diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4558-drm-amdgpu-display-check-if-ppfuncs-exists-before-us.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4558-drm-amdgpu-display-check-if-ppfuncs-exists-before-us.patch | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4558-drm-amdgpu-display-check-if-ppfuncs-exists-before-us.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4558-drm-amdgpu-display-check-if-ppfuncs-exists-before-us.patch new file mode 100644 index 00000000..78a73dcc --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4558-drm-amdgpu-display-check-if-ppfuncs-exists-before-us.patch @@ -0,0 +1,30 @@ +From 12ca0be853d9133fbcdd14bf973179e6b5c73b2e Mon Sep 17 00:00:00 2001 +From: Alex Deucher <alexander.deucher@amd.com> +Date: Wed, 30 May 2018 09:34:23 -0500 +Subject: [PATCH 4558/5725] drm/amdgpu/display: check if ppfuncs exists before + using it + +Fixes a crash on asics without powerplay yet (e.g., vega20). + +Reviewed-by: Rex Zhu<rezhu@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c +index d5e6b45..5a33461 100644 +--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c ++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_services.c +@@ -343,7 +343,7 @@ bool dm_pp_get_clock_levels_by_type_with_latency( + struct pp_clock_levels_with_latency pp_clks = { 0 }; + const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs; + +- if (!pp_funcs->get_clock_by_type_with_latency) ++ if (!pp_funcs || !pp_funcs->get_clock_by_type_with_latency) + return false; + + if (pp_funcs->get_clock_by_type_with_latency(pp_handle, +-- +2.7.4 + |