Re: [PATCH v10 14/21] drm/mediatek: dpi: Add dpintf support

From: Rex-BC Chen
Date: Mon Jun 13 2022 - 02:11:35 EST

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In reply to: Rex-BC Chen: "Re: [PATCH v10 14/21] drm/mediatek: dpi: Add dpintf support"
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On Wed, 2022-05-25 at 14:58 +0200, AngeloGioacchino Del Regno wrote:
> Il 23/05/22 12:47, Guillaume Ranquet ha scritto:
> > dpintf is the displayport interface hardware unit. This unit is
> > similar
> > to dpi and can reuse most of the code.
> >
> > This patch adds support for mt8195-dpintf to this dpi driver. Main
> > differences are:
> > - Some features/functional components are not available for
> > dpintf
> > which are now excluded from code execution once is_dpintf is
> > set
> > - dpintf can and needs to choose between different clockdividers
> > based
> > on the clockspeed. This is done by choosing a different clock
> > parent.
> > - There are two additional clocks that need to be managed. These
> > are
> > only set for dpintf and will be set to NULL if not supplied.
> > The
> > clk_* calls handle these as normal clocks then.
> > - Some register contents differ slightly between the two
> > components. To
> > work around this I added register bits/masks with a DPINTF_
> > prefix
> > and use them where different.
> >
> > Based on a separate driver for dpintf created by
> > Jason-JH.Lin <jason-jh.lin@xxxxxxxxxxxx>.
> >
>
> Only after finishing the review, I've noticed that I just wrote the
> same things
> that I wrote in my review for version 8... and if I recall correctly,
> this is not
> the first time that something like that happens.
>
> Please pay attention to what reviewers say, as to not waste anyone's
> time.
>

Hello Angelo,

I will help to fix these issue in next version.

