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Message-ID: <94a753ab-9fe6-43b4-aa50-cf94a55db8f9@linaro.org>
Date: Fri, 6 Dec 2024 00:18:05 +0000
From: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To: Depeng Shao <quic_depengs@...cinc.com>, rfoss@...nel.org,
todor.too@...il.com, bryan.odonoghue@...aro.org, mchehab@...nel.org,
robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
vladimir.zapolskiy@...aro.org
Cc: quic_eberman@...cinc.com, linux-media@...r.kernel.org,
linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, kernel@...cinc.com,
Yongsheng Li <quic_yon@...cinc.com>
Subject: Re: [PATCH 16/16] media: qcom: camss: Add support for VFE hardware
version Titan 780
Just to re-illustriate the point
"[PATCH 16/16] media: qcom: camss: Add support for VFE hardware version
Titan 780"
You have CSID 780 + sm8550 in the CSID patch but VFE for Titan 780.
Just "VFE 780" please
On 05/12/2024 15:55, Depeng Shao wrote:
> Add support for VFE found on SM8550 (Titan 780). This implementation is
> based on the titan 480 implementation. It supports the normal and lite
> VFE.
>
> Co-developed-by: Yongsheng Li <quic_yon@...cinc.com>
> Signed-off-by: Yongsheng Li <quic_yon@...cinc.com>
> Signed-off-by: Depeng Shao <quic_depengs@...cinc.com>
> ---
> drivers/media/platform/qcom/camss/Makefile | 1 +
> .../media/platform/qcom/camss/camss-vfe-780.c | 159 ++++++++++++++++++
> drivers/media/platform/qcom/camss/camss-vfe.c | 2 +
> drivers/media/platform/qcom/camss/camss-vfe.h | 1 +
> drivers/media/platform/qcom/camss/camss.c | 121 +++++++++++++
> 5 files changed, 284 insertions(+)
> create mode 100644 drivers/media/platform/qcom/camss/camss-vfe-780.c
>
> diff --git a/drivers/media/platform/qcom/camss/Makefile b/drivers/media/platform/qcom/camss/Makefile
> index 9a723e8712a2..f6db5b3b5ace 100644
> --- a/drivers/media/platform/qcom/camss/Makefile
> +++ b/drivers/media/platform/qcom/camss/Makefile
> @@ -17,6 +17,7 @@ qcom-camss-objs += \
> camss-vfe-4-8.o \
> camss-vfe-17x.o \
> camss-vfe-480.o \
> + camss-vfe-780.o \
> camss-vfe-gen1.o \
> camss-vfe.o \
> camss-video.o \
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe-780.c b/drivers/media/platform/qcom/camss/camss-vfe-780.c
> new file mode 100644
> index 000000000000..b9812d70f91b
> --- /dev/null
> +++ b/drivers/media/platform/qcom/camss/camss-vfe-780.c
> @@ -0,0 +1,159 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Qualcomm MSM Camera Subsystem - VFE (Video Front End) Module v780 (SM8550)
> + *
> + * Copyright (c) 2024 Qualcomm Technologies, Inc.
> + */
> +
> +#include <linux/interrupt.h>
> +#include <linux/io.h>
> +#include <linux/iopoll.h>
> +
> +#include "camss.h"
> +#include "camss-vfe.h"
> +
> +#define BUS_REG_BASE (vfe_is_lite(vfe) ? 0x200 : 0xC00)
> +
> +#define VFE_BUS_WM_CGC_OVERRIDE (BUS_REG_BASE + 0x08)
> +#define WM_CGC_OVERRIDE_ALL (0x7FFFFFF)
> +
> +#define VFE_BUS_WM_TEST_BUS_CTRL (BUS_REG_BASE + 0xDC)
> +
> +#define VFE_BUS_WM_CFG(n) (BUS_REG_BASE + 0x200 + (n) * 0x100)
> +#define WM_CFG_EN BIT(0)
> +#define WM_VIR_FRM_EN BIT(1)
> +#define WM_CFG_MODE BIT(16)
> +#define VFE_BUS_WM_IMAGE_ADDR(n) (BUS_REG_BASE + 0x204 + (n) * 0x100)
> +#define VFE_BUS_WM_FRAME_INCR(n) (BUS_REG_BASE + 0x208 + (n) * 0x100)
