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media: dw9768: activate runtime PM and turn off device

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When dw9768 working with ACPI systems, the dw9768 was turned
by i2c-core during probe, driver need activate the PM runtime
and ask runtime PM to turn off the device.

Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Bingbu Cao 2021-10-15 07:08:39 +01:00 committed by Mauro Carvalho Chehab
parent 2a99839240
commit c09d776eaa
1 changed files with 6 additions and 0 deletions
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6
drivers/media/i2c/dw9768.c
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@ -469,6 +469,11 @@ static int dw9768_probe(struct i2c_client *client)
dw9768->sd.entity.function = MEDIA_ENT_F_LENS;
/*
* Device is already turned on by i2c-core with ACPI domain PM.
* Attempt to turn off the device to satisfy the privacy LED concerns.
*/
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
if (!pm_runtime_enabled(dev)) {
ret = dw9768_runtime_resume(dev);
@ -483,6 +488,7 @@ static int dw9768_probe(struct i2c_client *client)
dev_err(dev, "failed to register V4L2 subdev: %d", ret);
goto err_power_off;
}
pm_runtime_idle(dev);
return 0;