5.4-stable review patch. If anyone has any objections, please let me know.
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From: Melissa Wen mwen@igalia.com
commit 21541bc6b44241e3f791f9e552352d8440b2b29e upstream.
As the hw supports up to 4 surfaces, increase the maximum number of surfaces to prevent the DC error when trying to use more than three planes.
[drm:dc_state_add_plane [amdgpu]] *ERROR* Surface: can not attach plane_state 000000003e2cb82c! Maximum is: 3
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3693 Signed-off-by: Melissa Wen mwen@igalia.com Reviewed-by: Rodrigo Siqueira Rodrigo.Siqueira@amd.com Signed-off-by: Rodrigo Siqueira Rodrigo.Siqueira@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com (cherry picked from commit b8d6daffc871a42026c3c20bff7b8fa0302298c1) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/display/dc/dc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -41,7 +41,7 @@
#define DC_VER "3.2.48"
-#define MAX_SURFACES 3 +#define MAX_SURFACES 4 #define MAX_PLANES 6 #define MAX_STREAMS 6 #define MAX_SINKS_PER_LINK 4