> +#define VFE_BUS_WM_IMAGE_CFG_0(n) (BUS_REG_BASE + 0x20c + (n) * 0x100)
> +#define WM_IMAGE_CFG_0_DEFAULT_WIDTH (0xFFFF)
> +#define VFE_BUS_WM_IMAGE_CFG_2(n) (BUS_REG_BASE + 0x214 + (n) * 0x100)
> +#define WM_IMAGE_CFG_2_DEFAULT_STRIDE (0xFFFF)
> +#define VFE_BUS_WM_PACKER_CFG(n) (BUS_REG_BASE + 0x218 + (n) * 0x100)
> +
> +#define VFE_BUS_WM_IRQ_SUBSAMPLE_PERIOD(n) (BUS_REG_BASE + 0x230 + (n) * 0x100)
> +#define VFE_BUS_WM_IRQ_SUBSAMPLE_PATTERN(n) (BUS_REG_BASE + 0x234 + (n) * 0x100)
> +#define VFE_BUS_WM_FRAMEDROP_PERIOD(n) (BUS_REG_BASE + 0x238 + (n) * 0x100)
> +#define VFE_BUS_WM_FRAMEDROP_PATTERN(n) (BUS_REG_BASE + 0x23c + (n) * 0x100)
> +
> +#define VFE_BUS_WM_MMU_PREFETCH_CFG(n) (BUS_REG_BASE + 0x260 + (n) * 0x100)
> +#define VFE_BUS_WM_MMU_PREFETCH_MAX_OFFSET(n) (BUS_REG_BASE + 0x264 + (n) * 0x100)
> +
> +/*
> + * Bus client mapping:
> + *
> + * Full VFE:
> + * 23 = RDI0, 24 = RDI1, 25 = RDI2
> + *
> + * VFE LITE:
> + * 0 = RDI0, 1 = RDI1, 2 = RDI3, 4 = RDI4
> + */
> +#define RDI_WM(n) ((vfe_is_lite(vfe) ? 0x0 : 0x17) + (n))
> +
> +static void vfe_wm_start(struct vfe_device *vfe, u8 wm, struct vfe_line *line)
> +{
> + struct v4l2_pix_format_mplane *pix =
> + &line->video_out.active_fmt.fmt.pix_mp;
> +
> + wm = RDI_WM(wm);
> +
> + /* no clock gating at bus input */
> + writel(WM_CGC_OVERRIDE_ALL, vfe->base + VFE_BUS_WM_CGC_OVERRIDE);
> +
> + writel(0x0, vfe->base + VFE_BUS_WM_TEST_BUS_CTRL);
> +
> + writel(ALIGN(pix->plane_fmt[0].bytesperline, 16) * pix->height >> 8,
> + vfe->base + VFE_BUS_WM_FRAME_INCR(wm));
> + writel((WM_IMAGE_CFG_0_DEFAULT_WIDTH & 0xFFFF),
> + vfe->base + VFE_BUS_WM_IMAGE_CFG_0(wm));
> + writel(WM_IMAGE_CFG_2_DEFAULT_STRIDE,
> + vfe->base + VFE_BUS_WM_IMAGE_CFG_2(wm));
> + writel(0, vfe->base + VFE_BUS_WM_PACKER_CFG(wm));
> +
> + /* no dropped frames, one irq per frame */
> + writel(0, vfe->base + VFE_BUS_WM_FRAMEDROP_PERIOD(wm));
> + writel(1, vfe->base + VFE_BUS_WM_FRAMEDROP_PATTERN(wm));
> + writel(0, vfe->base + VFE_BUS_WM_IRQ_SUBSAMPLE_PERIOD(wm));
> + writel(1, vfe->base + VFE_BUS_WM_IRQ_SUBSAMPLE_PATTERN(wm));
> +
> + writel(1, vfe->base + VFE_BUS_WM_MMU_PREFETCH_CFG(wm));
> + writel(0xFFFFFFFF, vfe->base + VFE_BUS_WM_MMU_PREFETCH_MAX_OFFSET(wm));
> +
> + writel(WM_CFG_EN | WM_CFG_MODE, vfe->base + VFE_BUS_WM_CFG(wm));
> +}
> +
> +static void vfe_wm_stop(struct vfe_device *vfe, u8 wm)
> +{
> + wm = RDI_WM(wm);
> + writel(0, vfe->base + VFE_BUS_WM_CFG(wm));
> +}
> +
> +static void vfe_wm_update(struct vfe_device *vfe, u8 wm, u32 addr,
> + struct vfe_line *line)
> +{
> + wm = RDI_WM(wm);
> + writel((addr >> 8) & 0xFFFFFFFF, vfe->base + VFE_BUS_WM_IMAGE_ADDR(wm));
> +
> + dev_dbg(vfe->camss->dev, "wm:%d, image buf addr:0x%x\n",
> + wm, addr);
> +}
> +
> +static void vfe_reg_update(struct vfe_device *vfe, enum vfe_line_id line_id)
> +{
> + int port_id = line_id;
> +
> + camss_reg_update(vfe->camss, vfe->id, port_id, false);
> +}
> +
> +static inline void vfe_reg_update_clear(struct vfe_device *vfe,
> + enum vfe_line_id line_id)
> +{
> + int port_id = line_id;
> +
> + camss_reg_update(vfe->camss, vfe->id, port_id, true);
> +}
> +
> +static const struct camss_video_ops vfe_video_ops_780 = {
> + .queue_buffer = vfe_queue_buffer_v2,
> + .flush_buffers = vfe_flush_buffers,
> +};
