Merge tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
[firefly-linux-kernel-4.4.55.git] / drivers / regulator / wm831x-ldo.c
index b09ba05ada6df39f6dbbb9f956c6f63f6dee089e..a9a28d8ac18591d4c7126364dbd40197024191f8 100644 (file)
@@ -25,7 +25,7 @@
 #include <linux/mfd/wm831x/regulator.h>
 #include <linux/mfd/wm831x/pdata.h>
 
-#define WM831X_LDO_MAX_NAME 6
+#define WM831X_LDO_MAX_NAME 9
 
 #define WM831X_LDO_CONTROL       0
 #define WM831X_LDO_ON_CONTROL    1
@@ -36,6 +36,7 @@
 
 struct wm831x_ldo {
        char name[WM831X_LDO_MAX_NAME];
+       char supply_name[WM831X_LDO_MAX_NAME];
        struct regulator_desc desc;
        int base;
        struct wm831x *wm831x;
@@ -46,41 +47,6 @@ struct wm831x_ldo {
  * Shared
  */
 
-static int wm831x_ldo_is_enabled(struct regulator_dev *rdev)
-{
-       struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
-       struct wm831x *wm831x = ldo->wm831x;
-       int mask = 1 << rdev_get_id(rdev);
-       int reg;
-
-       reg = wm831x_reg_read(wm831x, WM831X_LDO_ENABLE);
-       if (reg < 0)
-               return reg;
-
-       if (reg & mask)
-               return 1;
-       else
-               return 0;
-}
-
-static int wm831x_ldo_enable(struct regulator_dev *rdev)
-{
-       struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
-       struct wm831x *wm831x = ldo->wm831x;
-       int mask = 1 << rdev_get_id(rdev);
-
-       return wm831x_set_bits(wm831x, WM831X_LDO_ENABLE, mask, mask);
-}
-
-static int wm831x_ldo_disable(struct regulator_dev *rdev)
-{
-       struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
-       struct wm831x *wm831x = ldo->wm831x;
-       int mask = 1 << rdev_get_id(rdev);
-
-       return wm831x_set_bits(wm831x, WM831X_LDO_ENABLE, mask, 0);
-}
-
 static irqreturn_t wm831x_ldo_uv_irq(int irq, void *data)
 {
        struct wm831x_ldo *ldo = data;
@@ -105,7 +71,7 @@ static int wm831x_gp_ldo_list_voltage(struct regulator_dev *rdev,
        /* 0.9-1.6V in 50mV steps */
        if (selector <= WM831X_GP_LDO_SELECTOR_LOW)
                return 900000 + (selector * 50000);
-       /* 1.7-3.3V in 50mV steps */
+       /* 1.7-3.3V in 100mV steps */
        if (selector <= WM831X_GP_LDO_MAX_SELECTOR)
                return 1600000 + ((selector - WM831X_GP_LDO_SELECTOR_LOW)
                                  * 100000);
@@ -160,22 +126,6 @@ static int wm831x_gp_ldo_set_suspend_voltage(struct regulator_dev *rdev,
        return wm831x_gp_ldo_set_voltage_int(rdev, reg, uV, uV, &selector);
 }
 
-static int wm831x_gp_ldo_get_voltage_sel(struct regulator_dev *rdev)
-{
-       struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
-       struct wm831x *wm831x = ldo->wm831x;
-       int reg = ldo->base + WM831X_LDO_ON_CONTROL;
-       int ret;
-
-       ret = wm831x_reg_read(wm831x, reg);
-       if (ret < 0)
-               return ret;
-
-       ret &= WM831X_LDO1_ON_VSEL_MASK;
-
-       return ret;
-}
-
 static unsigned int wm831x_gp_ldo_get_mode(struct regulator_dev *rdev)
 {
        struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
@@ -293,7 +243,7 @@ static unsigned int wm831x_gp_ldo_get_optimum_mode(struct regulator_dev *rdev,
 
 static struct regulator_ops wm831x_gp_ldo_ops = {
        .list_voltage = wm831x_gp_ldo_list_voltage,
-       .get_voltage_sel = wm831x_gp_ldo_get_voltage_sel,
+       .get_voltage_sel = regulator_get_voltage_sel_regmap,
        .set_voltage = wm831x_gp_ldo_set_voltage,
        .set_suspend_voltage = wm831x_gp_ldo_set_suspend_voltage,
        .get_mode = wm831x_gp_ldo_get_mode,
@@ -301,15 +251,16 @@ static struct regulator_ops wm831x_gp_ldo_ops = {
        .get_status = wm831x_gp_ldo_get_status,
        .get_optimum_mode = wm831x_gp_ldo_get_optimum_mode,
 
