diff mbox series

[v12,10/14] drm/mediatek: dpi: Add dpintf support

Message ID 20220620121028.29234-11-rex-bc.chen@mediatek.com (mailing list archive)
State New, archived
Headers show
Series drm/mediatek: Add MT8195 dp_intf driver | expand

Commit Message

Rex-BC Chen (陳柏辰) June 20, 2022, 12:10 p.m. UTC
From: Guillaume Ranquet <granquet@baylibre.com>

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:
 - 4 pixels for one round for dp_intf while dpi is 1 pixel for one round.
   Therefore, pixel clock and timing parameter should be divided by 4 for
   dp_intf.
 - Some features/functional components are not available for dpintf
   which are now excluded from code execution once is_dpintf is set.
   The main difference is some parts of hardware design between dp_intf
   and dpi.
 - 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
Jitao shi <jitao.shi@mediatek.com>.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
[Bo-Chen: Modify reviewers' comments.]
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_dpi.c          | 65 +++++++++++++++++++--
 drivers/gpu/drm/mediatek/mtk_dpi_regs.h     | 13 +++++
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c |  4 ++
 drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h |  1 +
 drivers/gpu/drm/mediatek/mtk_drm_drv.c      |  3 +
 5 files changed, 82 insertions(+), 4 deletions(-)

Comments

CK Hu (胡俊光) June 21, 2022, 2:32 a.m. UTC | #1
Hi, Bo-Chen:

On Mon, 2022-06-20 at 20:10 +0800, Bo-Chen Chen wrote:
> From: Guillaume Ranquet <granquet@baylibre.com>
> 
> 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:
>  - 4 pixels for one round for dp_intf while dpi is 1 pixel for one
> round.
>    Therefore, pixel clock and timing parameter should be divided by 4
> for
>    dp_intf.
>  - Some features/functional components are not available for dpintf
>    which are now excluded from code execution once is_dpintf is set.
>    The main difference is some parts of hardware design between
> dp_intf
>    and dpi.
>  - 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
> Jitao shi <jitao.shi@mediatek.com>.
> 
> Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
> Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
> [Bo-Chen: Modify reviewers' comments.]
> Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_dpi.c          | 65
> +++++++++++++++++++--
>  drivers/gpu/drm/mediatek/mtk_dpi_regs.h     | 13 +++++
>  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c |  4 ++
>  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h |  1 +
>  drivers/gpu/drm/mediatek/mtk_drm_drv.c      |  3 +
>  5 files changed, 82 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c
> b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index e186870ba3bc..2717b1741b7a 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -126,6 +126,7 @@ 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;
> @@ -513,6 +514,14 @@ static int mtk_dpi_set_display_mode(struct
> mtk_dpi *dpi,
>  	pll_rate = clk_get_rate(dpi->tvd_clk);
>  
>  	vm.pixelclock = pll_rate / factor;
> +
> +	/*
> +	 * For dp_intf, we need to divide clock by 4 because it's
> +	 * 4 pixels for one round while dpi is 1 pixel for one round.
> +	 */
> +	if (dpi->conf->is_dpintf)
> +		vm.pixelclock /= 4;

I this this should define dpi->conf->round_pixels rather than dpi-
>conf->is_dpintf.

> +
>  	if ((dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_LE) ||
>  	    (dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_BE))
>  		clk_set_rate(dpi->pixel_clk, vm.pixelclock * 2);
> @@ -534,6 +543,17 @@ static int mtk_dpi_set_display_mode(struct
> mtk_dpi *dpi,
>  	hsync.sync_width = vm.hsync_len;
>  	hsync.back_porch = vm.hback_porch;
>  	hsync.front_porch = vm.hfront_porch;
> +
> +	/*
> +	 * For dp_intf, we need to divide everything by 4 because it's
> +	 * 4 pixels for one round while dpi is 1 pixel for one round.
> +	 */
> +	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;
> +	}

Ditto.

> +
>  	hsync.shift_half_line = false;
>  	vsync_lodd.sync_width = vm.vsync_len;
>  	vsync_lodd.back_porch = vm.vback_porch;
> @@ -575,11 +595,16 @@ 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) {

Separate this to an independent patch and give a better config name
rather than 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);
>  
>  	return 0;
> @@ -817,6 +842,16 @@ static unsigned int mt8183_calculate_factor(int
> clock)
>  		return 2;
>  }
>  

[snip]

>  
>  #define EDGE_SEL_EN			BIT(5)
>  #define H_FRE_2N			BIT(25)
> +

This seems not related to dpintf support.

