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drm/amd/display: Miss register MST encoder cbs 

It is to fix: MST display failed to resume from S3

Need to properly setup MST encoder cbs. Otherwise drm_device
encoder doesn't register its own cbs, leading to NULL
encoder->funcs in drm_atomic_helper_resume().

Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Jerry (Fangzhi) Zuo 2017-11-03 14:19:06 -04:00 committed by Alex Deucher
parent fcb4019e09
commit 4fc6f65965
1 changed files with 11 additions and 1 deletions
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12
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
View File

@ -245,6 +245,16 @@ static const struct drm_connector_helper_funcs dm_dp_mst_connector_helper_funcs
.best_encoder = dm_mst_best_encoder,
};
static void amdgpu_dm_encoder_destroy(struct drm_encoder *encoder)
{
drm_encoder_cleanup(encoder);
kfree(encoder);
}
static const struct drm_encoder_funcs amdgpu_dm_encoder_funcs = {
.destroy = amdgpu_dm_encoder_destroy,
};
static struct amdgpu_encoder *
dm_dp_create_fake_mst_encoder(struct amdgpu_dm_connector *connector)
{
@ -268,7 +278,7 @@ dm_dp_create_fake_mst_encoder(struct amdgpu_dm_connector *connector)
drm_encoder_init(
dev,
&amdgpu_encoder->base,
NULL,
&amdgpu_dm_encoder_funcs,
DRM_MODE_ENCODER_DPMST,
NULL);