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4d5b7daa3c
Similar to commit26db46bc9c("drm/bridge: parade-ps8640: Ensure bridge is suspended in .post_disable()"). Add a mutex to ensure that aux transfer won't race with atomic_disable by holding the PM reference and prevent the bridge from suspend. Also we need to use pm_runtime_put_sync_suspend() to suspend the bridge instead of idle with pm_runtime_put_sync(). Fixes:3203e497eb("drm/bridge: anx7625: Synchronously run runtime suspend.") Fixes:adca62ec37("drm/bridge: anx7625: Support reading edid through aux channel") Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org> Tested-by: Xuxin Xiong <xuxinxiong@huaqin.corp-partner.google.com> Reviewed-by: Pin-yen Lin <treapking@chromium.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240118015916.2296741-1-hsinyi@chromium.org