diff --git a/drivers/power/regulator/rk8xx.c b/drivers/power/regulator/rk8xx.c
index e95640a..9444daa 100644
--- a/drivers/power/regulator/rk8xx.c
+++ b/drivers/power/regulator/rk8xx.c
@@ -88,62 +88,63 @@
 	u8 config_reg;
 	u8 vsel_mask;
 	u8 min_sel;
+	u8 max_sel;
 };
 
 static const struct rk8xx_reg_info rk808_buck[] = {
-	{ 712500,   12500, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK808_BUCK_VSEL_MASK, },
-	{ 712500,   12500, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK808_BUCK_VSEL_MASK, },
-	{ 712500,   12500, NA,		      NA,		  REG_BUCK3_CONFIG, RK808_BUCK_VSEL_MASK, },
-	{ 1800000, 100000, REG_BUCK4_ON_VSEL, REG_BUCK4_SLP_VSEL, REG_BUCK4_CONFIG, RK808_BUCK4_VSEL_MASK, },
+	{  712500,  12500, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG,  RK808_BUCK_VSEL_MASK, 0x00, 0x3f },
+	{  712500,  12500, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG,  RK808_BUCK_VSEL_MASK, 0x00, 0x3f },
+	{      NA,     NA,		  NA,		      NA, REG_BUCK3_CONFIG,		       NA,   NA,   NA },
+	{ 1800000, 100000, REG_BUCK4_ON_VSEL, REG_BUCK4_SLP_VSEL, REG_BUCK4_CONFIG, RK808_BUCK4_VSEL_MASK, 0x00, 0x0f },
 };
 
 static const struct rk8xx_reg_info rk816_buck[] = {
 	/* buck 1 */
-	{  712500,  12500, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK818_BUCK_VSEL_MASK, 0x00, },
-	{ 1800000, 200000, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK818_BUCK_VSEL_MASK, 0x3c, },
-	{ 2300000,      0, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK818_BUCK_VSEL_MASK, 0x3f, },
+	{  712500,  12500, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG,  RK818_BUCK_VSEL_MASK, 0x00, 0x3b },
+	{ 1800000, 200000, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG,  RK818_BUCK_VSEL_MASK, 0x3c, 0x3e },
+	{ 2300000,	0, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG,  RK818_BUCK_VSEL_MASK, 0x3f, 0x3f },
 	/* buck 2 */
-	{  712500,  12500, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK818_BUCK_VSEL_MASK, 0x00, },
-	{ 1800000, 200000, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK818_BUCK_VSEL_MASK, 0x3c, },
-	{ 2300000,      0, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK818_BUCK_VSEL_MASK, 0x3f, },
+	{  712500,  12500, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG,  RK818_BUCK_VSEL_MASK, 0x00, 0x3b },
+	{ 1800000, 200000, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG,  RK818_BUCK_VSEL_MASK, 0x3c, 0x3e },
+	{ 2300000,	0, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG,  RK818_BUCK_VSEL_MASK, 0x3f, 0x3f },
 	/* buck 3 */
-	{ 712500,   12500, NA,		      NA,		  REG_BUCK3_CONFIG, RK818_BUCK_VSEL_MASK, },
+	{      NA,     NA,		  NA,		      NA, REG_BUCK3_CONFIG,                    NA,   NA,   NA },
 	/* buck 4 */
-	{  800000, 100000, REG_BUCK4_ON_VSEL, REG_BUCK4_SLP_VSEL, REG_BUCK4_CONFIG, RK818_BUCK4_VSEL_MASK, },
+	{  800000, 100000, REG_BUCK4_ON_VSEL, REG_BUCK4_SLP_VSEL, REG_BUCK4_CONFIG, RK818_BUCK4_VSEL_MASK, 0x00, 0x1f },
 };
 
 static const struct rk8xx_reg_info rk809_buck5[] = {
 	/* buck 5 */
-	{ 1500000,	0, RK809_BUCK5_CONFIG(0), RK809_BUCK5_CONFIG(1), NA, RK809_BUCK5_VSEL_MASK, 0x00, },
-	{ 1800000, 200000, RK809_BUCK5_CONFIG(0), RK809_BUCK5_CONFIG(1), NA, RK809_BUCK5_VSEL_MASK, 0x01, },
-	{ 2800000, 200000, RK809_BUCK5_CONFIG(0), RK809_BUCK5_CONFIG(1), NA, RK809_BUCK5_VSEL_MASK, 0x04, },
-	{ 3300000, 300000, RK809_BUCK5_CONFIG(0), RK809_BUCK5_CONFIG(1), NA, RK809_BUCK5_VSEL_MASK, 0x06, },
+	{ 1500000,	0, RK809_BUCK5_CONFIG(0), RK809_BUCK5_CONFIG(1), NA, RK809_BUCK5_VSEL_MASK, 0x00, 0x00 },
+	{ 1800000, 200000, RK809_BUCK5_CONFIG(0), RK809_BUCK5_CONFIG(1), NA, RK809_BUCK5_VSEL_MASK, 0x01, 0x03 },
+	{ 2800000, 200000, RK809_BUCK5_CONFIG(0), RK809_BUCK5_CONFIG(1), NA, RK809_BUCK5_VSEL_MASK, 0x04, 0x05 },
+	{ 3300000, 300000, RK809_BUCK5_CONFIG(0), RK809_BUCK5_CONFIG(1), NA, RK809_BUCK5_VSEL_MASK, 0x06, 0x07 },
 };
 
