diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/4731-drm-amd-display-Drop-to-fail-safe-mode-if-edid-is-ba.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/4731-drm-amd-display-Drop-to-fail-safe-mode-if-edid-is-ba.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/4731-drm-amd-display-Drop-to-fail-safe-mode-if-edid-is-ba.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/4731-drm-amd-display-Drop-to-fail-safe-mode-if-edid-is-ba.patch new file mode 100644 index 00000000..909d3356 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/4731-drm-amd-display-Drop-to-fail-safe-mode-if-edid-is-ba.patch @@ -0,0 +1,35 @@ +From 022bc228b3719d912336445cce84c28385806f45 Mon Sep 17 00:00:00 2001 +From: Mikita Lipski <mikita.lipski@amd.com> +Date: Tue, 22 May 2018 15:55:43 -0400 +Subject: [PATCH 4731/5725] drm/amd/display: Drop to fail-safe mode if edid is + bad + +Provide the connector with a single fail-safe mode of 640x480 for CTS +tests instead of providing a list of possible base modes. + +Signed-off-by: Mikita Lipski <mikita.lipski@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> +--- + drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +index 2aa0041..8bc6736 100644 +--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c ++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +@@ -3798,6 +3798,10 @@ static int amdgpu_dm_connector_get_modes(struct drm_connector *connector) + struct edid *edid = amdgpu_dm_connector->edid; + + encoder = helper->best_encoder(connector); ++ ++ if (!edid || !drm_edid_is_valid(edid)) ++ return drm_add_modes_noedid(connector, 640, 480); ++ + amdgpu_dm_connector_ddc_get_modes(connector, edid); + amdgpu_dm_connector_add_common_modes(encoder, connector); + +-- +2.7.4 + |