[PATCH] regulator: s2mpa01: Convert to use simplified DT parsing

[Axel Lin]

Use regulator core's simplified DT parsing code to simply the driver
implementation.

Signed-off-by: Axel Lin <axel....@ingics.com>
---
 drivers/regulator/s2mpa01.c | 39 ++++++++++---------------------------
 1 file changed, 10 insertions(+), 29 deletions(-)

diff --git a/drivers/regulator/s2mpa01.c b/drivers/regulator/s2mpa01.c
index 58a1fe583a6c..da11ac5c09f2 100644
--- a/drivers/regulator/s2mpa01.c
+++ b/drivers/regulator/s2mpa01.c
@@ -20,7 +20,6 @@
 #define S2MPA01_REGULATOR_CNT ARRAY_SIZE(regulators)
 
 struct s2mpa01_info {
-       struct of_regulator_match rdata[S2MPA01_REGULATOR_MAX];
        int ramp_delay24;
        int ramp_delay3;
        int ramp_delay5;
@@ -232,6 +231,8 @@ static const struct regulator_ops s2mpa01_buck_ops = {
 
 #define regulator_desc_ldo(num, step) {                        \
        .name           = "LDO"#num,                    \
+       .of_match       = of_match_ptr("LDO"#num),      \
+       .regulators_node = of_match_ptr("regulators"),  \
        .id             = S2MPA01_LDO##num,             \
        .ops            = &s2mpa01_ldo_ops,             \
        .type           = REGULATOR_VOLTAGE,            \
@@ -247,6 +248,8 @@ static const struct regulator_ops s2mpa01_buck_ops = {
 
 #define regulator_desc_buck1_4(num)    {                       \
        .name           = "BUCK"#num,                           \
+       .of_match       = of_match_ptr("BUCK"#num),             \
+       .regulators_node = of_match_ptr("regulators"),          \
        .id             = S2MPA01_BUCK##num,                    \
        .ops            = &s2mpa01_buck_ops,                    \
        .type           = REGULATOR_VOLTAGE,                    \
@@ -263,6 +266,8 @@ static const struct regulator_ops s2mpa01_buck_ops = {
 
 #define regulator_desc_buck5   {                               \
        .name           = "BUCK5",                              \
+       .of_match       = of_match_ptr("BUCK5"),                \
+       .regulators_node = of_match_ptr("regulators"),          \
        .id             = S2MPA01_BUCK5,                        \
        .ops            = &s2mpa01_buck_ops,                    \
        .type           = REGULATOR_VOLTAGE,                    \
@@ -279,6 +284,8 @@ static const struct regulator_ops s2mpa01_buck_ops = {
 
 #define regulator_desc_buck6_10(num, min, step) {                      \
        .name           = "BUCK"#num,                           \
+       .of_match       = of_match_ptr("BUCK"#num),             \
+       .regulators_node = of_match_ptr("regulators"),          \
        .id             = S2MPA01_BUCK##num,                    \
        .ops            = &s2mpa01_buck_ops,                    \
        .type           = REGULATOR_VOLTAGE,                    \
@@ -336,9 +343,7 @@ static int s2mpa01_pmic_probe(struct platform_device *pdev)
 {
        struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
        struct sec_platform_data *pdata = dev_get_platdata(iodev->dev);
-       struct device_node *reg_np = NULL;
        struct regulator_config config = { };
-       struct of_regulator_match *rdata;
        struct s2mpa01_info *s2mpa01;
        int i;
 
@@ -346,39 +351,15 @@ static int s2mpa01_pmic_probe(struct platform_device 
*pdev)
        if (!s2mpa01)
                return -ENOMEM;
 
-       rdata = s2mpa01->rdata;
-       for (i = 0; i < S2MPA01_REGULATOR_CNT; i++)
-               rdata[i].name = regulators[i].name;
-
-       if (iodev->dev->of_node) {
-               reg_np = of_get_child_by_name(iodev->dev->of_node,
-                                                       "regulators");
-               if (!reg_np) {
-                       dev_err(&pdev->dev,
-                               "could not find regulators sub-node\n");
-                       return -EINVAL;
-               }
-
-               of_regulator_match(&pdev->dev, reg_np, rdata,
-                                               S2MPA01_REGULATOR_MAX);
-               of_node_put(reg_np);
-       }
-
-       platform_set_drvdata(pdev, s2mpa01);
-
-       config.dev = &pdev->dev;
+       config.dev = iodev->dev;
        config.regmap = iodev->regmap_pmic;
        config.driver_data = s2mpa01;
 
        for (i = 0; i < S2MPA01_REGULATOR_MAX; i++) {
                struct regulator_dev *rdev;
+
                if (pdata)
                        config.init_data = pdata->regulators[i].initdata;
-               else
-                       config.init_data = rdata[i].init_data;
-
-               if (reg_np)
-                       config.of_node = rdata[i].of_node;
 
                rdev = devm_regulator_register(&pdev->dev,
                                                &regulators[i], &config);
-- 
2.17.1