-       .is_enabled = wm831x_ldo_is_enabled,
-       .enable = wm831x_ldo_enable,
-       .disable = wm831x_ldo_disable,
+       .is_enabled = regulator_is_enabled_regmap,
+       .enable = regulator_enable_regmap,
+       .disable = regulator_disable_regmap,
 };
 
 static __devinit int wm831x_gp_ldo_probe(struct platform_device *pdev)
 {
        struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
        struct wm831x_pdata *pdata = wm831x->dev->platform_data;
+       struct regulator_config config = { };
        int id;
        struct wm831x_ldo *ldo;
        struct resource *res;
@@ -323,9 +274,6 @@ static __devinit int wm831x_gp_ldo_probe(struct platform_device *pdev)
 
        dev_dbg(&pdev->dev, "Probing LDO%d\n", id + 1);
 
-       if (pdata == NULL || pdata->ldo[id] == NULL)
-               return -ENODEV;
-
        ldo = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_ldo), GFP_KERNEL);
        if (ldo == NULL) {
                dev_err(&pdev->dev, "Unable to allocate private data\n");
@@ -344,14 +292,28 @@ static __devinit int wm831x_gp_ldo_probe(struct platform_device *pdev)
 
        snprintf(ldo->name, sizeof(ldo->name), "LDO%d", id + 1);
        ldo->desc.name = ldo->name;
+
+       snprintf(ldo->supply_name, sizeof(ldo->supply_name),
+                "LDO%dVDD", id + 1);
+       ldo->desc.supply_name = ldo->supply_name;
+
        ldo->desc.id = id;
        ldo->desc.type = REGULATOR_VOLTAGE;
        ldo->desc.n_voltages = WM831X_GP_LDO_MAX_SELECTOR + 1;
        ldo->desc.ops = &wm831x_gp_ldo_ops;
        ldo->desc.owner = THIS_MODULE;
-
-       ldo->regulator = regulator_register(&ldo->desc, &pdev->dev,
-                                            pdata->ldo[id], ldo, NULL);
+       ldo->desc.vsel_reg = ldo->base + WM831X_LDO_ON_CONTROL;
+       ldo->desc.vsel_mask = WM831X_LDO1_ON_VSEL_MASK;
+       ldo->desc.enable_reg = WM831X_LDO_ENABLE;
+       ldo->desc.enable_mask = 1 << id;
+
+       config.dev = pdev->dev.parent;
+       if (pdata)
+               config.init_data = pdata->ldo[id];
+       config.driver_data = ldo;
+       config.regmap = wm831x->regmap;
+
+       ldo->regulator = regulator_register(&ldo->desc, &config);
        if (IS_ERR(ldo->regulator)) {
                ret = PTR_ERR(ldo->regulator);
                dev_err(wm831x->dev, "Failed to register LDO%d: %d\n",
@@ -415,7 +377,7 @@ static int wm831x_aldo_list_voltage(struct regulator_dev *rdev,
        /* 1-1.6V in 50mV steps */
        if (selector <= WM831X_ALDO_SELECTOR_LOW)
                return 1000000 + (selector * 50000);
-       /* 1.7-3.5V in 50mV steps */
+       /* 1.7-3.5V in 100mV steps */
        if (selector <= WM831X_ALDO_MAX_SELECTOR)
                return 1600000 + ((selector - WM831X_ALDO_SELECTOR_LOW)
                                  * 100000);
@@ -469,22 +431,6 @@ static int wm831x_aldo_set_suspend_voltage(struct regulator_dev *rdev,
        return wm831x_aldo_set_voltage_int(rdev, reg, uV, uV, &selector);
 }
 
-static int wm831x_aldo_get_voltage_sel(struct regulator_dev *rdev)
-{
-       struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
-       struct wm831x *wm831x = ldo->wm831x;
-       int reg = ldo->base + WM831X_LDO_ON_CONTROL;
-       int ret;
-
-       ret = wm831x_reg_read(wm831x, reg);
-       if (ret < 0)
-               return ret;
-
-       ret &= WM831X_LDO7_ON_VSEL_MASK;
-
-       return ret;
-}
-
 static unsigned int wm831x_aldo_get_mode(struct regulator_dev *rdev)
 {
        struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
@@ -560,22 +506,23 @@ static int wm831x_aldo_get_status(struct regulator_dev *rdev)
 
 static struct regulator_ops wm831x_aldo_ops = {
        .list_voltage = wm831x_aldo_list_voltage,
-       .get_voltage_sel = wm831x_aldo_get_voltage_sel,
+       .get_voltage_sel = regulator_get_voltage_sel_regmap,
        .set_voltage = wm831x_aldo_set_voltage,
        .set_suspend_voltage = wm831x_aldo_set_suspend_voltage,
        .get_mode = wm831x_aldo_get_mode,
        .set_mode = wm831x_aldo_set_mode,
        .get_status = wm831x_aldo_get_status,
 
