regulator: rk808: Remove pdata from the regulator

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 17 insertions, 72 deletions

diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c
index e3720085b4ce..d91f2b658080 100644
--- a/drivers/regulator/rk808-regulator.c
+++ b/drivers/regulator/rk808-regulator.c
@@ -14,24 +14,16 @@
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  * more details.
- *
  */
 
 #include <linux/module.h>
-#include <linux/init.h>
 #include <linux/i2c.h>
-#include <linux/err.h>
-#include <linux/platform_device.h>
 #include <linux/mfd/rk808.h>
-#include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/of_regulator.h>
-#include <linux/regmap.h>
-#include <linux/slab.h>
-/*
- * Field Definitions.
- */
+
+/* Field Definitions */
 #define RK808_BUCK_VSEL_MASK    0x3f
 #define RK808_BUCK4_VSEL_MASK   0xf
 #define RK808_LDO_VSEL_MASK     0x1f
@@ -50,10 +42,6 @@ static const int buck_contr_base_addr[] = {
         RK808_BUCK4_CONFIG_REG,
 };
 
-#define rk808_BUCK_SET_VOL_REG(x) (buck_set_vol_base_addr[x])
-#define rk808_BUCK_CONTR_REG(x) (buck_contr_base_addr[x])
-#define rk808_LDO_SET_VOL_REG(x) (ldo_set_vol_base_addr[x])
-
 static const int ldo_set_vol_base_addr[] = {
         RK808_LDO1_ON_VSEL_REG,
         RK808_LDO2_ON_VSEL_REG,
@@ -65,9 +53,7 @@ static const int ldo_set_vol_base_addr[] = {
         RK808_LDO8_ON_VSEL_REG,
 };
 
-/*
- * rk808 voltage number
- */
+/* rk808 voltage number */
 static const struct regulator_linear_range rk808_buck_voltage_ranges[] = {
         REGULATOR_LINEAR_RANGE(700000, 0, 63, 12500),
 };
@@ -308,77 +294,35 @@ static struct of_regulator_match rk808_reg_matches[] = {
         [RK808_ID_SWITCH2]      = { .name = "SWITCH_REG2" },
 };
 
-static int rk808_regulator_dts(struct i2c_client *client,
-                               struct rk808_board *pdata)
-{
-        struct device_node *np, *reg_np;
-        int i, ret;
-
-        np = client->dev.of_node;
-        if (!np) {
-                dev_err(&client->dev, "could not find pmic sub-node\n");
-                return -ENXIO;
-        }
-
-        reg_np = of_get_child_by_name(np, "regulators");
-        if (!reg_np)
-                return -ENXIO;
-
-        ret = of_regulator_match(&client->dev, reg_np, rk808_reg_matches,
-                                 RK808_NUM_REGULATORS);
-        if (ret < 0) {
-                dev_err(&client->dev,
-                        "failed to parse regulator data: %d\n", ret);
-                return ret;
-        }
-
-        for (i = 0; i < RK808_NUM_REGULATORS; i++) {
-                if (!rk808_reg_matches[i].init_data ||
-                    !rk808_reg_matches[i].of_node)
-                        continue;
-
-                pdata->rk808_init_data[i] = rk808_reg_matches[i].init_data;
-                pdata->of_node[i] = rk808_reg_matches[i].of_node;
-        }
-
-        return 0;
-}
-
 static int rk808_regulator_probe(struct platform_device *pdev)
 {
         struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
         struct i2c_client *client = rk808->i2c;
-        struct rk808_board *pdata = dev_get_platdata(&client->dev);
+        struct device_node *reg_np;
         struct regulator_config config = {};
         struct regulator_dev *rk808_rdev;
-        struct regulator_init_data *reg_data;
-        int i = 0;
-        int ret = 0;
+        int ret, i;
 
-        if (!pdata) {
-                pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
-                if (!pdata)
-                        return -ENOMEM;
-        }
+        reg_np = of_get_child_by_name(client->dev.of_node, "regulators");
+        if (!reg_np)
+                return -ENXIO;
 
-        ret = rk808_regulator_dts(client, pdata);
-        if (ret)
+        ret = of_regulator_match(&client->dev, reg_np, rk808_reg_matches,
+                                 RK808_NUM_REGULATORS);
+        if (ret < 0)
                 return ret;
 
         /* Instantiate the regulators */
         for (i = 0; i < RK808_NUM_REGULATORS; i++) {
-                reg_data = pdata->rk808_init_data[i];
-                if (!reg_data)
+                if (!rk808_reg_matches[i].init_data ||
+                    !rk808_reg_matches[i].of_node)
                         continue;
 
                 config.dev = &client->dev;
                 config.driver_data = rk808;
                 config.regmap = rk808->regmap;
-
-                if (client->dev.of_node)
-                        config.of_node = pdata->of_node[i];
-
-                config.init_data = reg_data;
+                config.of_node = rk808_reg_matches[i].of_node;
+                config.init_data = rk808_reg_matches[i].init_data;
 
                 rk808_rdev = devm_regulator_register(&pdev->dev,
                                                      &rk808_reg[i], &config);
@@ -388,6 +332,7 @@ static int rk808_regulator_probe(struct platform_device *pdev)
                         return PTR_ERR(rk808_rdev);
                 }
         }
+
         return 0;
 }
 
@@ -403,6 +348,6 @@ module_platform_driver(rk808_regulator_driver);
 
 MODULE_DESCRIPTION("regulator driver for the rk808 series PMICs");
 MODULE_AUTHOR("Chris Zhong<zyw@rock-chips.com>");
-MODULE_AUTHOR("Zhang Qing<zhanqging@rock-chips.com>");
+MODULE_AUTHOR("Zhang Qing<zhangqing@rock-chips.com>");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:rk808-regulator");