>
> > Signed-off-by: Markus Schneider-Pargmann <msp@xxxxxxxxxxxx>
> > Signed-off-by: Guillaume Ranquet <granquet@xxxxxxxxxxxx>
> > ---
> > drivers/gpu/drm/mediatek/mtk_dpi.c | 126
> > +++++++++++++++++---
> > drivers/gpu/drm/mediatek/mtk_dpi_regs.h | 35 ++++++
> > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 8 ++
> > drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 1 +
> > drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 +-
> > include/linux/soc/mediatek/mtk-mmsys.h | 4 +-
> > 6 files changed, 159 insertions(+), 20 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c
> > b/drivers/gpu/drm/mediatek/mtk_dpi.c
> > index eb969c5c5c2e..763bfb700135 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> > @@ -71,6 +71,7 @@ struct mtk_dpi {
> > void __iomem *regs;
> > struct device *dev;
> > struct clk *engine_clk;
> > + struct clk *dpi_ck_cg;
> > struct clk *pixel_clk;
> > struct clk *tvd_clk;
> > int irq;
> > @@ -126,6 +127,7 @@ struct mtk_dpi_conf {
> > const u32 *output_fmts;
> > u32 num_output_fmts;
> > bool is_ck_de_pol;
> > + bool is_dpintf;
> > bool swap_input_support;
> > /* Mask used for HWIDTH, HPORCH, VSYNC_WIDTH and VSYNC_PORCH
> > (no shift) */
> > u32 dimension_mask;
> > @@ -438,6 +440,8 @@ static void mtk_dpi_power_off(struct mtk_dpi
> > *dpi)
> > mtk_dpi_disable(dpi);
> > clk_disable_unprepare(dpi->pixel_clk);
> > clk_disable_unprepare(dpi->engine_clk);
> > + clk_disable_unprepare(dpi->dpi_ck_cg);
> > + clk_disable_unprepare(dpi->tvd_clk);
> > }
> >
> > static int mtk_dpi_power_on(struct mtk_dpi *dpi)
> > @@ -447,12 +451,24 @@ static int mtk_dpi_power_on(struct mtk_dpi
> > *dpi)
> > if (++dpi->refcount != 1)
> > return 0;
> >
> > + ret = clk_prepare_enable(dpi->tvd_clk);
> > + if (ret) {
> > + dev_err(dpi->dev, "Failed to enable tvd pll: %d\n",
> > ret);
> > + goto err_pixel;
> > + }
> > +
> > ret = clk_prepare_enable(dpi->engine_clk);
> > if (ret) {
> > dev_err(dpi->dev, "Failed to enable engine clock:
> > %d\n", ret);
> > goto err_refcount;
> > }
> >
> > + ret = clk_prepare_enable(dpi->dpi_ck_cg);
> > + if (ret) {
> > + dev_err(dpi->dev, "Failed to enable dpi_ck_cg clock:
> > %d\n", ret);
> > + goto err_ck_cg;
> > + }
> > +
> > ret = clk_prepare_enable(dpi->pixel_clk);
> > if (ret) {
> > dev_err(dpi->dev, "Failed to enable pixel clock: %d\n",
> > ret);
> > @@ -466,6 +482,8 @@ static int mtk_dpi_power_on(struct mtk_dpi
> > *dpi)
> > return 0;
> >
> > err_pixel:
> > + clk_disable_unprepare(dpi->dpi_ck_cg);
> > +err_ck_cg:
> > clk_disable_unprepare(dpi->engine_clk);
> > err_refcount:
> > dpi->refcount--;
> > @@ -498,11 +516,11 @@ static int mtk_dpi_set_display_mode(struct
> > mtk_dpi *dpi,
> >
> > vm.pixelclock = pll_rate / factor;
> > if ((dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_LE) ||
> > - (dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_BE))
> > + (dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_BE)) {
>
> The indentation was perfect before that change...
>
> > clk_set_rate(dpi->pixel_clk, vm.pixelclock * 2);
> > - else
> > + } else {
> > clk_set_rate(dpi->pixel_clk, vm.pixelclock);
> > -
> > + }
> >
> > vm.pixelclock = clk_get_rate(dpi->pixel_clk);
> >
> > @@ -515,9 +533,15 @@ static int mtk_dpi_set_display_mode(struct
> > mtk_dpi *dpi,
> > MTK_DPI_POLARITY_FALLING :
> > MTK_DPI_POLARITY_RISING;
> > dpi_pol.vsync_pol = vm.flags & DISPLAY_FLAGS_VSYNC_HIGH ?
> > MTK_DPI_POLARITY_FALLING :
> > MTK_DPI_POLARITY_RISING;
> > - hsync.sync_width = vm.hsync_len;
> > - hsync.back_porch = vm.hback_porch;
> > - hsync.front_porch = vm.hfront_porch;
> > + if (dpi->conf->is_dpintf) {
> > + hsync.sync_width = vm.hsync_len / 4;
> > + hsync.back_porch = vm.hback_porch / 4;
> > + hsync.front_porch = vm.hfront_porch / 4;
> > + } else {
> > + hsync.sync_width = vm.hsync_len;
> > + hsync.back_porch = vm.hback_porch;
> > + hsync.front_porch = vm.hfront_porch;
> > + }
>
> This looks way better:
>
> hsync.sync_width = vm.hsync_len;
> hsync.back_porch = vm.hback_porch;
> hsync.front_porch = vm.hfront_porch;
>
> /* For DPINTF, we need to divide everything by 4 .. lanes? */
> if (dpi->conf->is_dpintf) {
> hsync.sync_width /= 4;
> hsync.back_porch /= 4;
> hsync.front_porch /= 4;
> }
>

ok.

