[PATCH 0/2 v6] drm/mediatek: Add support for 10-bit overlays

[Justin Green]

My apologies, I accidentally mangled the version history. It should
actually read:

v2:
 * Rebase and resolve merge conflicts with the AFBC patch.
v3:
 * Moved 10-bit support detection to mtk_disk_ovl.c
v4:
 * Moved formats to mtk_disp_ovl.c and mtk_disp_rdma.c
v5:
 * Minor style adjustments per checkpatch.pl
v6:
 * Refactor patch into patch series.
 * Add formats directly to private data.

On Tue, Jan 31, 2023 at 3:08 PM Justin Green <greenjustin at chromium.org> wrote:
>
> This patch series adds support for 10-bit overlays to the Mediatek DRM driver.
> Specifically, we add support for AR30 and BA30 overlays on MT8195 devices and
> lay the groundwork for supporting more 10-bit formats on more devices.
>
> 1. Refactor plane initialization logic to allow individual DDP components to
> provide their supported pixel formats.
>
> 2. Add AR30 and BA30 support to the MT8195 overlay driver.
>
>
> Version history:
> v6:
>  * Refactor patch into patch series.
>  * Add formats directly to private data.
>
> v5:
> * Removed some dead defines.
> * Refactored mtk_ovl_set_afbc().
>
> v4:
> * Move modifier validation to format_mod_supported function.
> * Add modifiers to drm_universal_plane_init() call.
> * Make comparisons to DRM_FORMAT_MOD_LINEAR explicit rather than relying on
>   DRM_FORMAT_LINEAR being equal to 0.
> * Gate AFBC control bit writes on device compatibility.
>
> v3:
> * Replaced pitch bitshift math with union based approach.
> * Refactored overlay register writes to shared code between non-AFBC and
>   AFBC.
> * Minor code cleanups.
>
> v2:
> * Marked mtk_ovl_set_afbc as static.
> * Reflowed some lines to fit column limit.
>
>
> Justin Green (2):
>   drm/mediatek: Refactor pixel format logic
>   drm/mediatek: Add support for AR30 and BA30 overlays
>
>  drivers/gpu/drm/mediatek/mtk_disp_drv.h     |  4 +
>  drivers/gpu/drm/mediatek/mtk_disp_ovl.c     | 89 +++++++++++++++++++++
>  drivers/gpu/drm/mediatek/mtk_disp_rdma.c    | 38 +++++++++
>  drivers/gpu/drm/mediatek/mtk_drm_crtc.c     |  4 +-
>  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c |  4 +
>  drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 20 +++++
>  drivers/gpu/drm/mediatek/mtk_drm_plane.c    | 24 ++----
>  drivers/gpu/drm/mediatek/mtk_drm_plane.h    |  3 +-
>  8 files changed, 168 insertions(+), 18 deletions(-)
>
> --
> 2.39.1.456.gfc5497dd1b-goog
>