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Subject[PATCH v10 1/6] mfd: simple-mfd-i2c: Add Delta TN48M CPLD support
Date
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.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
---
Changes in v9:
* Rebased onto 5.17-rc1

Changes in v9:
* Depend on ARCH_MVEBU or COMPILE_TEST

Changes in v2:
* Drop the custom MFD driver and header
* Use simple I2C MFD driver
---
drivers/mfd/Kconfig | 11 +++++++++++
drivers/mfd/simple-mfd-i2c.c | 1 +
2 files changed, 12 insertions(+)

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index ba0b3eb131f1..be1ad8ce54aa 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -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
diff --git a/drivers/mfd/simple-mfd-i2c.c b/drivers/mfd/simple-mfd-i2c.c
index 51536691ad9d..0d6a51ed6286 100644
--- a/drivers/mfd/simple-mfd-i2c.c
+++ b/drivers/mfd/simple-mfd-i2c.c
@@ -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);
--
2.34.1
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