Regards,
CK

>  #endif /* __MTK_DPI_REGS_H */
>
Rex-BC Chen (陳柏辰) June 21, 2022, 8:46 a.m. UTC | #2
On Tue, 2022-06-21 at 10:32 +0800, CK Hu wrote:
> Hi, Bo-Chen:
> 
> On Mon, 2022-06-20 at 20:10 +0800, Bo-Chen Chen wrote:
> > From: Guillaume Ranquet <granquet@baylibre.com>
> > 
> > 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:
> >  - 4 pixels for one round for dp_intf while dpi is 1 pixel for one
> > round.
> >    Therefore, pixel clock and timing parameter should be divided by
> > 4
> > for
> >    dp_intf.
> >  - Some features/functional components are not available for dpintf
> >    which are now excluded from code execution once is_dpintf is
> > set.
> >    The main difference is some parts of hardware design between
> > dp_intf
> >    and dpi.
> >  - 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
> > Jitao shi <jitao.shi@mediatek.com>.
> > 
> > Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
> > Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
> > [Bo-Chen: Modify reviewers' comments.]
> > Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
> > ---
> >  drivers/gpu/drm/mediatek/mtk_dpi.c          | 65
> > +++++++++++++++++++--
> >  drivers/gpu/drm/mediatek/mtk_dpi_regs.h     | 13 +++++
> >  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c |  4 ++
> >  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h |  1 +
> >  drivers/gpu/drm/mediatek/mtk_drm_drv.c      |  3 +
> >  5 files changed, 82 insertions(+), 4 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c
> > b/drivers/gpu/drm/mediatek/mtk_dpi.c
> > index e186870ba3bc..2717b1741b7a 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> > @@ -126,6 +126,7 @@ 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;
> > @@ -513,6 +514,14 @@ static int mtk_dpi_set_display_mode(struct
> > mtk_dpi *dpi,
> >  	pll_rate = clk_get_rate(dpi->tvd_clk);
> >  
> >  	vm.pixelclock = pll_rate / factor;
> > +
> > +	/*
> > +	 * For dp_intf, we need to divide clock by 4 because it's
> > +	 * 4 pixels for one round while dpi is 1 pixel for one round.
> > +	 */
> > +	if (dpi->conf->is_dpintf)
> > +		vm.pixelclock /= 4;
> 
> I this this should define dpi->conf->round_pixels rather than dpi-
> > conf->is_dpintf.

ok, I will use this config and drop is_dpintf.

> > +
> >  	if ((dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_LE) ||
> >  	    (dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_BE))
> >  		clk_set_rate(dpi->pixel_clk, vm.pixelclock * 2);
> > @@ -534,6 +543,17 @@ static int mtk_dpi_set_display_mode(struct
> > mtk_dpi *dpi,
> >  	hsync.sync_width = vm.hsync_len;
> >  	hsync.back_porch = vm.hback_porch;
> >  	hsync.front_porch = vm.hfront_porch;
> > +
> > +	/*
> > +	 * For dp_intf, we need to divide everything by 4 because it's
> > +	 * 4 pixels for one round while dpi is 1 pixel for one round.
> > +	 */
> > +	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;
> > +	}
> 
> Ditto.
> 
> > +
> >  	hsync.shift_half_line = false;
> >  	vsync_lodd.sync_width = vm.vsync_len;
> >  	vsync_lodd.back_porch = vm.vback_porch;
> > @@ -575,11 +595,16 @@ 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) {
> 
> Separate this to an independent patch and give a better config name
> rather than dpi->conf->is_dpintf.
> 

this is separate config.
I will modify like this:
add new config "input_2pixel" for input two pixels in this patch:
mtk_dpi_mask(dpi, DPI_CON, DPINTF_INPUT_2P_EN,
			     DPINTF_INPUT_2P_EN);

and create another patch to add config "support_direct_pin"
this config is only used for dpi which could be directly connect to
pins while dp_intf is not.

+       if (dpi->conf->support_direct_pin) {
+               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);
+       }

BRs,
Bo-Chen
> > +		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);
> >  
> >  	return 0;
> > @@ -817,6 +842,16 @@ static unsigned int
> > mt8183_calculate_factor(int
> > clock)
> >  		return 2;
> >  }
> >  
> 
> [snip]
> 
> >  
> >  #define EDGE_SEL_EN			BIT(5)
> >  #define H_FRE_2N			BIT(25)
> > +
> 
> This seems not related to dpintf support.
> 
> Regards,
> CK
> 
> >  #endif /* __MTK_DPI_REGS_H */
> > 
> 
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index e186870ba3bc..2717b1741b7a 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -126,6 +126,7 @@  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;
@@ -513,6 +514,14 @@  static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
 	pll_rate = clk_get_rate(dpi->tvd_clk);
 
