fb295035278baa89c
Driver Info:
Driver name : rcar_vin
Card type : R_Car_VIN
Bus info : platform:e6ef1000.video
Driver version: 4.12.0
Capabilities : 0x85200001
Video Capture
Read/Write
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x05200001
Video Capture
Read/Write
Streaming
Extended Pix Format
Compliance test for device /dev/video26 (not using libv4l2):
Required ioctls:
test VIDIOC_QUERYCAP: OK
Allow for multiple opens:
test second video open: OK
test VIDIOC_QUERYCAP: OK
test VIDIOC_G/S_PRIORITY: OK
test for unlimited opens: OK
Debug ioctls:
test VIDIOC_DBG_G/S_REGISTER: OK (Not Supported)
test VIDIOC_LOG_STATUS: OK
Input ioctls:
test VIDIOC_G/S_TUNER/ENUM_FREQ_BANDS: OK (Not Supported)
test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
test VIDIOC_S_HW_FREQ_SEEK: OK (Not Supported)
test VIDIOC_ENUMAUDIO: OK (Not Supported)
test VIDIOC_G/S/ENUMINPUT: OK
test VIDIOC_G/S_AUDIO: OK (Not Supported)
Inputs: 1 Audio Inputs: 0 Tuners: 0
Output ioctls:
test VIDIOC_G/S_MODULATOR: OK (Not Supported)
test VIDIOC_G/S_FREQUENCY: OK (Not Supported)
test VIDIOC_ENUMAUDOUT: OK (Not Supported)
test VIDIOC_G/S/ENUMOUTPUT: OK (Not Supported)
test VIDIOC_G/S_AUDOUT: OK (Not Supported)
Outputs: 0 Audio Outputs: 0 Modulators: 0
Input/Output configuration ioctls:
test VIDIOC_ENUM/G/S/QUERY_STD: OK (Not Supported)
test VIDIOC_ENUM/G/S/QUERY_DV_TIMINGS: OK (Not Supported)
test VIDIOC_DV_TIMINGS_CAP: OK (Not Supported)
test VIDIOC_G/S_EDID: OK (Not Supported)
Test input 0:
Control ioctls:
test VIDIOC_QUERY_EXT_CTRL/QUERYMENU: OK (Not Supported)
test VIDIOC_QUERYCTRL: OK (Not Supported)
test VIDIOC_G/S_CTRL: OK (Not Supported)
test VIDIOC_G/S/TRY_EXT_CTRLS: OK (Not Supported)
test VIDIOC_(UN)SUBSCRIBE_EVENT/DQEVENT: OK (Not Supported)
test VIDIOC_G/S_JPEGCOMP: OK (Not Supported)
Standard Controls: 0 Private Controls: 0
Format ioctls:
test VIDIOC_ENUM_FMT/FRAMESIZES/FRAMEINTERVALS: OK
test VIDIOC_G/S_PARM: OK (Not Supported)
test VIDIOC_G_FBUF: OK (Not Supported)
test VIDIOC_G_FMT: OK
test VIDIOC_TRY_FMT: OK
test VIDIOC_S_FMT: OK
test VIDIOC_G_SLICED_VBI_CAP: OK (Not Supported)
test Cropping: OK (Not Supported)
test Composing: OK (Not Supported)
test Scaling: OK
Codec ioctls:
test VIDIOC_(TRY_)ENCODER_CMD: OK (Not Supported)
test VIDIOC_G_ENC_INDEX: OK (Not Supported)
test VIDIOC_(TRY_)DECODER_CMD: OK (Not Supported)
Buffer ioctls:
test VIDIOC_REQBUFS/CREATE_BUFS/QUERYBUF: OK
test VIDIOC_EXPBUF: OK
Test input 0:
Streaming ioctls:
test read/write: OK
fail: v4l2-test-buffers.cpp(308): (int)g_sequence() == seq.last_seq + 1
fail: v4l2-test-buffers.cpp(707): buf.check(q, last_seq)
fail: v4l2-test-buffers.cpp(977): captureBufs(node, q, m2m_q, frame_count, false)
test MMAP: FAIL
test USERPTR: OK (Not Supported)
test DMABUF: Cannot test, specify --expbuf-device
Total: 46, Succeeded: 45, Failed: 1, Warnings: 0
>
> ---
>
> v2:
> - Implement DT parsing
> - adv748x: Add CSI2 entity
> - adv748x: Rework pad allocations and fmts
> - Give AFE 8 input pads and move pad defines
> - Use the enums to ensure pads are referenced correctly.
> - adv748x: Rename AFE/HDMI entities
> Now they are 'just afe' and 'just hdmi'
> - Reorder the entity enum and structures
> - Added pad-format for the CSI2 entities
> - CSI2 s_stream pass through
> - CSI2 control pass through (with link following)
>
> v3:
> - dt: Extend DT documentation to specify interrupt mappings
> - simplify adv748x_parse_dt
> - core: Add banner to header file describing ADV748x variants
> - Use entity structure pointers rather than global state pointers where
> possible
> - afe: Reduce indent on afe_status
> - hdmi: Add error checking to the bt->pixelclock values.
> - Remove all unnecessary pad checks: handled by core
> - Fix all probe cleanup paths
> - adv748x_csi2_probe() now fails if it has no endpoint
> - csi2: Fix small oneliners for is_txa and get_remote_sd()
> - csi2: Fix checkpatch warnings
> - csi2: Fix up s_stream pass-through
> - csi2: Fix up Pixel Rate passthrough
> - csi2: simplify adv748x_csi2_get_pad_format()
> - Remove 'async notifiers' from AFE/HDMI
> Using async notifiers was overkill, when we have access to the
> subdevices internally and can register them directly.
> - Use state lock in control handlers and clean up s_ctrls
> - remove _interruptible mutex locks
>
> v4:
> - all: Convert hex 0xXX to lowercase
> - all: Use defines instead of hardcoded register values
> - all: Use regmap
> - afe, csi2, hdmi: _probe -> _init
> - afe, csi2, hdmi: _remove -> _cleanup
> - afe, hdmi: Convert pattern generator to a control
> - afe, hdmi: get/set-fmt refactor
> - afe, hdmi, csi2: Convert to internal calls for pixelrate
> - afe: Allow the AFE to configure the Input Select from DT
> - afe: Reduce indent on adv748x_afe_status switch
> - afe: Remove ununsed macro definitions AIN0-7
> - afe: Remove extraneous control checks handled by core
> - afe: Comment fixups
> - afe: Rename error label
> - afe: Correct control names on the SDP
> - afe: Use AIN0-7 rather than AIN1-8 to match ports and MC pads
> - core: adv748x_parse_dt references to nodes, and catch multiple
> endpoints in a port.
> - core: adv748x_dt_cleanup to simplify releasing DT nodes
> - core: adv748x_print_info renamed to adv748x_identify_chip
> - core: reorganise ordering of probe sequence
> - core: No need for of_match_ptr
> - core: Fix up i2c read/writes (regmap still on todo list)
> - core: Set specific functions from the entities on subdev-init
> - core: Use kzalloc for state instead of devm
> - core: Improve probe error reporting
> - core: Track unknown BIT(6) in tx{a,b}_power
> - csi2: Improve adv748x_csi2_get_remote_sd as adv748x_csi2_get_source_sd
> - csi2: -EPIPE instead of -ENODEV
> - csi2: adv_dbg, instead of adv_info
> - csi2: adv748x_csi2_set_format fix
> - csi2: remove async notifier and sd member variables
> - csi2: register links from the CSI2
> - csi2: create virtual channel helper function
> - dt: Remove numbering from endpoints
> - dt: describe ports and interrupts as optional
> - dt: Re-tab
> - hdmi: adv748x_hdmi_have_signal -> adv748x_hdmi_has_signal
> - hdmi: fix adv748x_hdmi_read_pixelclock return checks
> - hdmi: improve adv748x_hdmi_set_video_timings
> - hdmi: Fix tmp variable as polarity
> - hdmi: Improve adv748x_hdmi_s_stream
> - hdmi: Clean up adv748x_hdmi_s_ctrl register definitions and usage
> - hdmi: Fix up adv748x_hdmi_s_dv_timings with macro names for register
> - hdmi: Add locking to adv748x_hdmi_g_dv_timings
> writes and locking
> - hdmi: adv748x_hdmi_set_de_timings function added to clarify DE writes
> - hdmi: Use CP in control register naming to match component processor
> - hdmi: clean up adv748x_hdmi_query_dv_timings()
> - KConfig: Fix up dependency and capitalisation
>
> v5:
> - afe,hdmi: _set_pixelrate -> _propagate_pixelrate
> - hdmi: Fix arm32 compilation failure : Use DIV_ROUND_CLOSEST_ULL
> - core: remove unused link functions
> - csi2: Use immutable links for HDMI->TXA, AFE->TXB
>
> v6:
> - hdmi: Provide EDID support
> - afe: Fix InLock inversion bug
> - afe: Prevent autodetection of input format except in querystd
> - afe,hdmi: Improve pattern generator control strings
> - hdmi: Remove interlaced support capability (it's untested)
>
> v7:
> - afe: Initialise std to V4L2_STD_NTSC_M and restore after query
> - afe: use V4L2_FIELD_ALTERNATE
> - hdmi: Define a minimum pixelclock value
> - hdmi: Remove interlaced formats as they are untested
> - Kconfig: Select REGMAP_I2C
> - core: include linux/slab.h for kzalloc/kfree
>
> drivers/media/i2c/Kconfig | 12 +-
> drivers/media/i2c/Makefile | 1 +-
> drivers/media/i2c/adv748x/Makefile | 7 +-
> drivers/media/i2c/adv748x/adv748x-afe.c | 552 ++++++++++++++++-
> drivers/media/i2c/adv748x/adv748x-core.c | 832 ++++++++++++++++++++++++-
> drivers/media/i2c/adv748x/adv748x-csi2.c | 327 +++++++++-
> drivers/media/i2c/adv748x/adv748x-hdmi.c | 768 ++++++++++++++++++++++-
> drivers/media/i2c/adv748x/adv748x.h | 425 ++++++++++++-
> 8 files changed, 2924 insertions(+)
> create mode 100644 drivers/media/i2c/adv748x/Makefile
> create mode 100644 drivers/media/i2c/adv748x/adv748x-afe.c
> create mode 100644 drivers/media/i2c/adv748x/adv748x-core.c
> create mode 100644 drivers/media/i2c/adv748x/adv748x-csi2.c
> create mode 100644 drivers/media/i2c/adv748x/adv748x-hdmi.c
> create mode 100644 drivers/media/i2c/adv748x/adv748x.h
>
> diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
> index 121b3b5394cb..fa2e7d8d4e3b 100644
> --- a/drivers/media/i2c/Kconfig
> +++ b/drivers/media/i2c/Kconfig
> @@ -204,6 +204,18 @@ config VIDEO_ADV7183
> To compile this driver as a module, choose M here: the
> module will be called adv7183.
>
> +config VIDEO_ADV748X
> + tristate "Analog Devices ADV748x decoder"
> + depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
> + depends on OF
> + select REGMAP_I2C
> + ---help---
> + V4L2 subdevice driver for the Analog Devices
> + ADV7481 and ADV7482 HDMI/Analog video decoders.
> +
> + To compile this driver as a module, choose M here: the
> + module will be called adv748x.
> +
> config VIDEO_ADV7604
> tristate "Analog Devices ADV7604 decoder"
> depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
> diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
> index 2c0868fa6034..30e856c02422 100644
> --- a/drivers/media/i2c/Makefile
> +++ b/drivers/media/i2c/Makefile
> @@ -28,6 +28,7 @@ obj-$(CONFIG_VIDEO_ADV7180) += adv7180.o
> obj-$(CONFIG_VIDEO_ADV7183) += adv7183.o
> obj-$(CONFIG_VIDEO_ADV7343) += adv7343.o
> obj-$(CONFIG_VIDEO_ADV7393) += adv7393.o
> +obj-$(CONFIG_VIDEO_ADV748X) += adv748x/
> obj-$(CONFIG_VIDEO_ADV7604) += adv7604.o
> obj-$(CONFIG_VIDEO_ADV7842) += adv7842.o
> obj-$(CONFIG_VIDEO_AD9389B) += ad9389b.o
> diff --git a/drivers/media/i2c/adv748x/Makefile b/drivers/media/i2c/adv748x/Makefile
> new file mode 100644
> index 000000000000..c0711e076f1d
> --- /dev/null
> +++ b/drivers/media/i2c/adv748x/Makefile
> @@ -0,0 +1,7 @@
> +adv748x-objs := \
> + adv748x-afe.o \
> + adv748x-core.o \
> + adv748x-csi2.o \
> + adv748x-hdmi.o
> +
> +obj-$(CONFIG_VIDEO_ADV748X) += adv748x.o
> diff --git a/drivers/media/i2c/adv748x/adv748x-afe.c b/drivers/media/i2c/adv748x/adv748x-afe.c
> new file mode 100644
> index 000000000000..b33ccfc08708
> --- /dev/null
> +++ b/drivers/media/i2c/adv748x/adv748x-afe.c
> @@ -0,0 +1,552 @@
> +/*
> + * Driver for Analog Devices ADV748X 8 channel analog front end (AFE) receiver
> + * with standard definition processor (SDP)
> + *
> + * Copyright (C) 2017 Renesas Electronics Corp.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +
> +#include <linux/delay.h>
> +#include <linux/module.h>
> +#include <linux/mutex.h>
> +#include <linux/v4l2-dv-timings.h>
> +
> +#include <media/v4l2-ctrls.h>
> +#include <media/v4l2-device.h>
> +#include <media/v4l2-dv-timings.h>
> +#include <media/v4l2-ioctl.h>
> +
> +#include "adv748x.h"
> +
> +/* -----------------------------------------------------------------------------
> + * SDP
> + */
> +
> +#define ADV748X_AFE_STD_AD_PAL_BG_NTSC_J_SECAM 0x0
> +#define ADV748X_AFE_STD_AD_PAL_BG_NTSC_J_SECAM_PED 0x1
> +#define ADV748X_AFE_STD_AD_PAL_N_NTSC_J_SECAM 0x2
> +#define ADV748X_AFE_STD_AD_PAL_N_NTSC_M_SECAM 0x3
> +#define ADV748X_AFE_STD_NTSC_J 0x4
> +#define ADV748X_AFE_STD_NTSC_M 0x5
> +#define ADV748X_AFE_STD_PAL60 0x6
> +#define ADV748X_AFE_STD_NTSC_443 0x7
> +#define ADV748X_AFE_STD_PAL_BG 0x8
> +#define ADV748X_AFE_STD_PAL_N 0x9
> +#define ADV748X_AFE_STD_PAL_M 0xa
> +#define ADV748X_AFE_STD_PAL_M_PED 0xb
> +#define ADV748X_AFE_STD_PAL_COMB_N 0xc
> +#define ADV748X_AFE_STD_PAL_COMB_N_PED 0xd
> +#define ADV748X_AFE_STD_PAL_SECAM 0xe
> +#define ADV748X_AFE_STD_PAL_SECAM_PED 0xf
> +
> +static int adv748x_afe_read_ro_map(struct adv748x_state *state, u8 reg)
> +{
> + int ret;
> +
> + /* Select SDP Read-Only Main Map */
> + ret = sdp_write(state, ADV748X_SDP_MAP_SEL,
> + ADV748X_SDP_MAP_SEL_RO_MAIN);
> + if (ret < 0)
> + return ret;
> +
> + return sdp_read(state, reg);
> +}
> +
> +static int adv748x_afe_status(struct adv748x_afe *afe, u32 *signal,
> + v4l2_std_id *std)
> +{
> + struct adv748x_state *state = adv748x_afe_to_state(afe);
> + int info;
> +
> + /* Read status from reg 0x10 of SDP RO Map */
> + info = adv748x_afe_read_ro_map(state, ADV748X_SDP_RO_10);
> + if (info < 0)
> + return info;
> +
> + if (signal)
> + *signal = info & ADV748X_SDP_RO_10_IN_LOCK ?
