diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3487-drm-amd-display-Calculate-bpc-based-on-max_requested.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3487-drm-amd-display-Calculate-bpc-based-on-max_requested.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3487-drm-amd-display-Calculate-bpc-based-on-max_requested.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3487-drm-amd-display-Calculate-bpc-based-on-max_requested.patch new file mode 100644 index 00000000..1e3da675 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/3487-drm-amd-display-Calculate-bpc-based-on-max_requested.patch @@ -0,0 +1,43 @@ +From a1261bed085d28247ce6977e0f94b3f7a00c3440 Mon Sep 17 00:00:00 2001 +From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> +Date: Wed, 21 Aug 2019 11:27:13 -0400 +Subject: [PATCH 3487/4256] drm/amd/display: Calculate bpc based on + max_requested_bpc + +[Why] +The only place where state->max_bpc is updated on the connector is +at the start of atomic check during drm_atomic_connector_check. It +isn't updated when adding the connectors to the atomic state after +the fact. It also doesn't necessarily reflect the right value when +called in amdgpu during mode validation outside of atomic check. + +This can cause the wrong bpc to be used even if the max_requested_bpc +is the correct value. + +[How] +Don't rely on state->max_bpc reflecting the real bpc value and just +do the min(...) based on display info bpc and max_requested_bpc. + +Fixes: 01933ba42d3d ("drm/amd/display: Use current connector state if NULL when checking bpc") +Change-Id: Ic8ff6beaf00dd6c2b9dd82bc503e5c7ce281ed1b +Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> +Reviewed-by: Leo Li <sunpeng.li@amd.com> +--- + drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h | 1 + + 1 file changed, 1 insertion(+) + +diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h +index cc415ecc2c1a..48fd259cd33f 100644 +--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h ++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.h +@@ -58,6 +58,7 @@ const char *const *amdgpu_dm_crtc_get_crc_sources(struct drm_crtc *crtc, + size_t *count); + void amdgpu_dm_crtc_handle_crc_irq(struct drm_crtc *crtc); + #else ++#define amdgpu_dm_crtc_configure_crc_source NULL + #define amdgpu_dm_crtc_set_crc_source NULL + #define amdgpu_dm_crtc_verify_crc_source NULL + #define amdgpu_dm_crtc_get_crc_sources NULL +-- +2.17.1 + |