diff options
| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2020-04-27 09:48:29 +0200 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2020-05-26 10:51:20 +0100 |
| commit | d4f9b5428b53dd67f49ee8deed8d4366ed6b1933 (patch) | |
| tree | c46c6a26540f782eee60c362b18ab04cee2d6015 /drivers/mfd | |
| parent | 5037941f31516276e1e95d6aafebd6d9992b24a8 (diff) | |
| download | linux-d4f9b5428b53dd67f49ee8deed8d4366ed6b1933.tar.bz2 | |
mfd: wm8994: Fix driver operation if loaded as modules
WM8994 chip has built-in regulators, which might be used for chip
operation. They are controlled by a separate wm8994-regulator driver,
which should be loaded before this driver calls regulator_get(), because
that driver also provides consumer-supply mapping for the them. If that
driver is not yet loaded, regulator core substitute them with dummy
regulator, what breaks chip operation, because the built-in regulators are
never enabled. Fix this by annotating this driver with MODULE_SOFTDEP()
"pre" dependency to "wm8994_regulator" module.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/wm8994-core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c index 1e9fe7d92597..737dede4a95c 100644 --- a/drivers/mfd/wm8994-core.c +++ b/drivers/mfd/wm8994-core.c @@ -690,3 +690,4 @@ module_i2c_driver(wm8994_i2c_driver); MODULE_DESCRIPTION("Core support for the WM8994 audio CODEC"); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); +MODULE_SOFTDEP("pre: wm8994_regulator"); |