> + 0 : V4L2_IN_ST_NO_SIGNAL;
> +
> + if (!std)
> + return 0;
> +
> + /* Standard not valid if there is no signal */
> + if (!(info & ADV748X_SDP_RO_10_IN_LOCK)) {
> + *std = V4L2_STD_UNKNOWN;
> + return 0;
> + }
> +
> + switch (info & 0x70) {
> + case 0x00:
> + *std = V4L2_STD_NTSC;
> + break;
> + case 0x10:
> + *std = V4L2_STD_NTSC_443;
> + break;
> + case 0x20:
> + *std = V4L2_STD_PAL_M;
> + break;
> + case 0x30:
> + *std = V4L2_STD_PAL_60;
> + break;
> + case 0x40:
> + *std = V4L2_STD_PAL;
> + break;
> + case 0x50:
> + *std = V4L2_STD_SECAM;
> + break;
> + case 0x60:
> + *std = V4L2_STD_PAL_Nc | V4L2_STD_PAL_N;
> + break;
> + case 0x70:
> + *std = V4L2_STD_SECAM;
> + break;
> + default:
> + *std = V4L2_STD_UNKNOWN;
> + break;
> + }
> +
> + return 0;
> +}
> +
> +static void adv748x_afe_fill_format(struct adv748x_afe *afe,
> + struct v4l2_mbus_framefmt *fmt)
> +{
> + memset(fmt, 0, sizeof(*fmt));
> +
> + fmt->code = MEDIA_BUS_FMT_UYVY8_2X8;
> + fmt->colorspace = V4L2_COLORSPACE_SMPTE170M;
> + fmt->field = V4L2_FIELD_ALTERNATE;
> +
> + fmt->width = 720;
> + fmt->height = afe->curr_norm & V4L2_STD_525_60 ? 480 : 576;
> +
> + /* Field height */
> + fmt->height /= 2;
> +}
> +
> +static int adv748x_afe_std(v4l2_std_id std)
> +{
> + if (std == V4L2_STD_PAL_60)
> + return ADV748X_AFE_STD_PAL60;
> + if (std == V4L2_STD_NTSC_443)
> + return ADV748X_AFE_STD_NTSC_443;
> + if (std == V4L2_STD_PAL_N)
> + return ADV748X_AFE_STD_PAL_N;
> + if (std == V4L2_STD_PAL_M)
> + return ADV748X_AFE_STD_PAL_M;
> + if (std == V4L2_STD_PAL_Nc)
> + return ADV748X_AFE_STD_PAL_COMB_N;
> + if (std & V4L2_STD_NTSC)
> + return ADV748X_AFE_STD_NTSC_M;
> + if (std & V4L2_STD_PAL)
> + return ADV748X_AFE_STD_PAL_BG;
> + if (std & V4L2_STD_SECAM)
> + return ADV748X_AFE_STD_PAL_SECAM;
> +
> + return -EINVAL;
> +}
> +
> +static void adv748x_afe_set_video_standard(struct adv748x_state *state,
> + int sdpstd)
> +{
> + sdp_clrset(state, ADV748X_SDP_VID_SEL, ADV748X_SDP_VID_SEL_MASK,
> + (sdpstd & 0xf) << ADV748X_SDP_VID_SEL_SHIFT);
> +}
> +
> +static int adv748x_afe_s_input(struct adv748x_afe *afe, unsigned int input)
> +{
> + struct adv748x_state *state = adv748x_afe_to_state(afe);
> +
> + return sdp_write(state, ADV748X_SDP_INSEL, input);
> +}
> +
> +static int adv748x_afe_g_pixelaspect(struct v4l2_subdev *sd,
> + struct v4l2_fract *aspect)
> +{
> + struct adv748x_afe *afe = adv748x_sd_to_afe(sd);
> +
> + if (afe->curr_norm & V4L2_STD_525_60) {
> + aspect->numerator = 11;
> + aspect->denominator = 10;
> + } else {
> + aspect->numerator = 54;
> + aspect->denominator = 59;
> + }
> +
> + return 0;
> +}
> +
> +/* -----------------------------------------------------------------------------
> + * v4l2_subdev_video_ops
> + */
> +
> +static int adv748x_afe_g_std(struct v4l2_subdev *sd, v4l2_std_id *norm)
> +{
> + struct adv748x_afe *afe = adv748x_sd_to_afe(sd);
> +
> + *norm = afe->curr_norm;
> +
> + return 0;
> +}
> +
> +static int adv748x_afe_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
> +{
> + struct adv748x_afe *afe = adv748x_sd_to_afe(sd);
> + struct adv748x_state *state = adv748x_afe_to_state(afe);
> + int afe_std = adv748x_afe_std(std);
> +
> + if (afe_std < 0)
> + return afe_std;
> +
> + mutex_lock(&state->mutex);
> +
> + adv748x_afe_set_video_standard(state, afe_std);
> + afe->curr_norm = std;
> +
> + mutex_unlock(&state->mutex);
> +
> + return 0;
> +}
> +
> +static int adv748x_afe_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
> +{
> + struct adv748x_afe *afe = adv748x_sd_to_afe(sd);
> + struct adv748x_state *state = adv748x_afe_to_state(afe);
> + int ret;
> +
> + mutex_lock(&state->mutex);
> +
> + if (afe->streaming) {
> + ret = -EBUSY;
> + goto unlock;
> + }
> +
> + /* Set auto detect mode */
> + adv748x_afe_set_video_standard(state,
> + ADV748X_AFE_STD_AD_PAL_BG_NTSC_J_SECAM);
> +
> + msleep(100);
> +
> + /* Read detected standard */
> + ret = adv748x_afe_status(afe, NULL, std);
> +
> + /* Restore original state */
> + adv748x_afe_set_video_standard(state, afe->curr_norm);
> +
> +unlock:
> + mutex_unlock(&state->mutex);
> +
> + return ret;
> +}
> +
> +static int adv748x_afe_g_tvnorms(struct v4l2_subdev *sd, v4l2_std_id *norm)
> +{
> + *norm = V4L2_STD_ALL;
> +
> + return 0;
> +}
> +
> +static int adv748x_afe_g_input_status(struct v4l2_subdev *sd, u32 *status)
> +{
> + struct adv748x_afe *afe = adv748x_sd_to_afe(sd);
> + struct adv748x_state *state = adv748x_afe_to_state(afe);
> + int ret;
> +
> + mutex_lock(&state->mutex);
> +
> + ret = adv748x_afe_status(afe, status, NULL);
> +
> + mutex_unlock(&state->mutex);
> + return ret;
> +}
> +
> +static int adv748x_afe_s_stream(struct v4l2_subdev *sd, int enable)
> +{
> + struct adv748x_afe *afe = adv748x_sd_to_afe(sd);
> + struct adv748x_state *state = adv748x_afe_to_state(afe);
> + int ret, signal = V4L2_IN_ST_NO_SIGNAL;
> +
> + mutex_lock(&state->mutex);
> +
> + if (enable) {
> + ret = adv748x_afe_s_input(afe, afe->input);
> + if (ret)
> + goto unlock;
> + }
> +
> + ret = adv748x_txb_power(state, enable);
> + if (ret)
> + goto unlock;
> +
> + afe->streaming = enable;
> +
> + adv748x_afe_status(afe, &signal, NULL);
> + if (signal != V4L2_IN_ST_NO_SIGNAL)
> + adv_dbg(state, "Detected SDP signal\n");
> + else
> + adv_dbg(state, "Couldn't detect SDP video signal\n");
> +
> +unlock:
> + mutex_unlock(&state->mutex);
> +
> + return ret;
> +}
> +
> +static const struct v4l2_subdev_video_ops adv748x_afe_video_ops = {
> + .g_std = adv748x_afe_g_std,
> + .s_std = adv748x_afe_s_std,
> + .querystd = adv748x_afe_querystd,
> + .g_tvnorms = adv748x_afe_g_tvnorms,
> + .g_input_status = adv748x_afe_g_input_status,
> + .s_stream = adv748x_afe_s_stream,
> + .g_pixelaspect = adv748x_afe_g_pixelaspect,
> +};
> +
> +/* -----------------------------------------------------------------------------
> + * v4l2_subdev_pad_ops
> + */
> +
> +static int adv748x_afe_propagate_pixelrate(struct adv748x_afe *afe)
> +{
> + struct v4l2_subdev *tx;
> + unsigned int width, height, fps;
> +
> + tx = adv748x_get_remote_sd(&afe->pads[ADV748X_AFE_SOURCE]);
> + if (!tx)
> + return -ENOLINK;
> +
> + width = 720;
> + height = afe->curr_norm & V4L2_STD_525_60 ? 480 : 576;
> + fps = afe->curr_norm & V4L2_STD_525_60 ? 30 : 25;
> +
> + return adv748x_csi2_set_pixelrate(tx, width * height * fps);
> +}
> +
> +static int adv748x_afe_enum_mbus_code(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_mbus_code_enum *code)
> +{
> + if (code->index != 0)
> + return -EINVAL;
> +
> + code->code = MEDIA_BUS_FMT_UYVY8_2X8;
> +
> + return 0;
> +}
> +
> +static int adv748x_afe_get_format(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_format *sdformat)
> +{
> + struct adv748x_afe *afe = adv748x_sd_to_afe(sd);
> + struct v4l2_mbus_framefmt *mbusformat;
> +
> + /* It makes no sense to get the format of the analog sink pads */
> + if (sdformat->pad != ADV748X_AFE_SOURCE)
> + return -EINVAL;
> +
> + if (sdformat->which == V4L2_SUBDEV_FORMAT_TRY) {
> + mbusformat = v4l2_subdev_get_try_format(sd, cfg, sdformat->pad);
> + sdformat->format = *mbusformat;
> + } else {
> + adv748x_afe_fill_format(afe, &sdformat->format);
> + adv748x_afe_propagate_pixelrate(afe);
> + }
> +
> + return 0;
> +}
> +
> +static int adv748x_afe_set_format(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_format *sdformat)
> +{
> + struct v4l2_mbus_framefmt *mbusformat;
> +
> + /* It makes no sense to get the format of the analog sink pads */
> + if (sdformat->pad != ADV748X_AFE_SOURCE)
> + return -EINVAL;
> +
> + if (sdformat->which == V4L2_SUBDEV_FORMAT_ACTIVE)
> + return adv748x_afe_get_format(sd, cfg, sdformat);
> +
> + mbusformat = v4l2_subdev_get_try_format(sd, cfg, sdformat->pad);
> + *mbusformat = sdformat->format;
> +
> + return 0;
> +}
> +
> +static const struct v4l2_subdev_pad_ops adv748x_afe_pad_ops = {
> + .enum_mbus_code = adv748x_afe_enum_mbus_code,
> + .set_fmt = adv748x_afe_set_format,
> + .get_fmt = adv748x_afe_get_format,
> +};
> +
> +/* -----------------------------------------------------------------------------
> + * v4l2_subdev_ops
> + */
> +
> +static const struct v4l2_subdev_ops adv748x_afe_ops = {
> + .video = &adv748x_afe_video_ops,
> + .pad = &adv748x_afe_pad_ops,
> +};
> +
> +/* -----------------------------------------------------------------------------
> + * Controls
> + */
> +
> +static const char * const afe_ctrl_frp_menu[] = {
> + "Disabled",
> + "Solid Blue",
> + "Color Bars",
> + "Grey Ramp",
> + "Cb Ramp",
> + "Cr Ramp",
> + "Boundary"
> +};
> +
> +static int adv748x_afe_s_ctrl(struct v4l2_ctrl *ctrl)
> +{
> + struct adv748x_afe *afe = adv748x_ctrl_to_afe(ctrl);
> + struct adv748x_state *state = adv748x_afe_to_state(afe);
> + bool enable;
> + int ret;
> +
> + ret = sdp_write(state, 0x0e, 0x00);
> + if (ret < 0)
> + return ret;
> +
> + switch (ctrl->id) {
> + case V4L2_CID_BRIGHTNESS:
> + ret = sdp_write(state, ADV748X_SDP_BRI, ctrl->val);
> + break;
> + case V4L2_CID_HUE:
> + /* Hue is inverted according to HSL chart */
> + ret = sdp_write(state, ADV748X_SDP_HUE, -ctrl->val);
> + break;
> + case V4L2_CID_CONTRAST:
> + ret = sdp_write(state, ADV748X_SDP_CON, ctrl->val);
> + break;
> + case V4L2_CID_SATURATION:
> + ret = sdp_write(state, ADV748X_SDP_SD_SAT_U, ctrl->val);
> + if (ret)
> + break;
> + ret = sdp_write(state, ADV748X_SDP_SD_SAT_V, ctrl->val);
> + break;
> + case V4L2_CID_TEST_PATTERN:
> + enable = !!ctrl->val;
> +
> + /* Enable/Disable Color bar test patterns */
> + ret = sdp_clrset(state, ADV748X_SDP_DEF, ADV748X_SDP_DEF_VAL_EN,
> + enable);
> + if (ret)
> + break;
> + ret = sdp_clrset(state, ADV748X_SDP_FRP, ADV748X_SDP_FRP_MASK,
> + enable ? ctrl->val - 1 : 0);
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + return ret;
> +}
> +
> +static const struct v4l2_ctrl_ops adv748x_afe_ctrl_ops = {
> + .s_ctrl = adv748x_afe_s_ctrl,
> +};
> +
> +static int adv748x_afe_init_controls(struct adv748x_afe *afe)
> +{
> + struct adv748x_state *state = adv748x_afe_to_state(afe);
> +
> + v4l2_ctrl_handler_init(&afe->ctrl_hdl, 5);
> +
> + /* Use our mutex for the controls */
> + afe->ctrl_hdl.lock = &state->mutex;
> +
> + v4l2_ctrl_new_std(&afe->ctrl_hdl, &adv748x_afe_ctrl_ops,
> + V4L2_CID_BRIGHTNESS, ADV748X_SDP_BRI_MIN,
> + ADV748X_SDP_BRI_MAX, 1, ADV748X_SDP_BRI_DEF);
> + v4l2_ctrl_new_std(&afe->ctrl_hdl, &adv748x_afe_ctrl_ops,
> + V4L2_CID_CONTRAST, ADV748X_SDP_CON_MIN,
> + ADV748X_SDP_CON_MAX, 1, ADV748X_SDP_CON_DEF);
> + v4l2_ctrl_new_std(&afe->ctrl_hdl, &adv748x_afe_ctrl_ops,
> + V4L2_CID_SATURATION, ADV748X_SDP_SAT_MIN,
> + ADV748X_SDP_SAT_MAX, 1, ADV748X_SDP_SAT_DEF);
> + v4l2_ctrl_new_std(&afe->ctrl_hdl, &adv748x_afe_ctrl_ops,
> + V4L2_CID_HUE, ADV748X_SDP_HUE_MIN,
> + ADV748X_SDP_HUE_MAX, 1, ADV748X_SDP_HUE_DEF);
> +
> + v4l2_ctrl_new_std_menu_items(&afe->ctrl_hdl, &adv748x_afe_ctrl_ops,
> + V4L2_CID_TEST_PATTERN,
> + ARRAY_SIZE(afe_ctrl_frp_menu) - 1,
> + 0, 0, afe_ctrl_frp_menu);
> +
> + afe->sd.ctrl_handler = &afe->ctrl_hdl;
> + if (afe->ctrl_hdl.error) {
> + v4l2_ctrl_handler_free(&afe->ctrl_hdl);
> + return afe->ctrl_hdl.error;
> + }
> +
> + return v4l2_ctrl_handler_setup(&afe->ctrl_hdl);
> +}
> +
> +int adv748x_afe_init(struct adv748x_afe *afe)
> +{
> + struct adv748x_state *state = adv748x_afe_to_state(afe);
> + int ret;
> + unsigned int i;
> +
> + afe->input = 0;
> + afe->streaming = false;
> + afe->curr_norm = V4L2_STD_NTSC_M;
> +
> + adv748x_subdev_init(&afe->sd, state, &adv748x_afe_ops,
> + MEDIA_ENT_F_ATV_DECODER, "afe");
> +
> + /* Identify the first connector found as a default input if set */
> + for (i = ADV748X_PORT_AIN0; i <= ADV748X_PORT_AIN7; i++) {
> + /* Inputs and ports are 1-indexed to match the data sheet */
> + if (state->endpoints[i]) {
> + afe->input = i;
> + break;
> + }
> + }
> +
> + adv748x_afe_s_input(afe, afe->input);
> +
> + adv_dbg(state, "AFE Default input set to %d\n", afe->input);
> +
> + /* Entity pads and sinks are 0-indexed to match the pads */
> + for (i = ADV748X_AFE_SINK_AIN0; i <= ADV748X_AFE_SINK_AIN7; i++)
> + afe->pads[i].flags = MEDIA_PAD_FL_SINK;
> +
> + afe->pads[ADV748X_AFE_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
> +
> + ret = media_entity_pads_init(&afe->sd.entity, ADV748X_AFE_NR_PADS,
> + afe->pads);
> + if (ret)
> + return ret;
> +
> + ret = adv748x_afe_init_controls(afe);
> + if (ret)
> + goto error;
> +
> + return 0;
> +
> +error:
> + media_entity_cleanup(&afe->sd.entity);
> +
> + return ret;
> +}
> +
> +void adv748x_afe_cleanup(struct adv748x_afe *afe)
> +{
> + v4l2_device_unregister_subdev(&afe->sd);
> + media_entity_cleanup(&afe->sd.entity);
> + v4l2_ctrl_handler_free(&afe->ctrl_hdl);
> +}
> diff --git a/drivers/media/i2c/adv748x/adv748x-core.c b/drivers/media/i2c/adv748x/adv748x-core.c
> new file mode 100644
> index 000000000000..aeb6ae80cb18
> --- /dev/null
> +++ b/drivers/media/i2c/adv748x/adv748x-core.c
> @@ -0,0 +1,832 @@
> +/*
> + * Driver for Analog Devices ADV748X HDMI receiver with AFE
> + *
> + * Copyright (C) 2017 Renesas Electronics Corp.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + *
> + * Authors:
> + * Koji Matsuoka <koji.matsuoka.xm@...esas.com>
> + * Niklas Söderlund <niklas.soderlund@...natech.se>
> + * Kieran Bingham <kieran.bingham@...asonboard.com>
> + */
> +
> +#include <linux/delay.h>
> +#include <linux/errno.h>
> +#include <linux/i2c.h>
> +#include <linux/module.h>
> +#include <linux/mutex.h>
> +#include <linux/of_graph.h>
> +#include <linux/regmap.h>
> +#include <linux/slab.h>
> +#include <linux/v4l2-dv-timings.h>
> +
> +#include <media/v4l2-ctrls.h>
> +#include <media/v4l2-device.h>
> +#include <media/v4l2-dv-timings.h>
> +#include <media/v4l2-ioctl.h>
> +
> +#include "adv748x.h"
> +
> +/* -----------------------------------------------------------------------------
> + * Register manipulation
> + */
> +
> +static const struct regmap_config adv748x_regmap_cnf[] = {
> + {
> + .name = "io",
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = 0xff,
> + .cache_type = REGCACHE_NONE,
> + },
> + {
> + .name = "dpll",
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = 0xff,
> + .cache_type = REGCACHE_NONE,
> + },
> + {
> + .name = "cp",
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = 0xff,
> + .cache_type = REGCACHE_NONE,
> + },
> + {
> + .name = "hdmi",
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = 0xff,
> + .cache_type = REGCACHE_NONE,
> + },
> + {
> + .name = "edid",
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = 0xff,
> + .cache_type = REGCACHE_NONE,
> + },
> + {
> + .name = "repeater",
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = 0xff,
> + .cache_type = REGCACHE_NONE,
> + },
> + {
> + .name = "infoframe",
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = 0xff,
> + .cache_type = REGCACHE_NONE,
> + },
> + {
> + .name = "cec",
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = 0xff,
> + .cache_type = REGCACHE_NONE,
> + },
> + {
> + .name = "sdp",
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = 0xff,
> + .cache_type = REGCACHE_NONE,
> + },
> +
> + {
> + .name = "txb",
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = 0xff,
> + .cache_type = REGCACHE_NONE,
> + },
> + {
> + .name = "txa",
> + .reg_bits = 8,
> + .val_bits = 8,
> +
> + .max_register = 0xff,
> + .cache_type = REGCACHE_NONE,
> + },
> +};
> +
> +static int adv748x_configure_regmap(struct adv748x_state *state, int region)
> +{
> + int err;
> +
> + if (!state->i2c_clients[region])
> + return -ENODEV;
> +
> + state->regmap[region] =
> + devm_regmap_init_i2c(state->i2c_clients[region],
> + &adv748x_regmap_cnf[region]);
> +
> + if (IS_ERR(state->regmap[region])) {
> + err = PTR_ERR(state->regmap[region]);
> + adv_err(state,
> + "Error initializing regmap %d with error %d\n",
> + region, err);
> + return -EINVAL;
> + }
> +
> + return 0;
> +}
> +
> +/* Default addresses for the I2C pages */
> +static int adv748x_i2c_addresses[ADV748X_PAGE_MAX] = {
> + ADV748X_I2C_IO,
> + ADV748X_I2C_DPLL,
> + ADV748X_I2C_CP,
> + ADV748X_I2C_HDMI,
> + ADV748X_I2C_EDID,
> + ADV748X_I2C_REPEATER,
> + ADV748X_I2C_INFOFRAME,
> + ADV748X_I2C_CEC,
> + ADV748X_I2C_SDP,
> + ADV748X_I2C_TXB,
> + ADV748X_I2C_TXA,
> +};
> +
> +static int adv748x_read_check(struct adv748x_state *state,
> + int client_page, u8 reg)
> +{
> + struct i2c_client *client = state->i2c_clients[client_page];
> + int err;
> + unsigned int val;
> +
> + err = regmap_read(state->regmap[client_page], reg, &val);
> +
> + if (err) {
> + adv_err(state, "error reading %02x, %02x\n",
> + client->addr, reg);
> + return err;
> + }
> +
> + return val;
> +}
> +
> +int adv748x_read(struct adv748x_state *state, u8 page, u8 reg)
> +{
> + return adv748x_read_check(state, page, reg);
> +}
> +
> +int adv748x_write(struct adv748x_state *state, u8 page, u8 reg, u8 value)
> +{
> + return regmap_write(state->regmap[page], reg, value);
> +}
> +
> +/* adv748x_write_block(): Write raw data with a maximum of I2C_SMBUS_BLOCK_MAX
> + * size to one or more registers.
