diff options
| author | Leo (Sunpeng) Li <sunpeng.li@amd.com> | 2017-10-06 11:57:40 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-10-21 16:50:10 -0400 |
| commit | 9a5d9c48d883db4f7f3e5409062bef7d25165a95 (patch) | |
| tree | 20c5ef2468c009f3e21ddb23c0d88c0e8a2f4e4f /drivers/gpu/drm/amd/display/dc/core/dc_resource.c | |
| parent | 199e458aafc241a2792b3f8a99d5a11aa7726a7d (diff) | |
drm/amd/display: Report stream as different on scaling change
When scaling is enabled, our preference is to scale up to the prefered
(native) mode. This means that hardware timings will be the same across
a modeset.
Therefore, also report mode as changed if source or destination
rectangle is different.
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_resource.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c index 454a521a268d..2a5c91772473 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -1335,6 +1335,28 @@ bool dc_is_stream_unchanged( return true; } +bool dc_is_stream_scaling_unchanged( + struct dc_stream_state *old_stream, struct dc_stream_state *stream) +{ + if (old_stream == stream) + return true; + + if (old_stream == NULL || stream == NULL) + return false; + + if (memcmp(&old_stream->src, + &stream->src, + sizeof(struct rect)) != 0) + return false; + + if (memcmp(&old_stream->dst, + &stream->dst, + sizeof(struct rect)) != 0) + return false; + + return true; +} + /* Maximum TMDS single link pixel clock 165MHz */ #define TMDS_MAX_PIXEL_CLOCK_IN_KHZ 165000 |