linux-kernel - [PATCH 5.13 393/800] drm/bridge: anx7625: Fix power on delay

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Message-Id: <20210712061008.998929106@linuxfoundation.org>
Date:   Mon, 12 Jul 2021 08:06:56 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Hsin-Yi Wang <hsinyi@...omium.org>,
        Neil Armstrong <narmstrong@...libre.com>,
        Robert Foss <robert.foss@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.13 393/800] drm/bridge: anx7625: Fix power on delay

From: Hsin-Yi Wang <hsinyi@...omium.org>

[ Upstream commit 1fcf24fb07e254ca69001ab14adc8cf567127c44 ]

>>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@...omium.org>
Reviewed-by: Neil Armstrong <narmstrong@...libre.com>
Signed-off-by: Robert Foss <robert.foss@...aro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210428115116.931328-1-hsinyi@chromium.org
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/bridge/analogix/anx7625.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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);
-- 
2.30.2