> + *
> + * A value of zero will be returned on success, a negative errno will
> + * be returned in error cases.
> + */
> +int adv748x_write_block(struct adv748x_state *state, int client_page,
> + unsigned int init_reg, const void *val,
> + size_t val_len)
> +{
> + struct regmap *regmap = state->regmap[client_page];
> +
> + if (val_len > I2C_SMBUS_BLOCK_MAX)
> + val_len = I2C_SMBUS_BLOCK_MAX;
> +
> + return regmap_raw_write(regmap, init_reg, val, val_len);
> +}
> +
> +static struct i2c_client *adv748x_dummy_client(struct adv748x_state *state,
> + u8 addr, u8 io_reg)
> +{
> + struct i2c_client *client = state->client;
> +
> + if (addr)
> + io_write(state, io_reg, addr << 1);
> +
> + return i2c_new_dummy(client->adapter, io_read(state, io_reg) >> 1);
> +}
> +
> +static void adv748x_unregister_clients(struct adv748x_state *state)
> +{
> + unsigned int i;
> +
> + for (i = 1; i < ARRAY_SIZE(state->i2c_clients); ++i) {
> + if (state->i2c_clients[i])
> + i2c_unregister_device(state->i2c_clients[i]);
> + }
> +}
> +
> +static int adv748x_initialise_clients(struct adv748x_state *state)
> +{
> + int i;
> + int ret;
> +
> + for (i = ADV748X_PAGE_DPLL; i < ADV748X_PAGE_MAX; ++i) {
> + state->i2c_clients[i] =
> + adv748x_dummy_client(state, adv748x_i2c_addresses[i],
> + ADV748X_IO_SLAVE_ADDR_BASE + i);
> + if (state->i2c_clients[i] == NULL) {
> + adv_err(state, "failed to create i2c client %u\n", i);
> + return -ENOMEM;
> + }
> +
> + ret = adv748x_configure_regmap(state, i);
> + if (ret)
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +/**
> + * struct adv748x_reg_value - Register write instruction
> + * @page: Regmap page identifier
> + * @reg: I2C register
> + * @value: value to write to @page at @reg
> + */
> +struct adv748x_reg_value {
> + u8 page;
> + u8 reg;
> + u8 value;
> +};
> +
> +static int adv748x_write_regs(struct adv748x_state *state,
> + const struct adv748x_reg_value *regs)
> +{
> + int ret;
> +
> + while (regs->page != ADV748X_PAGE_EOR) {
> + if (regs->page == ADV748X_PAGE_WAIT) {
> + msleep(regs->value);
> + } else {
> + ret = adv748x_write(state, regs->page, regs->reg,
> + regs->value);
> + if (ret < 0) {
> + adv_err(state,
> + "Error regs page: 0x%02x reg: 0x%02x\n",
> + regs->page, regs->reg);
> + return ret;
> + }
> + }
> + regs++;
> + }
> +
> + return 0;
> +}
> +
> +/* -----------------------------------------------------------------------------
> + * TXA and TXB
> + */
> +
> +static const struct adv748x_reg_value adv748x_power_up_txa_4lane[] = {
> +
> + {ADV748X_PAGE_TXA, 0x00, 0x84}, /* Enable 4-lane MIPI */
> + {ADV748X_PAGE_TXA, 0x00, 0xa4}, /* Set Auto DPHY Timing */
> +
> + {ADV748X_PAGE_TXA, 0x31, 0x82}, /* ADI Required Write */
> + {ADV748X_PAGE_TXA, 0x1e, 0x40}, /* ADI Required Write */
> + {ADV748X_PAGE_TXA, 0xda, 0x01}, /* i2c_mipi_pll_en - 1'b1 */
> + {ADV748X_PAGE_WAIT, 0x00, 0x02},/* delay 2 */
> + {ADV748X_PAGE_TXA, 0x00, 0x24 },/* Power-up CSI-TX */
> + {ADV748X_PAGE_WAIT, 0x00, 0x01},/* delay 1 */
> + {ADV748X_PAGE_TXA, 0xc1, 0x2b}, /* ADI Required Write */
> + {ADV748X_PAGE_WAIT, 0x00, 0x01},/* delay 1 */
> + {ADV748X_PAGE_TXA, 0x31, 0x80}, /* ADI Required Write */
> +
> + {ADV748X_PAGE_EOR, 0xff, 0xff} /* End of register table */
> +};
> +
> +static const struct adv748x_reg_value adv748x_power_down_txa_4lane[] = {
> +
> + {ADV748X_PAGE_TXA, 0x31, 0x82}, /* ADI Required Write */
> + {ADV748X_PAGE_TXA, 0x1e, 0x00}, /* ADI Required Write */
> + {ADV748X_PAGE_TXA, 0x00, 0x84}, /* Enable 4-lane MIPI */
> + {ADV748X_PAGE_TXA, 0xda, 0x01}, /* i2c_mipi_pll_en - 1'b1 */
> + {ADV748X_PAGE_TXA, 0xc1, 0x3b}, /* ADI Required Write */
> +
> + {ADV748X_PAGE_EOR, 0xff, 0xff} /* End of register table */
> +};
> +
> +static const struct adv748x_reg_value adv748x_power_up_txb_1lane[] = {
> +
> + {ADV748X_PAGE_TXB, 0x00, 0x81}, /* Enable 1-lane MIPI */
> + {ADV748X_PAGE_TXB, 0x00, 0xa1}, /* Set Auto DPHY Timing */
> +
> + {ADV748X_PAGE_TXB, 0x31, 0x82}, /* ADI Required Write */
> + {ADV748X_PAGE_TXB, 0x1e, 0x40}, /* ADI Required Write */
> + {ADV748X_PAGE_TXB, 0xda, 0x01}, /* i2c_mipi_pll_en - 1'b1 */
> + {ADV748X_PAGE_WAIT, 0x00, 0x02},/* delay 2 */
> + {ADV748X_PAGE_TXB, 0x00, 0x21 },/* Power-up CSI-TX */
> + {ADV748X_PAGE_WAIT, 0x00, 0x01},/* delay 1 */
> + {ADV748X_PAGE_TXB, 0xc1, 0x2b}, /* ADI Required Write */
> + {ADV748X_PAGE_WAIT, 0x00, 0x01},/* delay 1 */
> + {ADV748X_PAGE_TXB, 0x31, 0x80}, /* ADI Required Write */
> +
> + {ADV748X_PAGE_EOR, 0xff, 0xff} /* End of register table */
> +};
> +
> +static const struct adv748x_reg_value adv748x_power_down_txb_1lane[] = {
> +
> + {ADV748X_PAGE_TXB, 0x31, 0x82}, /* ADI Required Write */
> + {ADV748X_PAGE_TXB, 0x1e, 0x00}, /* ADI Required Write */
> + {ADV748X_PAGE_TXB, 0x00, 0x81}, /* Enable 4-lane MIPI */
> + {ADV748X_PAGE_TXB, 0xda, 0x01}, /* i2c_mipi_pll_en - 1'b1 */
> + {ADV748X_PAGE_TXB, 0xc1, 0x3b}, /* ADI Required Write */
> +
> + {ADV748X_PAGE_EOR, 0xff, 0xff} /* End of register table */
> +};
> +
> +int adv748x_txa_power(struct adv748x_state *state, bool on)
> +{
> + int val;
> +
> + val = txa_read(state, ADV748X_CSI_FS_AS_LS);
> + if (val < 0)
> + return val;
> +
> + /*
> + * This test against BIT(6) is not documented by the datasheet, but was
> + * specified in the downstream driver.
> + * Track with a WARN_ONCE to determine if it is ever set by HW.
> + */
> + WARN_ONCE((on && val & ADV748X_CSI_FS_AS_LS_UNKNOWN),
> + "Enabling with unknown bit set");
> +
> + if (on)
> + return adv748x_write_regs(state, adv748x_power_up_txa_4lane);
> +
> + return adv748x_write_regs(state, adv748x_power_down_txa_4lane);
> +}
> +
> +int adv748x_txb_power(struct adv748x_state *state, bool on)
> +{
> + int val;
> +
> + val = txb_read(state, ADV748X_CSI_FS_AS_LS);
> + if (val < 0)
> + return val;
> +
> + /*
> + * This test against BIT(6) is not documented by the datasheet, but was
> + * specified in the downstream driver.
> + * Track with a WARN_ONCE to determine if it is ever set by HW.
