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mfd: simple-mfd-i2c: Add Delta TN48M CPLD support

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Delta TN48M switches have a Lattice CPLD that serves
multiple purposes including being a GPIO expander.

So, lets use the simple I2C MFD driver to provide the MFD core.

Also add a virtual symbol which pulls in the simple-mfd-i2c driver and
provide a common symbol on which the subdevice drivers can depend on.

Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Link: https://lore.kernel.org/r/20220131133049.77780-2-robert.marko@sartura.hr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Robert Marko 2022-01-31 14:30:44 +01:00 committed by Greg Kroah-Hartman
parent 7570fb41e4
commit d0cac2434c
2 changed files with 12 additions and 0 deletions
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11
drivers/mfd/Kconfig
View file

@ -297,6 +297,17 @@ config MFD_ASIC3
This driver supports the ASIC3 multifunction chip found on many
PDAs (mainly iPAQ and HTC based ones)
config MFD_TN48M_CPLD
tristate "Delta Networks TN48M switch CPLD driver"
depends on I2C
depends on ARCH_MVEBU || COMPILE_TEST
select MFD_SIMPLE_MFD_I2C
help
Select this option to enable support for Delta Networks TN48M switch
CPLD. It consists of reset and GPIO drivers. CPLD provides GPIOS-s
for the SFP slots as well as power supply related information.
SFP support depends on the GPIO driver being selected.
config PMIC_DA903X
bool "Dialog Semiconductor DA9030/DA9034 PMIC Support"
depends on I2C=y

1
drivers/mfd/simple-mfd-i2c.c
View file

@ -64,6 +64,7 @@ static int simple_mfd_i2c_probe(struct i2c_client *i2c)
static const struct of_device_id simple_mfd_i2c_of_match[] = {
{ .compatible = "kontron,sl28cpld" },
{ .compatible = "delta,tn48m-cpld" },
{}
};
MODULE_DEVICE_TABLE(of, simple_mfd_i2c_of_match);