build/patch/kernel/archive/sunxi-6.2/patches.megous/media-ov5640-Sleep-after-poweroff-to-ensure-next-poweron-is-not.patch

30 lines
1008 B
Diff

From 7b7b846617884ddfea5e73c075c845893bde9ac8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Jirman?= <megi@xff.cz>
Date: Sun, 26 Jan 2020 00:19:40 +0100
Subject: [PATCH 043/391] media: ov5640: Sleep after poweroff to ensure next
poweron is not too early
It's easy to use v4l2 userspace api in such a way that user can trigger
a brownout on the sensor instead of a proper powerdown and powerup.
Signed-off-by: Ondrej Jirman <megi@xff.cz>
---
drivers/media/i2c/ov5640.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
index 8af241640..7f478f19b 100644
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -2503,6 +2503,7 @@ static void ov5640_set_power_off(struct ov5640_dev *sensor)
ov5640_power(sensor, false);
regulator_bulk_disable(OV5640_NUM_SUPPLIES, sensor->supplies);
clk_disable_unprepare(sensor->xclk);
+ msleep(100);
}
static int ov5640_set_power_mipi(struct ov5640_dev *sensor, bool on)
--
2.35.3