> > hsync.shift_half_line = false;
> > vsync_lodd.sync_width = vm.vsync_len;
> > vsync_lodd.back_porch = vm.vback_porch;
> > @@ -559,13 +583,20 @@ static int mtk_dpi_set_display_mode(struct
> > mtk_dpi *dpi,
> > mtk_dpi_config_channel_limit(dpi);
> > mtk_dpi_config_bit_num(dpi, dpi->bit_num);
> > mtk_dpi_config_channel_swap(dpi, dpi->channel_swap);
> > - mtk_dpi_config_yc_map(dpi, dpi->yc_map);
> > mtk_dpi_config_color_format(dpi, dpi->color_format);
> > - mtk_dpi_config_2n_h_fre(dpi);
> > - mtk_dpi_dual_edge(dpi);
> > - mtk_dpi_config_disable_edge(dpi);
> > + if (dpi->conf->is_dpintf) {
> > + mtk_dpi_mask(dpi, DPI_CON, DPINTF_INPUT_2P_EN,
> > + DPINTF_INPUT_2P_EN);
> > + } else {
> > + mtk_dpi_config_yc_map(dpi, dpi->yc_map);
> > + mtk_dpi_config_2n_h_fre(dpi);
> > + mtk_dpi_dual_edge(dpi);
> > + mtk_dpi_config_disable_edge(dpi);
> > + }
> > mtk_dpi_sw_reset(dpi, false);
> >
> > + mtk_dpi_enable(dpi);
> > +
> > return 0;
> > }
> >
> > @@ -608,7 +639,6 @@ static u32
> > *mtk_dpi_bridge_atomic_get_input_bus_fmts(struct drm_bridge
> > *bridge,
> > u32 *input_fmts;
> >
> > *num_input_fmts = 0;
> > -
>
> Removing this line is not part of adding dpintf support, so don't do
> that.
>

ok.

> > input_fmts = kcalloc(1, sizeof(*input_fmts),
> > GFP_KERNEL);
> > if (!input_fmts)
> > @@ -634,15 +664,18 @@ static int mtk_dpi_bridge_atomic_check(struct
> > drm_bridge *bridge,
> > if (dpi->conf->num_output_fmts)
> > out_bus_format = dpi->conf->output_fmts[0];
> >
> > - dev_dbg(dpi->dev, "input format 0x%04x, output format
> > 0x%04x\n",
> > - bridge_state->input_bus_cfg.format,
> > - bridge_state->output_bus_cfg.format);
> > + dev_info(dpi->dev, "input format 0x%04x, output format
> > 0x%04x\n",
> > + bridge_state->input_bus_cfg.format,
> > + bridge_state->output_bus_cfg.format);
>
> This message is not giving any constantly changing information, nor
> any one that
> is interesting for the user: keep this as dev_dbg().
>

ok.

> >
> > dpi->output_fmt = out_bus_format;
> > dpi->bit_num = MTK_DPI_OUT_BIT_NUM_8BITS;
> > dpi->channel_swap = MTK_DPI_OUT_CHANNEL_SWAP_RGB;
> > dpi->yc_map = MTK_DPI_OUT_YC_MAP_RGB;
> > - dpi->color_format = MTK_DPI_COLOR_FORMAT_RGB;
> > + if (out_bus_format == MEDIA_BUS_FMT_YUYV8_1X16)
> > + dpi->color_format =
> > MTK_DPI_COLOR_FORMAT_YCBCR_422_FULL;
> > + else
> > + dpi->color_format = MTK_DPI_COLOR_FORMAT_RGB;
> >
> > return 0;
> > }
> > @@ -687,7 +720,7 @@ mtk_dpi_bridge_mode_valid(struct drm_bridge
> > *bridge,
> > {
> > struct mtk_dpi *dpi = bridge_to_dpi(bridge);
> >
> > - if (mode->clock > dpi->conf->max_clock_khz)
> > + if (dpi->conf->max_clock_khz && mode->clock > dpi->conf-
> > >max_clock_khz)
> > return MODE_CLOCK_HIGH;
> >
> > return MODE_OK;
> > @@ -801,6 +834,16 @@ static unsigned int
> > mt8183_calculate_factor(int clock)
> > return 2;
> > }
> >
> > +static unsigned int mt8195_dpintf_calculate_factor(int clock)
> > +{
> > + if (clock < 70000)
>
> is 70000 intentional? Or did you mean 700000?
>

70000 is correct, the unit for this is KHz.

