diff options
| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2020-04-27 09:48:29 +0200 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2020-06-29 20:07:49 -0400 |
| commit | f188af0ff63f7f3aa5d939a7bc78fd5a34a40296 (patch) | |
| tree | c4bf78034e05798678d7d3347933c2aabfc73a78 /drivers/mfd | |
| parent | 90168376586697d471f26515b38a36bbcc4c2d10 (diff) | |
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')
| -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 7eec619a6023..3d1457189fa2 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"); |