Hi Geert,

Thank you for the patch.


On Thu, Jun 22, 2023 at 11:21:34AM +0200, Geert Uytterhoeven wrote:
> Replace the custom shmob_drm_interface enumeration values with standard
> media bus formats.  This simplifies driver handling of bus formats and
> prepares for DT support.
> 
> Signed-off-by: Geert Uytterhoeven <[email protected]>

Reviewed-by: Laurent Pinchart <[email protected]>

> ---
>  .../gpu/drm/renesas/shmobile/shmob_drm_drv.c  | 52 +++++++++++++------
>  include/linux/platform_data/shmob_drm.h       | 13 +----
>  2 files changed, 38 insertions(+), 27 deletions(-)
> 
> diff --git a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c 
> b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
> index 1a1d66c6e817e227..e5be0ae99bd970be 100644
> --- a/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
> +++ b/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
> @@ -9,6 +9,7 @@
>  
>  #include <linux/clk.h>
>  #include <linux/io.h>
> +#include <linux/media-bus-format.h>
>  #include <linux/mm.h>
>  #include <linux/module.h>
>  #include <linux/platform_device.h>
> @@ -34,24 +35,45 @@
>  
>  static int shmob_drm_init_interface(struct shmob_drm_device *sdev)
>  {
> -     static const u32 ldmt1r[] = {
> -             [SHMOB_DRM_IFACE_RGB8] = LDMT1R_MIFTYP_RGB8,
> -             [SHMOB_DRM_IFACE_RGB9] = LDMT1R_MIFTYP_RGB9,
> -             [SHMOB_DRM_IFACE_RGB12A] = LDMT1R_MIFTYP_RGB12A,
> -             [SHMOB_DRM_IFACE_RGB12B] = LDMT1R_MIFTYP_RGB12B,
> -             [SHMOB_DRM_IFACE_RGB16] = LDMT1R_MIFTYP_RGB16,
> -             [SHMOB_DRM_IFACE_RGB18] = LDMT1R_MIFTYP_RGB18,
> -             [SHMOB_DRM_IFACE_RGB24] = LDMT1R_MIFTYP_RGB24,
> -             [SHMOB_DRM_IFACE_YUV422] = LDMT1R_MIFTYP_YCBCR,
> -     };
> -
> -     if (sdev->pdata->iface.interface >= ARRAY_SIZE(ldmt1r)) {
> -             dev_err(sdev->dev, "invalid interface type %u\n",
> -                     sdev->pdata->iface.interface);
> +     switch (sdev->pdata->iface.bus_fmt) {
> +     case MEDIA_BUS_FMT_RGB888_3X8:
> +             sdev->ldmt1r = LDMT1R_MIFTYP_RGB8;
> +             break;
> +
> +     case MEDIA_BUS_FMT_RGB666_2X9_BE:
> +             sdev->ldmt1r = LDMT1R_MIFTYP_RGB9;
> +             break;
> +
> +     case MEDIA_BUS_FMT_RGB888_2X12_BE:
> +             sdev->ldmt1r = LDMT1R_MIFTYP_RGB12A;
> +             break;
> +
> +     case MEDIA_BUS_FMT_RGB444_1X12:
> +             sdev->ldmt1r = LDMT1R_MIFTYP_RGB12B;
> +             break;
> +
> +     case MEDIA_BUS_FMT_RGB565_1X16:
> +             sdev->ldmt1r = LDMT1R_MIFTYP_RGB16;
> +             break;
> +
> +     case MEDIA_BUS_FMT_RGB666_1X18:
> +             sdev->ldmt1r = LDMT1R_MIFTYP_RGB18;
> +             break;
> +
> +     case MEDIA_BUS_FMT_RGB888_1X24:
> +             sdev->ldmt1r = LDMT1R_MIFTYP_RGB24;
> +             break;
> +
> +     case MEDIA_BUS_FMT_UYVY8_1X16:
> +             sdev->ldmt1r = LDMT1R_MIFTYP_YCBCR;
> +             break;
> +
> +     default:
> +             dev_err(sdev->dev, "invalid bus format 0x%x\n",
> +                     sdev->pdata->iface.bus_fmt);
>               return -EINVAL;
>       }
>  
> -     sdev->ldmt1r = ldmt1r[sdev->pdata->iface.interface];
>       return 0;
>  }
>  
> diff --git a/include/linux/platform_data/shmob_drm.h 
> b/include/linux/platform_data/shmob_drm.h
> index f3cb19ff9f818aca..5047e66f0a6823ba 100644
> --- a/include/linux/platform_data/shmob_drm.h
> +++ b/include/linux/platform_data/shmob_drm.h
> @@ -18,17 +18,6 @@ enum shmob_drm_clk_source {
>       SHMOB_DRM_CLK_EXTERNAL,
>  };
>  
> -enum shmob_drm_interface {
> -     SHMOB_DRM_IFACE_RGB8,           /* 24bpp, 8:8:8 */
> -     SHMOB_DRM_IFACE_RGB9,           /* 18bpp, 9:9 */
> -     SHMOB_DRM_IFACE_RGB12A,         /* 24bpp, 12:12 */
> -     SHMOB_DRM_IFACE_RGB12B,         /* 12bpp */
> -     SHMOB_DRM_IFACE_RGB16,          /* 16bpp */
> -     SHMOB_DRM_IFACE_RGB18,          /* 18bpp */
> -     SHMOB_DRM_IFACE_RGB24,          /* 24bpp */
> -     SHMOB_DRM_IFACE_YUV422,         /* 16bpp */
> -};
> -
>  struct shmob_drm_panel_data {
>       unsigned int width_mm;          /* Panel width in mm */
>       unsigned int height_mm;         /* Panel height in mm */
> @@ -36,7 +25,7 @@ struct shmob_drm_panel_data {
>  };
>  
>  struct shmob_drm_interface_data {
> -     enum shmob_drm_interface interface;
> +     unsigned int bus_fmt;           /* MEDIA_BUS_FMT_RGB888_* */
>       unsigned int clk_div;
>  };
>  

-- 
Regards,

Laurent Pinchart

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