> > + return 4;
> > + else if (clock < 200000)
> > + return 2;
> > + else
> > + return 1;
> > +}
> > +
> > static const u32 mt8173_output_fmts[] = {
> > MEDIA_BUS_FMT_RGB888_1X24,
> > };
> > @@ -810,6 +853,12 @@ static const u32 mt8183_output_fmts[] = {
> > MEDIA_BUS_FMT_RGB888_2X12_BE,
> > };
> >
> > +static const u32 mt8195_output_fmts[] = {
> > + MEDIA_BUS_FMT_RGB888_1X24,
> > + MEDIA_BUS_FMT_YUV8_1X24,
> > + MEDIA_BUS_FMT_YUYV8_1X16,
> > +};
> > +
> > static const struct mtk_dpi_yc_limit mtk_dpi_limit = {
> > .c_bottom = 0x0010,
> > .c_top = 0x0FE0,
> > @@ -817,6 +866,13 @@ static const struct mtk_dpi_yc_limit
> > mtk_dpi_limit = {
> > .y_top = 0x0FE0,
> > };
> >
> > +static const struct mtk_dpi_yc_limit mtk_dpintf_limit = {
> > + .c_bottom = 0x0000,
> > + .c_top = 0xFFF,
> > + .y_bottom = 0x0000,
> > + .y_top = 0xFFF,
> > +};
> > +
> > static const struct mtk_dpi_conf mt8173_conf = {
> > .cal_factor = mt8173_calculate_factor,
> > .reg_h_fre_con = 0xe0,
> > @@ -882,6 +938,19 @@ static const struct mtk_dpi_conf mt8192_conf =
> > {
> > .limit = &mtk_dpi_limit,
> > };
> >
> > +static const struct mtk_dpi_conf mt8195_dpintf_conf = {
> > + .cal_factor = mt8195_dpintf_calculate_factor,
> > + .output_fmts = mt8195_output_fmts,
> > + .num_output_fmts = ARRAY_SIZE(mt8195_output_fmts),
> > + .is_dpintf = true,
> > + .dimension_mask = DPINTF_HPW_MASK,
> > + .hvsize_mask = DPINTF_HSIZE_MASK,
> > + .channel_swap_shift = DPINTF_CH_SWAP,
> > + .yuv422_en_bit = DPINTF_YUV422_EN,
> > + .csc_enable_bit = DPINTF_CSC_ENABLE,
> > + .limit = &mtk_dpintf_limit,
> > +};
> > +
> > static int mtk_dpi_probe(struct platform_device *pdev)
> > {
> > struct device *dev = &pdev->dev;
> > @@ -929,7 +998,27 @@ static int mtk_dpi_probe(struct
> > platform_device *pdev)
> > if (IS_ERR(dpi->engine_clk)) {
> > ret = PTR_ERR(dpi->engine_clk);
> > if (ret != -EPROBE_DEFER)
> > - dev_err(dev, "Failed to get engine clock:
> > %d\n", ret);
> > + dev_err(dev, "Failed to get engine clock:
> > %d\n",
> > + ret);
>
> Why are you breaking this line?
>

I will fix this.

> > +
> > + return ret;
> > + }
> > +
> > + dpi->dpi_ck_cg = devm_clk_get_optional(dev, "ck_cg");
> > + if (IS_ERR(dpi->dpi_ck_cg)) {
> > + ret = PTR_ERR(dpi->dpi_ck_cg);
> > + if (ret != -EPROBE_DEFER)
> > + dev_err(dev, "Failed to get dpi ck cg clock:
> > %d\n",
> > + ret);
> > +
> > + return ret;
> > + }
> > +
>
> You're getting this clock twice, what happened here?
>
> P.S.: As I explained on the dt-bindings patch, you likely don't even
> need this
> clock at all.
>

I will remove this.
For this clock gate, we stiil need to enable it.

