1 files changed, 40 insertions, 189 deletions

diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c
index ab00cab905b..f7ed20a5a8b 100644
--- a/drivers/regulator/tps65217-regulator.c
+++ b/drivers/regulator/tps65217-regulator.c
@@ -27,7 +27,7 @@
 #include <linux/regulator/machine.h>
 #include <linux/mfd/tps65217.h>
 
-#define TPS65217_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _em, _t) \
+#define TPS65217_REGULATOR(_name, _id, _ops, _n, _vr, _vm, _em, _t, _lr, _nlr) \
 	{						\
 		.name		= _name,		\
 		.id		= _id,			\
@@ -40,17 +40,10 @@
 		.enable_reg	= TPS65217_REG_ENABLE,	\
 		.enable_mask	= _em,			\
 		.volt_table	= _t,			\
+		.linear_ranges	= _lr,			\
+		.n_linear_ranges = _nlr,		\
 	}						\
 
-#define TPS65217_INFO(_nm, _min, _max, _f1, _f2)	\
-	{						\
-		.name		= _nm,			\
-		.min_uV		= _min,			\
-		.max_uV		= _max,			\
-		.vsel_to_uv	= _f1,			\
-		.uv_to_vsel	= _f2,			\
-	}
-
 static const unsigned int LDO1_VSEL_table[] = {
 	1000000, 1100000, 1200000, 1250000,
 	1300000, 1350000, 1400000, 1500000,
@@ -58,88 +51,18 @@ static const unsigned int LDO1_VSEL_table[] = {
 	2800000, 3000000, 3100000, 3300000,
 };
 
-static int tps65217_vsel_to_uv1(unsigned int vsel)
-{
-	int uV = 0;
-
-	if (vsel > 63)
-		return -EINVAL;
-
-	if (vsel <= 24)
-		uV = vsel * 25000 + 900000;
-	else if (vsel <= 52)
-		uV = (vsel - 24) * 50000 + 1500000;
-	else if (vsel < 56)
-		uV = (vsel - 52) * 100000 + 2900000;
-	else
-		uV = 3300000;
-
-	return uV;
-}
-
-static int tps65217_uv_to_vsel1(int uV, unsigned int *vsel)
-{
-	if (uV < 0 || uV > 3300000)
-		return -EINVAL;
-
-	if (uV <= 1500000)
-		*vsel = DIV_ROUND_UP(uV - 900000, 25000);
-	else if (uV <= 2900000)
-		*vsel = 24 + DIV_ROUND_UP(uV - 1500000, 50000);
-	else if (uV < 3300000)
-		*vsel = 52 + DIV_ROUND_UP(uV - 2900000, 100000);
-	else
-		*vsel = 56;
-
-	return 0;
-}
-
-static int tps65217_vsel_to_uv2(unsigned int vsel)
-{
-	int uV = 0;
-
-	if (vsel > 31)
-		return -EINVAL;
-
-	if (vsel <= 8)
-		uV = vsel * 50000 + 1500000;
-	else if (vsel <= 13)
-		uV = (vsel - 8) * 100000 + 1900000;
-	else
-		uV = (vsel - 13) * 50000 + 2400000;
-
-	return uV;
-}
-
-static int tps65217_uv_to_vsel2(int uV, unsigned int *vsel)
-{
-	if (uV < 0 || uV > 3300000)
-		return -EINVAL;
-
-	if (uV <= 1900000)
-		*vsel = DIV_ROUND_UP(uV - 1500000, 50000);
-	else if (uV <= 2400000)
-		*vsel = 8 + DIV_ROUND_UP(uV - 1900000, 100000);
-	else
-		*vsel = 13 + DIV_ROUND_UP(uV - 2400000, 50000);
-
-	return 0;
-}
+static const struct regulator_linear_range tps65217_uv1_ranges[] = {
+	REGULATOR_LINEAR_RANGE(900000, 0, 24, 25000),
+	REGULATOR_LINEAR_RANGE(1550000, 25, 30, 50000),
+	REGULATOR_LINEAR_RANGE(1850000, 31, 52, 50000),
+	REGULATOR_LINEAR_RANGE(3000000, 53, 55, 100000),
+	REGULATOR_LINEAR_RANGE(3300000, 56, 62, 0),
+};
 
