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UPSTREAM: drm/tegra: hub: Fix YUV support

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The driver currently exposes several YUV formats but fails to properly
program all the registers needed to display such formats. Add the right
programming sequences so that overlay windows can be used to accelerate
color format conversions in multimedia playback use-cases.

Change-Id: I0c508936e022557e02670d114933ba3865048b85
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2545953
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Thierry Reding
2021-05-27 20:15:46 +02:00
committed by Laxman Dewangan
parent 99b2dfcad0
commit fbce3f1d95
5 changed files with 78 additions and 9 deletions
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23
drivers/gpu/drm/tegra/plane.c
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@@ -376,7 +376,20 @@ int tegra_plane_format(u32 fourcc, u32 *format, u32 *swap)
return 0;
}
bool tegra_plane_format_is_yuv(unsigned int format, bool *planar)
bool tegra_plane_format_is_indexed(unsigned int format)
{
switch (format) {
case WIN_COLOR_DEPTH_P1:
case WIN_COLOR_DEPTH_P2:
case WIN_COLOR_DEPTH_P4:
case WIN_COLOR_DEPTH_P8:
return true;
}
return false;
}
bool tegra_plane_format_is_yuv(unsigned int format, bool *planar, unsigned int *bpc)
{
switch (format) {
case WIN_COLOR_DEPTH_YCbCr422:
@@ -384,6 +397,9 @@ bool tegra_plane_format_is_yuv(unsigned int format, bool *planar)
if (planar)
*planar = false;
if (bpc)
*bpc = 8;
return true;
case WIN_COLOR_DEPTH_YCbCr420P:
@@ -397,6 +413,9 @@ bool tegra_plane_format_is_yuv(unsigned int format, bool *planar)
if (planar)
*planar = true;
if (bpc)
*bpc = 8;
return true;
}
@@ -422,7 +441,7 @@ static bool __drm_format_has_alpha(u32 format)
static int tegra_plane_format_get_alpha(unsigned int opaque,
unsigned int *alpha)
{
if (tegra_plane_format_is_yuv(opaque, NULL)) {
if (tegra_plane_format_is_yuv(opaque, NULL, NULL)) {
*alpha = opaque;
return 0;
}