diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2021-01-20 22:49:53 +0100 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2021-02-04 13:54:39 +0000 |
| commit | 06e577b45db37e8a96ce04e7daa64480492b4ace (patch) | |
| tree | 7035a27f69f868efdff447cf0b36d1e148ed5c5c /drivers | |
| parent | 5c8fe583cce542aa0b84adc939ce85293de36e5e (diff) | |
| download | linux-06e577b45db37e8a96ce04e7daa64480492b4ace.tar.bz2 | |
mfd: arizona: Add MODULE_SOFTDEP("pre: arizona_ldo1")
The (shared) probing code of the arizona-i2c and arizona-spi modules
takes the following steps during init:
1. Call mfd_add_devices() for a set of early child-devices, this
includes the arizona_ldo1 device which provides one of the
core-regulators.
2. Bulk enable the core-regulators.
3. Read the device id.
4. Call mfd_add_devices() for the other child-devices.
This sequence depends on 1. leading to not only the child-device
being created, but also the driver for the child-device binding
to it and registering its regulator.
This requires the arizona_ldo1 driver to be loaded before the
shared probing code runs. Add a softdep for this to both modules to
ensure that this requirement is met.
Note this mirrors the existing MODULE_SOFTDEP("pre: wm8994_regulator")
in the wm8994 code, which has a similar init sequence.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mfd/arizona-i2c.c | 1 | ||||
| -rw-r--r-- | drivers/mfd/arizona-spi.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mfd/arizona-i2c.c b/drivers/mfd/arizona-i2c.c index 4b58e3ad6eb6..2a4a3a164d0a 100644 --- a/drivers/mfd/arizona-i2c.c +++ b/drivers/mfd/arizona-i2c.c @@ -115,6 +115,7 @@ static struct i2c_driver arizona_i2c_driver = { module_i2c_driver(arizona_i2c_driver); +MODULE_SOFTDEP("pre: arizona_ldo1"); MODULE_DESCRIPTION("Arizona I2C bus interface"); MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); MODULE_LICENSE("GPL"); diff --git a/drivers/mfd/arizona-spi.c b/drivers/mfd/arizona-spi.c index 2633e147b76c..704f214d2614 100644 --- a/drivers/mfd/arizona-spi.c +++ b/drivers/mfd/arizona-spi.c @@ -110,6 +110,7 @@ static struct spi_driver arizona_spi_driver = { module_spi_driver(arizona_spi_driver); +MODULE_SOFTDEP("pre: arizona_ldo1"); MODULE_DESCRIPTION("Arizona SPI bus interface"); MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); MODULE_LICENSE("GPL"); |