 static const struct rk8xx_reg_info rk817_buck[] = {
 	/* buck 1 */
-	{  500000,  12500, RK817_BUCK_ON_VSEL(1), RK817_BUCK_SLP_VSEL(1), RK817_BUCK_CONFIG(1), RK817_BUCK_VSEL_MASK, 0x00, },
-	{ 1500000, 100000, RK817_BUCK_ON_VSEL(1), RK817_BUCK_SLP_VSEL(1), RK817_BUCK_CONFIG(1), RK817_BUCK_VSEL_MASK, 0x50, },
-	{ 2400000,	0, RK817_BUCK_ON_VSEL(1), RK817_BUCK_SLP_VSEL(1), RK817_BUCK_CONFIG(1), RK817_BUCK_VSEL_MASK, 0x59, },
+	{  500000,  12500, RK817_BUCK_ON_VSEL(1), RK817_BUCK_SLP_VSEL(1), RK817_BUCK_CONFIG(1), RK817_BUCK_VSEL_MASK, 0x00, 0x4f },
+	{ 1500000, 100000, RK817_BUCK_ON_VSEL(1), RK817_BUCK_SLP_VSEL(1), RK817_BUCK_CONFIG(1), RK817_BUCK_VSEL_MASK, 0x50, 0x58 },
+	{ 2400000,	0, RK817_BUCK_ON_VSEL(1), RK817_BUCK_SLP_VSEL(1), RK817_BUCK_CONFIG(1), RK817_BUCK_VSEL_MASK, 0x59, 0x7f },
 	/* buck 2 */
-	{  500000,  12500, RK817_BUCK_ON_VSEL(2), RK817_BUCK_SLP_VSEL(2), RK817_BUCK_CONFIG(2), RK817_BUCK_VSEL_MASK, 0x00, },
-	{ 1500000, 100000, RK817_BUCK_ON_VSEL(2), RK817_BUCK_SLP_VSEL(2), RK817_BUCK_CONFIG(2), RK817_BUCK_VSEL_MASK, 0x50, },
-	{ 2400000,	0, RK817_BUCK_ON_VSEL(2), RK817_BUCK_SLP_VSEL(2), RK817_BUCK_CONFIG(2), RK817_BUCK_VSEL_MASK, 0x59, },
+	{  500000,  12500, RK817_BUCK_ON_VSEL(2), RK817_BUCK_SLP_VSEL(2), RK817_BUCK_CONFIG(2), RK817_BUCK_VSEL_MASK, 0x00, 0x4f },
+	{ 1500000, 100000, RK817_BUCK_ON_VSEL(2), RK817_BUCK_SLP_VSEL(2), RK817_BUCK_CONFIG(2), RK817_BUCK_VSEL_MASK, 0x50, 0x58 },
+	{ 2400000,	0, RK817_BUCK_ON_VSEL(2), RK817_BUCK_SLP_VSEL(2), RK817_BUCK_CONFIG(2), RK817_BUCK_VSEL_MASK, 0x59, 0x7f },
 	/* buck 3 */
-	{  500000,  12500, RK817_BUCK_ON_VSEL(3), RK817_BUCK_SLP_VSEL(3), RK817_BUCK_CONFIG(3), RK817_BUCK_VSEL_MASK, 0x00, },
-	{ 1500000, 100000, RK817_BUCK_ON_VSEL(3), RK817_BUCK_SLP_VSEL(3), RK817_BUCK_CONFIG(3), RK817_BUCK_VSEL_MASK, 0x50, },
-	{ 2400000,	0, RK817_BUCK_ON_VSEL(3), RK817_BUCK_SLP_VSEL(3), RK817_BUCK_CONFIG(3), RK817_BUCK_VSEL_MASK, 0x59, },
+	{  500000,  12500, RK817_BUCK_ON_VSEL(3), RK817_BUCK_SLP_VSEL(3), RK817_BUCK_CONFIG(3), RK817_BUCK_VSEL_MASK, 0x00, 0x4f },
+	{ 1500000, 100000, RK817_BUCK_ON_VSEL(3), RK817_BUCK_SLP_VSEL(3), RK817_BUCK_CONFIG(3), RK817_BUCK_VSEL_MASK, 0x50, 0x58 },
+	{ 2400000,	0, RK817_BUCK_ON_VSEL(3), RK817_BUCK_SLP_VSEL(3), RK817_BUCK_CONFIG(3), RK817_BUCK_VSEL_MASK, 0x59, 0x7f },
 	/* buck 4 */
-	{  500000,  12500, RK817_BUCK_ON_VSEL(4), RK817_BUCK_SLP_VSEL(4), RK817_BUCK_CONFIG(4), RK817_BUCK_VSEL_MASK, 0x00, },
-	{ 1500000, 100000, RK817_BUCK_ON_VSEL(4), RK817_BUCK_SLP_VSEL(4), RK817_BUCK_CONFIG(4), RK817_BUCK_VSEL_MASK, 0x50, },
-	{ 3400000,	0, RK817_BUCK_ON_VSEL(4), RK817_BUCK_SLP_VSEL(4), RK817_BUCK_CONFIG(4), RK817_BUCK_VSEL_MASK, 0x63, },
+	{  500000,  12500, RK817_BUCK_ON_VSEL(4), RK817_BUCK_SLP_VSEL(4), RK817_BUCK_CONFIG(4), RK817_BUCK_VSEL_MASK, 0x00, 0x4f },
+	{ 1500000, 100000, RK817_BUCK_ON_VSEL(4), RK817_BUCK_SLP_VSEL(4), RK817_BUCK_CONFIG(4), RK817_BUCK_VSEL_MASK, 0x50, 0x62 },
+	{ 3400000,	0, RK817_BUCK_ON_VSEL(4), RK817_BUCK_SLP_VSEL(4), RK817_BUCK_CONFIG(4), RK817_BUCK_VSEL_MASK, 0x63, 0x7f },
 };
 
