leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

regulator: max8973: Let core handle GPIO descriptor

Browse Source 
The probe path of this driver is a bit complex: sometimes the
GPIO descriptor is passed to the regulator core, sometimes
it is not.

To handle it in a simple way: stick with the devm_* resource
management and unhinge the GPIO descriptor devres handling
right before passing it to the regulator core, if we pass it
to the regulator core.

Fixes: e7d2be696f ("regulator: max8973: Pass descriptor instead of GPIO number")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Linus Walleij 2018-12-06 13:43:47 +01:00 committed by Mark Brown
parent 891ddbc79a
commit 48bd226f0a
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/regulator/max8973-regulator.c
View File

@ -808,7 +808,13 @@ static int max8973_probe(struct i2c_client *client,
config.of_node = client->dev.of_node;
config.regmap = max->regmap;
/* Register the regulators */
/*
* Register the regulators
* Turn the GPIO descriptor over to the regulator core for
* lifecycle management if we pass an ena_gpiod.
*/
if (config.ena_gpiod)
devm_gpiod_unhinge(&client->dev, config.ena_gpiod);
rdev = devm_regulator_register(&client->dev, &max->desc, &config);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);