diff mbox series

[v2,26/30] ccs: Use longer pre-I²C sleep for CCS compliant devices

Message ID 20201201164246.18003-27-sakari.ailus@linux.intel.com (mailing list archive)
State New, archived
Headers show
Series Trivial MIPI CCS support | expand

Commit Message

Sakari Ailus Dec. 1, 2020, 4:42 p.m. UTC 
Longer idle period is required on I²C bus before the first transaction
after lifting xshutdown.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 drivers/media/i2c/ccs/ccs-core.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/media/i2c/ccs/ccs-core.c b/drivers/media/i2c/ccs/ccs-core.c
index 863295b8fb5c..5014aa0d7969 100644
--- a/drivers/media/i2c/ccs/ccs-core.c
+++ b/drivers/media/i2c/ccs/ccs-core.c
@@ -1300,6 +1300,7 @@  static int ccs_power_on(struct device *dev)
 	 */
 	struct ccs_sensor *sensor =
 		container_of(ssd, struct ccs_sensor, ssds[0]);
+	const struct ccs_device *ccsdev = device_get_match_data(dev);
 	unsigned int sleep;
 	int rval;
 
@@ -1320,7 +1321,11 @@  static int ccs_power_on(struct device *dev)
 	gpiod_set_value(sensor->reset, 0);
 	gpiod_set_value(sensor->xshutdown, 1);
 
-	sleep = SMIAPP_RESET_DELAY(sensor->hwcfg.ext_clk);
+	if (ccsdev->flags & CCS_DEVICE_FLAG_IS_SMIA)
+		sleep = SMIAPP_RESET_DELAY(sensor->hwcfg.ext_clk);
+	else
+		sleep = 5000;
+
 	usleep_range(sleep, sleep);
 
 	/*