[v2] drm/bridge: anx7625: Fix power on delay
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Message ID 20210428115116.931328-1-hsinyi@chromium.org
State In Next
Commit 1fcf24fb07e254ca69001ab14adc8cf567127c44
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  • [v2] drm/bridge: anx7625: Fix power on delay
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Commit Message

Hsin-Yi Wang April 28, 2021, 11:51 a.m. UTC
From anx7625 spec, the delay between powering on power supplies and gpio
should be larger than 10ms.

Fixes: 6c744983004e ("drm/bridge: anx7625: disable regulators when power off")
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
---
v1->v2: Extend sleep range a bit as the regulator on some device takes
more time to be powered on after regulator_enable() is called.
---
 drivers/gpu/drm/bridge/analogix/anx7625.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c
index 23283ba0c4f9..b4e349ca38fe 100644
--- a/drivers/gpu/drm/bridge/analogix/anx7625.c
+++ b/drivers/gpu/drm/bridge/analogix/anx7625.c
@@ -893,7 +893,7 @@  static void anx7625_power_on(struct anx7625_data *ctx)
 		usleep_range(2000, 2100);
 	}
 
-	usleep_range(4000, 4100);
+	usleep_range(11000, 12000);
 
 	/* Power on pin enable */
 	gpiod_set_value(ctx->pdata.gpio_p_on, 1);