I reply in binding patch.

I rename it as pll_gate.

> > + dpi->dpi_ck_cg = devm_clk_get_optional(dev, "ck_cg");
> > + if (IS_ERR(dpi->dpi_ck_cg)) {
> > + ret = PTR_ERR(dpi->dpi_ck_cg);
> > + if (ret != -EPROBE_DEFER)
> > + dev_err(dev, "Failed to get dpi ck cg clock:
> > %d\n", ret);
> >
> > return ret;
> > }
> > @@ -1004,6 +1093,9 @@ static const struct of_device_id
> > mtk_dpi_of_ids[] = {
> > { .compatible = "mediatek,mt8192-dpi",
> > .data = &mt8192_conf,
> > },
> > + { .compatible = "mediatek,mt8195-dpintf",
> > + .data = &mt8195_dpintf_conf,
> > + },
> > { },
> > };
> > MODULE_DEVICE_TABLE(of, mtk_dpi_of_ids);
> > diff --git a/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
> > b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
> > index 3a02fabe1662..dd47dd3f2e4f 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
> > +++ b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
> > @@ -40,10 +40,15 @@
> > #define FAKE_DE_LEVEN BIT(21)
> > #define FAKE_DE_RODD BIT(22)
> > #define FAKE_DE_REVEN BIT(23)
> > +#define DPINTF_YUV422_EN BIT(24)
> > +#define DPINTF_CSC_ENABLE BIT(26)
> > +#define DPINTF_INPUT_2P_EN BIT(29)
> >
> > #define DPI_OUTPUT_SETTING 0x14
> > #define CH_SWAP 0
> > +#define DPINTF_CH_SWAP BIT(1)
> > #define CH_SWAP_MASK (0x7 << 0)
> > +#define DPINTF_CH_SWAP_MASK (0x7 << 1)
> > #define SWAP_RGB 0x00
> > #define SWAP_GBR 0x01
> > #define SWAP_BRG 0x02
> > @@ -80,8 +85,10 @@
> > #define DPI_SIZE 0x18
> > #define HSIZE 0
> > #define HSIZE_MASK (0x1FFF << 0)
> > +#define DPINTF_HSIZE_MASK (0xFFFF << 0)
> > #define VSIZE 16
> > #define VSIZE_MASK (0x1FFF << 16)
> > +#define DPINTF_VSIZE_MASK (0xFFFF << 16)
> >
> > #define DPI_DDR_SETTING 0x1C
> > #define DDR_EN BIT(0)
> > @@ -93,24 +100,30 @@
> > #define DPI_TGEN_HWIDTH 0x20
> > #define HPW 0
> > #define HPW_MASK (0xFFF << 0)
> > +#define DPINTF_HPW_MASK (0xFFFF << 0)
> >
> > #define DPI_TGEN_HPORCH 0x24
> > #define HBP 0
> > #define HBP_MASK (0xFFF << 0)
> > +#define DPINTF_HBP_MASK (0xFFFF << 0)
> > #define HFP 16
> > #define HFP_MASK (0xFFF << 16)
> > +#define DPINTF_HFP_MASK (0xFFFF << 16)
> >
> > #define DPI_TGEN_VWIDTH 0x28
> > #define DPI_TGEN_VPORCH 0x2C
> >
> > #define VSYNC_WIDTH_SHIFT 0
> > #define VSYNC_WIDTH_MASK (0xFFF << 0)
> > +#define DPINTF_VSYNC_WIDTH_MASK (0xFFFF << 0)
> > #define VSYNC_HALF_LINE_SHIFT 16
> > #define VSYNC_HALF_LINE_MASK BIT(16)
> > #define VSYNC_BACK_PORCH_SHIFT 0
> > #define VSYNC_BACK_PORCH_MASK (0xFFF << 0)
> > +#define DPINTF_VSYNC_BACK_PORCH_MASK (0xFFFF << 0)
> > #define VSYNC_FRONT_PORCH_SHIFT 16
> > #define VSYNC_FRONT_PORCH_MASK (0xFFF << 16)
> > +#define DPINTF_VSYNC_FRONT_PORCH_MASK (0xFFFF << 16)
> >
> > #define DPI_BG_HCNTL 0x30
> > #define BG_RIGHT (0x1FFF << 0)
> > @@ -217,4 +230,26 @@
> >
> > #define EDGE_SEL_EN BIT(5)
> > #define H_FRE_2N BIT(25)
> > +
> > +#define RGB_TO_JPEG 0x00
>
> This is 0x0
>
> > +#define RGB_TO_FULL709 0x01
>
> 0x1
>
> > +#define RGB_TO_BT601 0x02
>
> 0x2
>
> ...remove the unnecessary leading zeros, but... you're not ever
> using this set of definitions, so why are you even adding them?
>