> + */
> + WARN_ONCE((on && val & ADV748X_CSI_FS_AS_LS_UNKNOWN),
> + "Enabling with unknown bit set");
> +
> + if (on)
> + return adv748x_write_regs(state, adv748x_power_up_txb_1lane);
> +
> + return adv748x_write_regs(state, adv748x_power_down_txb_1lane);
> +}
> +
> +/* -----------------------------------------------------------------------------
> + * Media Operations
> + */
> +
> +static const struct media_entity_operations adv748x_media_ops = {
> + .link_validate = v4l2_subdev_link_validate,
> +};
> +
> +/* -----------------------------------------------------------------------------
> + * HW setup
> + */
> +
> +static const struct adv748x_reg_value adv748x_sw_reset[] = {
> +
> + {ADV748X_PAGE_IO, 0xff, 0xff}, /* SW reset */
> + {ADV748X_PAGE_WAIT, 0x00, 0x05},/* delay 5 */
> + {ADV748X_PAGE_IO, 0x01, 0x76}, /* ADI Required Write */
> + {ADV748X_PAGE_IO, 0xf2, 0x01}, /* Enable I2C Read Auto-Increment */
> + {ADV748X_PAGE_EOR, 0xff, 0xff} /* End of register table */
> +};
> +
> +static const struct adv748x_reg_value adv748x_set_slave_address[] = {
> + {ADV748X_PAGE_IO, 0xf3, ADV748X_I2C_DPLL << 1},
> + {ADV748X_PAGE_IO, 0xf4, ADV748X_I2C_CP << 1},
> + {ADV748X_PAGE_IO, 0xf5, ADV748X_I2C_HDMI << 1},
> + {ADV748X_PAGE_IO, 0xf6, ADV748X_I2C_EDID << 1},
> + {ADV748X_PAGE_IO, 0xf7, ADV748X_I2C_REPEATER << 1},
> + {ADV748X_PAGE_IO, 0xf8, ADV748X_I2C_INFOFRAME << 1},
> + {ADV748X_PAGE_IO, 0xfa, ADV748X_I2C_CEC << 1},
> + {ADV748X_PAGE_IO, 0xfb, ADV748X_I2C_SDP << 1},
> + {ADV748X_PAGE_IO, 0xfc, ADV748X_I2C_TXB << 1},
> + {ADV748X_PAGE_IO, 0xfd, ADV748X_I2C_TXA << 1},
> + {ADV748X_PAGE_EOR, 0xff, 0xff} /* End of register table */
> +};
> +
> +/* Supported Formats For Script Below */
> +/* - 01-29 HDMI to MIPI TxA CSI 4-Lane - RGB888: */
> +static const struct adv748x_reg_value adv748x_init_txa_4lane[] = {
> + /* Disable chip powerdown & Enable HDMI Rx block */
> + {ADV748X_PAGE_IO, 0x00, 0x40},
> +
> + {ADV748X_PAGE_REPEATER, 0x40, 0x83}, /* Enable HDCP 1.1 */
> +
> + {ADV748X_PAGE_HDMI, 0x00, 0x08},/* Foreground Channel = A */
> + {ADV748X_PAGE_HDMI, 0x98, 0xff},/* ADI Required Write */
> + {ADV748X_PAGE_HDMI, 0x99, 0xa3},/* ADI Required Write */
> + {ADV748X_PAGE_HDMI, 0x9a, 0x00},/* ADI Required Write */
> + {ADV748X_PAGE_HDMI, 0x9b, 0x0a},/* ADI Required Write */
> + {ADV748X_PAGE_HDMI, 0x9d, 0x40},/* ADI Required Write */
> + {ADV748X_PAGE_HDMI, 0xcb, 0x09},/* ADI Required Write */
> + {ADV748X_PAGE_HDMI, 0x3d, 0x10},/* ADI Required Write */
> + {ADV748X_PAGE_HDMI, 0x3e, 0x7b},/* ADI Required Write */
> + {ADV748X_PAGE_HDMI, 0x3f, 0x5e},/* ADI Required Write */
> + {ADV748X_PAGE_HDMI, 0x4e, 0xfe},/* ADI Required Write */
> + {ADV748X_PAGE_HDMI, 0x4f, 0x18},/* ADI Required Write */
> + {ADV748X_PAGE_HDMI, 0x57, 0xa3},/* ADI Required Write */
> + {ADV748X_PAGE_HDMI, 0x58, 0x04},/* ADI Required Write */
> + {ADV748X_PAGE_HDMI, 0x85, 0x10},/* ADI Required Write */
> +
> + {ADV748X_PAGE_HDMI, 0x83, 0x00},/* Enable All Terminations */
> + {ADV748X_PAGE_HDMI, 0xa3, 0x01},/* ADI Required Write */
> + {ADV748X_PAGE_HDMI, 0xbe, 0x00},/* ADI Required Write */
> +
> + {ADV748X_PAGE_HDMI, 0x6c, 0x01},/* HPA Manual Enable */
> + {ADV748X_PAGE_HDMI, 0xf8, 0x01},/* HPA Asserted */
> + {ADV748X_PAGE_HDMI, 0x0f, 0x00},/* Audio Mute Speed Set to Fastest */
> + /* (Smallest Step Size) */
> +
> + {ADV748X_PAGE_IO, 0x04, 0x02}, /* RGB Out of CP */
> + {ADV748X_PAGE_IO, 0x12, 0xf0}, /* CSC Depends on ip Packets, SDR 444 */
> + {ADV748X_PAGE_IO, 0x17, 0x80}, /* Luma & Chroma can reach 254d */
> + {ADV748X_PAGE_IO, 0x03, 0x86}, /* CP-Insert_AV_Code */
> +
> + {ADV748X_PAGE_CP, 0x7c, 0x00}, /* ADI Required Write */
> +
> + {ADV748X_PAGE_IO, 0x0c, 0xe0}, /* Enable LLC_DLL & Double LLC Timing */
> + {ADV748X_PAGE_IO, 0x0e, 0xdd}, /* LLC/PIX/SPI PINS TRISTATED AUD */
> + /* Outputs Enabled */
> + {ADV748X_PAGE_IO, 0x10, 0xa0}, /* Enable 4-lane CSI Tx & Pixel Port */
> +
> + {ADV748X_PAGE_TXA, 0x00, 0x84}, /* Enable 4-lane MIPI */
> + {ADV748X_PAGE_TXA, 0x00, 0xa4}, /* Set Auto DPHY Timing */
> + {ADV748X_PAGE_TXA, 0xdb, 0x10}, /* ADI Required Write */
> + {ADV748X_PAGE_TXA, 0xd6, 0x07}, /* ADI Required Write */
> + {ADV748X_PAGE_TXA, 0xc4, 0x0a}, /* ADI Required Write */
> + {ADV748X_PAGE_TXA, 0x71, 0x33}, /* ADI Required Write */
> + {ADV748X_PAGE_TXA, 0x72, 0x11}, /* ADI Required Write */
> + {ADV748X_PAGE_TXA, 0xf0, 0x00}, /* i2c_dphy_pwdn - 1'b0 */
> +
> + {ADV748X_PAGE_TXA, 0x31, 0x82}, /* ADI Required Write */
> + {ADV748X_PAGE_TXA, 0x1e, 0x40}, /* ADI Required Write */
> + {ADV748X_PAGE_TXA, 0xda, 0x01}, /* i2c_mipi_pll_en - 1'b1 */
> + {ADV748X_PAGE_WAIT, 0x00, 0x02},/* delay 2 */
> + {ADV748X_PAGE_TXA, 0x00, 0x24 },/* Power-up CSI-TX */
> + {ADV748X_PAGE_WAIT, 0x00, 0x01},/* delay 1 */
> + {ADV748X_PAGE_TXA, 0xc1, 0x2b}, /* ADI Required Write */
> + {ADV748X_PAGE_WAIT, 0x00, 0x01},/* delay 1 */
> + {ADV748X_PAGE_TXA, 0x31, 0x80}, /* ADI Required Write */
> +
> + {ADV748X_PAGE_EOR, 0xff, 0xff} /* End of register table */
> +};
> +
> +/* 02-01 Analog CVBS to MIPI TX-B CSI 1-Lane - */
> +/* Autodetect CVBS Single Ended In Ain 1 - MIPI Out */
> +static const struct adv748x_reg_value adv748x_init_txb_1lane[] = {
> +
> + {ADV748X_PAGE_IO, 0x00, 0x30}, /* Disable chip powerdown Rx */
> + {ADV748X_PAGE_IO, 0xf2, 0x01}, /* Enable I2C Read Auto-Increment */
> +
> + {ADV748X_PAGE_IO, 0x0e, 0xff}, /* LLC/PIX/AUD/SPI PINS TRISTATED */
> +
> + {ADV748X_PAGE_SDP, 0x0f, 0x00}, /* Exit Power Down Mode */
> + {ADV748X_PAGE_SDP, 0x52, 0xcd}, /* ADI Required Write */
> +
> + {ADV748X_PAGE_SDP, 0x0e, 0x80}, /* ADI Required Write */
> + {ADV748X_PAGE_SDP, 0x9c, 0x00}, /* ADI Required Write */
> + {ADV748X_PAGE_SDP, 0x9c, 0xff}, /* ADI Required Write */
> + {ADV748X_PAGE_SDP, 0x0e, 0x00}, /* ADI Required Write */
> +
> + /* ADI recommended writes for improved video quality */
> + {ADV748X_PAGE_SDP, 0x80, 0x51}, /* ADI Required Write */
> + {ADV748X_PAGE_SDP, 0x81, 0x51}, /* ADI Required Write */
> + {ADV748X_PAGE_SDP, 0x82, 0x68}, /* ADI Required Write */
> +
> + {ADV748X_PAGE_SDP, 0x03, 0x42}, /* Tri-S Output , PwrDwn 656 pads */
> + {ADV748X_PAGE_SDP, 0x04, 0xb5}, /* ITU-R BT.656-4 compatible */
> + {ADV748X_PAGE_SDP, 0x13, 0x00}, /* ADI Required Write */
> +
> + {ADV748X_PAGE_SDP, 0x17, 0x41}, /* Select SH1 */
> + {ADV748X_PAGE_SDP, 0x31, 0x12}, /* ADI Required Write */
> + {ADV748X_PAGE_SDP, 0xe6, 0x4f}, /* V bit end pos manually in NTSC */
> +
> + /* Enable 1-Lane MIPI Tx, */
> + /* enable pixel output and route SD through Pixel port */
> + {ADV748X_PAGE_IO, 0x10, 0x70},
> +
> + {ADV748X_PAGE_TXB, 0x00, 0x81}, /* Enable 1-lane MIPI */
> + {ADV748X_PAGE_TXB, 0x00, 0xa1}, /* Set Auto DPHY Timing */
> + {ADV748X_PAGE_TXB, 0xd2, 0x40}, /* ADI Required Write */
> + {ADV748X_PAGE_TXB, 0xc4, 0x0a}, /* ADI Required Write */
> + {ADV748X_PAGE_TXB, 0x71, 0x33}, /* ADI Required Write */
> + {ADV748X_PAGE_TXB, 0x72, 0x11}, /* ADI Required Write */
> + {ADV748X_PAGE_TXB, 0xf0, 0x00}, /* i2c_dphy_pwdn - 1'b0 */
> + {ADV748X_PAGE_TXB, 0x31, 0x82}, /* ADI Required Write */
> + {ADV748X_PAGE_TXB, 0x1e, 0x40}, /* ADI Required Write */
> + {ADV748X_PAGE_TXB, 0xda, 0x01}, /* i2c_mipi_pll_en - 1'b1 */
> +
> + {ADV748X_PAGE_WAIT, 0x00, 0x02},/* delay 2 */
> + {ADV748X_PAGE_TXB, 0x00, 0x21 },/* Power-up CSI-TX */
> + {ADV748X_PAGE_WAIT, 0x00, 0x01},/* delay 1 */
> + {ADV748X_PAGE_TXB, 0xc1, 0x2b}, /* ADI Required Write */
> + {ADV748X_PAGE_WAIT, 0x00, 0x01},/* delay 1 */
> + {ADV748X_PAGE_TXB, 0x31, 0x80}, /* ADI Required Write */
> +
> + {ADV748X_PAGE_EOR, 0xff, 0xff} /* End of register table */
> +};
> +
> +static int adv748x_reset(struct adv748x_state *state)
> +{
> + int ret;
> +
> + ret = adv748x_write_regs(state, adv748x_sw_reset);
> + if (ret < 0)
> + return ret;
> +
> + ret = adv748x_write_regs(state, adv748x_set_slave_address);
> + if (ret < 0)
> + return ret;
> +
> + /* Init and power down TXA */
> + ret = adv748x_write_regs(state, adv748x_init_txa_4lane);
> + if (ret)
> + return ret;
> +
> + adv748x_txa_power(state, 0);
> +
> + /* Init and power down TXB */
> + ret = adv748x_write_regs(state, adv748x_init_txb_1lane);
> + if (ret)
> + return ret;
> +
> + adv748x_txb_power(state, 0);
> +
> + /* Disable chip powerdown & Enable HDMI Rx block */
> + io_write(state, ADV748X_IO_PD, ADV748X_IO_PD_RX_EN);
> +
> + /* Enable 4-lane CSI Tx & Pixel Port */
> + io_write(state, ADV748X_IO_10, ADV748X_IO_10_CSI4_EN |
> + ADV748X_IO_10_CSI1_EN |
> + ADV748X_IO_10_PIX_OUT_EN);
> +
> + /* Use vid_std and v_freq as freerun resolution for CP */
> + cp_clrset(state, ADV748X_CP_CLMP_POS, ADV748X_CP_CLMP_POS_DIS_AUTO,
> + ADV748X_CP_CLMP_POS_DIS_AUTO);
> +
> + return 0;
> +}
> +
> +static int adv748x_identify_chip(struct adv748x_state *state)
> +{
> + int msb, lsb;
> +
> + lsb = io_read(state, ADV748X_IO_CHIP_REV_ID_1);
> + msb = io_read(state, ADV748X_IO_CHIP_REV_ID_2);
> +
> + if (lsb < 0 || msb < 0) {
> + adv_err(state, "Failed to read chip revision\n");
> + return -EIO;
> + }
> +
> + adv_info(state, "chip found @ 0x%02x revision %02x%02x\n",
> + state->client->addr << 1, lsb, msb);
> +
> + return 0;
> +}
> +
> +/* -----------------------------------------------------------------------------
> + * i2c driver
> + */
> +
> +void adv748x_subdev_init(struct v4l2_subdev *sd, struct adv748x_state *state,
> + const struct v4l2_subdev_ops *ops, u32 function,
> + const char *ident)
> +{
> + v4l2_subdev_init(sd, ops);
> + sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
> +
> + /* the owner is the same as the i2c_client's driver owner */
> + sd->owner = state->dev->driver->owner;
> + sd->dev = state->dev;
> +
> + v4l2_set_subdevdata(sd, state);
> +
> + /* initialize name */
> + snprintf(sd->name, sizeof(sd->name), "%s %d-%04x %s",
> + state->dev->driver->name,
> + i2c_adapter_id(state->client->adapter),
> + state->client->addr, ident);
> +
> + sd->entity.function = function;
> + sd->entity.ops = &adv748x_media_ops;
> +}
> +
> +static int adv748x_parse_dt(struct adv748x_state *state)
> +{
> + struct device_node *ep_np = NULL;
> + struct of_endpoint ep;
> + bool found = false;
> +
> + for_each_endpoint_of_node(state->dev->of_node, ep_np) {
> + of_graph_parse_endpoint(ep_np, &ep);
> + adv_info(state, "Endpoint %s on port %d",
> + of_node_full_name(ep.local_node),
> + ep.port);
> +
> + if (ep.port >= ADV748X_PORT_MAX) {
> + adv_err(state, "Invalid endpoint %s on port %d",
> + of_node_full_name(ep.local_node),
> + ep.port);
> +
> + continue;
> + }
> +
> + if (state->endpoints[ep.port]) {
> + adv_err(state,
> + "Multiple port endpoints are not supported");
> + continue;
> + }
> +
> + of_node_get(ep_np);
> + state->endpoints[ep.port] = ep_np;
> +
> + found = true;
> + }
> +
> + return found ? 0 : -ENODEV;
> +}
> +
> +static void adv748x_dt_cleanup(struct adv748x_state *state)
> +{
> + unsigned int i;
> +
> + for (i = 0; i < ADV748X_PORT_MAX; i++)
> + of_node_put(state->endpoints[i]);
> +}
> +
> +static int adv748x_probe(struct i2c_client *client,
> + const struct i2c_device_id *id)
> +{
> + struct adv748x_state *state;
> + int ret;
> +
> + /* Check if the adapter supports the needed features */
> + if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
> + return -EIO;
> +
> + state = kzalloc(sizeof(struct adv748x_state), GFP_KERNEL);
> + if (!state)
> + return -ENOMEM;
> +
> + mutex_init(&state->mutex);
> +
> + state->dev = &client->dev;
> + state->client = client;
> + state->i2c_clients[ADV748X_PAGE_IO] = client;
> + i2c_set_clientdata(client, state);
> +
> + /* Discover and process ports declared by the Device tree endpoints */
> + ret = adv748x_parse_dt(state);
> + if (ret) {
> + adv_err(state, "Failed to parse device tree");
> + goto err_free_mutex;
> + }
> +
> + /* Configure IO Regmap region */
> + ret = adv748x_configure_regmap(state, ADV748X_PAGE_IO);
> + if (ret) {
> + adv_err(state, "Error configuring IO regmap region");
> + goto err_cleanup_dt;
> + }
> +
> + ret = adv748x_identify_chip(state);
> + if (ret) {
> + adv_err(state, "Failed to identify chip");
> + goto err_cleanup_clients;
> + }
> +
> + /* Configure remaining pages as I2C clients with regmap access */
> + ret = adv748x_initialise_clients(state);
> + if (ret) {
> + adv_err(state, "Failed to setup client regmap pages");
> + goto err_cleanup_clients;
> + }
> +
> + /* SW reset ADV748X to its default values */
> + ret = adv748x_reset(state);
> + if (ret) {
> + adv_err(state, "Failed to reset hardware");
> + goto err_cleanup_clients;
> + }
> +
> + /* Initialise HDMI */
> + ret = adv748x_hdmi_init(&state->hdmi);
> + if (ret) {
> + adv_err(state, "Failed to probe HDMI");
> + goto err_cleanup_clients;
> + }
> +
> + /* Initialise AFE */
> + ret = adv748x_afe_init(&state->afe);
> + if (ret) {
> + adv_err(state, "Failed to probe AFE");
> + goto err_cleanup_hdmi;
> + }
> +
> + /* Initialise TXA */
> + ret = adv748x_csi2_init(state, &state->txa);
> + if (ret) {
> + adv_err(state, "Failed to probe TXA");
> + goto err_cleanup_afe;
> + }
> +
> + /* Initialise TXB */
> + ret = adv748x_csi2_init(state, &state->txb);
> + if (ret) {
> + adv_err(state, "Failed to probe TXB");
> + goto err_cleanup_txa;
> + }
> +
> + return 0;
> +
> +err_cleanup_txa:
> + adv748x_csi2_cleanup(&state->txa);
> +err_cleanup_afe:
> + adv748x_afe_cleanup(&state->afe);
> +err_cleanup_hdmi:
> + adv748x_hdmi_cleanup(&state->hdmi);
> +err_cleanup_clients:
> + adv748x_unregister_clients(state);
> +err_cleanup_dt:
> + adv748x_dt_cleanup(state);
> +err_free_mutex:
> + mutex_destroy(&state->mutex);
> + kfree(state);
> +
> + return ret;
> +}
> +
> +static int adv748x_remove(struct i2c_client *client)
> +{
> + struct adv748x_state *state = i2c_get_clientdata(client);
> +
> + adv748x_afe_cleanup(&state->afe);
> + adv748x_hdmi_cleanup(&state->hdmi);
> +
> + adv748x_csi2_cleanup(&state->txa);
> + adv748x_csi2_cleanup(&state->txb);
> +
> + adv748x_unregister_clients(state);
> + adv748x_dt_cleanup(state);
> + mutex_destroy(&state->mutex);
> +
> + kfree(state);
> +
> + return 0;
> +}
> +
> +static const struct i2c_device_id adv748x_id[] = {
> + { "adv7481", 0 },
> + { "adv7482", 0 },
> + { },
> +};
> +
> +static const struct of_device_id adv748x_of_table[] = {
> + { .compatible = "adi,adv7481", },
> + { .compatible = "adi,adv7482", },
> + { }
> +};
> +MODULE_DEVICE_TABLE(of, adv748x_of_table);
> +
> +static struct i2c_driver adv748x_driver = {
> + .driver = {
> + .name = "adv748x",
> + .of_match_table = adv748x_of_table,
> + },
> + .probe = adv748x_probe,
> + .remove = adv748x_remove,
> + .id_table = adv748x_id,
> +};
> +
> +module_i2c_driver(adv748x_driver);
> +
> +MODULE_AUTHOR("Kieran Bingham <kieran.bingham@...asonboard.com>");
> +MODULE_DESCRIPTION("ADV748X video decoder");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/media/i2c/adv748x/adv748x-csi2.c b/drivers/media/i2c/adv748x/adv748x-csi2.c
> new file mode 100644
> index 000000000000..b4fee7f52d6a
> --- /dev/null
> +++ b/drivers/media/i2c/adv748x/adv748x-csi2.c
> @@ -0,0 +1,327 @@
> +/*
> + * Driver for Analog Devices ADV748X CSI-2 Transmitter
> + *
> + * Copyright (C) 2017 Renesas Electronics Corp.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/mutex.h>
> +
> +#include <media/v4l2-ctrls.h>
> +#include <media/v4l2-device.h>
> +#include <media/v4l2-ioctl.h>
> +
> +#include "adv748x.h"
> +
> +static bool is_txa(struct adv748x_csi2 *tx)
> +{
> + return tx == &tx->state->txa;
> +}
> +
> +static int adv748x_csi2_set_virtual_channel(struct adv748x_csi2 *tx,
> + unsigned int vc)
> +{
> + return tx_write(tx, ADV748X_CSI_VC_REF, vc << ADV748X_CSI_VC_REF_SHIFT);
> +}
> +
> +/**
> + * adv748x_csi2_register_link : Register and link internal entities
> + *
> + * @tx: CSI2 private entity
> + * @v4l2_dev: Video registration device
> + * @src: Source subdevice to establish link
> + * @src_pad: Pad number of source to link to this @tx
> + *
> + * Ensure that the subdevice is registered against the v4l2_device, and link the
> + * source pad to the sink pad of the CSI2 bus entity.
