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path: root/drivers/gpu/drm/amd/display/dc/dc_link.h
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2018-09-14drm/amd/display: add query HPD interface.Chiawen Huang1-0/+1
[Why] current dc_link_detect function is not only detection but also update some link data. [How] added a pure get HPD state function. Signed-off-by: Chiawen Huang <chiawen.huang@amd.com> Reviewed-by: Tony Cheng <Tony.Cheng@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-06drm/amd/display: add vbios table check for enabling dp ssDmytro Laktyushkin1-0/+1
Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com> Reviewed-by: Eric Bernstein <Eric.Bernstein@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-06drm/amd/display: Implement backlight_ops.get_brightnessDavid Francis1-0/+2
[Why] This hook that is supposed to read the actual backlight value is used in a few places throughout the kernel to setup or force update on backlight [How] Create a dc function that calls the existing abm function, and call that function from amdgpu Signed-off-by: David Francis <David.Francis@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-13drm/amd/display: Return out_link_loss from interrupt handlerFatemeh Darbehani1-1/+1
Signed-off-by: Fatemeh Darbehani <fatemeh.darbehani@amd.com> Reviewed-by: Aric Cyr <Aric.Cyr@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-13drm/amd/display: Serialize is_dp_sink_presentHarry Wentland1-0/+2
Access to GPIO needs to be serialized. Aux transactions are already serialized in DRM but we also need to serialize access to the GPIO pin for purposes of DP dongle detection. Call is_dp_sink_present through DM so we can lock correctly. This follows the same pattern used for DPCD transactions. Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-07-13drm/amd/display: Linux Set/Read link rate and lane count through debugfsHersen Wu1-0/+17
expose dc function to be called by linux dm Signed-off-by: Hersen Wu <hersenxs.wu@amd.com> Reviewed-by: Sun peng Li <Sunpeng.Li@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-05-15drm/amd/display: fix brightness level after resume from suspendRoman Li1-0/+2
Adding missing call to cache current backlight values. Otherwise the brightness resets to default value on resume. Signed-off-by: Roman Li <Roman.Li@amd.com> Reviewed-by: Charlene Liu <Charlene.Liu@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-04-11drm/amd/display: add delay between panel pwr off to on.Charlene Liu1-0/+9
As per eDP 1.4 spec, there must be at least 500ms delay between eDP power off and on. This change added time stamp when edp power off, which can be used to calculate duration time when edp power on. If duration less than 500ms, add a wait. Signed-off-by: Charlene Liu <charlene.liu@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>
2018-03-05drm/amd/display: Add passive dongle support for HPD RearchJohn Barberiz1-1/+1
Add HPD delay timer support to 1. Single/dual link DVI. 2. DP to HDMI passive dongle 3. DP to DVI passive dongle. Signed-off-by: John Barberiz <jbarberi@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>
2018-02-19drm/amd/display: Rearchitecture HDMI HPDJohn Barberiz1-0/+4
- Disabled HPD filter and used HPD software timer instead - Allows DM to disable HPD filtering Signed-off-by: John Barberiz <jbarberi@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-12-06drm/amd/display: Move dc_link interface to separate headerHarry Wentland1-0/+207
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>
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