diff options
| author | Naushir Patuck <[email protected]> | 2024-11-15 18:07:17 +0000 |
|---|---|---|
| committer | Mauro Carvalho Chehab <[email protected]> | 2024-12-19 11:50:13 +0000 |
| commit | 57d10bcac67707caaa542e09dee86e13ea85defc (patch) | |
| tree | dadb2318808a4fd3cad3c8cff3fc12cda82e2d35 | |
| parent | media: i2c: imx412: Add missing newline to prints (diff) | |
| download | kernel-57d10bcac67707caaa542e09dee86e13ea85defc.tar.gz kernel-57d10bcac67707caaa542e09dee86e13ea85defc.zip | |
media: imx296: Add standby delay during probe
Add a 2-5ms delay when coming out of standby and before reading the
sensor info register durning probe, as instructed by the datasheet. This
standby delay is already present when the sensor starts streaming.
During a cold-boot, reading the IMX296_SENSOR_INFO register would often
return a value of 0x0000, if this delay is not present before.
Fixes: cb33db2b6ccf ("media: i2c: IMX296 camera sensor driver")
Cc: [email protected]
Tested-by: Alexandru Ardelean <[email protected]>
Signed-off-by: Naushir Patuck <[email protected]>
Reviewed-by: Kieran Bingham <[email protected]>
Reviewed-by: Laurent Pinchart <[email protected]>
Signed-off-by: Sakari Ailus <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
| -rw-r--r-- | drivers/media/i2c/imx296.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/i2c/imx296.c b/drivers/media/i2c/imx296.c index 83149fa729c4..f3bec16b527c 100644 --- a/drivers/media/i2c/imx296.c +++ b/drivers/media/i2c/imx296.c @@ -954,6 +954,8 @@ static int imx296_identify_model(struct imx296 *sensor) return ret; } + usleep_range(2000, 5000); + ret = imx296_read(sensor, IMX296_SENSOR_INFO); if (ret < 0) { dev_err(sensor->dev, "failed to read sensor information (%d)\n", |