> + */
> +static int adv748x_csi2_register_link(struct adv748x_csi2 *tx,
> + struct v4l2_device *v4l2_dev,
> + struct v4l2_subdev *src,
> + unsigned int src_pad)
> +{
> + int enabled = MEDIA_LNK_FL_ENABLED;
> + int ret;
> +
> + /*
> + * Dynamic linking of the AFE is not supported.
> + * Register the links as immutable.
> + */
> + enabled |= MEDIA_LNK_FL_IMMUTABLE;
> +
> + if (!src->v4l2_dev) {
> + ret = v4l2_device_register_subdev(v4l2_dev, src);
> + if (ret)
> + return ret;
> + }
> +
> + return media_create_pad_link(&src->entity, src_pad,
> + &tx->sd.entity, ADV748X_CSI2_SINK,
> + enabled);
> +}
> +
> +/* -----------------------------------------------------------------------------
> + * v4l2_subdev_internal_ops
> + *
> + * We use the internal registered operation to be able to ensure that our
> + * incremental subdevices (not connected in the forward path) can be registered
> + * against the resulting video path and media device.
> + */
> +
> +static int adv748x_csi2_registered(struct v4l2_subdev *sd)
> +{
> + struct adv748x_csi2 *tx = adv748x_sd_to_csi2(sd);
> + struct adv748x_state *state = tx->state;
> +
> + adv_dbg(state, "Registered %s (%s)", is_txa(tx) ? "TXA":"TXB",
> + sd->name);
> +
> + /*
> + * The adv748x hardware allows the AFE to route through the TXA, however
> + * this is not currently supported in this driver.
> + *
> + * Link HDMI->TXA, and AFE->TXB directly.
> + */
> + if (is_txa(tx)) {
> + return adv748x_csi2_register_link(tx, sd->v4l2_dev,
> + &state->hdmi.sd,
> + ADV748X_HDMI_SOURCE);
> + } else {
> + return adv748x_csi2_register_link(tx, sd->v4l2_dev,
> + &state->afe.sd,
> + ADV748X_AFE_SOURCE);
> + }
> +}
> +
> +static const struct v4l2_subdev_internal_ops adv748x_csi2_internal_ops = {
> + .registered = adv748x_csi2_registered,
> +};
> +
> +/* -----------------------------------------------------------------------------
> + * v4l2_subdev_video_ops
> + */
> +
> +static int adv748x_csi2_s_stream(struct v4l2_subdev *sd, int enable)
> +{
> + struct adv748x_csi2 *tx = adv748x_sd_to_csi2(sd);
> + struct v4l2_subdev *src;
> +
> + src = adv748x_get_remote_sd(&tx->pads[ADV748X_CSI2_SINK]);
> + if (!src)
> + return -EPIPE;
> +
> + return v4l2_subdev_call(src, video, s_stream, enable);
> +}
> +
> +static const struct v4l2_subdev_video_ops adv748x_csi2_video_ops = {
> + .s_stream = adv748x_csi2_s_stream,
> +};
> +
> +/* -----------------------------------------------------------------------------
> + * v4l2_subdev_pad_ops
> + *
> + * The CSI2 bus pads are ignorant to the data sizes or formats.
> + * But we must support setting the pad formats for format propagation.
> + */
> +
> +static struct v4l2_mbus_framefmt *
> +adv748x_csi2_get_pad_format(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + unsigned int pad, u32 which)
> +{
> + struct adv748x_csi2 *tx = adv748x_sd_to_csi2(sd);
> +
> + if (which == V4L2_SUBDEV_FORMAT_TRY)
> + return v4l2_subdev_get_try_format(sd, cfg, pad);
> +
> + return &tx->format;
> +}
> +
> +static int adv748x_csi2_get_format(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_format *sdformat)
> +{
> + struct adv748x_csi2 *tx = adv748x_sd_to_csi2(sd);
> + struct adv748x_state *state = tx->state;
> + struct v4l2_mbus_framefmt *mbusformat;
> +
> + mbusformat = adv748x_csi2_get_pad_format(sd, cfg, sdformat->pad,
> + sdformat->which);
> + if (!mbusformat)
> + return -EINVAL;
> +
> + mutex_lock(&state->mutex);
> +
> + sdformat->format = *mbusformat;
> +
> + mutex_unlock(&state->mutex);
> +
> + return 0;
> +}
> +
> +static int adv748x_csi2_set_format(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_format *sdformat)
> +{
> + struct adv748x_csi2 *tx = adv748x_sd_to_csi2(sd);
> + struct adv748x_state *state = tx->state;
> + struct v4l2_mbus_framefmt *mbusformat;
> + int ret = 0;
> +
> + mbusformat = adv748x_csi2_get_pad_format(sd, cfg, sdformat->pad,
> + sdformat->which);
> + if (!mbusformat)
> + return -EINVAL;
> +
> + mutex_lock(&state->mutex);
> +
> + if (sdformat->pad == ADV748X_CSI2_SOURCE) {
> + const struct v4l2_mbus_framefmt *sink_fmt;
> +
> + sink_fmt = adv748x_csi2_get_pad_format(sd, cfg,
> + ADV748X_CSI2_SINK,
> + sdformat->which);
> +
> + if (!sink_fmt) {
> + ret = -EINVAL;
> + goto unlock;
> + }
> +
> + sdformat->format = *sink_fmt;
> + }
> +
> + *mbusformat = sdformat->format;
> +
> +unlock:
> + mutex_unlock(&state->mutex);
> +
> + return ret;
> +}
> +
> +static const struct v4l2_subdev_pad_ops adv748x_csi2_pad_ops = {
> + .get_fmt = adv748x_csi2_get_format,
> + .set_fmt = adv748x_csi2_set_format,
> +};
> +
> +/* -----------------------------------------------------------------------------
> + * v4l2_subdev_ops
> + */
> +
> +static const struct v4l2_subdev_ops adv748x_csi2_ops = {
> + .video = &adv748x_csi2_video_ops,
> + .pad = &adv748x_csi2_pad_ops,
> +};
> +
> +/* -----------------------------------------------------------------------------
> + * Subdev module and controls
> + */
> +
> +int adv748x_csi2_set_pixelrate(struct v4l2_subdev *sd, s64 rate)
> +{
> + struct v4l2_ctrl *ctrl;
> +
> + ctrl = v4l2_ctrl_find(sd->ctrl_handler, V4L2_CID_PIXEL_RATE);
> + if (!ctrl)
> + return -EINVAL;
> +
> + return v4l2_ctrl_s_ctrl_int64(ctrl, rate);
> +}
> +
> +static int adv748x_csi2_s_ctrl(struct v4l2_ctrl *ctrl)
> +{
> + switch (ctrl->id) {
> + case V4L2_CID_PIXEL_RATE:
> + return 0;
> + default:
> + return -EINVAL;
> + }
> +}
> +
> +static const struct v4l2_ctrl_ops adv748x_csi2_ctrl_ops = {
> + .s_ctrl = adv748x_csi2_s_ctrl,
> +};
> +
> +static int adv748x_csi2_init_controls(struct adv748x_csi2 *tx)
> +{
> + struct v4l2_ctrl *ctrl;
> +
> + v4l2_ctrl_handler_init(&tx->ctrl_hdl, 1);
> +
> + ctrl = v4l2_ctrl_new_std(&tx->ctrl_hdl, &adv748x_csi2_ctrl_ops,
> + V4L2_CID_PIXEL_RATE, 1, INT_MAX, 1, 1);
> +
> + tx->sd.ctrl_handler = &tx->ctrl_hdl;
> + if (tx->ctrl_hdl.error) {
> + v4l2_ctrl_handler_free(&tx->ctrl_hdl);
> + return tx->ctrl_hdl.error;
> + }
> +
> + return v4l2_ctrl_handler_setup(&tx->ctrl_hdl);
> +}
> +
> +int adv748x_csi2_init(struct adv748x_state *state, struct adv748x_csi2 *tx)
> +{
> + struct device_node *ep;
> + int ret;
> +
> + /* We can not use container_of to get back to the state with two TXs */
> + tx->state = state;
> + tx->page = is_txa(tx) ? ADV748X_PAGE_TXA : ADV748X_PAGE_TXB;
> +
> + ep = state->endpoints[is_txa(tx) ? ADV748X_PORT_TXA : ADV748X_PORT_TXB];
> + if (!ep) {
> + adv_err(state, "No endpoint found for %s\n",
> + is_txa(tx) ? "txa" : "txb");
> + return -ENODEV;
> + }
> +
> + /* Initialise the virtual channel */
> + adv748x_csi2_set_virtual_channel(tx, 0);
> +
> + adv748x_subdev_init(&tx->sd, state, &adv748x_csi2_ops,
> + MEDIA_ENT_F_UNKNOWN,
> + is_txa(tx) ? "txa" : "txb");
> +
> + /* Ensure that matching is based upon the endpoint fwnodes */
> + tx->sd.fwnode = of_fwnode_handle(ep);
> +
> + /* Register internal ops for incremental subdev registration */
> + tx->sd.internal_ops = &adv748x_csi2_internal_ops;
> +
> + tx->pads[ADV748X_CSI2_SINK].flags = MEDIA_PAD_FL_SINK;
> + tx->pads[ADV748X_CSI2_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
> +
> + ret = media_entity_pads_init(&tx->sd.entity, ADV748X_CSI2_NR_PADS,
> + tx->pads);
> + if (ret)
> + return ret;
> +
> + ret = adv748x_csi2_init_controls(tx);
> + if (ret)
> + goto err_free_media;
> +
> + ret = v4l2_async_register_subdev(&tx->sd);
> + if (ret)
> + goto err_free_ctrl;
> +
> + return 0;
> +
> +err_free_ctrl:
> + v4l2_ctrl_handler_free(&tx->ctrl_hdl);
> +err_free_media:
> + media_entity_cleanup(&tx->sd.entity);
> +
> + return ret;
> +}
> +
> +void adv748x_csi2_cleanup(struct adv748x_csi2 *tx)
> +{
> + v4l2_async_unregister_subdev(&tx->sd);
> + media_entity_cleanup(&tx->sd.entity);
> + v4l2_ctrl_handler_free(&tx->ctrl_hdl);
> +}
> diff --git a/drivers/media/i2c/adv748x/adv748x-hdmi.c b/drivers/media/i2c/adv748x/adv748x-hdmi.c
> new file mode 100644
> index 000000000000..4da4253553fc
> --- /dev/null
> +++ b/drivers/media/i2c/adv748x/adv748x-hdmi.c
> @@ -0,0 +1,768 @@
> +/*
> + * Driver for Analog Devices ADV748X HDMI receiver and Component Processor (CP)
> + *
> + * Copyright (C) 2017 Renesas Electronics Corp.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/mutex.h>
> +
> +#include <media/v4l2-ctrls.h>
> +#include <media/v4l2-device.h>
> +#include <media/v4l2-dv-timings.h>
> +#include <media/v4l2-ioctl.h>
> +
> +#include <uapi/linux/v4l2-dv-timings.h>
> +
> +#include "adv748x.h"
> +
> +/* -----------------------------------------------------------------------------
> + * HDMI and CP
> + */
> +
> +#define ADV748X_HDMI_MIN_WIDTH 640
> +#define ADV748X_HDMI_MAX_WIDTH 1920
> +#define ADV748X_HDMI_MIN_HEIGHT 480
> +#define ADV748X_HDMI_MAX_HEIGHT 1200
> +
> +/* V4L2_DV_BT_CEA_720X480I59_94 - 0.5 MHz */
> +#define ADV748X_HDMI_MIN_PIXELCLOCK 13000000
> +/* V4L2_DV_BT_DMT_1600X1200P60 */
> +#define ADV748X_HDMI_MAX_PIXELCLOCK 162000000
> +
> +static const struct v4l2_dv_timings_cap adv748x_hdmi_timings_cap = {
> + .type = V4L2_DV_BT_656_1120,
> + /* keep this initialization for compatibility with GCC < 4.4.6 */
> + .reserved = { 0 },
> +
> + V4L2_INIT_BT_TIMINGS(ADV748X_HDMI_MIN_WIDTH, ADV748X_HDMI_MAX_WIDTH,
> + ADV748X_HDMI_MIN_HEIGHT, ADV748X_HDMI_MAX_HEIGHT,
> + ADV748X_HDMI_MIN_PIXELCLOCK,
> + ADV748X_HDMI_MAX_PIXELCLOCK,
> + V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_DMT,
> + V4L2_DV_BT_CAP_PROGRESSIVE)
> +};
> +
> +struct adv748x_hdmi_video_standards {
> + struct v4l2_dv_timings timings;
> + u8 vid_std;
> + u8 v_freq;
> +};
> +
> +static const struct adv748x_hdmi_video_standards
> +adv748x_hdmi_video_standards[] = {
> + { V4L2_DV_BT_CEA_720X480P59_94, 0x4a, 0x00 },
> + { V4L2_DV_BT_CEA_720X576P50, 0x4b, 0x00 },
> + { V4L2_DV_BT_CEA_1280X720P60, 0x53, 0x00 },
> + { V4L2_DV_BT_CEA_1280X720P50, 0x53, 0x01 },
> + { V4L2_DV_BT_CEA_1280X720P30, 0x53, 0x02 },
> + { V4L2_DV_BT_CEA_1280X720P25, 0x53, 0x03 },
> + { V4L2_DV_BT_CEA_1280X720P24, 0x53, 0x04 },
> + { V4L2_DV_BT_CEA_1920X1080P60, 0x5e, 0x00 },
> + { V4L2_DV_BT_CEA_1920X1080P50, 0x5e, 0x01 },
> + { V4L2_DV_BT_CEA_1920X1080P30, 0x5e, 0x02 },
> + { V4L2_DV_BT_CEA_1920X1080P25, 0x5e, 0x03 },
> + { V4L2_DV_BT_CEA_1920X1080P24, 0x5e, 0x04 },
> + /* SVGA */
> + { V4L2_DV_BT_DMT_800X600P56, 0x80, 0x00 },
> + { V4L2_DV_BT_DMT_800X600P60, 0x81, 0x00 },
> + { V4L2_DV_BT_DMT_800X600P72, 0x82, 0x00 },
> + { V4L2_DV_BT_DMT_800X600P75, 0x83, 0x00 },
> + { V4L2_DV_BT_DMT_800X600P85, 0x84, 0x00 },
> + /* SXGA */
> + { V4L2_DV_BT_DMT_1280X1024P60, 0x85, 0x00 },
> + { V4L2_DV_BT_DMT_1280X1024P75, 0x86, 0x00 },
> + /* VGA */
> + { V4L2_DV_BT_DMT_640X480P60, 0x88, 0x00 },
> + { V4L2_DV_BT_DMT_640X480P72, 0x89, 0x00 },
> + { V4L2_DV_BT_DMT_640X480P75, 0x8a, 0x00 },
> + { V4L2_DV_BT_DMT_640X480P85, 0x8b, 0x00 },
> + /* XGA */
> + { V4L2_DV_BT_DMT_1024X768P60, 0x8c, 0x00 },
> + { V4L2_DV_BT_DMT_1024X768P70, 0x8d, 0x00 },
> + { V4L2_DV_BT_DMT_1024X768P75, 0x8e, 0x00 },
> + { V4L2_DV_BT_DMT_1024X768P85, 0x8f, 0x00 },
> + /* UXGA */
> + { V4L2_DV_BT_DMT_1600X1200P60, 0x96, 0x00 },
> +};
> +
> +static void adv748x_hdmi_fill_format(struct adv748x_hdmi *hdmi,
> + struct v4l2_mbus_framefmt *fmt)
> +{
> + memset(fmt, 0, sizeof(*fmt));
> +
> + fmt->code = MEDIA_BUS_FMT_RGB888_1X24;
> + fmt->field = hdmi->timings.bt.interlaced ?