 static const struct rk8xx_reg_info rk818_buck[] = {
-	{ 712500,   12500, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG, RK818_BUCK_VSEL_MASK, },
-	{ 712500,   12500, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG, RK818_BUCK_VSEL_MASK, },
-	{ 712500,   12500, NA,		      NA,		  REG_BUCK3_CONFIG, RK818_BUCK_VSEL_MASK, },
-	{ 1800000, 100000, REG_BUCK4_ON_VSEL, REG_BUCK4_SLP_VSEL, REG_BUCK4_CONFIG, RK818_BUCK4_VSEL_MASK, },
+	{ 712500,   12500, REG_BUCK1_ON_VSEL, REG_BUCK1_SLP_VSEL, REG_BUCK1_CONFIG,  RK818_BUCK_VSEL_MASK, 0x00, 0x3f },
+	{ 712500,   12500, REG_BUCK2_ON_VSEL, REG_BUCK2_SLP_VSEL, REG_BUCK2_CONFIG,  RK818_BUCK_VSEL_MASK, 0x00, 0x3f },
+	{     NA,      NA,		  NA,		      NA, REG_BUCK3_CONFIG,		       NA,   NA,   NA },
+	{ 1800000, 100000, REG_BUCK4_ON_VSEL, REG_BUCK4_SLP_VSEL, REG_BUCK4_CONFIG, RK818_BUCK4_VSEL_MASK, 0x00, 0x1f },
 };
 
 #ifdef ENABLE_DRIVER
@@ -706,7 +707,6 @@
 static int buck_get_value(struct udevice *dev)
 {
 	int buck = dev->driver_data - 1;
-	/* We assume level-1 voltage is enough for usage in U-Boot */
 	const struct rk8xx_reg_info *info = get_buck_reg(dev->parent, buck, 0);
 	int mask = info->vsel_mask;
 	int ret, val;
@@ -717,9 +717,12 @@
 	ret = pmic_reg_read(dev->parent, info->vsel_reg);
 	if (ret < 0)
 		return ret;
+
 	val = ret & mask;
+	while (val > info->max_sel)
+		info++;
 
-	return info->min_uv + val * info->step_uv;
+	return info->min_uv + (val - info->min_sel) * info->step_uv;
 }
 
 static int buck_set_value(struct udevice *dev, int uvolt)
@@ -732,7 +735,6 @@
 static int buck_get_suspend_value(struct udevice *dev)
 {
 	int buck = dev->driver_data - 1;
-	/* We assume level-1 voltage is enough for usage in U-Boot */
 	const struct rk8xx_reg_info *info = get_buck_reg(dev->parent, buck, 0);
 	int mask = info->vsel_mask;
 	int ret, val;
@@ -745,8 +747,10 @@
 		return ret;
 
 	val = ret & mask;
+	while (val > info->max_sel)
+		info++;
 
-	return info->min_uv + val * info->step_uv;
+	return info->min_uv + (val - info->min_sel) * info->step_uv;
 }
 
 static int buck_set_suspend_value(struct udevice *dev, int uvolt)