From: Yadwinder Singh Brar<yadi.brar@xxxxxxxxxxx>...
Add support for PMIC/regulator portion of MAX77686 multifunction device.
MAX77686 provides LDOs[1-26] and BUCKs[1-9]. This is initial release of driver
which supports setting and getting the voltage of a regulator with I2C
interface.
Signed-off-by: Yadwinder Singh Brar<yadi.brar@xxxxxxxxxxx>
diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c
new file mode 100644
index 0000000..4aa9722
--- /dev/null
+++ b/drivers/regulator/max77686.c
@@ -0,0 +1,660 @@
+/*
+ * max77686.c - Regulator driver for the Maxim 77686
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ * Chiwoong Byun<woong.byun@xxxxxxxxxxx>
+static int max77686_get_enable_register(struct regulator_dev *rdev,
+ int *reg, int *mask, int *pattern)
+{
+ int rid = rdev_get_id(rdev);
+
+ switch (rid) {
+ case MAX77686_LDO1...MAX77686_LDO26:
+ *reg = MAX77686_REG_LDO1CTRL1 + (rid - MAX77686_LDO1);
+ *mask = 0xC0;
+ *pattern = 0xC0;
+static int max77686_get_voltage_register(struct regulator_dev *rdev,...
+ int *_reg, int *_shift, int *_mask)
+{
+ case MAX77686_BUCK2:
+ reg = MAX77686_REG_BUCK2DVS1;
+ mask = 0xff;
+ break;
+ case MAX77686_BUCK3:
+ reg = MAX77686_REG_BUCK3DVS1;
+ mask = 0xff;
+ break;
+ case MAX77686_BUCK4:
+ reg = MAX77686_REG_BUCK4DVS1;
+ mask = 0xff;
+ break;
+ case MAX77686_BUCK5...MAX77686_BUCK9:
+ reg = MAX77686_REG_BUCK5OUT + (rid - MAX77686_BUCK5) * 2;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ *_reg = reg;
+ *_shift = shift;
+ *_mask = mask;
+
+ return 0;
+}