diff mbox series

[v2,2/4] mfd: simple-mfd-i2c: Adds Ampere's Altra SMpro support

Message ID 20210329015238.19474-3-quan@os.amperecomputing.com
State New
Headers show
Series Add Ampere's Altra SMPro hwmon driver | expand

Commit Message

Quan Nguyen March 29, 2021, 1:52 a.m. UTC 
Adds an MFD driver for SMpro found on the Mt.Jade hardware reference
platform with Ampere's Altra processor family.

Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com>
---
 drivers/mfd/Kconfig          | 10 ++++++++++
 drivers/mfd/simple-mfd-i2c.c |  6 ++++++
 2 files changed, 16 insertions(+)

Comments

Lee Jones April 14, 2021, 10:03 a.m. UTC | #1 
On Mon, 29 Mar 2021, Quan Nguyen wrote:

> Adds an MFD driver for SMpro found on the Mt.Jade hardware reference
> platform with Ampere's Altra processor family.
> 
> Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com>
> ---
>  drivers/mfd/Kconfig          | 10 ++++++++++
>  drivers/mfd/simple-mfd-i2c.c |  6 ++++++
>  2 files changed, 16 insertions(+)

For my own reference (apply this as-is to your sign-off block):

  Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
diff mbox series

Patch

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index d07e8cf93286..f7a6460f7aa0 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -77,6 +77,16 @@  config MFD_AS3711
 	help
 	  Support for the AS3711 PMIC from AMS
 
+config MFD_SMPRO
+	tristate "Ampere Computing MFD SMpro core driver"
+	select MFD_SIMPLE_MFD_I2C
+	help
+	  Say yes here to enable SMpro driver support for Ampere's Altra
+	  processor family.
+
+	  Ampere's Altra SMpro exposes an I2C regmap interface that can
+	  be accessed by child devices.
+
 config MFD_AS3722
 	tristate "ams AS3722 Power Management IC"
 	select MFD_CORE
diff --git a/drivers/mfd/simple-mfd-i2c.c b/drivers/mfd/simple-mfd-i2c.c
index 87f684cff9a1..9a44655f5592 100644
--- a/drivers/mfd/simple-mfd-i2c.c
+++ b/drivers/mfd/simple-mfd-i2c.c
@@ -21,6 +21,11 @@  static const struct regmap_config simple_regmap_config = {
 	.val_bits = 8,
 };
 
+static const struct regmap_config simple_word_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 16,
+};
+
 static int simple_mfd_i2c_probe(struct i2c_client *i2c)
 {
 	const struct regmap_config *config;
@@ -39,6 +44,7 @@  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 = "ampere,smpro", .data = &simple_word_regmap_config },
 	{}
 };
 MODULE_DEVICE_TABLE(of, simple_mfd_i2c_of_match);