> +
> +static void vfe_subdev_init(struct device *dev, struct vfe_device *vfe)
> +{
> + vfe->video_ops = vfe_video_ops_780;
> +}
> +
> +static void vfe_global_reset(struct vfe_device *vfe)
> +{
> + vfe_isr_reset_ack(vfe);
> +}
> +
> +static irqreturn_t vfe_isr(int irq, void *dev)
> +{
> + /* nop */
> + return IRQ_HANDLED;
> +}
> +
> +static int vfe_halt(struct vfe_device *vfe)
> +{
> + /* rely on vfe_disable_output() to stop the VFE */
> + return 0;
> +}
> +
> +const struct vfe_hw_ops vfe_ops_780 = {
> + .global_reset = vfe_global_reset,
> + .hw_version = vfe_hw_version,
> + .isr = vfe_isr,
> + .pm_domain_off = vfe_pm_domain_off,
> + .pm_domain_on = vfe_pm_domain_on,
> + .reg_update = vfe_reg_update,
> + .reg_update_clear = vfe_reg_update_clear,
> + .subdev_init = vfe_subdev_init,
> + .vfe_disable = vfe_disable,
> + .vfe_enable = vfe_enable_v2,
> + .vfe_halt = vfe_halt,
> + .vfe_wm_start = vfe_wm_start,
> + .vfe_wm_stop = vfe_wm_stop,
> + .vfe_buf_done = vfe_buf_done,
> + .vfe_wm_update = vfe_wm_update,
> +};
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
> index 1c9b6569fbe5..c95b127a7e2e 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe.c
> +++ b/drivers/media/platform/qcom/camss/camss-vfe.c
> @@ -344,6 +344,7 @@ static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code,
> case CAMSS_845:
> case CAMSS_8250:
> case CAMSS_8280XP:
> + case CAMSS_8550:
> switch (sink_code) {
> case MEDIA_BUS_FMT_YUYV8_1X16:
> {
> @@ -1964,6 +1965,7 @@ static int vfe_bpl_align(struct vfe_device *vfe)
> case CAMSS_845:
> case CAMSS_8250:
> case CAMSS_8280XP:
> + case CAMSS_8550:
> ret = 16;
> break;
> default:
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe.h b/drivers/media/platform/qcom/camss/camss-vfe.h
> index 977710d6655e..2a2e2d82dd51 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe.h
> +++ b/drivers/media/platform/qcom/camss/camss-vfe.h
> @@ -242,6 +242,7 @@ extern const struct vfe_hw_ops vfe_ops_4_7;
> extern const struct vfe_hw_ops vfe_ops_4_8;
> extern const struct vfe_hw_ops vfe_ops_170;
> extern const struct vfe_hw_ops vfe_ops_480;
> +extern const struct vfe_hw_ops vfe_ops_780;
>
> int vfe_get(struct vfe_device *vfe);
> void vfe_put(struct vfe_device *vfe);
> diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
> index c0e336f3916b..e8cc96d3d0d2 100644
> --- a/drivers/media/platform/qcom/camss/camss.c
> +++ b/drivers/media/platform/qcom/camss/camss.c
> @@ -1823,6 +1823,125 @@ static const struct camss_subdev_resources csid_res_8550[] = {
> }
> };
>
> +static const struct camss_subdev_resources vfe_res_8550[] = {
> + /* VFE0 */
> + {
> + .regulators = {},
> + .clock = { "gcc_axi_hf", "cpas_ahb", "cpas_fast_ahb_clk", "vfe0_fast_ahb",
> + "vfe0", "cpas_vfe0", "camnoc_axi" },
> + .clock_rate = { { 0 },
> + { 80000000 },
> + { 300000000, 400000000 },
> + { 300000000, 400000000 },
> + { 466000000, 594000000, 675000000, 785000000 },
> + { 300000000, 400000000 },
> + { 300000000, 400000000 } },
> + .reg = { "vfe0" },
> + .interrupt = { "vfe0" },
> + .vfe = {
> + .line_num = 3,
> + .is_lite = false,
> + .has_pd = true,
> + .pd_name = "ife0",
> + .hw_ops = &vfe_ops_780,
> + .formats_rdi = &vfe_formats_rdi_845,
> + .formats_pix = &vfe_formats_pix_845
> + }
> + },
> + /* VFE1 */