-static struct tps_info tps65217_pmic_regs[] = {
-	TPS65217_INFO("DCDC1", 900000, 1800000, tps65217_vsel_to_uv1,
-			tps65217_uv_to_vsel1),
-	TPS65217_INFO("DCDC2", 900000, 3300000, tps65217_vsel_to_uv1,
-			tps65217_uv_to_vsel1),
-	TPS65217_INFO("DCDC3", 900000, 1500000, tps65217_vsel_to_uv1,
-			tps65217_uv_to_vsel1),
-	TPS65217_INFO("LDO1", 1000000, 3300000, NULL, NULL),
-	TPS65217_INFO("LDO2", 900000, 3300000, tps65217_vsel_to_uv1,
-			tps65217_uv_to_vsel1),
-	TPS65217_INFO("LDO3", 1800000, 3300000, tps65217_vsel_to_uv2,
-			tps65217_uv_to_vsel2),
-	TPS65217_INFO("LDO4", 1800000, 3300000, tps65217_vsel_to_uv2,
-			tps65217_uv_to_vsel2),
+static const struct regulator_linear_range tps65217_uv2_ranges[] = {
+	REGULATOR_LINEAR_RANGE(1500000, 0, 8, 50000),
+	REGULATOR_LINEAR_RANGE(2000000, 9, 13, 100000),
+	REGULATOR_LINEAR_RANGE(2450000, 14, 31, 50000),
 };
 
 static int tps65217_pmic_enable(struct regulator_dev *dev)
@@ -192,49 +115,6 @@ static int tps65217_pmic_set_voltage_sel(struct regulator_dev *dev,
 	return ret;
 }
 
-static int tps65217_pmic_map_voltage(struct regulator_dev *dev,
-				     int min_uV, int max_uV)
-{
-
-	struct tps65217 *tps = rdev_get_drvdata(dev);
-	unsigned int sel, rid = rdev_get_id(dev);
-	int ret;
-
-	/* LDO1 uses regulator_map_voltage_iterate() */
-	if (rid == TPS65217_LDO_1)
-		return -EINVAL;
-
-	if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
-		return -EINVAL;
-
-	if (min_uV < tps->info[rid]->min_uV)
-		min_uV = tps->info[rid]->min_uV;
-
-	if (max_uV < tps->info[rid]->min_uV || min_uV > tps->info[rid]->max_uV)
-		return -EINVAL;
-
-	ret = tps->info[rid]->uv_to_vsel(min_uV, &sel);
-	if (ret)
-		return ret;
-
-	return sel;
-}
-
-static int tps65217_pmic_list_voltage(struct regulator_dev *dev,
-					unsigned selector)
-{
-	struct tps65217 *tps = rdev_get_drvdata(dev);
-	unsigned int rid = rdev_get_id(dev);
-
-	if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4)
-		return -EINVAL;
-
-	if (selector >= dev->desc->n_voltages)
-		return -EINVAL;
-
-	return tps->info[rid]->vsel_to_uv(selector);
-}
-
 /* Operations permitted on DCDCx, LDO2, LDO3 and LDO4 */
 static struct regulator_ops tps65217_pmic_ops = {
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -242,8 +122,8 @@ static struct regulator_ops tps65217_pmic_ops = {
 	.disable		= tps65217_pmic_disable,
 	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
 	.set_voltage_sel	= tps65217_pmic_set_voltage_sel,
-	.list_voltage		= tps65217_pmic_list_voltage,
-	.map_voltage		= tps65217_pmic_map_voltage,
+	.list_voltage		= regulator_list_voltage_linear_range,
+	.map_voltage		= regulator_map_voltage_linear_range,
 };
 
