mirror-linux/drivers/gpu
Hsin-Yi Wang adca62ec37
drm/bridge: anx7625: Support reading edid through aux channel
Support reading edid through aux channel if panel is connected to aux
bus. Extend anx7625_aux_dpcd_trans() to implement aux transfer function:

1. panel is populated in devm_of_dp_aux_populate_ep_devices(), so move
   anx7625_parse_dt() after.
2. Use pm runtime autosuspend since aux transfer function is called
   multiple times when reading edid.
3. No-op if aux transfer length is 0.

Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Xin Ji <xji@analogixsemi.com>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220213103437.3363848-3-hsinyi@chromium.org
2022-02-14 13:42:05 +01:00
..
drm drm/bridge: anx7625: Support reading edid through aux channel 2022-02-14 13:42:05 +01:00
host1x gpu: host1x: Add back arm_iommu_detach_device() 2021-12-16 14:28:51 +01:00
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