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path: root/drivers/power/axp221.c
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Diffstat (limited to 'drivers/power/axp221.c')
-rw-r--r--drivers/power/axp221.c37
1 files changed, 34 insertions, 3 deletions
diff --git a/drivers/power/axp221.c b/drivers/power/axp221.c
index 4c86f09..3e07f23 100644
--- a/drivers/power/axp221.c
+++ b/drivers/power/axp221.c
@@ -29,9 +29,7 @@ static int pmic_bus_init(void)
#else
int ret;
- rsb_init();
-
- ret = rsb_set_device_mode(AXP223_DEVICE_MODE_DATA);
+ ret = rsb_init();
if (ret)
return ret;
@@ -302,6 +300,39 @@ int axp221_set_aldo3(unsigned int mvolt)
AXP221_OUTPUT_CTRL3_ALDO3_EN);
}
+int axp221_set_eldo(int eldo_num, unsigned int mvolt)
+{
+ int ret;
+ u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
+ u8 addr, bits;
+
+ switch (eldo_num) {
+ case 3:
+ addr = AXP221_ELDO3_CTRL;
+ bits = AXP221_OUTPUT_CTRL2_ELDO3_EN;
+ break;
+ case 2:
+ addr = AXP221_ELDO2_CTRL;
+ bits = AXP221_OUTPUT_CTRL2_ELDO2_EN;
+ break;
+ case 1:
+ addr = AXP221_ELDO1_CTRL;
+ bits = AXP221_OUTPUT_CTRL2_ELDO1_EN;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (mvolt == 0)
+ return axp221_clrbits(AXP221_OUTPUT_CTRL2, bits);
+
+ ret = pmic_bus_write(addr, cfg);
+ if (ret)
+ return ret;
+
+ return axp221_setbits(AXP221_OUTPUT_CTRL2, bits);
+}
+
int axp221_init(void)
{
/* This cannot be 0 because it is used in SPL before BSS is ready */