ok, I will remove them.

> > +#define RGB_TO_BT709 0x03
> > +#define JPEG_TO_RGB 0x04
> > +#define FULL709_TO_RGB 0x05
> > +#define BT601_TO_RGB 0x06
> > +#define BT709_TO_RGB 0x07
> > +#define JPEG_TO_BT601 0x08
> > +#define JPEG_TO_BT709 0x09
> > +#define BT601_TO_JPEG 0xA
> > +#define BT709_TO_JPEG 0xB
> > +#define BT709_TO_BT601 0xC
> > +#define BT601_TO_BT709 0xD
> > +#define JPEG_TO_CERGB 0x14
> > +#define FULL709_TO_CERGB 0x15
> > +#define BT601_TO_CERGB 0x16
> > +#define BT709_TO_CERGB 0x17
> > +#define RGB_TO_CERGB 0x1C
> > +#define MATRIX_BIT BIT(8)
> > +#define EXT_MATRIX_EN BIT(12)
> > #endif /* __MTK_DPI_REGS_H */
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > index 245d0074e12d..3738665a712e 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> > @@ -419,6 +419,11 @@ static const char * const
> > mtk_ddp_comp_stem[MTK_DDP_COMP_TYPE_MAX] = {
> > [MTK_DISP_WDMA] = "wdma",
> > [MTK_DPI] = "dpi",
> > [MTK_DSI] = "dsi",
> > + [MTK_DP_INTF] = "dp-intf",
> > + [MTK_DISP_PWM] = "pwm",
> > + [MTK_DISP_MUTEX] = "mutex",
> > + [MTK_DISP_OD] = "od",
> > + [MTK_DISP_BLS] = "bls",
>
> Please keep alphabetic order.
>

Some of this are redundant, and I will remove them.

> > };
> >
> > struct mtk_ddp_comp_match {
> > @@ -439,6 +444,8 @@ static const struct mtk_ddp_comp_match
> > mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
> > [DDP_COMPONENT_DPI1] = { MTK_DPI,
> > 1, &ddp_dpi },
> > [DDP_COMPONENT_DSC0] = { MTK_DISP_DSC,
> > 0, &ddp_dsc },
> > [DDP_COMPONENT_DSC1] = { MTK_DISP_DSC,
> > 1, &ddp_dsc },
> > + [DDP_COMPONENT_DP_INTF0] = { MTK_DP_INTF, 0, &ddp_dpi
> > },
> > + [DDP_COMPONENT_DP_INTF1] = { MTK_DP_INTF, 1, &ddp_dpi
> > },
>
> Indentation issue. Fix it.
>

Some of this are redundant, and I will remove them.

