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| author | David Zhang <dingchen.zhang@amd.com> | 2022-04-25 18:08:13 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-06-06 14:42:33 -0400 |
| commit | 65e7a17499e15771339d85eaa1ba686ad2fe342c (patch) | |
| tree | 355d7c34ffe96a2145cbc063f4b0c0dff5ff75ed /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c | |
| parent | e61a048eabf9d1245f86e67ec4787d2f10e5a1e0 (diff) | |
| download | linux-65e7a17499e15771339d85eaa1ba686ad2fe342c.tar.bz2 | |
drm/amd/display: add shared helpers to update psr config fields to power module
[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>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c')
0 files changed, 0 insertions, 0 deletions