> + V4L2_FIELD_ALTERNATE : V4L2_FIELD_NONE;
> +
> + /* TODO: The colorspace depends on the AVI InfoFrame contents */
> + fmt->colorspace = V4L2_COLORSPACE_SRGB;
> +
> + fmt->width = hdmi->timings.bt.width;
> + fmt->height = hdmi->timings.bt.height;
> +}
> +
> +static void adv748x_fill_optional_dv_timings(struct v4l2_dv_timings *timings)
> +{
> + v4l2_find_dv_timings_cap(timings, &adv748x_hdmi_timings_cap,
> + 250000, NULL, NULL);
> +}
> +
> +static bool adv748x_hdmi_has_signal(struct adv748x_state *state)
> +{
> + int val;
> +
> + /* Check that VERT_FILTER and DE_REGEN is locked */
> + val = hdmi_read(state, ADV748X_HDMI_LW1);
> + return (val & ADV748X_HDMI_LW1_VERT_FILTER) &&
> + (val & ADV748X_HDMI_LW1_DE_REGEN);
> +}
> +
> +static int adv748x_hdmi_read_pixelclock(struct adv748x_state *state)
> +{
> + int a, b;
> +
> + a = hdmi_read(state, ADV748X_HDMI_TMDS_1);
> + b = hdmi_read(state, ADV748X_HDMI_TMDS_2);
> + if (a < 0 || b < 0)
> + return -ENODATA;
> +
> + /*
> + * The high 9 bits store TMDS frequency measurement in MHz
> + * The low 7 bits of TMDS_2 store the 7-bit TMDS fractional frequency
> + * measurement in 1/128 MHz
> + */
> + return ((a << 1) | (b >> 7)) * 1000000 + (b & 0x7f) * 1000000 / 128;
> +}
> +
> +/*
> + * adv748x_hdmi_set_de_timings: Adjust horizontal picture offset through DE
> + *
> + * HDMI CP uses a Data Enable synchronisation timing reference
> + *
> + * Vary the leading and trailing edge position of the DE signal output by the CP
> + * core. Values are stored as signed-twos-complement in one-pixel-clock units
> + *
> + * The start and end are shifted equally by the 10-bit shift value.
> + */
> +static void adv748x_hdmi_set_de_timings(struct adv748x_state *state, int shift)
> +{
> + u8 high, low;
> +
> + /* POS_HIGH stores bits 8 and 9 of both the start and end */
> + high = ADV748X_CP_DE_POS_HIGH_SET;
> + high |= (shift & 0x300) >> 8;
> + low = shift & 0xff;
> +
> + /* The sequence of the writes is important and must be followed */
> + cp_write(state, ADV748X_CP_DE_POS_HIGH, high);
> + cp_write(state, ADV748X_CP_DE_POS_END_LOW, low);
> +
> + high |= (shift & 0x300) >> 6;
> +
> + cp_write(state, ADV748X_CP_DE_POS_HIGH, high);
> + cp_write(state, ADV748X_CP_DE_POS_START_LOW, low);
> +}
> +
> +static int adv748x_hdmi_set_video_timings(struct adv748x_state *state,
> + const struct v4l2_dv_timings *timings)
> +{
> + const struct adv748x_hdmi_video_standards *stds =
> + adv748x_hdmi_video_standards;
> + unsigned int i;
> +
> + for (i = 0; i < ARRAY_SIZE(adv748x_hdmi_video_standards); i++) {
> + if (!v4l2_match_dv_timings(timings, &stds[i].timings, 250000,
> + false))
> + continue;
> + }
> +
> + if (i >= ARRAY_SIZE(adv748x_hdmi_video_standards))
> + return -EINVAL;
> +
> + /*
> + * When setting cp_vid_std to either 720p, 1080i, or 1080p, the video
> + * will get shifted horizontally to the left in active video mode.
> + * The de_h_start and de_h_end controls are used to centre the picture
> + * correctly
> + */
> + switch (stds[i].vid_std) {
> + case 0x53: /* 720p */
> + adv748x_hdmi_set_de_timings(state, -40);
> + break;
> + case 0x54: /* 1080i */
> + case 0x5e: /* 1080p */
> + adv748x_hdmi_set_de_timings(state, -44);
> + break;
> + default:
> + adv748x_hdmi_set_de_timings(state, 0);
> + break;
> + }
> +
> + io_write(state, ADV748X_IO_VID_STD, stds[i].vid_std);
> + io_clrset(state, ADV748X_IO_DATAPATH, ADV748X_IO_DATAPATH_VFREQ_M,
> + stds[i].v_freq << ADV748X_IO_DATAPATH_VFREQ_SHIFT);
> +
> + return 0;
> +}
> +
> +/* -----------------------------------------------------------------------------
> + * v4l2_subdev_video_ops
> + */
> +
> +static int adv748x_hdmi_s_dv_timings(struct v4l2_subdev *sd,
> + struct v4l2_dv_timings *timings)
> +{
> + struct adv748x_hdmi *hdmi = adv748x_sd_to_hdmi(sd);
> + struct adv748x_state *state = adv748x_hdmi_to_state(hdmi);
> + int ret;
> +
> + if (!timings)
> + return -EINVAL;
> +
> + if (v4l2_match_dv_timings(&hdmi->timings, timings, 0, false))
> + return 0;
> +
> + if (!v4l2_valid_dv_timings(timings, &adv748x_hdmi_timings_cap,
> + NULL, NULL))
> + return -ERANGE;
> +
> + adv748x_fill_optional_dv_timings(timings);
> +
> + mutex_lock(&state->mutex);
> +
> + ret = adv748x_hdmi_set_video_timings(state, timings);
> + if (ret)
> + goto error;
> +
> + hdmi->timings = *timings;
> +
> + cp_clrset(state, ADV748X_CP_VID_ADJ_2, ADV748X_CP_VID_ADJ_2_INTERLACED,
> + timings->bt.interlaced ?
> + ADV748X_CP_VID_ADJ_2_INTERLACED : 0);
> +
> + mutex_unlock(&state->mutex);
> +
> + return 0;
> +
> +error:
> + mutex_unlock(&state->mutex);
> + return ret;
> +}
> +
> +static int adv748x_hdmi_g_dv_timings(struct v4l2_subdev *sd,
> + struct v4l2_dv_timings *timings)
> +{
> + struct adv748x_hdmi *hdmi = adv748x_sd_to_hdmi(sd);
> + struct adv748x_state *state = adv748x_hdmi_to_state(hdmi);
> +
> + mutex_lock(&state->mutex);
> +
> + *timings = hdmi->timings;
> +
> + mutex_unlock(&state->mutex);
> +
> + return 0;
> +}
> +
> +static int adv748x_hdmi_query_dv_timings(struct v4l2_subdev *sd,
> + struct v4l2_dv_timings *timings)
> +{
> + struct adv748x_hdmi *hdmi = adv748x_sd_to_hdmi(sd);
> + struct adv748x_state *state = adv748x_hdmi_to_state(hdmi);
> + struct v4l2_bt_timings *bt = &timings->bt;
> + int pixelclock;
> + int polarity;
> +
> + if (!timings)
> + return -EINVAL;
> +
> + memset(timings, 0, sizeof(struct v4l2_dv_timings));
> +
> + if (!adv748x_hdmi_has_signal(state))
> + return -ENOLINK;
> +
> + pixelclock = adv748x_hdmi_read_pixelclock(state);
> + if (pixelclock < 0)
> + return -ENODATA;
> +
> + timings->type = V4L2_DV_BT_656_1120;
> +
> + bt->pixelclock = pixelclock;
> + bt->interlaced = hdmi_read(state, ADV748X_HDMI_F1H1) &
> + ADV748X_HDMI_F1H1_INTERLACED ?
> + V4L2_DV_INTERLACED : V4L2_DV_PROGRESSIVE;
> + bt->width = hdmi_read16(state, ADV748X_HDMI_LW1,
> + ADV748X_HDMI_LW1_WIDTH_MASK);
> + bt->height = hdmi_read16(state, ADV748X_HDMI_F0H1,
> + ADV748X_HDMI_F0H1_HEIGHT_MASK);
> + bt->hfrontporch = hdmi_read16(state, ADV748X_HDMI_HFRONT_PORCH,
> + ADV748X_HDMI_HFRONT_PORCH_MASK);
> + bt->hsync = hdmi_read16(state, ADV748X_HDMI_HSYNC_WIDTH,
> + ADV748X_HDMI_HSYNC_WIDTH_MASK);
> + bt->hbackporch = hdmi_read16(state, ADV748X_HDMI_HBACK_PORCH,
> + ADV748X_HDMI_HBACK_PORCH_MASK);
> + bt->vfrontporch = hdmi_read16(state, ADV748X_HDMI_VFRONT_PORCH,
> + ADV748X_HDMI_VFRONT_PORCH_MASK) / 2;
> + bt->vsync = hdmi_read16(state, ADV748X_HDMI_VSYNC_WIDTH,
> + ADV748X_HDMI_VSYNC_WIDTH_MASK) / 2;
> + bt->vbackporch = hdmi_read16(state, ADV748X_HDMI_VBACK_PORCH,
> + ADV748X_HDMI_VBACK_PORCH_MASK) / 2;
> +
> + polarity = hdmi_read(state, 0x05);
> + bt->polarities = (polarity & BIT(4) ? V4L2_DV_VSYNC_POS_POL : 0) |
> + (polarity & BIT(5) ? V4L2_DV_HSYNC_POS_POL : 0);
> +
> + if (bt->interlaced == V4L2_DV_INTERLACED) {
> + bt->height += hdmi_read16(state, 0x0b, 0x1fff);
> + bt->il_vfrontporch = hdmi_read16(state, 0x2c, 0x3fff) / 2;
> + bt->il_vsync = hdmi_read16(state, 0x30, 0x3fff) / 2;
> + bt->il_vbackporch = hdmi_read16(state, 0x34, 0x3fff) / 2;
> + }
> +
> + adv748x_fill_optional_dv_timings(timings);
> +
> + /*
> + * No interrupt handling is implemented yet.
> + * There should be an IRQ when a cable is plugged and the new timings
> + * should be figured out and stored to state.
> + */
> + hdmi->timings = *timings;
> +
> + return 0;
> +}
> +
> +static int adv748x_hdmi_g_input_status(struct v4l2_subdev *sd, u32 *status)
> +{
> + struct adv748x_hdmi *hdmi = adv748x_sd_to_hdmi(sd);
> + struct adv748x_state *state = adv748x_hdmi_to_state(hdmi);
> +
> + mutex_lock(&state->mutex);
> +
> + *status = adv748x_hdmi_has_signal(state) ? 0 : V4L2_IN_ST_NO_SIGNAL;
> +
> + mutex_unlock(&state->mutex);
> +
> + return 0;
> +}
> +
> +static int adv748x_hdmi_s_stream(struct v4l2_subdev *sd, int enable)
> +{
> + struct adv748x_hdmi *hdmi = adv748x_sd_to_hdmi(sd);
> + struct adv748x_state *state = adv748x_hdmi_to_state(hdmi);
> + int ret;
> +
> + mutex_lock(&state->mutex);
> +
> + ret = adv748x_txa_power(state, enable);
> + if (ret)
> + goto done;
> +
> + if (adv748x_hdmi_has_signal(state))
> + adv_dbg(state, "Detected HDMI signal\n");
> + else
> + adv_dbg(state, "Couldn't detect HDMI video signal\n");
> +
> +done:
> + mutex_unlock(&state->mutex);
> + return ret;
> +}
> +
> +static int adv748x_hdmi_g_pixelaspect(struct v4l2_subdev *sd,
> + struct v4l2_fract *aspect)
> +{
> + aspect->numerator = 1;
> + aspect->denominator = 1;
> +
> + return 0;
> +}
> +
> +static const struct v4l2_subdev_video_ops adv748x_video_ops_hdmi = {
> + .s_dv_timings = adv748x_hdmi_s_dv_timings,
> + .g_dv_timings = adv748x_hdmi_g_dv_timings,
> + .query_dv_timings = adv748x_hdmi_query_dv_timings,
> + .g_input_status = adv748x_hdmi_g_input_status,
> + .s_stream = adv748x_hdmi_s_stream,
> + .g_pixelaspect = adv748x_hdmi_g_pixelaspect,
> +};
> +
> +/* -----------------------------------------------------------------------------
> + * v4l2_subdev_pad_ops
> + */
> +
> +static int adv748x_hdmi_propagate_pixelrate(struct adv748x_hdmi *hdmi)
> +{
> + struct v4l2_subdev *tx;
> + struct v4l2_dv_timings timings;
> + struct v4l2_bt_timings *bt = &timings.bt;
> + unsigned int fps;
> +
> + tx = adv748x_get_remote_sd(&hdmi->pads[ADV748X_HDMI_SOURCE]);
> + if (!tx)
> + return -ENOLINK;
> +
> + adv748x_hdmi_query_dv_timings(&hdmi->sd, &timings);
> +
> + fps = DIV_ROUND_CLOSEST_ULL(bt->pixelclock,
> + V4L2_DV_BT_FRAME_WIDTH(bt) *
> + V4L2_DV_BT_FRAME_HEIGHT(bt));
> +
> + return adv748x_csi2_set_pixelrate(tx, bt->width * bt->height * fps);
> +}
> +
> +static int adv748x_hdmi_enum_mbus_code(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_mbus_code_enum *code)
> +{
> + if (code->index != 0)
> + return -EINVAL;
> +
> + code->code = MEDIA_BUS_FMT_RGB888_1X24;
> +
> + return 0;
> +}
> +
> +static int adv748x_hdmi_get_format(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_format *sdformat)
> +{
> + struct adv748x_hdmi *hdmi = adv748x_sd_to_hdmi(sd);
> + struct v4l2_mbus_framefmt *mbusformat;
> +
> + if (sdformat->pad != ADV748X_HDMI_SOURCE)
> + return -EINVAL;
> +
> + if (sdformat->which == V4L2_SUBDEV_FORMAT_TRY) {
> + mbusformat = v4l2_subdev_get_try_format(sd, cfg, sdformat->pad);
> + sdformat->format = *mbusformat;
> + } else {
> + adv748x_hdmi_fill_format(hdmi, &sdformat->format);
> + adv748x_hdmi_propagate_pixelrate(hdmi);
> + }
> +
> + return 0;
> +}
> +
> +static int adv748x_hdmi_set_format(struct v4l2_subdev *sd,
> + struct v4l2_subdev_pad_config *cfg,
> + struct v4l2_subdev_format *sdformat)
> +{
> + struct v4l2_mbus_framefmt *mbusformat;
> +
> + if (sdformat->pad != ADV748X_HDMI_SOURCE)
> + return -EINVAL;
> +
> + if (sdformat->which == V4L2_SUBDEV_FORMAT_ACTIVE)
> + return adv748x_hdmi_get_format(sd, cfg, sdformat);
> +
> + mbusformat = v4l2_subdev_get_try_format(sd, cfg, sdformat->pad);
> + *mbusformat = sdformat->format;
> +
> + return 0;
> +}
> +
> +static int adv748x_hdmi_get_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid)
> +{
> + struct adv748x_hdmi *hdmi = adv748x_sd_to_hdmi(sd);
> +
> + memset(edid->reserved, 0, sizeof(edid->reserved));
> +
> + if (!hdmi->edid.present)
> + return -ENODATA;
> +
> + if (edid->start_block == 0 && edid->blocks == 0) {
> + edid->blocks = hdmi->edid.blocks;
> + return 0;
> + }
> +
> + if (edid->start_block >= hdmi->edid.blocks)
> + return -EINVAL;
> +
> + if (edid->start_block + edid->blocks > hdmi->edid.blocks)
> + edid->blocks = hdmi->edid.blocks - edid->start_block;
> +
> + memcpy(edid->edid, hdmi->edid.edid + edid->start_block * 128,
> + edid->blocks * 128);
> +
> + return 0;
> +}
> +
> +static inline int adv748x_hdmi_edid_write_block(struct adv748x_hdmi *hdmi,
> + unsigned int total_len, const u8 *val)
> +{
> + struct adv748x_state *state = adv748x_hdmi_to_state(hdmi);
> + int err = 0;
> + int i = 0;
> + int len = 0;
> +
> + adv_dbg(state, "%s: write EDID block (%d byte)\n",
> + __func__, total_len);
> +
> + while (!err && i < total_len) {
> + len = (total_len - i) > I2C_SMBUS_BLOCK_MAX ?