 /* Operations permitted on LDO1 */
@@ -254,32 +134,39 @@ static struct regulator_ops tps65217_pmic_ldo1_ops = {
 	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
 	.set_voltage_sel	= tps65217_pmic_set_voltage_sel,
 	.list_voltage		= regulator_list_voltage_table,
+	.map_voltage		= regulator_map_voltage_ascend,
 };
 
 static const struct regulator_desc regulators[] = {
 	TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1, tps65217_pmic_ops, 64,
 			   TPS65217_REG_DEFDCDC1, TPS65217_DEFDCDCX_DCDC_MASK,
-			   TPS65217_ENABLE_DC1_EN, NULL),
+			   TPS65217_ENABLE_DC1_EN, NULL, tps65217_uv1_ranges,
+			   2),	/* DCDC1 voltage range: 900000 ~ 1800000 */
 	TPS65217_REGULATOR("DCDC2", TPS65217_DCDC_2, tps65217_pmic_ops, 64,
 			   TPS65217_REG_DEFDCDC2, TPS65217_DEFDCDCX_DCDC_MASK,
-			   TPS65217_ENABLE_DC2_EN, NULL),
+			   TPS65217_ENABLE_DC2_EN, NULL, tps65217_uv1_ranges,
+			   ARRAY_SIZE(tps65217_uv1_ranges)),
 	TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3, tps65217_pmic_ops, 64,
 			   TPS65217_REG_DEFDCDC3, TPS65217_DEFDCDCX_DCDC_MASK,
-			   TPS65217_ENABLE_DC3_EN, NULL),
+			   TPS65217_ENABLE_DC3_EN, NULL, tps65217_uv1_ranges,
+			   1),	/* DCDC3 voltage range: 900000 ~ 1500000 */
 	TPS65217_REGULATOR("LDO1", TPS65217_LDO_1, tps65217_pmic_ldo1_ops, 16,
 			   TPS65217_REG_DEFLDO1, TPS65217_DEFLDO1_LDO1_MASK,
-			   TPS65217_ENABLE_LDO1_EN, LDO1_VSEL_table),
+			   TPS65217_ENABLE_LDO1_EN, LDO1_VSEL_table, NULL, 0),
 	TPS65217_REGULATOR("LDO2", TPS65217_LDO_2, tps65217_pmic_ops, 64,
 			   TPS65217_REG_DEFLDO2, TPS65217_DEFLDO2_LDO2_MASK,
-			   TPS65217_ENABLE_LDO2_EN, NULL),
+			   TPS65217_ENABLE_LDO2_EN, NULL, tps65217_uv1_ranges,
+			   ARRAY_SIZE(tps65217_uv1_ranges)),
 	TPS65217_REGULATOR("LDO3", TPS65217_LDO_3, tps65217_pmic_ops, 32,
 			   TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK,
 			   TPS65217_ENABLE_LS1_EN | TPS65217_DEFLDO3_LDO3_EN,
-			   NULL),
+			   NULL, tps65217_uv2_ranges,
+			   ARRAY_SIZE(tps65217_uv2_ranges)),
 	TPS65217_REGULATOR("LDO4", TPS65217_LDO_4, tps65217_pmic_ops, 32,
 			   TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK,
 			   TPS65217_ENABLE_LS2_EN | TPS65217_DEFLDO4_LDO4_EN,
-			   NULL),
+			   NULL, tps65217_uv2_ranges,
+			   ARRAY_SIZE(tps65217_uv2_ranges)),
 };
 
 #ifdef CONFIG_OF
@@ -301,12 +188,12 @@ static struct tps65217_board *tps65217_parse_dt(struct platform_device *pdev)
 	struct device_node *regs;
 	int i, count;
 
