Il 17/09/24 18:44, Jason-JH.Lin ha scritto:
OVL_CON_CLRFMT_MAN is a configuration for extending color format
settings of DISP_REG_OVL_CON(n).
It will change some of the original color format settings.
Take the settings of (3 << 12) for example.
- If OVL_CON_CLRFMT_MAN = 0 means OVL_CON_CLRFMT_RGBA8888.
- If OVL_CON_CLRFMT_MAN = 1 means OVL_CON_CLRFMT_PARGB8888.
Since OVL_CON_CLRFMT_MAN is not supported on previous SoCs,
It breaks the OVL color format setting of MT8173.
Therefore, the fmt_convert function pointer is added to the driver data
and mtk_ovl_fmt_convert_with_blend is implemented for MT8192 and MT8195
that support OVL_CON_CLRFMT_MAN, and mtk_ovl_fmt_convert is implemented
for other SoCs that do not support it to solve the degradation problem.
Fixes: a3f7f7ef4bfe ("drm/mediatek: Support "Pre-multiplied" blending in OVL")
Signed-off-by: Jason-JH.Lin <jason-jh.lin@xxxxxxxxxxxx>
Tested-by: Alper Nebi Yasak <alpernebiyasak@xxxxxxxxx>
Awesome.
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
