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| author | Julian Parkin <julian.parkin@amd.com> | 2019-06-25 14:55:53 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-07-18 14:17:20 -0500 |
| commit | 0905f32977268149f06e3ce6ea4bd6d374dd891f (patch) | |
| tree | f19359bd97a333181dfe16e4c69497647730348e /drivers/gpu/drm | |
| parent | 67fd6c0d2de8e51e84ff3fa6e68bbd524f823e49 (diff) | |
| download | linux-stable-0905f32977268149f06e3ce6ea4bd6d374dd891f.tar.gz linux-stable-0905f32977268149f06e3ce6ea4bd6d374dd891f.tar.bz2 linux-stable-0905f32977268149f06e3ce6ea4bd6d374dd891f.zip | |
drm/amd/display: Fix dc_create failure handling and 666 color depths
[Why]
It is possible (but very unlikely) that constructing dc fails
before current_state is created.
We support 666 color depth in some scenarios, but this
isn't handled in get_norm_pix_clk. It uses exactly the
same pixel clock as the 888 case.
[How]
Check for non null current_state before destructing.
Add case for 666 color depth to get_norm_pix_clk to
avoid assertion.
Signed-off-by: Julian Parkin <julian.parkin@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc.c | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 1 |
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 4ef4dc63e221..fa20201eef3a 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -502,8 +502,10 @@ void dc_stream_set_static_screen_events(struct dc *dc, static void destruct(struct dc *dc) { - dc_release_state(dc->current_state); - dc->current_state = NULL; + if (dc->current_state) { + dc_release_state(dc->current_state); + dc->current_state = NULL; + } destroy_links(dc); 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 a0e29c37ab69..87f97b3a4106 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c @@ -1839,6 +1839,7 @@ static int get_norm_pix_clk(const struct dc_crtc_timing *timing) pix_clk /= 2; if (timing->pixel_encoding != PIXEL_ENCODING_YCBCR422) { switch (timing->display_color_depth) { + case COLOR_DEPTH_666: case COLOR_DEPTH_888: normalized_pix_clk = pix_clk; break; |