This is needed to avoid warnings with linebuffer depth 36 bpp. Testing on a Polaris11, DCE-11.2 on a 10 bit HDR-10 monitor showed no obvious problems, and this 12 bpc limit is consistent with what other function in the DCE bit depth reduction path use.
Signed-off-by: Mario Kleiner mario.kleiner.de@gmail.com --- drivers/gpu/drm/amd/display/dc/dce/dce_transform.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_transform.c b/drivers/gpu/drm/amd/display/dc/dce/dce_transform.c index 92b53a30d954..d9fd4ec60588 100644 --- a/drivers/gpu/drm/amd/display/dc/dce/dce_transform.c +++ b/drivers/gpu/drm/amd/display/dc/dce/dce_transform.c @@ -794,7 +794,7 @@ static void program_bit_depth_reduction( enum dcp_out_trunc_round_mode trunc_mode; bool spatial_dither_enable;
- ASSERT(depth < COLOR_DEPTH_121212); /* Invalid clamp bit depth */ + ASSERT(depth <= COLOR_DEPTH_121212); /* Invalid clamp bit depth */
spatial_dither_enable = bit_depth_params->flags.SPATIAL_DITHER_ENABLED; /* Default to 12 bit truncation without rounding */ @@ -854,7 +854,7 @@ static void dce60_program_bit_depth_reduction( enum dcp_out_trunc_round_mode trunc_mode; bool spatial_dither_enable;
- ASSERT(depth < COLOR_DEPTH_121212); /* Invalid clamp bit depth */ + ASSERT(depth <= COLOR_DEPTH_121212); /* Invalid clamp bit depth */
spatial_dither_enable = bit_depth_params->flags.SPATIAL_DITHER_ENABLED; /* Default to 12 bit truncation without rounding */