diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/0505-drm-amd-display-No-need-to-get-property-before-set.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/0505-drm-amd-display-No-need-to-get-property-before-set.patch | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/0505-drm-amd-display-No-need-to-get-property-before-set.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/0505-drm-amd-display-No-need-to-get-property-before-set.patch new file mode 100644 index 00000000..87f3163c --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/0505-drm-amd-display-No-need-to-get-property-before-set.patch @@ -0,0 +1,54 @@ +From 0e83f224a429ec82cae3411ec22ba3f7d9b6164d Mon Sep 17 00:00:00 2001 +From: Harry Wentland <harry.wentland@amd.com> +Date: Thu, 1 Jun 2017 12:21:34 -0400 +Subject: [PATCH 0505/4131] drm/amd/display: No need to get property before set + +Get property requires a lock but if we add it we get a deadlock +on MST display detection. There's really no need to get the +property before setting it. + +Signed-off-by: Harry Wentland <harry.wentland@amd.com> +Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> +Acked-by: Harry Wentland <Harry.Wentland@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c | 21 +++++---------------- + 1 file changed, 5 insertions(+), 16 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c +index 2d8a9bb..a7e0ae8 100644 +--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c ++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_types.c +@@ -1061,24 +1061,13 @@ static int amdgpu_freesync_update_property_atomic( + struct drm_connector *connector, + uint64_t val_capable) + { +- struct drm_device *dev; +- struct amdgpu_device *adev; +- int ret; +- uint64_t val; ++ struct drm_device *dev = connector->dev; ++ struct amdgpu_device *adev = dev->dev_private; + +- dev = connector->dev; +- adev = dev->dev_private; ++ return drm_object_property_set_value(&connector->base, ++ adev->mode_info.freesync_property, ++ val_capable); + +- ret = drm_object_property_get_value( +- &connector->base, +- adev->mode_info.freesync_property, +- &val); +- if (ret == 0 && val != 0 && val_capable == 0) +- ret = drm_object_property_set_value( +- &connector->base, +- adev->mode_info.freesync_property, +- val_capable); +- return ret; + + } + +-- +2.7.4 + |