-       .is_enabled = wm831x_ldo_is_enabled,
-       .enable = wm831x_ldo_enable,
-       .disable = wm831x_ldo_disable,
+       .is_enabled = regulator_is_enabled_regmap,
+       .enable = regulator_enable_regmap,
+       .disable = regulator_disable_regmap,
 };
 
 static __devinit int wm831x_aldo_probe(struct platform_device *pdev)
 {
        struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
        struct wm831x_pdata *pdata = wm831x->dev->platform_data;
+       struct regulator_config config = { };
        int id;
        struct wm831x_ldo *ldo;
        struct resource *res;
@@ -589,9 +536,6 @@ static __devinit int wm831x_aldo_probe(struct platform_device *pdev)
 
        dev_dbg(&pdev->dev, "Probing LDO%d\n", id + 1);
 
-       if (pdata == NULL || pdata->ldo[id] == NULL)
-               return -ENODEV;
-
        ldo = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_ldo), GFP_KERNEL);
        if (ldo == NULL) {
                dev_err(&pdev->dev, "Unable to allocate private data\n");
@@ -610,14 +554,28 @@ static __devinit int wm831x_aldo_probe(struct platform_device *pdev)
 
        snprintf(ldo->name, sizeof(ldo->name), "LDO%d", id + 1);
        ldo->desc.name = ldo->name;
+
+       snprintf(ldo->supply_name, sizeof(ldo->supply_name),
+                "LDO%dVDD", id + 1);
+       ldo->desc.supply_name = ldo->supply_name;
+
        ldo->desc.id = id;
        ldo->desc.type = REGULATOR_VOLTAGE;
        ldo->desc.n_voltages = WM831X_ALDO_MAX_SELECTOR + 1;
        ldo->desc.ops = &wm831x_aldo_ops;
        ldo->desc.owner = THIS_MODULE;
-
-       ldo->regulator = regulator_register(&ldo->desc, &pdev->dev,
-                                            pdata->ldo[id], ldo, NULL);
+       ldo->desc.vsel_reg = ldo->base + WM831X_LDO_ON_CONTROL;
+       ldo->desc.vsel_mask = WM831X_LDO7_ON_VSEL_MASK;
+       ldo->desc.enable_reg = WM831X_LDO_ENABLE;
+       ldo->desc.enable_mask = 1 << id;
+
+       config.dev = pdev->dev.parent;
+       if (pdata)
+               config.init_data = pdata->ldo[id];
+       config.driver_data = ldo;
+       config.regmap = wm831x->regmap;
+
+       ldo->regulator = regulator_register(&ldo->desc, &config);
        if (IS_ERR(ldo->regulator)) {
                ret = PTR_ERR(ldo->regulator);
                dev_err(wm831x->dev, "Failed to register LDO%d: %d\n",
@@ -670,15 +628,6 @@ static struct platform_driver wm831x_aldo_driver = {
 
 #define WM831X_ALIVE_LDO_MAX_SELECTOR 0xf
 
-static int wm831x_alive_ldo_list_voltage(struct regulator_dev *rdev,
-                                     unsigned int selector)
-{
-       /* 0.8-1.55V in 50mV steps */
-       if (selector <= WM831X_ALIVE_LDO_MAX_SELECTOR)
-               return 800000 + (selector * 50000);
-       return -EINVAL;
-}
-
 static int wm831x_alive_ldo_set_voltage_int(struct regulator_dev *rdev,
                                            int reg,
                                            int min_uV, int max_uV,
@@ -690,7 +639,7 @@ static int wm831x_alive_ldo_set_voltage_int(struct regulator_dev *rdev,
 
        vsel = (min_uV - 800000) / 50000;
 
-       ret = wm831x_alive_ldo_list_voltage(rdev, vsel);
+       ret = regulator_list_voltage_linear(rdev, vsel);
        if (ret < 0)
                return ret;
        if (ret < min_uV || ret > max_uV)
@@ -722,22 +671,6 @@ static int wm831x_alive_ldo_set_suspend_voltage(struct regulator_dev *rdev,
        return wm831x_alive_ldo_set_voltage_int(rdev, reg, uV, uV, &selector);
 }
 
