regulator: rt5739: Add DID check and compatible for rt5733

Add compatible and use DID to check rt5733.

The only difference bwtween rt5733 and rt5739 is the output range and
voltage step. These two chips can be distinguished from the DIE id.

Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Link: https://lore.kernel.org/r/1688048996-25606-3-git-send-email-cy_huang@richtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/rt5739.c b/drivers/regulator/rt5739.c
index 0ce6a16..91412c9 100644 (file)
--- a/drivers/regulator/rt5739.c
+++ b/drivers/regulator/rt5739.c
@@ -31,10 +31,17 @@
 #define RT5739_MODEVSEL1_MASK  BIT(1)
 #define RT5739_MODEVSEL0_MASK  BIT(0)
 #define RT5739_VID_MASK                GENMASK(7, 5)
+#define RT5739_DID_MASK                GENMASK(3, 0)
 #define RT5739_ACTD_MASK       BIT(7)
 #define RT5739_ENVSEL1_MASK    BIT(1)
 #define RT5739_ENVSEL0_MASK    BIT(0)
 
+#define RT5733_CHIPDIE_ID      0x1
+#define RT5733_VOLT_MINUV      270000
+#define RT5733_VOLT_MAXUV      1401250
+#define RT5733_VOLT_STPUV      6250
+#define RT5733_N_VOLTS         182
+
 #define RT5739_VOLT_MINUV      300000
 #define RT5739_VOLT_MAXUV      1300000
 #define RT5739_VOLT_STPUV      5000
@@ -93,8 +100,11 @@ static int rt5739_set_suspend_voltage(struct regulator_dev *rdev, int uV)
        const struct regulator_desc *desc = rdev->desc;
        struct regmap *regmap = rdev_get_regmap(rdev);
        unsigned int reg, vsel;
+       int max_uV;
+
+       max_uV = desc->min_uV + desc->uV_step * (desc->n_voltages - 1);
 
-       if (uV < RT5739_VOLT_MINUV || uV > RT5739_VOLT_MAXUV)
+       if (uV < desc->min_uV || uV > max_uV)
                return -EINVAL;
 
        if (desc->vsel_reg == RT5739_REG_NSEL0)
@@ -102,7 +112,7 @@ static int rt5739_set_suspend_voltage(struct regulator_dev *rdev, int uV)
        else
                reg = RT5739_REG_NSEL0;
 
-       vsel = (uV - RT5739_VOLT_MINUV) / RT5739_VOLT_STPUV;
+       vsel = (uV - desc->min_uV) / desc->uV_step;
        return regmap_write(regmap, reg, vsel);
 }
 
@@ -189,15 +199,12 @@ static unsigned int rt5739_of_map_mode(unsigned int mode)
 }
 
 static void rt5739_init_regulator_desc(struct regulator_desc *desc,
-                                      bool vsel_active_high)
+                                      bool vsel_active_high, u8 did)
 {
        /* Fixed */
        desc->name = "rt5739-regulator";
        desc->owner = THIS_MODULE;
        desc->ops = &rt5739_regulator_ops;
-       desc->n_voltages = RT5739_N_VOLTS;
-       desc->min_uV = RT5739_VOLT_MINUV;
-       desc->uV_step = RT5739_VOLT_STPUV;
        desc->vsel_mask = RT5739_VSEL_MASK;
        desc->enable_reg = RT5739_REG_CNTL2;
        desc->active_discharge_reg = RT5739_REG_CNTL1;
@@ -213,6 +220,20 @@ static void rt5739_init_regulator_desc(struct regulator_desc *desc,
                desc->vsel_reg = RT5739_REG_NSEL0;
                desc->enable_mask = RT5739_ENVSEL0_MASK;
        }
+
+       /* Assigned by CHIPDIE ID */
+       switch (did) {
+       case RT5733_CHIPDIE_ID:
+               desc->n_voltages = RT5733_N_VOLTS;
+               desc->min_uV = RT5733_VOLT_MINUV;
+               desc->uV_step = RT5733_VOLT_STPUV;
+               break;
+       default:
+               desc->n_voltages = RT5739_N_VOLTS;
+               desc->min_uV = RT5739_VOLT_MINUV;
+               desc->uV_step = RT5739_VOLT_STPUV;
+               break;
+       }
 }
 
 static const struct regmap_config rt5739_regmap_config = {
@@ -258,7 +279,7 @@ static int rt5739_probe(struct i2c_client *i2c)
 
        vsel_acth = device_property_read_bool(dev, "richtek,vsel-active-high");
 
-       rt5739_init_regulator_desc(desc, vsel_acth);
+       rt5739_init_regulator_desc(desc, vsel_acth, vid & RT5739_DID_MASK);
 
        cfg.dev = dev;
        cfg.of_node = dev_of_node(dev);
@@ -271,6 +292,7 @@ static int rt5739_probe(struct i2c_client *i2c)
 }
 
 static const struct of_device_id rt5739_device_table[] = {
+       { .compatible = "richtek,rt5733" },
        { .compatible = "richtek,rt5739" },
        { /* sentinel */ }
 };