-	regs = of_find_node_by_name(node, "regulators");
+	regs = of_get_child_by_name(node, "regulators");
 	if (!regs)
 		return NULL;
 
-	count = of_regulator_match(pdev->dev.parent, regs,
-				reg_matches, TPS65217_NUM_REGULATOR);
+	count = of_regulator_match(&pdev->dev, regs, reg_matches,
+				   TPS65217_NUM_REGULATOR);
 	of_node_put(regs);
 	if ((count < 0) || (count > TPS65217_NUM_REGULATOR))
 		return NULL;
@@ -316,7 +203,7 @@ static struct tps65217_board *tps65217_parse_dt(struct platform_device *pdev)
 		return NULL;
 
 	for (i = 0; i < count; i++) {
-		if (!reg_matches[i].init_data || !reg_matches[i].of_node)
+		if (!reg_matches[i].of_node)
 			continue;
 
 		pdata->tps65217_init_data[i] = reg_matches[i].init_data;
@@ -332,14 +219,13 @@ static struct tps65217_board *tps65217_parse_dt(struct platform_device *pdev)
 }
 #endif
 
-static int __devinit tps65217_regulator_probe(struct platform_device *pdev)
+static int tps65217_regulator_probe(struct platform_device *pdev)
 {
 	struct tps65217 *tps = dev_get_drvdata(pdev->dev.parent);
 	struct tps65217_board *pdata = dev_get_platdata(tps->dev);
-	struct regulator_init_data *reg_data;
 	struct regulator_dev *rdev;
 	struct regulator_config config = { };
-	int i, ret;
+	int i;
 
 	if (tps->dev->of_node)
 		pdata = tps65217_parse_dt(pdev);
@@ -357,57 +243,23 @@ static int __devinit tps65217_regulator_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, tps);
 
 	for (i = 0; i < TPS65217_NUM_REGULATOR; i++) {
-
-		reg_data = pdata->tps65217_init_data[i];
-
-		/*
-		 * Regulator API handles empty constraints but not NULL
-		 * constraints
-		 */
-		if (!reg_data)
-			continue;
-
 		/* Register the regulators */
-		tps->info[i] = &tps65217_pmic_regs[i];
-
 		config.dev = tps->dev;
-		config.init_data = reg_data;
+		config.init_data = pdata->tps65217_init_data[i];
 		config.driver_data = tps;
 		config.regmap = tps->regmap;
 		if (tps->dev->of_node)
 			config.of_node = pdata->of_node[i];
 
-		rdev = regulator_register(&regulators[i], &config);
+		rdev = devm_regulator_register(&pdev->dev, &regulators[i],
+					       &config);
 		if (IS_ERR(rdev)) {
 			dev_err(tps->dev, "failed to register %s regulator\n",
 				pdev->name);
-			ret = PTR_ERR(rdev);
-			goto err_unregister_regulator;
+			return PTR_ERR(rdev);
 		}
-
-		/* Save regulator for cleanup */
-		tps->rdev[i] = rdev;
 	}
 	return 0;
-
-err_unregister_regulator:
-	while (--i >= 0)
-		regulator_unregister(tps->rdev[i]);
-
-	return ret;
-}
-
-static int __devexit tps65217_regulator_remove(struct platform_device *pdev)
-{
-	struct tps65217 *tps = platform_get_drvdata(pdev);
-	unsigned int i;
-
-	for (i = 0; i < TPS65217_NUM_REGULATOR; i++)
-		regulator_unregister(tps->rdev[i]);
-
-	platform_set_drvdata(pdev, NULL);
-
-	return 0;
 }
 
 static struct platform_driver tps65217_regulator_driver = {
@@ -415,7 +267,6 @@ static struct platform_driver tps65217_regulator_driver = {
 		.name = "tps65217-pmic",
 	},
 	.probe = tps65217_regulator_probe,
-	.remove = __devexit_p(tps65217_regulator_remove),
 };
 
 static int __init tps65217_regulator_init(void)