[v3,4/7] mfd: bcm590xx: Add compatible for BCM59054

Commit Message

Artur Weber Jan. 31, 2025, 6:13 p.m. UTC

The BCM59056 supported by the bcm590xx driver is similar to the
BCM59054 MFD. Add a compatible for it in the driver, in preparation
for extending support of this chip in the bcm590xx regulator driver.

Signed-off-by: Artur Weber <[e-mail]>
---
Changes in v3:
- Fix compilation warning about device_type pointer cast type
- Name the device types enum and use it as the type in the MFD struct
---
 drivers/mfd/bcm590xx.c       | 6 +++++-
 include/linux/mfd/bcm590xx.h | 7 +++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

Patch

diff --git a/drivers/mfd/bcm590xx.c b/drivers/mfd/bcm590xx.c
index 8b56786d85d0182acf91da203b5f943556c08422..23036157480e0116301bfa93932c92f5a80010ea 100644
--- a/drivers/mfd/bcm590xx.c
+++ b/drivers/mfd/bcm590xx.c
@@ -50,6 +50,9 @@  static int bcm590xx_i2c_probe(struct i2c_client *i2c_pri)
 	bcm590xx->dev = &i2c_pri->dev;
 	bcm590xx->i2c_pri = i2c_pri;
 
+	bcm590xx->device_type = \
+			  (uintptr_t) of_device_get_match_data(bcm590xx->dev);
+
 	bcm590xx->regmap_pri = devm_regmap_init_i2c(i2c_pri,
 						 &bcm590xx_regmap_config_pri);
 	if (IS_ERR(bcm590xx->regmap_pri)) {
@@ -91,7 +94,8 @@  static int bcm590xx_i2c_probe(struct i2c_client *i2c_pri)
 }
 
 static const struct of_device_id bcm590xx_of_match[] = {
-	{ .compatible = "brcm,bcm59056" },
+	{ .compatible = "brcm,bcm59054", .data = (void *)BCM59054_TYPE },
+	{ .compatible = "brcm,bcm59056", .data = (void *)BCM59056_TYPE },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, bcm590xx_of_match);
diff --git a/include/linux/mfd/bcm590xx.h b/include/linux/mfd/bcm590xx.h
index 6b8791da6119b22514447bf1572238b71c8b0e97..b76fb57bf0dd17d51580e93db58ece4a4d6dc5e4 100644
--- a/include/linux/mfd/bcm590xx.h
+++ b/include/linux/mfd/bcm590xx.h
@@ -13,12 +13,19 @@ 
 #include <linux/i2c.h>
 #include <linux/regmap.h>
 
+/* device types */
+enum bcm590xx_device_type {
+	BCM59054_TYPE,
+	BCM59056_TYPE,
+};
+
 /* max register address */
 #define BCM590XX_MAX_REGISTER_PRI	0xe7
 #define BCM590XX_MAX_REGISTER_SEC	0xf0
 
 struct bcm590xx {
 	struct device *dev;
+	enum bcm590xx_device_type device_type;
 	struct i2c_client *i2c_pri;
 	struct i2c_client *i2c_sec;
 	struct regmap *regmap_pri;