diff options
| author | Michael Walle <michael@walle.cc> | 2020-09-14 23:43:29 +0200 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2020-09-17 15:56:58 +0100 |
| commit | 3abee4579484c554961bb0af92a77adc0ebd791d (patch) | |
| tree | 036427cf7ee2eb2fe6d263df7567d5151fa974ff /drivers/mfd/Kconfig | |
| parent | 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5 (diff) | |
mfd: Add simple regmap based I2C driver
There are I2C devices which contain several different functions but
doesn't require any special access functions. For these kind of drivers
an I2C regmap should be enough.
Create an I2C driver which creates an I2C regmap and enumerates its
children. If a device wants to use this as its MFD core driver, it has
to add an individual compatible string. It may provide its own regmap
configuration.
Subdevices can use dev_get_regmap() on the parent to get their regmap
instance.
Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/Kconfig')
| -rw-r--r-- | drivers/mfd/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 33df0837ab41..6e1a38944d28 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1162,6 +1162,18 @@ config MFD_SI476X_CORE To compile this driver as a module, choose M here: the module will be called si476x-core. +config MFD_SIMPLE_MFD_I2C + tristate + depends on I2C + select REGMAP_I2C + help + This driver creates a single register map with the intention for it + to be shared by all sub-devices. + + Once the register map has been successfully initialised, any + sub-devices represented by child nodes in Device Tree will be + subsequently registered. + config MFD_SM501 tristate "Silicon Motion SM501" depends on HAS_DMA |