> + I2C_SMBUS_BLOCK_MAX :
> + (total_len - i);
> +
> + err = adv748x_write_block(state, ADV748X_PAGE_EDID,
> + i, val + i, len);
> + i += len;
> + }
> +
> + return err;
> +}
> +
> +static int adv748x_hdmi_set_edid(struct v4l2_subdev *sd, struct v4l2_edid *edid)
> +{
> + struct adv748x_hdmi *hdmi = adv748x_sd_to_hdmi(sd);
> + struct adv748x_state *state = adv748x_hdmi_to_state(hdmi);
> + int err;
> +
> + memset(edid->reserved, 0, sizeof(edid->reserved));
> +
> + if (edid->start_block != 0)
> + return -EINVAL;
> +
> + if (edid->blocks == 0) {
> + hdmi->edid.blocks = 0;
> + hdmi->edid.present = 0;
> +
> + /* Fall back to a 16:9 aspect ratio */
> + hdmi->aspect_ratio.numerator = 16;
> + hdmi->aspect_ratio.denominator = 9;
> +
> + /* Disable the EDID */
> + repeater_write(state, ADV748X_REPEATER_EDID_SZ,
> + edid->blocks << ADV748X_REPEATER_EDID_SZ_SHIFT);
> +
> + repeater_write(state, ADV748X_REPEATER_EDID_CTL, 0);
> +
> + return 0;
> + }
> +
> + if (edid->blocks > 4) {
> + edid->blocks = 4;
> + return -E2BIG;
> + }
> +
> + memcpy(hdmi->edid.edid, edid->edid, 128 * edid->blocks);
> + hdmi->edid.blocks = edid->blocks;
> + hdmi->edid.present = true;
> +
> + hdmi->aspect_ratio = v4l2_calc_aspect_ratio(edid->edid[0x15],
> + edid->edid[0x16]);
> +
> + err = adv748x_hdmi_edid_write_block(hdmi, 128 * edid->blocks,
> + hdmi->edid.edid);
> + if (err < 0) {
> + v4l2_err(sd, "error %d writing edid pad %d\n", err, edid->pad);
> + return err;
> + }
> +
> + repeater_write(state, ADV748X_REPEATER_EDID_SZ,
> + edid->blocks << ADV748X_REPEATER_EDID_SZ_SHIFT);
> +
> + repeater_write(state, ADV748X_REPEATER_EDID_CTL,
> + ADV748X_REPEATER_EDID_CTL_EN);
> +
> + return 0;
> +}
> +
> +static bool adv748x_hdmi_check_dv_timings(const struct v4l2_dv_timings *timings,
> + void *hdl)
> +{
> + const struct adv748x_hdmi_video_standards *stds =
> + adv748x_hdmi_video_standards;
> + unsigned int i;
> +
> + for (i = 0; stds[i].timings.bt.width; i++)
> + if (v4l2_match_dv_timings(timings, &stds[i].timings, 0, false))
> + return true;
> +
> + return false;
> +}
> +
> +static int adv748x_hdmi_enum_dv_timings(struct v4l2_subdev *sd,
> + struct v4l2_enum_dv_timings *timings)
> +{
> + return v4l2_enum_dv_timings_cap(timings, &adv748x_hdmi_timings_cap,
> + adv748x_hdmi_check_dv_timings, NULL);
> +}
> +
> +static int adv748x_hdmi_dv_timings_cap(struct v4l2_subdev *sd,
> + struct v4l2_dv_timings_cap *cap)
> +{
> + *cap = adv748x_hdmi_timings_cap;
> + return 0;
> +}
> +
> +static const struct v4l2_subdev_pad_ops adv748x_pad_ops_hdmi = {
> + .enum_mbus_code = adv748x_hdmi_enum_mbus_code,
> + .set_fmt = adv748x_hdmi_set_format,
> + .get_fmt = adv748x_hdmi_get_format,
> + .get_edid = adv748x_hdmi_get_edid,
> + .set_edid = adv748x_hdmi_set_edid,
> + .dv_timings_cap = adv748x_hdmi_dv_timings_cap,
> + .enum_dv_timings = adv748x_hdmi_enum_dv_timings,
> +};
> +
> +/* -----------------------------------------------------------------------------
> + * v4l2_subdev_ops
> + */
> +
> +static const struct v4l2_subdev_ops adv748x_ops_hdmi = {
> + .video = &adv748x_video_ops_hdmi,
> + .pad = &adv748x_pad_ops_hdmi,
> +};
> +
> +/* -----------------------------------------------------------------------------
> + * Controls
> + */
> +
> +static const char * const hdmi_ctrl_patgen_menu[] = {
> + "Disabled",
> + "Solid Color",
> + "Color Bars",
> + "Ramp Grey",
> + "Ramp Blue",
> + "Ramp Red",
> + "Checkered"
> +};
> +
> +static int adv748x_hdmi_s_ctrl(struct v4l2_ctrl *ctrl)
> +{
> + struct adv748x_hdmi *hdmi = adv748x_ctrl_to_hdmi(ctrl);
> + struct adv748x_state *state = adv748x_hdmi_to_state(hdmi);
> + int ret;
> + u8 pattern;
> +
> + /* Enable video adjustment first */
> + ret = cp_clrset(state, ADV748X_CP_VID_ADJ,
> + ADV748X_CP_VID_ADJ_ENABLE,
> + ADV748X_CP_VID_ADJ_ENABLE);
> + if (ret < 0)
> + return ret;
> +
> + switch (ctrl->id) {
> + case V4L2_CID_BRIGHTNESS:
> + ret = cp_write(state, ADV748X_CP_BRI, ctrl->val);
> + break;
> + case V4L2_CID_HUE:
> + ret = cp_write(state, ADV748X_CP_HUE, ctrl->val);
> + break;
> + case V4L2_CID_CONTRAST:
> + ret = cp_write(state, ADV748X_CP_CON, ctrl->val);
> + break;
> + case V4L2_CID_SATURATION:
> + ret = cp_write(state, ADV748X_CP_SAT, ctrl->val);
> + break;
> + case V4L2_CID_TEST_PATTERN:
> + pattern = ctrl->val;
> +
> + /* Pattern is 0-indexed. Ctrl Menu is 1-indexed */
> + if (pattern) {
> + pattern--;
> + pattern |= ADV748X_CP_PAT_GEN_EN;
> + }
> +
> + ret = cp_write(state, ADV748X_CP_PAT_GEN, pattern);
> +
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + return ret;
> +}
> +
> +static const struct v4l2_ctrl_ops adv748x_hdmi_ctrl_ops = {
> + .s_ctrl = adv748x_hdmi_s_ctrl,
> +};
> +
> +static int adv748x_hdmi_init_controls(struct adv748x_hdmi *hdmi)
> +{
> + struct adv748x_state *state = adv748x_hdmi_to_state(hdmi);
> +
> + v4l2_ctrl_handler_init(&hdmi->ctrl_hdl, 5);
> +
> + /* Use our mutex for the controls */
> + hdmi->ctrl_hdl.lock = &state->mutex;
> +
> + v4l2_ctrl_new_std(&hdmi->ctrl_hdl, &adv748x_hdmi_ctrl_ops,
> + V4L2_CID_BRIGHTNESS, ADV748X_CP_BRI_MIN,
> + ADV748X_CP_BRI_MAX, 1, ADV748X_CP_BRI_DEF);
> + v4l2_ctrl_new_std(&hdmi->ctrl_hdl, &adv748x_hdmi_ctrl_ops,
> + V4L2_CID_CONTRAST, ADV748X_CP_CON_MIN,
> + ADV748X_CP_CON_MAX, 1, ADV748X_CP_CON_DEF);
> + v4l2_ctrl_new_std(&hdmi->ctrl_hdl, &adv748x_hdmi_ctrl_ops,
> + V4L2_CID_SATURATION, ADV748X_CP_SAT_MIN,
> + ADV748X_CP_SAT_MAX, 1, ADV748X_CP_SAT_DEF);
> + v4l2_ctrl_new_std(&hdmi->ctrl_hdl, &adv748x_hdmi_ctrl_ops,
> + V4L2_CID_HUE, ADV748X_CP_HUE_MIN,
> + ADV748X_CP_HUE_MAX, 1, ADV748X_CP_HUE_DEF);
> +
> + /*
> + * Todo: V4L2_CID_DV_RX_POWER_PRESENT should also be supported when
> + * interrupts are handled correctly
> + */
> +
> + v4l2_ctrl_new_std_menu_items(&hdmi->ctrl_hdl, &adv748x_hdmi_ctrl_ops,
> + V4L2_CID_TEST_PATTERN,
> + ARRAY_SIZE(hdmi_ctrl_patgen_menu) - 1,
> + 0, 0, hdmi_ctrl_patgen_menu);
> +
> + hdmi->sd.ctrl_handler = &hdmi->ctrl_hdl;
> + if (hdmi->ctrl_hdl.error) {
> + v4l2_ctrl_handler_free(&hdmi->ctrl_hdl);
> + return hdmi->ctrl_hdl.error;
> + }
> +
> + return v4l2_ctrl_handler_setup(&hdmi->ctrl_hdl);
> +}
> +
> +int adv748x_hdmi_init(struct adv748x_hdmi *hdmi)
> +{
> + struct adv748x_state *state = adv748x_hdmi_to_state(hdmi);
> + static const struct v4l2_dv_timings cea1280x720 =
> + V4L2_DV_BT_CEA_1280X720P30;
> + int ret;
> +
> + hdmi->timings = cea1280x720;
> +
> + /* Initialise a default 16:9 aspect ratio */
> + hdmi->aspect_ratio.numerator = 16;
> + hdmi->aspect_ratio.denominator = 9;
> +
> + adv748x_subdev_init(&hdmi->sd, state, &adv748x_ops_hdmi,
> + MEDIA_ENT_F_IO_DTV, "hdmi");
> +
> + hdmi->pads[ADV748X_HDMI_SINK].flags = MEDIA_PAD_FL_SINK;
> + hdmi->pads[ADV748X_HDMI_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
> +
> + ret = media_entity_pads_init(&hdmi->sd.entity,
> + ADV748X_HDMI_NR_PADS, hdmi->pads);
> + if (ret)
> + return ret;
> +
> + ret = adv748x_hdmi_init_controls(hdmi);
> + if (ret)
> + goto err_free_media;
> +
> + return 0;
> +
> +err_free_media:
> + media_entity_cleanup(&hdmi->sd.entity);
> +
> + return ret;
> +}
> +
> +void adv748x_hdmi_cleanup(struct adv748x_hdmi *hdmi)
> +{
> + v4l2_device_unregister_subdev(&hdmi->sd);
> + media_entity_cleanup(&hdmi->sd.entity);
> + v4l2_ctrl_handler_free(&hdmi->ctrl_hdl);
> +}
> diff --git a/drivers/media/i2c/adv748x/adv748x.h b/drivers/media/i2c/adv748x/adv748x.h
> new file mode 100644
> index 000000000000..cc4151b5b31e
> --- /dev/null
> +++ b/drivers/media/i2c/adv748x/adv748x.h
> @@ -0,0 +1,425 @@
> +/*
> + * Driver for Analog Devices ADV748X video decoder and HDMI receiver
> + *
> + * Copyright (C) 2017 Renesas Electronics Corp.
> + *
> + * This program is free software; you can redistribute it and/or modify it
> + * under the terms of the GNU General Public License as published by the
> + * Free Software Foundation; either version 2 of the License, or (at your
> + * option) any later version.
> + *
> + * Authors:
> + * Koji Matsuoka <koji.matsuoka.xm@...esas.com>
> + * Niklas Söderlund <niklas.soderlund@...natech.se>
> + * Kieran Bingham <kieran.bingham@...asonboard.com>
> + *
> + * The ADV748x range of receivers have the following configurations:
> + *
> + * Analog HDMI MHL 4-Lane 1-Lane
> + * In In CSI CSI
> + * ADV7480 X X X
> + * ADV7481 X X X X X
> + * ADV7482 X X X X
> + */
> +
> +#include <linux/i2c.h>
> +
> +#ifndef _ADV748X_H_
> +#define _ADV748X_H_
> +
> +/* I2C slave addresses */
> +#define ADV748X_I2C_IO 0x70 /* IO Map */
> +#define ADV748X_I2C_DPLL 0x26 /* DPLL Map */
> +#define ADV748X_I2C_CP 0x22 /* CP Map */
> +#define ADV748X_I2C_HDMI 0x34 /* HDMI Map */
> +#define ADV748X_I2C_EDID 0x36 /* EDID Map */
> +#define ADV748X_I2C_REPEATER 0x32 /* HDMI RX Repeater Map */
> +#define ADV748X_I2C_INFOFRAME 0x31 /* HDMI RX InfoFrame Map */
> +#define ADV748X_I2C_CEC 0x41 /* CEC Map */
> +#define ADV748X_I2C_SDP 0x79 /* SDP Map */
> +#define ADV748X_I2C_TXB 0x48 /* CSI-TXB Map */
> +#define ADV748X_I2C_TXA 0x4a /* CSI-TXA Map */
> +
> +enum adv748x_page {
> + ADV748X_PAGE_IO,
> + ADV748X_PAGE_DPLL,
> + ADV748X_PAGE_CP,
> + ADV748X_PAGE_HDMI,
> + ADV748X_PAGE_EDID,
> + ADV748X_PAGE_REPEATER,
> + ADV748X_PAGE_INFOFRAME,
> + ADV748X_PAGE_CEC,
> + ADV748X_PAGE_SDP,
> + ADV748X_PAGE_TXB,
> + ADV748X_PAGE_TXA,
> + ADV748X_PAGE_MAX,
> +
> + /* Fake pages for register sequences */
> + ADV748X_PAGE_WAIT, /* Wait x msec */
> + ADV748X_PAGE_EOR, /* End Mark */
> +};
> +
> +/**
> + * enum adv748x_ports - Device tree port number definitions
> + *
> + * The ADV748X ports define the mapping between subdevices
> + * and the device tree specification
> + */
> +enum adv748x_ports {
> + ADV748X_PORT_AIN0 = 0,
> + ADV748X_PORT_AIN1 = 1,
> + ADV748X_PORT_AIN2 = 2,
> + ADV748X_PORT_AIN3 = 3,
> + ADV748X_PORT_AIN4 = 4,
> + ADV748X_PORT_AIN5 = 5,
> + ADV748X_PORT_AIN6 = 6,
> + ADV748X_PORT_AIN7 = 7,
> + ADV748X_PORT_HDMI = 8,
> + ADV748X_PORT_TTL = 9,
> + ADV748X_PORT_TXA = 10,
> + ADV748X_PORT_TXB = 11,
> + ADV748X_PORT_MAX = 12,
> +};
> +
> +enum adv748x_csi2_pads {
> + ADV748X_CSI2_SINK,
> + ADV748X_CSI2_SOURCE,
> + ADV748X_CSI2_NR_PADS,
> +};
> +
> +/* CSI2 transmitters can have 2 internal connections, HDMI/AFE */
> +#define ADV748X_CSI2_MAX_SUBDEVS 2
> +
> +struct adv748x_csi2 {
> + struct adv748x_state *state;
> + struct v4l2_mbus_framefmt format;
> + unsigned int page;
> +
> + struct media_pad pads[ADV748X_CSI2_NR_PADS];
> + struct v4l2_ctrl_handler ctrl_hdl;
> + struct v4l2_subdev sd;
> +};
> +
> +#define notifier_to_csi2(n) container_of(n, struct adv748x_csi2, notifier)
> +#define adv748x_sd_to_csi2(sd) container_of(sd, struct adv748x_csi2, sd)
> +
> +enum adv748x_hdmi_pads {
> + ADV748X_HDMI_SINK,
> + ADV748X_HDMI_SOURCE,
> + ADV748X_HDMI_NR_PADS,
> +};
> +
> +struct adv748x_hdmi {
> + struct media_pad pads[ADV748X_HDMI_NR_PADS];
> + struct v4l2_ctrl_handler ctrl_hdl;
> + struct v4l2_subdev sd;
> + struct v4l2_mbus_framefmt format;
> +
> + struct v4l2_dv_timings timings;
> + struct v4l2_fract aspect_ratio;
> +
> + struct {
> + u8 edid[512];
> + u32 present;
> + unsigned int blocks;
> + } edid;
> +};
> +
> +#define adv748x_ctrl_to_hdmi(ctrl) \
> + container_of(ctrl->handler, struct adv748x_hdmi, ctrl_hdl)
> +#define adv748x_sd_to_hdmi(sd) container_of(sd, struct adv748x_hdmi, sd)
> +
> +enum adv748x_afe_pads {
> + ADV748X_AFE_SINK_AIN0,
> + ADV748X_AFE_SINK_AIN1,
> + ADV748X_AFE_SINK_AIN2,
> + ADV748X_AFE_SINK_AIN3,
> + ADV748X_AFE_SINK_AIN4,
> + ADV748X_AFE_SINK_AIN5,
> + ADV748X_AFE_SINK_AIN6,
> + ADV748X_AFE_SINK_AIN7,
> + ADV748X_AFE_SOURCE,
> + ADV748X_AFE_NR_PADS,
> +};
> +
> +struct adv748x_afe {
> + struct media_pad pads[ADV748X_AFE_NR_PADS];
> + struct v4l2_ctrl_handler ctrl_hdl;
> + struct v4l2_subdev sd;
> + struct v4l2_mbus_framefmt format;
> +
> + bool streaming;
> + v4l2_std_id curr_norm;
> + unsigned int input;
> +};
> +
> +#define adv748x_ctrl_to_afe(ctrl) \
> + container_of(ctrl->handler, struct adv748x_afe, ctrl_hdl)
> +#define adv748x_sd_to_afe(sd) container_of(sd, struct adv748x_afe, sd)
> +
> +/**
> + * struct adv748x_state - State of ADV748X
> + * @dev: (OF) device
> + * @client: I2C client
> + * @mutex: protect global state
> + *
> + * @endpoints: parsed device node endpoints for each port
> + *
> + * @i2c_addresses I2C Page addresses
> + * @i2c_clients I2C clients for the page accesses
> + * @regmap regmap configuration pages.
