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

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

This reverts commit d0cac2434c8ecd4863e082d976f5db9405d14b80.  THe MFD
maintainer has some remaining objections that need to be resolved before
it can be accepted.

Link: https://lore.kernel.org/r/20220228193928.3ec6ee98@canb.auug.org.au
Reported-by: Lee Jones <lee.jones@linaro.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Robert Marko <robert.marko@sartura.hr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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);