[2/2] drm/amd/display: Set default ABM level to module parameter

Submitted by Kazlauskas, Nicholas on June 6, 2019, 1:02 p.m.

Details

Message ID 20190606130213.29249-2-nicholas.kazlauskas@amd.com
State New
Headers show
Series "Series without cover letter" ( rev: 1 ) in AMD X.Org drivers

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Commit Message

Kazlauskas, Nicholas June 6, 2019, 1:02 p.m.
[Why]
The module parameter to specify the default ABM level is now defined,
so hook it up in DM.

[How]
On connector reset specify the default level. DC will program this as
part of the modeset since it gets passed onto the stream in
dm_update_crtc_state.

It's only set for eDP connectors, but it doesn't matter if this is
specified for connectors or hardware that doesn't support ABM.

It's DC's responsibility to check that ABM can be set or adjusted, and
DC does check that the DMCU firmware is running and if there's backlight
control available.

Cc: Harry Wentland <harry.wentland@amd.com>
Cc: David Francis <david.francis@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 +++
 1 file changed, 3 insertions(+)

Patch hide | download patch | download mbox

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 a698c8f272ed..f0c216d78a07 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3821,6 +3821,9 @@  void amdgpu_dm_connector_funcs_reset(struct drm_connector *connector)
 		state->underscan_hborder = 0;
 		state->underscan_vborder = 0;
 
+		if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)
+			state->abm_level = amdgpu_dm_abm_level;
+
 		__drm_atomic_helper_connector_reset(connector, &state->base);
 	}
 }