We currently do not have regulator support for the pca945x chips,
so provide a init callback for board code to do the basic setup.
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
---
drivers/mfd/pca9450.c | 21 +++++++++++++++++++++
include/mfd/pca9450.h | 14 ++++++++++++++
2 files changed, 35 insertions(+)
diff --git a/drivers/mfd/pca9450.c b/drivers/mfd/pca9450.c
index 20f6b016fa..8fa5363f8a 100644
--- a/drivers/mfd/pca9450.c
+++ b/drivers/mfd/pca9450.c
@@ -61,6 +61,23 @@ static int pca9450_get_reset_source(struct device *dev, struct regmap *map)
return 0;
};
+static struct regmap *pca9450_map;
+
+static void (*pca9450_init_callback)(struct regmap *map);
+
+int pca9450_register_init_callback(void(*callback)(struct regmap *map))
+{
+ if (pca9450_init_callback)
+ return -EBUSY;
+
+ pca9450_init_callback = callback;
+
+ if (pca9450_map)
+ pca9450_init_callback(pca9450_map);
+
+ return 0;
+}
+
static int __init pca9450_probe(struct device *dev)
{
struct regmap *regmap;
@@ -84,6 +101,10 @@ static int __init pca9450_probe(struct device *dev)
/* Chip ID defined in bits [7:4] */
dev_info(dev, "PMIC Chip ID: 0x%x\n", (reg >> 4));
+ if (pca9450_init_callback)
+ pca9450_init_callback(regmap);
+ pca9450_map = regmap;
+
pca9450_get_reset_source(dev,regmap);
return of_platform_populate(dev->of_node, NULL, dev);
diff --git a/include/mfd/pca9450.h b/include/mfd/pca9450.h
index 256f661911..7071c3a9da 100644
--- a/include/mfd/pca9450.h
+++ b/include/mfd/pca9450.h
@@ -6,6 +6,8 @@
#ifndef PCA9450_H_
#define PCA9450_H_
+#include <linux/regmap.h>
+
enum {
PCA9450_REG_DEV_ID = 0x00,
PCA9450_INT1 = 0x01,
@@ -52,4 +54,16 @@ enum {
PCA9450_REG_NUM,
};
+#ifdef CONFIG_MFD_PCA9450
+
+int pca9450_register_init_callback(void(*callback)(struct regmap *map));
+
+#else
+
+static inline int pca9450_register_init_callback(void(*callback)(struct regmap *map))
+{
+ return -ENODEV;
+}
+#endif
+
#endif
--
2.39.2
