gjdwebserver-overlay/sys-kernel/pinephone-sources/files/0033-media-ov5640-Sleep-after-poweroff-to-ensure-next-pow.patch
Gerben Jan Dijkman 03dcb3fa3b Added patch files
2022-01-11 10:08:21 +01:00

26 lines
914 B
Diff

From: Ondrej Jirman <megous@megous.com>
Date: Sun, 26 Jan 2020 00:19:40 +0100
Subject: [PATCH 093/194] 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 <megous@megous.com>
---
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 2f6f97e..8a53c0c 100644
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -1971,6 +1971,7 @@ 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)