Commit b1d2751c authored by Drew Davenport's avatar Drew Davenport Committed by Douglas Anderson
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drm/bridge/parade-ps8640: Extend autosuspend 



Same change as done for panel-samsung-atna33xc20. Extend the autosuspend
delay to avoid oscillating between power status during boot.

Signed-off-by: default avatarDrew Davenport <ddavenport@chromium.org>
Reviewed-by: default avatarDouglas Anderson <dianders@chromium.org>
Signed-off-by: default avatarDouglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221117133655.4.If6153da69ec4bc9e83d5f095ef6e6b07283940a5@changeid
parent 7e682946

drivers/gpu/drm/bridge/parade-ps8640.c

+2 −2
Original line number Diff line number Diff line
@@ -734,13 +734,13 @@ static int ps8640_probe(struct i2c_client *client) 
	pm_runtime_enable(dev);

	/*

	 * Powering on ps8640 takes ~300ms. To avoid wasting time on power

	 * cycling ps8640 too often, set autosuspend_delay to 1000ms to ensure

	 * cycling ps8640 too often, set autosuspend_delay to 2000ms to ensure

	 * the bridge wouldn't suspend in between each _aux_transfer_msg() call

	 * during EDID read (~20ms in my experiment) and in between the last

	 * _aux_transfer_msg() call during EDID read and the _pre_enable() call

	 * (~100ms in my experiment).

	 */

	pm_runtime_set_autosuspend_delay(dev, 1000);

	pm_runtime_set_autosuspend_delay(dev, 2000);

	pm_runtime_use_autosuspend(dev);

	pm_suspend_ignore_children(dev, true);

	ret = devm_add_action_or_reset(dev, ps8640_runtime_disable, dev);