diff options
Diffstat (limited to 'drivers/media/i2c/rdacm21.c')
| -rw-r--r-- | drivers/media/i2c/rdacm21.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/media/i2c/rdacm21.c b/drivers/media/i2c/rdacm21.c index 67ed1e5c450d..336fd5d482b7 100644 --- a/drivers/media/i2c/rdacm21.c +++ b/drivers/media/i2c/rdacm21.c @@ -469,7 +469,10 @@ static int rdacm21_initialize(struct rdacm21_device *dev) if (ret) return ret; - /* Enable GPIO1 and hold OV490 in reset during max9271 configuration. */ + /* + * Enable GPIO1 and hold OV490 in reset during max9271 configuration. + * The reset signal has to be asserted for at least 250 useconds. + */ ret = max9271_enable_gpios(&dev->serializer, MAX9271_GPIO1OUT); if (ret) return ret; @@ -477,6 +480,7 @@ static int rdacm21_initialize(struct rdacm21_device *dev) ret = max9271_clear_gpios(&dev->serializer, MAX9271_GPIO1OUT); if (ret) return ret; + usleep_range(250, 500); ret = max9271_configure_gmsl_link(&dev->serializer); if (ret) |