> + {
> + .regulators = {},
> + .clock = { "gcc_axi_hf", "cpas_ahb", "cpas_fast_ahb_clk", "vfe1_fast_ahb",
> + "vfe1", "cpas_vfe1", "camnoc_axi" },
> + .clock_rate = { { 0 },
> + { 80000000 },
> + { 300000000, 400000000 },
> + { 300000000, 400000000 },
> + { 466000000, 594000000, 675000000, 785000000 },
> + { 300000000, 400000000 },
> + { 300000000, 400000000 } },
> + .reg = { "vfe1" },
> + .interrupt = { "vfe1" },
> + .vfe = {
> + .line_num = 3,
> + .is_lite = false,
> + .has_pd = true,
> + .pd_name = "ife1",
> + .hw_ops = &vfe_ops_780,
> + .formats_rdi = &vfe_formats_rdi_845,
> + .formats_pix = &vfe_formats_pix_845
> + }
> + },
> + /* VFE2 */
> + {
> + .regulators = {},
> + .clock = { "gcc_axi_hf", "cpas_ahb", "cpas_fast_ahb_clk", "vfe2_fast_ahb",
> + "vfe2", "cpas_vfe2", "camnoc_axi" },
> + .clock_rate = { { 0 },
> + { 80000000 },
> + { 300000000, 400000000 },
> + { 300000000, 400000000 },
> + { 466000000, 594000000, 675000000, 785000000 },
> + { 300000000, 400000000 },
> + { 300000000, 400000000 } },
> + .reg = { "vfe2" },
> + .interrupt = { "vfe2" },
> + .vfe = {
> + .line_num = 3,
> + .is_lite = false,
> + .has_pd = true,
> + .pd_name = "ife2",
> + .hw_ops = &vfe_ops_780,
> + .formats_rdi = &vfe_formats_rdi_845,
> + .formats_pix = &vfe_formats_pix_845
> + }
> + },
> + /* VFE3 lite */
> + {
> + .regulators = {},
> + .clock = { "gcc_axi_hf", "cpas_ahb", "cpas_fast_ahb_clk", "vfe_lite_ahb",
> + "vfe_lite", "cpas_ife_lite", "camnoc_axi" },
> + .clock_rate = { { 0 },
> + { 80000000 },
> + { 300000000, 400000000 },
> + { 300000000, 400000000 },
> + { 400000000, 480000000 },
> + { 300000000, 400000000 },
> + { 300000000, 400000000 } },
> + .reg = { "vfe_lite0" },
> + .interrupt = { "vfe_lite0" },
> + .vfe = {
> + .line_num = 4,
> + .is_lite = true,
> + .hw_ops = &vfe_ops_780,
> + .formats_rdi = &vfe_formats_rdi_845,
> + .formats_pix = &vfe_formats_pix_845
> + }
> + },
> + /* VFE4 lite */
> + {
> + .regulators = {},
> + .clock = { "gcc_axi_hf", "cpas_ahb", "cpas_fast_ahb_clk", "vfe_lite_ahb",
> + "vfe_lite", "cpas_ife_lite", "camnoc_axi" },
> + .clock_rate = { { 0 },
> + { 80000000 },
> + { 300000000, 400000000 },
> + { 300000000, 400000000 },
> + { 400000000, 480000000 },
> + { 300000000, 400000000 },
> + { 300000000, 400000000 } },
> + .reg = { "vfe_lite1" },
> + .interrupt = { "vfe_lite1" },
> + .vfe = {
> + .line_num = 4,
> + .is_lite = true,
> + .hw_ops = &vfe_ops_780,
> + .formats_rdi = &vfe_formats_rdi_845,
> + .formats_pix = &vfe_formats_pix_845
> + }
> + },
> +};
> +
> static const struct resources_icc icc_res_sm8550[] = {
> {
> .name = "ahb",
> @@ -2861,11 +2980,13 @@ static const struct camss_resources sm8550_resources = {
> .pd_name = "top",
> .csiphy_res = csiphy_res_8550,
> .csid_res = csid_res_8550,
> + .vfe_res = vfe_res_8550,
> .csid_wrapper_res = &csid_wrapper_res_sm8550,
> .icc_res = icc_res_sm8550,
> .icc_path_num = ARRAY_SIZE(icc_res_sm8550),
> .csiphy_num = ARRAY_SIZE(csiphy_res_8550),
> .csid_num = ARRAY_SIZE(csid_res_8550),
> + .vfe_num = ARRAY_SIZE(vfe_res_8550),
> .link_entities = camss_link_entities
> };
>
Assuming you update the title of the patch, you can add:
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
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