diff mbox series

[v8,10/19] drm/mediatek: dpi: move swap_shift to board config

Message ID 20220218145437.18563-11-granquet@baylibre.com
State Superseded
Headers show
Series drm/mediatek: Add mt8195 DisplayPort driver | expand

Commit Message

Guillaume Ranquet Feb. 18, 2022, 2:54 p.m. UTC 
Add flexibility by moving the swap shift value to board config

Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
---
 drivers/gpu/drm/mediatek/mtk_dpi.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

Comments

Chun-Kuang Hu Feb. 21, 2022, 3:24 a.m. UTC | #1 
Hi, Guillaume:

Guillaume Ranquet <granquet@baylibre.com> 於 2022年2月18日 週五 下午10:56寫道：
>
> Add flexibility by moving the swap shift value to board config
>
> Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_dpi.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index 0d3acd08ea358..ec221e24e0fee 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -131,6 +131,7 @@ struct mtk_dpi_conf {
>         u32 dimension_mask;
>         // Mask used for HSIZE and VSIZE (no shift)
>         u32 hvsize_mask;
> +       u32 channel_swap_shift;
>         const struct mtk_dpi_yc_limit *limit;
>  };
>
> @@ -349,7 +350,8 @@ static void mtk_dpi_config_channel_swap(struct mtk_dpi *dpi,
>                 break;
>         }
>
> -       mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, val << CH_SWAP, CH_SWAP_MASK);
> +       mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, val << CH_SWAP,
> +                    CH_SWAP_MASK << dpi->conf->channel_swap_shift);

This may be wrong because of these definition:

#define DPINTF_CH_SWAP BIT(1)
#define DPINTF_CH_SWAP_MASK (0x7 << 1)

Regards,
Chun-Kuang.

>  }
>
>  static void mtk_dpi_config_yuv422_enable(struct mtk_dpi *dpi, bool enable)
> @@ -821,6 +823,7 @@ static const struct mtk_dpi_conf mt8173_conf = {
>         .swap_input_support = true,
>         .dimension_mask = HPW_MASK,
>         .hvsize_mask = HSIZE_MASK,
> +       .channel_swap_shift = CH_SWAP,
>         .limit = &mtk_dpi_limit,
>  };
>
> @@ -835,6 +838,7 @@ static const struct mtk_dpi_conf mt2701_conf = {
>         .swap_input_support = true,
>         .dimension_mask = HPW_MASK,
>         .hvsize_mask = HSIZE_MASK,
> +       .channel_swap_shift = CH_SWAP,
>         .limit = &mtk_dpi_limit,
>  };
>
> @@ -848,6 +852,7 @@ static const struct mtk_dpi_conf mt8183_conf = {
>         .swap_input_support = true,
>         .dimension_mask = HPW_MASK,
>         .hvsize_mask = HSIZE_MASK,
> +       .channel_swap_shift = CH_SWAP,
>         .limit = &mtk_dpi_limit,
>  };
>
> @@ -861,6 +866,7 @@ static const struct mtk_dpi_conf mt8192_conf = {
>         .swap_input_support = true,
>         .dimension_mask = HPW_MASK,
>         .hvsize_mask = HSIZE_MASK,
> +       .channel_swap_shift = CH_SWAP,
>         .limit = &mtk_dpi_limit,
>  };
>
> --
> 2.34.1
>
AngeloGioacchino Del Regno Feb. 21, 2022, 2:31 p.m. UTC | #2 
Il 18/02/22 15:54, Guillaume Ranquet ha scritto:
> Add flexibility by moving the swap shift value to board config
> 

Same board->SoC as all the other commits..

> Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
> ---
>   drivers/gpu/drm/mediatek/mtk_dpi.c | 8 +++++++-
>   1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index 0d3acd08ea358..ec221e24e0fee 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -131,6 +131,7 @@ struct mtk_dpi_conf {
>   	u32 dimension_mask;
>   	// Mask used for HSIZE and VSIZE (no shift)
>   	u32 hvsize_mask;
> +	u32 channel_swap_shift;
>   	const struct mtk_dpi_yc_limit *limit;
>   };
>   
> @@ -349,7 +350,8 @@ static void mtk_dpi_config_channel_swap(struct mtk_dpi *dpi,
>   		break;
>   	}
>   
> -	mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, val << CH_SWAP, CH_SWAP_MASK);
> +	mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, val << CH_SWAP,
> +		     CH_SWAP_MASK << dpi->conf->channel_swap_shift);

I would say that this should be instead:
	mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING,

		     val << dpi->conf->channel_swap_shift, CH_SWAP_MASK);


>   }
>   
>   static void mtk_dpi_config_yuv422_enable(struct mtk_dpi *dpi, bool enable)
> @@ -821,6 +823,7 @@ static const struct mtk_dpi_conf mt8173_conf = {
>   	.swap_input_support = true,
>   	.dimension_mask = HPW_MASK,
>   	.hvsize_mask = HSIZE_MASK,
> +	.channel_swap_shift = CH_SWAP,
>   	.limit = &mtk_dpi_limit,
>   };
>   
> @@ -835,6 +838,7 @@ static const struct mtk_dpi_conf mt2701_conf = {
>   	.swap_input_support = true,
>   	.dimension_mask = HPW_MASK,
>   	.hvsize_mask = HSIZE_MASK,
> +	.channel_swap_shift = CH_SWAP,
>   	.limit = &mtk_dpi_limit,
>   };
>   
> @@ -848,6 +852,7 @@ static const struct mtk_dpi_conf mt8183_conf = {
>   	.swap_input_support = true,
>   	.dimension_mask = HPW_MASK,
>   	.hvsize_mask = HSIZE_MASK,
> +	.channel_swap_shift = CH_SWAP,
>   	.limit = &mtk_dpi_limit,
>   };
>   
> @@ -861,6 +866,7 @@ static const struct mtk_dpi_conf mt8192_conf = {
>   	.swap_input_support = true,
>   	.dimension_mask = HPW_MASK,
>   	.hvsize_mask = HSIZE_MASK,
> +	.channel_swap_shift = CH_SWAP,
>   	.limit = &mtk_dpi_limit,
>   };
>
Guillaume Ranquet Feb. 25, 2022, 11:10 a.m. UTC | #3 
Quoting Chun-Kuang Hu (2022-02-21 04:24:32)
> Hi, Guillaume:
>
> Guillaume Ranquet <granquet@baylibre.com> 於 2022年2月18日 週五 下午10:56寫道：
> >
> > Add flexibility by moving the swap shift value to board config
> >
> > Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
> > ---
> >  drivers/gpu/drm/mediatek/mtk_dpi.c | 8 +++++++-
> >  1 file changed, 7 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
> > index 0d3acd08ea358..ec221e24e0fee 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> > @@ -131,6 +131,7 @@ struct mtk_dpi_conf {
> >         u32 dimension_mask;
> >         // Mask used for HSIZE and VSIZE (no shift)
> >         u32 hvsize_mask;
> > +       u32 channel_swap_shift;
> >         const struct mtk_dpi_yc_limit *limit;
> >  };
> >
> > @@ -349,7 +350,8 @@ static void mtk_dpi_config_channel_swap(struct mtk_dpi *dpi,
> >                 break;
> >         }
> >
> > -       mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, val << CH_SWAP, CH_SWAP_MASK);
> > +       mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, val << CH_SWAP,
> > +                    CH_SWAP_MASK << dpi->conf->channel_swap_shift);
>
> This may be wrong because of these definition:
>
> #define DPINTF_CH_SWAP BIT(1)
> #define DPINTF_CH_SWAP_MASK (0x7 << 1)
>
> Regards,
> Chun-Kuang.
>

You are right, DPINTF_CH_SWAP_MASK is unused, which is wrong on multiple levels.

