[U-Boot] [PATCH v2 4/5] power: regulator: rk808: add rk818 support

[Jacob Chen]

Add support for the rk818 regulator. The regulator module consists
of 4 DCDCs, 9 LDOs, 1 switch and 1 BOOST converter which is used to
power OTG and HDMI5V.



Signed-off-by: Jacob Chen <jacob-c...@iotwrt.com>
Reviewed-by: Simon Glass <s...@chromium.org>
---

Changes in v2: None

 drivers/power/regulator/rk808.c | 55 ++++++++++++++++++++++++++++++++++++++---
 1 file changed, 51 insertions(+), 4 deletions(-)

diff --git a/drivers/power/regulator/rk808.c b/drivers/power/regulator/rk808.c
index 441806c..71ab76e 100644
--- a/drivers/power/regulator/rk808.c
+++ b/drivers/power/regulator/rk808.c
@@ -25,6 +25,12 @@
 #define RK808_BUCK4_VSEL_MASK  0xf
 #define RK808_LDO_VSEL_MASK    0x1f
 
+#define RK818_BUCK_VSEL_MASK           0x3f
+#define RK818_BUCK4_VSEL_MASK          0x1f
+#define RK818_LDO_VSEL_MASK            0x1f
+#define RK818_LDO3_ON_VSEL_MASK        0xf
+#define RK818_BOOST_ON_VSEL_MASK       0xe0
+
 struct rk808_reg_info {
        uint min_uv;
        uint step_uv;
@@ -50,10 +56,51 @@ static const struct rk808_reg_info rk808_ldo[] = {
        { 1800000, 100000, REG_LDO8_ON_VSEL, RK808_LDO_VSEL_MASK, },
 };
 
+static const struct rk808_reg_info rk818_buck[] = {
+       { 712500, 12500, REG_BUCK1_ON_VSEL, RK818_BUCK_VSEL_MASK, },
+       { 712500, 12500, REG_BUCK2_ON_VSEL, RK818_BUCK_VSEL_MASK, },
+       { 712500, 12500, -1, RK818_BUCK_VSEL_MASK, },
+       { 1800000, 100000, REG_BUCK4_ON_VSEL, RK818_BUCK4_VSEL_MASK, },
+};
+
+static const struct rk808_reg_info rk818_ldo[] = {
+       { 1800000, 100000, REG_LDO1_ON_VSEL, RK818_LDO_VSEL_MASK, },
+       { 1800000, 100000, REG_LDO2_ON_VSEL, RK818_LDO_VSEL_MASK, },
+       { 800000, 100000, REG_LDO3_ON_VSEL, RK818_LDO3_ON_VSEL_MASK, },
+       { 1800000, 100000, REG_LDO4_ON_VSEL, RK818_LDO_VSEL_MASK, },
+       { 1800000, 100000, REG_LDO5_ON_VSEL, RK818_LDO_VSEL_MASK, },
+       { 800000, 100000, REG_LDO6_ON_VSEL, RK818_LDO_VSEL_MASK, },
+       { 800000, 100000, REG_LDO7_ON_VSEL, RK818_LDO_VSEL_MASK, },
+       { 1800000, 100000, REG_LDO8_ON_VSEL, RK818_LDO_VSEL_MASK, },
+};
+
+static const struct rk808_reg_info *get_buck_reg(struct udevice *pmic,
+                                            int num)
+{
+       struct rk808_priv *rk808 = dev_get_priv(pmic);
+       switch (rk808->variant) {
+       case RK818_ID:
+               return &rk818_buck[num];
+       default:
+               return &rk808_buck[num];
+       }
+}
+
+static const struct rk808_reg_info *get_ldo_reg(struct udevice *pmic,
+                                            int num)
+{
+       struct rk808_priv *rk808 = dev_get_priv(pmic);
+       switch (rk808->variant) {
+       case RK818_ID:
+               return &rk818_ldo[num - 1];
+       default:
+               return &rk808_ldo[num - 1];
+       }
+}
 
 static int _buck_set_value(struct udevice *pmic, int buck, int uvolt)
 {
-       const struct rk808_reg_info *info = &rk808_buck[buck - 1];
+       const struct rk808_reg_info *info = get_buck_reg(pmic, buck - 1);
        int mask = info->vsel_mask;
        int val;
 
@@ -89,7 +136,7 @@ static int _buck_set_enable(struct udevice *pmic, int buck, 
bool enable)
 static int buck_get_value(struct udevice *dev)
 {
        int buck = dev->driver_data - 1;
-       const struct rk808_reg_info *info = &rk808_buck[buck];
+       const struct rk808_reg_info *info = get_buck_reg(dev->parent, buck);
        int mask = info->vsel_mask;
        int ret, val;
 
@@ -135,7 +182,7 @@ static bool buck_get_enable(struct udevice *dev)
 static int ldo_get_value(struct udevice *dev)
 {
        int ldo = dev->driver_data - 1;
-       const struct rk808_reg_info *info = &rk808_ldo[ldo];
+       const struct rk808_reg_info *info = get_ldo_reg(dev->parent, ldo);
        int mask = info->vsel_mask;
        int ret, val;
 
@@ -152,7 +199,7 @@ static int ldo_get_value(struct udevice *dev)
 static int ldo_set_value(struct udevice *dev, int uvolt)
 {
        int ldo = dev->driver_data - 1;
-       const struct rk808_reg_info *info = &rk808_ldo[ldo];
+       const struct rk808_reg_info *info = get_ldo_reg(dev->parent, ldo);
        int mask = info->vsel_mask;
        int val;
 
-- 
2.7.4

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