1 files changed, 101 insertions, 5 deletions

diff --git a/drivers/regulator/tps65090-regulator.c b/drivers/regulator/tps65090-regulator.c
index 41c391789c97..c8e70451df38 100644
--- a/drivers/regulator/tps65090-regulator.c
+++ b/drivers/regulator/tps65090-regulator.c
@@ -19,11 +19,13 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/gpio.h>
+#include <linux/of_gpio.h>
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
 #include <linux/mfd/tps65090.h>
 
 struct tps65090_regulator {
@@ -67,8 +69,8 @@ static struct regulator_desc tps65090_regulator_desc[] = {
         tps65090_REG_DESC(FET5,  "infet5",  0x13, tps65090_reg_contol_ops),
         tps65090_REG_DESC(FET6,  "infet6",  0x14, tps65090_reg_contol_ops),
         tps65090_REG_DESC(FET7,  "infet7",  0x15, tps65090_reg_contol_ops),
-        tps65090_REG_DESC(LDO1,  "vsys_l1", 0,    tps65090_ldo_ops),
-        tps65090_REG_DESC(LDO2,  "vsys_l2", 0,    tps65090_ldo_ops),
+        tps65090_REG_DESC(LDO1,  "vsys-l1", 0,    tps65090_ldo_ops),
+        tps65090_REG_DESC(LDO2,  "vsys-l2", 0,    tps65090_ldo_ops),
 };
 
 static inline bool is_dcdc(int id)
@@ -138,6 +140,92 @@ static void tps65090_configure_regulator_config(
         }
 }
 
+#ifdef CONFIG_OF
+static struct of_regulator_match tps65090_matches[] = {
+        { .name = "dcdc1", },
+        { .name = "dcdc2", },
+        { .name = "dcdc3", },
+        { .name = "fet1",  },
+        { .name = "fet2",  },
+        { .name = "fet3",  },
+        { .name = "fet4",  },
+        { .name = "fet5",  },
+        { .name = "fet6",  },
+        { .name = "fet7",  },
+        { .name = "ldo1",  },
+        { .name = "ldo2",  },
+};
+
+static struct tps65090_platform_data *tps65090_parse_dt_reg_data(
+                struct platform_device *pdev,
+                struct of_regulator_match **tps65090_reg_matches)
+{
+        struct tps65090_platform_data *tps65090_pdata;
+        struct device_node *np = pdev->dev.parent->of_node;
+        struct device_node *regulators;
+        int idx = 0, ret;
+        struct tps65090_regulator_plat_data *reg_pdata;
+
+        tps65090_pdata = devm_kzalloc(&pdev->dev, sizeof(*tps65090_pdata),
+                                GFP_KERNEL);
+        if (!tps65090_pdata) {
+                dev_err(&pdev->dev, "Memory alloc for tps65090_pdata failed\n");
+                return ERR_PTR(-ENOMEM);
+        }
+
+        reg_pdata = devm_kzalloc(&pdev->dev, TPS65090_REGULATOR_MAX *
+                                sizeof(*reg_pdata), GFP_KERNEL);
+        if (!reg_pdata) {
+                dev_err(&pdev->dev, "Memory alloc for reg_pdata failed\n");
+                return ERR_PTR(-ENOMEM);
+        }
+
+        regulators = of_find_node_by_name(np, "regulators");
+        if (!regulators) {
+                dev_err(&pdev->dev, "regulator node not found\n");
+                return ERR_PTR(-ENODEV);
+        }
+
+        ret = of_regulator_match(&pdev->dev, regulators, tps65090_matches,
+                        ARRAY_SIZE(tps65090_matches));
+        if (ret < 0) {
+                dev_err(&pdev->dev,
+                        "Error parsing regulator init data: %d\n", ret);
+                return ERR_PTR(ret);
+        }
+
+        *tps65090_reg_matches = tps65090_matches;
+        for (idx = 0; idx < ARRAY_SIZE(tps65090_matches); idx++) {
+                struct regulator_init_data *ri_data;
+                struct tps65090_regulator_plat_data *rpdata;
+
+                rpdata = &reg_pdata[idx];
+                ri_data = tps65090_matches[idx].init_data;
+                if (!ri_data || !tps65090_matches[idx].of_node)
+                        continue;
+
+                rpdata->reg_init_data = ri_data;
+                rpdata->enable_ext_control = of_property_read_bool(
+                                        tps65090_matches[idx].of_node,
+                                        "ti,enable-ext-control");
+                if (rpdata->enable_ext_control)
+                        rpdata->gpio = of_get_named_gpio(np,
+                                        "dcdc-ext-control-gpios", 0);
+
+                tps65090_pdata->reg_pdata[idx] = rpdata;
+        }
+        return tps65090_pdata;
+}
+#else
+static inline struct tps65090_platform_data *tps65090_parse_dt_reg_data(
+                        struct platform_device *pdev,
+                        struct of_regulator_match **tps65090_reg_matches)
+{
+        *tps65090_reg_matches = NULL;
+        return NULL;
+}
+#endif
+
 static int tps65090_regulator_probe(struct platform_device *pdev)
 {
         struct tps65090 *tps65090_mfd = dev_get_drvdata(pdev->dev.parent);
@@ -147,15 +235,19 @@ static int tps65090_regulator_probe(struct platform_device *pdev)
         struct tps65090_regulator_plat_data *tps_pdata;
         struct tps65090_regulator *pmic;
         struct tps65090_platform_data *tps65090_pdata;
+        struct of_regulator_match *tps65090_reg_matches = NULL;
         int num;
         int ret;
 
         dev_dbg(&pdev->dev, "Probing regulator\n");
 
         tps65090_pdata = dev_get_platdata(pdev->dev.parent);
-        if (!tps65090_pdata) {
+        if (!tps65090_pdata && tps65090_mfd->dev->of_node)
+                tps65090_pdata = tps65090_parse_dt_reg_data(pdev,
+                                        &tps65090_reg_matches);
+        if (IS_ERR_OR_NULL(tps65090_pdata)) {
                 dev_err(&pdev->dev, "Platform data missing\n");
-                return -EINVAL;
+                return tps65090_pdata ? PTR_ERR(tps65090_pdata) : -EINVAL;
         }
 
         pmic = devm_kzalloc(&pdev->dev, TPS65090_REGULATOR_MAX * sizeof(*pmic),
@@ -192,13 +284,17 @@ static int tps65090_regulator_probe(struct platform_device *pdev)
                         }
                 }
 
-                config.dev = &pdev->dev;
+                config.dev = pdev->dev.parent;
                 config.driver_data = ri;
                 config.regmap = tps65090_mfd->rmap;
                 if (tps_pdata)
                         config.init_data = tps_pdata->reg_init_data;
                 else
                         config.init_data = NULL;
+                if (tps65090_reg_matches)
+                        config.of_node = tps65090_reg_matches[num].of_node;
+                else
+                        config.of_node = NULL;
 
                 rdev = regulator_register(ri->desc, &config);
                 if (IS_ERR(rdev)) {