[PATCH v2 1/2] regulator: rk8xx: Fix buck get and set enabled state on RK806

[Jonas Karlman]

Wrong POWER_EN reg is used to get and set enabled state for the RK806
buck 4 and 8 regulators, also wrong POWER_SLP_EN0 bit is used for
suspend state for the RK806 buck 1-8 regulators.

Fix this by not adding one to the zero based buck variable.

Fixes: f172575d92cd ("power: rk8xx: add support for RK806")
Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
Reviewed-by: Kever Yang <kever.yang at rock-chips.com>
Reviewed-by: Quentin Schulz <quentin.schulz at cherry.de>
---
v2:
- Move buck + 1 related changes into a separate patch
- Collect r-b tags
---
 drivers/power/regulator/rk8xx.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/power/regulator/rk8xx.c b/drivers/power/regulator/rk8xx.c
index 34e61511d884..b910943c2c46 100644
--- a/drivers/power/regulator/rk8xx.c
+++ b/drivers/power/regulator/rk8xx.c
@@ -415,7 +415,7 @@ static int _buck_set_enable(struct udevice *pmic, int buck, bool enable)
 		break;
 	case RK806_ID:
 		value = RK806_POWER_EN_CLRSETBITS(buck % 4, enable);
-		en_reg = RK806_POWER_EN((buck + 1) / 4);
+		en_reg = RK806_POWER_EN(buck / 4);
 		ret = pmic_reg_write(pmic, en_reg, value);
 		break;
 	case RK808_ID:
@@ -494,7 +494,7 @@ static int _buck_get_enable(struct udevice *pmic, int buck)
 		break;
 	case RK806_ID:
 		mask = BIT(buck % 4);
-		ret = pmic_reg_read(pmic, RK806_POWER_EN((buck + 1) / 4));
+		ret = pmic_reg_read(pmic, RK806_POWER_EN(buck / 4));
 		break;
 	case RK808_ID:
 	case RK818_ID:
@@ -544,7 +544,7 @@ static int _buck_set_suspend_enable(struct udevice *pmic, int buck, bool enable)
 				mask = BIT(buck + 1 - 3);
 			} else {
 				reg = RK806_POWER_SLP_EN0;
-				mask = BIT(buck + 1);
+				mask = BIT(buck);
 			}
 			ret = pmic_clrsetbits(pmic, reg, mask, enable ? mask : 0);
 		}
@@ -595,7 +595,7 @@ static int _buck_get_suspend_enable(struct udevice *pmic, int buck)
 				mask = BIT(buck + 1 - 3);
 			} else {
 				reg = RK806_POWER_SLP_EN0;
-				mask = BIT(buck + 1);
+				mask = BIT(buck);
 			}
 			val = pmic_reg_read(pmic, reg);
 		}
-- 
2.46.1