> + *
> + * @hdmi: state of HDMI receiver context
> + * @afe: state of AFE receiver context
> + * @txa: state of TXA transmitter context
> + * @txb: state of TXB transmitter context
> + */
> +struct adv748x_state {
> + struct device *dev;
> + struct i2c_client *client;
> + struct mutex mutex;
> +
> + struct device_node *endpoints[ADV748X_PORT_MAX];
> +
> + struct i2c_client *i2c_clients[ADV748X_PAGE_MAX];
> + struct regmap *regmap[ADV748X_PAGE_MAX];
> +
> + struct adv748x_hdmi hdmi;
> + struct adv748x_afe afe;
> + struct adv748x_csi2 txa;
> + struct adv748x_csi2 txb;
> +};
> +
> +#define adv748x_hdmi_to_state(h) container_of(h, struct adv748x_state, hdmi)
> +#define adv748x_afe_to_state(a) container_of(a, struct adv748x_state, afe)
> +
> +#define adv_err(a, fmt, arg...) dev_err(a->dev, fmt, ##arg)
> +#define adv_info(a, fmt, arg...) dev_info(a->dev, fmt, ##arg)
> +#define adv_dbg(a, fmt, arg...) dev_dbg(a->dev, fmt, ##arg)
> +
> +/* Register Mappings */
> +
> +/* IO Map */
> +#define ADV748X_IO_PD 0x00 /* power down controls */
> +#define ADV748X_IO_PD_RX_EN BIT(6)
> +
> +#define ADV748X_IO_REG_04 0x04
> +#define ADV748X_IO_REG_04_FORCE_FR BIT(0) /* Force CP free-run */
> +
> +#define ADV748X_IO_DATAPATH 0x03 /* datapath cntrl */
> +#define ADV748X_IO_DATAPATH_VFREQ_M 0x70
> +#define ADV748X_IO_DATAPATH_VFREQ_SHIFT 4
> +
> +#define ADV748X_IO_VID_STD 0x05
> +
> +#define ADV748X_IO_10 0x10 /* io_reg_10 */
> +#define ADV748X_IO_10_CSI4_EN BIT(7)
> +#define ADV748X_IO_10_CSI1_EN BIT(6)
> +#define ADV748X_IO_10_PIX_OUT_EN BIT(5)
> +
> +#define ADV748X_IO_CHIP_REV_ID_1 0xdf
> +#define ADV748X_IO_CHIP_REV_ID_2 0xe0
> +
> +#define ADV748X_IO_SLAVE_ADDR_BASE 0xf2
> +
> +/* HDMI RX Map */
> +#define ADV748X_HDMI_LW1 0x07 /* line width_1 */
> +#define ADV748X_HDMI_LW1_VERT_FILTER BIT(7)
> +#define ADV748X_HDMI_LW1_DE_REGEN BIT(5)
> +#define ADV748X_HDMI_LW1_WIDTH_MASK 0x1fff
> +
> +#define ADV748X_HDMI_F0H1 0x09 /* field0 height_1 */
> +#define ADV748X_HDMI_F0H1_HEIGHT_MASK 0x1fff
> +
> +#define ADV748X_HDMI_F1H1 0x0b /* field1 height_1 */
> +#define ADV748X_HDMI_F1H1_INTERLACED BIT(5)
> +
> +#define ADV748X_HDMI_HFRONT_PORCH 0x20 /* hsync_front_porch_1 */
> +#define ADV748X_HDMI_HFRONT_PORCH_MASK 0x1fff
> +
> +#define ADV748X_HDMI_HSYNC_WIDTH 0x22 /* hsync_pulse_width_1 */
> +#define ADV748X_HDMI_HSYNC_WIDTH_MASK 0x1fff
> +
> +#define ADV748X_HDMI_HBACK_PORCH 0x24 /* hsync_back_porch_1 */
> +#define ADV748X_HDMI_HBACK_PORCH_MASK 0x1fff
> +
> +#define ADV748X_HDMI_VFRONT_PORCH 0x2a /* field0_vs_front_porch_1 */
> +#define ADV748X_HDMI_VFRONT_PORCH_MASK 0x3fff
> +
> +#define ADV748X_HDMI_VSYNC_WIDTH 0x2e /* field0_vs_pulse_width_1 */
> +#define ADV748X_HDMI_VSYNC_WIDTH_MASK 0x3fff
> +
> +#define ADV748X_HDMI_VBACK_PORCH 0x32 /* field0_vs_back_porch_1 */
> +#define ADV748X_HDMI_VBACK_PORCH_MASK 0x3fff
> +
> +#define ADV748X_HDMI_TMDS_1 0x51 /* hdmi_reg_51 */
> +#define ADV748X_HDMI_TMDS_2 0x52 /* hdmi_reg_52 */
> +
> +/* HDMI RX Repeater Map */
> +#define ADV748X_REPEATER_EDID_SZ 0x70 /* primary_edid_size */
> +#define ADV748X_REPEATER_EDID_SZ_SHIFT 4
> +
> +#define ADV748X_REPEATER_EDID_CTL 0x74 /* hdcp edid controls */
> +#define ADV748X_REPEATER_EDID_CTL_EN BIT(0) /* man_edid_a_enable */
> +
> +/* SDP Main Map */
> +#define ADV748X_SDP_INSEL 0x00 /* user_map_rw_reg_00 */
> +
> +#define ADV748X_SDP_VID_SEL 0x02 /* user_map_rw_reg_02 */
> +#define ADV748X_SDP_VID_SEL_MASK 0xf0
> +#define ADV748X_SDP_VID_SEL_SHIFT 4
> +
> +/* Contrast - Unsigned*/
> +#define ADV748X_SDP_CON 0x08 /* user_map_rw_reg_08 */
> +#define ADV748X_SDP_CON_MIN 0
> +#define ADV748X_SDP_CON_DEF 128
> +#define ADV748X_SDP_CON_MAX 255
> +
> +/* Brightness - Signed */
> +#define ADV748X_SDP_BRI 0x0a /* user_map_rw_reg_0a */
> +#define ADV748X_SDP_BRI_MIN -128
> +#define ADV748X_SDP_BRI_DEF 0
> +#define ADV748X_SDP_BRI_MAX 127
> +
> +/* Hue - Signed, inverted*/
> +#define ADV748X_SDP_HUE 0x0b /* user_map_rw_reg_0b */
> +#define ADV748X_SDP_HUE_MIN -127
> +#define ADV748X_SDP_HUE_DEF 0
> +#define ADV748X_SDP_HUE_MAX 128
> +
> +/* Test Patterns / Default Values */
> +#define ADV748X_SDP_DEF 0x0c /* user_map_rw_reg_0c */
> +#define ADV748X_SDP_DEF_VAL_EN BIT(0) /* Force free run mode */
> +#define ADV748X_SDP_DEF_VAL_AUTO_EN BIT(1) /* Free run when no signal */
> +
> +#define ADV748X_SDP_MAP_SEL 0x0e /* user_map_rw_reg_0e */
> +#define ADV748X_SDP_MAP_SEL_RO_MAIN 1
> +
> +/* Free run pattern select */
> +#define ADV748X_SDP_FRP 0x14
> +#define ADV748X_SDP_FRP_MASK GENMASK(3, 1)
> +
> +/* Saturation */
> +#define ADV748X_SDP_SD_SAT_U 0xe3 /* user_map_rw_reg_e3 */
> +#define ADV748X_SDP_SD_SAT_V 0xe4 /* user_map_rw_reg_e4 */
> +#define ADV748X_SDP_SAT_MIN 0
> +#define ADV748X_SDP_SAT_DEF 128
> +#define ADV748X_SDP_SAT_MAX 255
> +
> +/* SDP RO Main Map */
> +#define ADV748X_SDP_RO_10 0x10
> +#define ADV748X_SDP_RO_10_IN_LOCK BIT(0)
> +
> +/* CP Map */
> +#define ADV748X_CP_PAT_GEN 0x37 /* int_pat_gen_1 */
> +#define ADV748X_CP_PAT_GEN_EN BIT(7)
> +
> +/* Contrast Control - Unsigned */
> +#define ADV748X_CP_CON 0x3a /* contrast_cntrl */
> +#define ADV748X_CP_CON_MIN 0 /* Minimum contrast */
> +#define ADV748X_CP_CON_DEF 128 /* Default */
> +#define ADV748X_CP_CON_MAX 255 /* Maximum contrast */
> +
> +/* Saturation Control - Unsigned */
> +#define ADV748X_CP_SAT 0x3b /* saturation_cntrl */
> +#define ADV748X_CP_SAT_MIN 0 /* Minimum saturation */
> +#define ADV748X_CP_SAT_DEF 128 /* Default */
> +#define ADV748X_CP_SAT_MAX 255 /* Maximum saturation */
> +
> +/* Brightness Control - Signed */
> +#define ADV748X_CP_BRI 0x3c /* brightness_cntrl */
> +#define ADV748X_CP_BRI_MIN -128 /* Luma is -512d */
> +#define ADV748X_CP_BRI_DEF 0 /* Luma is 0 */
> +#define ADV748X_CP_BRI_MAX 127 /* Luma is 508d */
> +
> +/* Hue Control */
> +#define ADV748X_CP_HUE 0x3d /* hue_cntrl */
> +#define ADV748X_CP_HUE_MIN 0 /* -90 degree */
> +#define ADV748X_CP_HUE_DEF 0 /* -90 degree */
> +#define ADV748X_CP_HUE_MAX 255 /* +90 degree */
> +
> +#define ADV748X_CP_VID_ADJ 0x3e /* vid_adj_0 */
> +#define ADV748X_CP_VID_ADJ_ENABLE BIT(7) /* Enable colour controls */
> +
> +#define ADV748X_CP_DE_POS_HIGH 0x8b /* de_pos_adj_6 */
> +#define ADV748X_CP_DE_POS_HIGH_SET BIT(6)
> +#define ADV748X_CP_DE_POS_END_LOW 0x8c /* de_pos_adj_7 */
> +#define ADV748X_CP_DE_POS_START_LOW 0x8d /* de_pos_adj_8 */
> +
> +#define ADV748X_CP_VID_ADJ_2 0x91
> +#define ADV748X_CP_VID_ADJ_2_INTERLACED BIT(6)
> +#define ADV748X_CP_VID_ADJ_2_INTERLACED_3D BIT(4)
> +
> +#define ADV748X_CP_CLMP_POS 0xc9 /* clmp_pos_cntrl_4 */
> +#define ADV748X_CP_CLMP_POS_DIS_AUTO BIT(0) /* dis_auto_param_buff */
> +
> +/* CSI : TXA/TXB Maps */
> +#define ADV748X_CSI_VC_REF 0x0d /* csi_tx_top_reg_0d */
> +#define ADV748X_CSI_VC_REF_SHIFT 6
> +
> +#define ADV748X_CSI_FS_AS_LS 0x1e /* csi_tx_top_reg_1e */
> +#define ADV748X_CSI_FS_AS_LS_UNKNOWN BIT(6) /* Undocumented bit */
> +
> +/* Register handling */
> +
> +int adv748x_read(struct adv748x_state *state, u8 addr, u8 reg);
> +int adv748x_write(struct adv748x_state *state, u8 page, u8 reg, u8 value);
> +int adv748x_write_block(struct adv748x_state *state, int client_page,
> + unsigned int init_reg, const void *val,
> + size_t val_len);
> +
> +#define io_read(s, r) adv748x_read(s, ADV748X_PAGE_IO, r)
> +#define io_write(s, r, v) adv748x_write(s, ADV748X_PAGE_IO, r, v)
> +#define io_clrset(s, r, m, v) io_write(s, r, (io_read(s, r) & ~m) | v)
> +
> +#define hdmi_read(s, r) adv748x_read(s, ADV748X_PAGE_HDMI, r)
> +#define hdmi_read16(s, r, m) (((hdmi_read(s, r) << 8) | hdmi_read(s, r+1)) & m)
> +#define hdmi_write(s, r, v) adv748x_write(s, ADV748X_PAGE_HDMI, r, v)
> +
> +#define repeater_read(s, r) adv748x_read(s, ADV748X_PAGE_REPEATER, r)
> +#define repeater_write(s, r, v) adv748x_write(s, ADV748X_PAGE_REPEATER, r, v)
> +
> +#define sdp_read(s, r) adv748x_read(s, ADV748X_PAGE_SDP, r)
> +#define sdp_write(s, r, v) adv748x_write(s, ADV748X_PAGE_SDP, r, v)
> +#define sdp_clrset(s, r, m, v) sdp_write(s, r, (sdp_read(s, r) & ~m) | v)
> +
> +#define cp_read(s, r) adv748x_read(s, ADV748X_PAGE_CP, r)
> +#define cp_write(s, r, v) adv748x_write(s, ADV748X_PAGE_CP, r, v)
> +#define cp_clrset(s, r, m, v) cp_write(s, r, (cp_read(s, r) & ~m) | v)
> +
> +#define txa_read(s, r) adv748x_read(s, ADV748X_PAGE_TXA, r)
> +#define txb_read(s, r) adv748x_read(s, ADV748X_PAGE_TXB, r)
> +
> +#define tx_read(t, r) adv748x_read(t->state, t->page, r)
> +#define tx_write(t, r, v) adv748x_write(t->state, t->page, r, v)
> +
> +static inline struct v4l2_subdev *adv748x_get_remote_sd(struct media_pad *pad)
> +{
> + pad = media_entity_remote_pad(pad);
> + if (!pad)
> + return NULL;
> +
> + return media_entity_to_v4l2_subdev(pad->entity);
> +}
> +
> +void adv748x_subdev_init(struct v4l2_subdev *sd, struct adv748x_state *state,
> + const struct v4l2_subdev_ops *ops, u32 function,
> + const char *ident);
> +
> +int adv748x_register_subdevs(struct adv748x_state *state,
> + struct v4l2_device *v4l2_dev);
> +
> +int adv748x_txa_power(struct adv748x_state *state, bool on);
> +int adv748x_txb_power(struct adv748x_state *state, bool on);
> +
> +int adv748x_afe_init(struct adv748x_afe *afe);
> +void adv748x_afe_cleanup(struct adv748x_afe *afe);
> +
> +int adv748x_csi2_init(struct adv748x_state *state, struct adv748x_csi2 *tx);
> +void adv748x_csi2_cleanup(struct adv748x_csi2 *tx);
> +int adv748x_csi2_set_pixelrate(struct v4l2_subdev *sd, s64 rate);
> +
> +int adv748x_hdmi_init(struct adv748x_hdmi *hdmi);
> +void adv748x_hdmi_cleanup(struct adv748x_hdmi *hdmi);
> +
> +#endif /* _ADV748X_H_ */
> --
> git-series 0.9.1
--
Regards,
Niklas Söderlund
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