[why]
Currently the amdgpu DM psr configuration parameters are hardcoded
before feeding into the DC helper to setup PSR. We would define a
helper which is to calculate parts of the psr config fields to
avoid hard-coding.
[how]
To make helper shareable, declare and define the helper in the
module_helper, to set/update below fields:
- psr remote buffer setup time
- sdp tx line number deadline
- line time in us
- su_y_granularity
- su_granularity_required
- psr_frame_capture_indication_req
- psr_exit_link_training_required
add another helper to check given the stream context, if there is
only one stream and the output is eDP panel connected.
changes in v2:
------------------
- add detailed comment for how psr setup time is calculated as per
eDP 1.5 spec
Cc: Chandan Vurdigerenataraj <chandan.vurdigerenataraj@amd.com>
Signed-off-by: David Zhang <dingchen.zhang@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[why]
creating a generic helper for AMD specific PSR-SU sink validation.
Moving the function to the power module to reference it across all
OS.
[how]
- drop PSRSU specific sink validation helper and move to power
module by reading PSR version and other PSR caps
- call the new helper from linux DM (amdgpu_dm_psr)
Acked-by: Pavle Kotarac <Pavle.Kotarac@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: David Zhang <dingchen.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
Added support for individual control for multiple back-light instances.
Signed-off-by: Jake Wang <haonan.wang2@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
Need driver to pass values of backlight ramp start and ramp reduction so
that intensity can be ramped down appropriately.
[How]
Using abm_parameters structure to get these values from driver.
Signed-off-by: Rizvi <syerizvi@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why & How]
change abm config init interface to support multiple ABMs.
Signed-off-by: Yongqiang Sun <yongqiang.sun@amd.com>
Reviewed-by: Chris Park <Chris.Park@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[Why]
A lot of the time, the backlight characteristic curve maps min backlight
to a non-zero value.
But there are cases where we want the curve to intersect at 0.
In this scenario even if OS never asks to set 0% backlight, the ABM
reduction can result in backlight being lowered close to 0.
This particularly can cause problems in some LED drivers, and in
general just looks like backlight is completely off.
[How]
Add default cap to disallow backlight from dropping below 1%
even after ABM reduction is applied.
Signed-off-by: Anthony Koo <Anthony.Koo@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
DMCU IRAM must be loaded by the driver before DMCU
can function.
Move the IRAM code out of the shadows and into a new file
modules/power/power_helpers.c
The IRAM table contains the backlight curve and ABM parameters
Add this new file to the Makefiles
Call dmcu_load_iram in late init of DM
Move struct dmcu_version from dc.h to dmcu.h to allow
dmcu to be included on its own
Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