-static int wm831x_alive_ldo_get_voltage_sel(struct regulator_dev *rdev)
-{
-       struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
-       struct wm831x *wm831x = ldo->wm831x;
-       int reg = ldo->base + WM831X_ALIVE_LDO_ON_CONTROL;
-       int ret;
-
-       ret = wm831x_reg_read(wm831x, reg);
-       if (ret < 0)
-               return ret;
-
-       ret &= WM831X_LDO11_ON_VSEL_MASK;
-
-       return ret;
-}
-
 static int wm831x_alive_ldo_get_status(struct regulator_dev *rdev)
 {
        struct wm831x_ldo *ldo = rdev_get_drvdata(rdev);
@@ -756,21 +689,22 @@ static int wm831x_alive_ldo_get_status(struct regulator_dev *rdev)
 }
 
 static struct regulator_ops wm831x_alive_ldo_ops = {
-       .list_voltage = wm831x_alive_ldo_list_voltage,
-       .get_voltage_sel = wm831x_alive_ldo_get_voltage_sel,
+       .list_voltage = regulator_list_voltage_linear,
+       .get_voltage_sel = regulator_get_voltage_sel_regmap,
        .set_voltage = wm831x_alive_ldo_set_voltage,
        .set_suspend_voltage = wm831x_alive_ldo_set_suspend_voltage,
        .get_status = wm831x_alive_ldo_get_status,
 
-       .is_enabled = wm831x_ldo_is_enabled,
-       .enable = wm831x_ldo_enable,
-       .disable = wm831x_ldo_disable,
+       .is_enabled = regulator_is_enabled_regmap,
+       .enable = regulator_enable_regmap,
+       .disable = regulator_disable_regmap,
 };
 
 static __devinit int wm831x_alive_ldo_probe(struct platform_device *pdev)
 {
        struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
        struct wm831x_pdata *pdata = wm831x->dev->platform_data;
+       struct regulator_config config = { };
        int id;
        struct wm831x_ldo *ldo;
        struct resource *res;
@@ -785,9 +719,6 @@ static __devinit int wm831x_alive_ldo_probe(struct platform_device *pdev)
 
        dev_dbg(&pdev->dev, "Probing LDO%d\n", id + 1);
 
-       if (pdata == NULL || pdata->ldo[id] == NULL)
-               return -ENODEV;
-
        ldo = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_ldo), GFP_KERNEL);
        if (ldo == NULL) {
                dev_err(&pdev->dev, "Unable to allocate private data\n");
@@ -806,14 +737,30 @@ static __devinit int wm831x_alive_ldo_probe(struct platform_device *pdev)
 
        snprintf(ldo->name, sizeof(ldo->name), "LDO%d", id + 1);
        ldo->desc.name = ldo->name;
+
+       snprintf(ldo->supply_name, sizeof(ldo->supply_name),
+                "LDO%dVDD", id + 1);
+       ldo->desc.supply_name = ldo->supply_name;
+
        ldo->desc.id = id;
        ldo->desc.type = REGULATOR_VOLTAGE;
        ldo->desc.n_voltages = WM831X_ALIVE_LDO_MAX_SELECTOR + 1;
        ldo->desc.ops = &wm831x_alive_ldo_ops;
        ldo->desc.owner = THIS_MODULE;
-
-       ldo->regulator = regulator_register(&ldo->desc, &pdev->dev,
-                                            pdata->ldo[id], ldo, NULL);
+       ldo->desc.vsel_reg = ldo->base + WM831X_ALIVE_LDO_ON_CONTROL;
+       ldo->desc.vsel_mask = WM831X_LDO11_ON_VSEL_MASK;
+       ldo->desc.enable_reg = WM831X_LDO_ENABLE;
+       ldo->desc.enable_mask = 1 << id;
+       ldo->desc.min_uV = 800000;
+       ldo->desc.uV_step = 50000;
+
+       config.dev = pdev->dev.parent;
+       if (pdata)
+               config.init_data = pdata->ldo[id];
+       config.driver_data = ldo;
+       config.regmap = wm831x->regmap;
+
+       ldo->regulator = regulator_register(&ldo->desc, &config);
        if (IS_ERR(ldo->regulator)) {
                ret = PTR_ERR(ldo->regulator);
                dev_err(wm831x->dev, "Failed to register LDO%d: %d\n",