Re: [PATCH 2/5] drm: shmobile: Add support for DRM_FORMAT_XRGB8888

Laurent Pinchart
2023-04-05T03:06:31Z

Hi Geert,

Thank you for the patch.

On Fri, Mar 31, 2023 at 04:48:08PM +0200, Geert Uytterhoeven wrote:
> DRM_FORMAT_XRGB8888 aka XR24 is the modus francus of DRM, and should be
> supported by all drivers.
>
> The handling for DRM_FORMAT_XRGB8888 is similar to DRM_FORMAT_ARGB8888,
> just ignore the alpha channel.
>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

> ---
> drivers/gpu/drm/shmobile/shmob_drm_crtc.c | 1 +
> drivers/gpu/drm/shmobile/shmob_drm_kms.c | 5 +++++
> drivers/gpu/drm/shmobile/shmob_drm_plane.c | 5 +++++
> 3 files changed, 11 insertions(+)
>
> diff --git a/drivers/gpu/drm/shmobile/shmob_drm_crtc.c b/drivers/gpu/drm/shmobile/shmob_drm_crtc.c
> index 713a7612244c647a..08dc1428aa16caf0 100644
> --- a/drivers/gpu/drm/shmobile/shmob_drm_crtc.c
> +++ b/drivers/gpu/drm/shmobile/shmob_drm_crtc.c
> @@ -232,6 +232,7 @@ static void shmob_drm_crtc_start(struct shmob_drm_crtc *scrtc)
> value = LDDDSR_LS | LDDDSR_WS | LDDDSR_BS;
> break;
> case DRM_FORMAT_ARGB8888:
> + case DRM_FORMAT_XRGB8888:
> default:
> value = LDDDSR_LS;
> break;
> diff --git a/drivers/gpu/drm/shmobile/shmob_drm_kms.c b/drivers/gpu/drm/shmobile/shmob_drm_kms.c
> index 3c5fe3bc183c7c13..99381cc0abf3ae1f 100644
> --- a/drivers/gpu/drm/shmobile/shmob_drm_kms.c
> +++ b/drivers/gpu/drm/shmobile/shmob_drm_kms.c
> @@ -39,6 +39,11 @@ static const struct shmob_drm_format_info shmob_drm_format_infos[] = {
> .bpp = 32,
> .yuv = false,
> .lddfr = LDDFR_PKF_ARGB32,
> + }, {
> + .fourcc = DRM_FORMAT_XRGB8888,
> + .bpp = 32,
> + .yuv = false,
> + .lddfr = LDDFR_PKF_ARGB32,
> }, {
> .fourcc = DRM_FORMAT_NV12,
> .bpp = 12,
> diff --git a/drivers/gpu/drm/shmobile/shmob_drm_plane.c b/drivers/gpu/drm/shmobile/shmob_drm_plane.c
> index 604ae23825daaafd..850986cee848226a 100644
> --- a/drivers/gpu/drm/shmobile/shmob_drm_plane.c
> +++ b/drivers/gpu/drm/shmobile/shmob_drm_plane.c
> @@ -80,6 +80,7 @@ static void __shmob_drm_plane_setup(struct shmob_drm_plane *splane,
> format |= LDBBSIFR_SWPL | LDBBSIFR_SWPW | LDBBSIFR_SWPB;
> break;
> case DRM_FORMAT_ARGB8888:
> + case DRM_FORMAT_XRGB8888:
> default:
> format |= LDBBSIFR_SWPL;
> break;
> @@ -95,6 +96,9 @@ static void __shmob_drm_plane_setup(struct shmob_drm_plane *splane,
> case DRM_FORMAT_ARGB8888:
> format |= LDBBSIFR_AL_PK | LDBBSIFR_RY | LDDFR_PKF_ARGB32;
> break;
> + case DRM_FORMAT_XRGB8888:
> + format |= LDBBSIFR_AL_1 | LDBBSIFR_RY | LDDFR_PKF_ARGB32;
> + break;
> case DRM_FORMAT_NV12:
> case DRM_FORMAT_NV21:
> format |= LDBBSIFR_AL_1 | LDBBSIFR_CHRR_420;
> @@ -231,6 +235,7 @@ static const uint32_t formats[] = {
> DRM_FORMAT_RGB565,
> DRM_FORMAT_RGB888,
> DRM_FORMAT_ARGB8888,
> + DRM_FORMAT_XRGB8888,
> DRM_FORMAT_NV12,
> DRM_FORMAT_NV21,
> DRM_FORMAT_NV16,

--
Regards,

Laurent Pinchart