diff options
| author | Stu Hsieh <stu.hsieh@mediatek.com> | 2018-08-09 10:15:42 +0800 |
|---|---|---|
| committer | CK Hu <ck.hu@mediatek.com> | 2018-08-27 11:24:36 +0800 |
| commit | 55b53f6f7ccf0990ad83acf4fdb0436ff79fdfb6 (patch) | |
| tree | d127a722130ac2a576f45f61e4af563ddba731b1 /drivers/gpu/drm/mediatek | |
| parent | b428391ed6bd5e3cb8ea9d1738ef4bd16af6cdb2 (diff) | |
drm/mediatek: add the comment about color format setting for OVL
This patch add the comment about color format setting for OVL
Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
Signed-off-by: CK Hu <ck.hu@mediatek.com>
Diffstat (limited to 'drivers/gpu/drm/mediatek')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c index 978782a77629..0facd823c552 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -157,6 +157,11 @@ static void mtk_ovl_layer_off(struct mtk_ddp_comp *comp, unsigned int idx) static unsigned int ovl_fmt_convert(struct mtk_disp_ovl *ovl, unsigned int fmt) { + /* The return value in switch "MEM_MODE_INPUT_FORMAT_XXX" + * is defined in mediatek HW data sheet. + * The alphabet order in XXX is no relation to data + * arrangement in memory. + */ switch (fmt) { default: case DRM_FORMAT_RGB565: |