> > [DDP_COMPONENT_DSI0] = { MTK_DSI,
> > 0, &ddp_dsi },
> > [DDP_COMPONENT_DSI1] = { MTK_DSI,
> > 1, &ddp_dsi },
> > [DDP_COMPONENT_DSI2] = { MTK_DSI,
> > 2, &ddp_dsi },
> > @@ -565,6 +572,7 @@ int mtk_ddp_comp_init(struct device_node *node,
> > struct mtk_ddp_comp *comp,
> > type == MTK_DISP_PWM ||
> > type == MTK_DISP_RDMA ||
> > type == MTK_DPI ||
> > + type == MTK_DP_INTF ||
> > type == MTK_DSI)
> > return 0;
> >
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > index 825d763d2378..c4e683f46a95 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
> > @@ -37,6 +37,7 @@ enum mtk_ddp_comp_type {
> > MTK_DISP_UFOE,
> > MTK_DISP_WDMA,
> > MTK_DPI,
> > + MTK_DP_INTF,
> > MTK_DSI,
> > MTK_DDP_COMP_TYPE_MAX,
> > };
> > diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> > b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> > index a2a783fc580e..e25ac61aac08 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> > @@ -690,6 +690,8 @@ static const struct of_device_id
> > mtk_ddp_comp_dt_ids[] = {
> > .data = (void *)MTK_DPI },
> > { .compatible = "mediatek,mt8183-dpi",
> > .data = (void *)MTK_DPI },
> > + { .compatible = "mediatek,mt8195-dpintf",
> > + .data = (void *)MTK_DP_INTF },
> > { .compatible = "mediatek,mt2701-dsi",
> > .data = (void *)MTK_DSI },
> > { .compatible = "mediatek,mt8173-dsi",
> > @@ -801,8 +803,9 @@ static int mtk_drm_probe(struct platform_device
> > *pdev)
> > comp_type == MTK_DISP_OVL_2L ||
> > comp_type == MTK_DISP_OVL_ADAPTOR ||
> > comp_type == MTK_DISP_RDMA ||
> > + comp_type == MTK_DSI ||
> > comp_type == MTK_DPI ||
> > - comp_type == MTK_DSI) {
> > + comp_type == MTK_DP_INTF) {
>
> These were nice and alphabetically ordered, why are you moving
> MTK_DSI up there?!
>
> comp_type == MTK_DISP_RDMA ||
> comp_type == MTK_DP_INTF ||
> comp_type == MTK_DPI ||
> comp_type == MTK_DSI) {
>
> ... that's how it should look like.
>

Some of this are redundant, and I will remove them.

> > dev_info(dev, "Adding component match for
> > %pOF\n",
> > node);
> > drm_of_component_match_add(dev, &match,
> > component_compare_of,
> > diff --git a/include/linux/soc/mediatek/mtk-mmsys.h
> > b/include/linux/soc/mediatek/mtk-mmsys.h
> > index 3e998bfb795a..e4b84c347201 100644
> > --- a/include/linux/soc/mediatek/mtk-mmsys.h
> > +++ b/include/linux/soc/mediatek/mtk-mmsys.h
> > @@ -21,12 +21,12 @@ enum mtk_ddp_comp_id {
> > DDP_COMPONENT_COLOR0,
> > DDP_COMPONENT_COLOR1,
> > DDP_COMPONENT_DITHER,
> > - DDP_COMPONENT_DP_INTF0,
> > - DDP_COMPONENT_DP_INTF1,
> > DDP_COMPONENT_DPI0,
> > DDP_COMPONENT_DPI1,
> > DDP_COMPONENT_DSC0,
> > DDP_COMPONENT_DSC1,
> > + DDP_COMPONENT_DP_INTF0,
> > + DDP_COMPONENT_DP_INTF1,
>
> Why are you moving this?!
>

I will fix this.

BRs,
Bo-Chen

> > DDP_COMPONENT_DSI0,
> > DDP_COMPONENT_DSI1,
> > DDP_COMPONENT_DSI2,
>
>

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