 	vm.pixelclock = pll_rate / factor;
+
+	/*
+	 * For dp_intf, we need to divide clock by 4 because it's
+	 * 4 pixels for one round while dpi is 1 pixel for one round.
+	 */
+	if (dpi->conf->is_dpintf)
+		vm.pixelclock /= 4;
+
 	if ((dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_LE) ||
 	    (dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_BE))
 		clk_set_rate(dpi->pixel_clk, vm.pixelclock * 2);
@@ -534,6 +543,17 @@  static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
 	hsync.sync_width = vm.hsync_len;
 	hsync.back_porch = vm.hback_porch;
 	hsync.front_porch = vm.hfront_porch;
+
+	/*
+	 * For dp_intf, we need to divide everything by 4 because it's
+	 * 4 pixels for one round while dpi is 1 pixel for one round.
+	 */
+	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;
+	}
+
 	hsync.shift_half_line = false;
 	vsync_lodd.sync_width = vm.vsync_len;
 	vsync_lodd.back_porch = vm.vback_porch;
@@ -575,11 +595,16 @@  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);
 
 	return 0;
@@ -817,6 +842,16 @@  static unsigned int mt8183_calculate_factor(int clock)
 		return 2;
 }
 
+static unsigned int mt8195_dpintf_calculate_factor(int clock)
+{
+	if (clock < 70000)
+		return 4;
+	else if (clock < 200000)
+		return 2;
+	else
+		return 1;
+}
+
 static const u32 mt8173_output_fmts[] = {
 	MEDIA_BUS_FMT_RGB888_1X24,
 };
@@ -826,6 +861,12 @@  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_conf mt8173_conf = {
 	.cal_factor = mt8173_calculate_factor,
 	.reg_h_fre_con = 0xe0,
@@ -887,6 +928,19 @@  static const struct mtk_dpi_conf mt8192_conf = {
 	.csc_enable_bit = CSC_ENABLE,
 };
 
+static const struct mtk_dpi_conf mt8195_dpintf_conf = {
+	.cal_factor = mt8195_dpintf_calculate_factor,
+	.max_clock_khz = 600000,
+	.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,
+};
+
 static int mtk_dpi_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -1009,6 +1063,9 @@  static const struct of_device_id mtk_dpi_of_ids[] = {
 	{ .compatible = "mediatek,mt8192-dpi",
 	  .data = &mt8192_conf,
 	},
+	{ .compatible = "mediatek,mt8195-dp_intf",
+	  .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..f7f0272dbd6a 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
+++ b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
@@ -40,9 +40,13 @@ 
 #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			1
 #define CH_SWAP_MASK			(0x7 << 0)
 #define SWAP_RGB			0x00
 #define SWAP_GBR			0x01
@@ -80,8 +84,10 @@ 
 #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 +99,30 @@ 
 #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 +229,5 @@ 
 
 #define EDGE_SEL_EN			BIT(5)
 #define H_FRE_2N			BIT(25)
+
 #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 2aab1e1eda36..5bef085714a1 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -427,6 +427,7 @@  static const char * const mtk_ddp_comp_stem[MTK_DDP_COMP_TYPE_MAX] = {
 	[MTK_DISP_RDMA] = "rdma",
 	[MTK_DISP_UFOE] = "ufoe",
 	[MTK_DISP_WDMA] = "wdma",
+	[MTK_DP_INTF] = "dp-intf",
 	[MTK_DPI] = "dpi",
 	[MTK_DSI] = "dsi",
 };
@@ -450,6 +451,8 @@  static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_DRM_ID_MAX]
 	[DDP_COMPONENT_DRM_OVL_ADAPTOR]	= { MTK_DISP_OVL_ADAPTOR,	0, &ddp_ovl_adaptor },
 	[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 },
 	[DDP_COMPONENT_DSI0]		= { MTK_DSI,			0, &ddp_dsi },
 	[DDP_COMPONENT_DSI1]		= { MTK_DSI,			1, &ddp_dsi },
 	[DDP_COMPONENT_DSI2]		= { MTK_DSI,			2, &ddp_dsi },
@@ -575,6 +578,7 @@  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 af9a6671f9c4..3084cc4e2830 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -38,6 +38,7 @@  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 78e79c8449c8..3b885ad61ac3 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -788,6 +788,8 @@  static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
 	  .data = (void *)MTK_DPI },
 	{ .compatible = "mediatek,mt8192-dpi",
 	  .data = (void *)MTK_DPI },
+	{ .compatible = "mediatek,mt8195-dp_intf",
+	  .data = (void *)MTK_DP_INTF },
 	{ .compatible = "mediatek,mt2701-dsi",
 	  .data = (void *)MTK_DSI },
 	{ .compatible = "mediatek,mt8173-dsi",
@@ -931,6 +933,7 @@  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_DP_INTF ||
 		    comp_type == MTK_DPI ||
 		    comp_type == MTK_DSI) {
 			dev_info(dev, "Adding component match for %pOF\n",