> >  }
> >
> >  static void mtk_dpi_config_yuv422_enable(struct mtk_dpi *dpi, bool enable)
> > @@ -821,6 +823,7 @@ static const struct mtk_dpi_conf mt8173_conf = {
> >         .swap_input_support = true,
> >         .dimension_mask = HPW_MASK,
> >         .hvsize_mask = HSIZE_MASK,
> > +       .channel_swap_shift = CH_SWAP,
> >         .limit = &mtk_dpi_limit,
> >  };
> >
> > @@ -835,6 +838,7 @@ static const struct mtk_dpi_conf mt2701_conf = {
> >         .swap_input_support = true,
> >         .dimension_mask = HPW_MASK,
> >         .hvsize_mask = HSIZE_MASK,
> > +       .channel_swap_shift = CH_SWAP,
> >         .limit = &mtk_dpi_limit,
> >  };
> >
> > @@ -848,6 +852,7 @@ static const struct mtk_dpi_conf mt8183_conf = {
> >         .swap_input_support = true,
> >         .dimension_mask = HPW_MASK,
> >         .hvsize_mask = HSIZE_MASK,
> > +       .channel_swap_shift = CH_SWAP,
> >         .limit = &mtk_dpi_limit,
> >  };
> >
> > @@ -861,6 +866,7 @@ static const struct mtk_dpi_conf mt8192_conf = {
> >         .swap_input_support = true,
> >         .dimension_mask = HPW_MASK,
> >         .hvsize_mask = HSIZE_MASK,
> > +       .channel_swap_shift = CH_SWAP,
> >         .limit = &mtk_dpi_limit,
> >  };
> >
> > --
> > 2.34.1
> >
diff mbox series

Patch

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 0d3acd08ea358..ec221e24e0fee 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -131,6 +131,7 @@  struct mtk_dpi_conf {
 	u32 dimension_mask;
 	// Mask used for HSIZE and VSIZE (no shift)
 	u32 hvsize_mask;
+	u32 channel_swap_shift;
 	const struct mtk_dpi_yc_limit *limit;
 };
 
@@ -349,7 +350,8 @@  static void mtk_dpi_config_channel_swap(struct mtk_dpi *dpi,
 		break;
 	}
 
-	mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, val << CH_SWAP, CH_SWAP_MASK);
+	mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, val << CH_SWAP,
+		     CH_SWAP_MASK << dpi->conf->channel_swap_shift);
 }
 
 static void mtk_dpi_config_yuv422_enable(struct mtk_dpi *dpi, bool enable)
@@ -821,6 +823,7 @@  static const struct mtk_dpi_conf mt8173_conf = {
 	.swap_input_support = true,
 	.dimension_mask = HPW_MASK,
 	.hvsize_mask = HSIZE_MASK,
+	.channel_swap_shift = CH_SWAP,
 	.limit = &mtk_dpi_limit,
 };
 
@@ -835,6 +838,7 @@  static const struct mtk_dpi_conf mt2701_conf = {
 	.swap_input_support = true,
 	.dimension_mask = HPW_MASK,
 	.hvsize_mask = HSIZE_MASK,
+	.channel_swap_shift = CH_SWAP,
 	.limit = &mtk_dpi_limit,
 };
 
@@ -848,6 +852,7 @@  static const struct mtk_dpi_conf mt8183_conf = {
 	.swap_input_support = true,
 	.dimension_mask = HPW_MASK,
 	.hvsize_mask = HSIZE_MASK,
+	.channel_swap_shift = CH_SWAP,
 	.limit = &mtk_dpi_limit,
 };
 
@@ -861,6 +866,7 @@  static const struct mtk_dpi_conf mt8192_conf = {
 	.swap_input_support = true,
 	.dimension_mask = HPW_MASK,
 	.hvsize_mask = HSIZE_MASK,
+	.channel_swap_shift = CH_SWAP,
 	.limit = &mtk_dpi_limit,
 };