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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2020-04-27 10:48:29 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-06-25 16:41:49 +0300 |
| commit | 696ad8b6100063d5daa70550408f00f6c8b667b1 (patch) | |
| tree | 8253e0e7b884332ad62114072eaf3c97e8b99131 /drivers/mfd/wm8994-core.c | |
| parent | 66f3c8e5d3a419767f30fb79ecc050aeed0c7353 (diff) | |
| download | linux-696ad8b6100063d5daa70550408f00f6c8b667b1.tar.xz | |
mfd: wm8994: Fix driver operation if loaded as modules
[ Upstream commit d4f9b5428b53dd67f49ee8deed8d4366ed6b1933 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/mfd/wm8994-core.c')
| -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 953d0790ffd5..3259fb82d3c4 100644 --- a/drivers/mfd/wm8994-core.c +++ b/drivers/mfd/wm8994-core.c @@ -696,3 +696,4 @@ 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"); |