regulator: tps65910: add support for input supply

There is multiple voltage input pins on device which
takes the voltage input for different voltage regulator.
Support to configure the voltage input supplied by
different regulator for each regulators.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c
index a534e0872006..e319d963fee6 100644
--- a/drivers/regulator/tps65910-regulator.c
+++ b/drivers/regulator/tps65910-regulator.c
@@ -85,6 +85,7 @@ static const unsigned int VMMC_VSEL_table[] = {
 
 struct tps_info {
 	const char *name;
+	const char *vin_name;
 	u8 n_voltages;
 	const unsigned int *voltage_table;
 	int enable_time_us;
@@ -93,20 +94,24 @@ struct tps_info {
 static struct tps_info tps65910_regs[] = {
 	{
 		.name = "vrtc",
+		.vin_name = "vcc7",
 		.enable_time_us = 2200,
 	},
 	{
 		.name = "vio",
+		.vin_name = "vccio",
 		.n_voltages = ARRAY_SIZE(VIO_VSEL_table),
 		.voltage_table = VIO_VSEL_table,
 		.enable_time_us = 350,
 	},
 	{
 		.name = "vdd1",
+		.vin_name = "vcc1",
 		.enable_time_us = 350,
 	},
 	{
 		.name = "vdd2",
+		.vin_name = "vcc2",
 		.enable_time_us = 350,
 	},
 	{
@@ -117,48 +122,56 @@ static struct tps_info tps65910_regs[] = {
 	},
 	{
 		.name = "vdig1",
+		.vin_name = "vcc6",
 		.n_voltages = ARRAY_SIZE(VDIG1_VSEL_table),
 		.voltage_table = VDIG1_VSEL_table,
 		.enable_time_us = 100,
 	},
 	{
 		.name = "vdig2",
+		.vin_name = "vcc6",
 		.n_voltages = ARRAY_SIZE(VDIG2_VSEL_table),
 		.voltage_table = VDIG2_VSEL_table,
 		.enable_time_us = 100,
 	},
 	{
 		.name = "vpll",
+		.vin_name = "vcc5",
 		.n_voltages = ARRAY_SIZE(VPLL_VSEL_table),
 		.voltage_table = VPLL_VSEL_table,
 		.enable_time_us = 100,
 	},
 	{
 		.name = "vdac",
+		.vin_name = "vcc5",
 		.n_voltages = ARRAY_SIZE(VDAC_VSEL_table),
 		.voltage_table = VDAC_VSEL_table,
 		.enable_time_us = 100,
 	},
 	{
 		.name = "vaux1",
+		.vin_name = "vcc4",
 		.n_voltages = ARRAY_SIZE(VAUX1_VSEL_table),
 		.voltage_table = VAUX1_VSEL_table,
 		.enable_time_us = 100,
 	},
 	{
 		.name = "vaux2",
+		.vin_name = "vcc4",
 		.n_voltages = ARRAY_SIZE(VAUX2_VSEL_table),
 		.voltage_table = VAUX2_VSEL_table,
 		.enable_time_us = 100,
 	},
 	{
 		.name = "vaux33",
+		.vin_name = "vcc3",
 		.n_voltages = ARRAY_SIZE(VAUX33_VSEL_table),
 		.voltage_table = VAUX33_VSEL_table,
 		.enable_time_us = 100,
 	},
 	{
 		.name = "vmmc",
+		.vin_name = "vcc3",
 		.n_voltages = ARRAY_SIZE(VMMC_VSEL_table),
 		.voltage_table = VMMC_VSEL_table,
 		.enable_time_us = 100,
@@ -168,21 +181,25 @@ static struct tps_info tps65910_regs[] = {
 static struct tps_info tps65911_regs[] = {
 	{
 		.name = "vrtc",
+		.vin_name = "vcc7",
 		.enable_time_us = 2200,
 	},
 	{
 		.name = "vio",
+		.vin_name = "vccio",
 		.n_voltages = ARRAY_SIZE(VIO_VSEL_table),
 		.voltage_table = VIO_VSEL_table,
 		.enable_time_us = 350,
 	},
 	{
 		.name = "vdd1",
+		.vin_name = "vcc1",
 		.n_voltages = 73,
 		.enable_time_us = 350,
 	},
 	{
 		.name = "vdd2",
+		.vin_name = "vcc2",
 		.n_voltages = 73,
 		.enable_time_us = 350,
 	},
@@ -193,41 +210,49 @@ static struct tps_info tps65911_regs[] = {
 	},
 	{
 		.name = "ldo1",
+		.vin_name = "vcc6",
 		.n_voltages = 47,
 		.enable_time_us = 420,
 	},
 	{
 		.name = "ldo2",
+		.vin_name = "vcc6",
 		.n_voltages = 47,
 		.enable_time_us = 420,
 	},
 	{
 		.name = "ldo3",
+		.vin_name = "vcc5",
 		.n_voltages = 24,
 		.enable_time_us = 230,
 	},
 	{
 		.name = "ldo4",
+		.vin_name = "vcc5",
 		.n_voltages = 47,
 		.enable_time_us = 230,
 	},
 	{
 		.name = "ldo5",
+		.vin_name = "vcc4",
 		.n_voltages = 24,
 		.enable_time_us = 230,
 	},
 	{
 		.name = "ldo6",
+		.vin_name = "vcc3",
 		.n_voltages = 24,
 		.enable_time_us = 230,
 	},
 	{
 		.name = "ldo7",
+		.vin_name = "vcc3",
 		.n_voltages = 24,
 		.enable_time_us = 230,
 	},
 	{
 		.name = "ldo8",
+		.vin_name = "vcc3",
 		.n_voltages = 24,
 		.enable_time_us = 230,
 	},
@@ -1013,6 +1038,9 @@ static struct tps65910_board *tps65910_parse_dt_reg_data(
 	*tps65910_reg_matches = matches;
 
 	for (idx = 0; idx < count; idx++) {
+		struct tps_info *info = matches[idx].driver_data;
+		char in_supply[32]; /* 32 is max size of property name */
+
 		if (!matches[idx].init_data || !matches[idx].of_node)
 			continue;
 
@@ -1023,6 +1051,13 @@ static struct tps65910_board *tps65910_parse_dt_reg_data(
 				"ti,regulator-ext-sleep-control", &prop);
 		if (!ret)
 			pmic_plat_data->regulator_ext_sleep_control[idx] = prop;
+
+		if (info->vin_name) {
+			snprintf(in_supply, 32, "%s-supply", info->vin_name);
+			if (of_find_property(np, in_supply, 0))
+				pmic_plat_data->input_supply[idx] =
+								info->vin_name;
+		}
 	}
 
 	return pmic_plat_data;
@@ -1126,6 +1161,7 @@ static __devinit int tps65910_probe(struct platform_device *pdev)
 		pmic->info[i] = info;
 
 		pmic->desc[i].name = info->name;
+		pmic->desc[i].supply_name = pmic_plat_data->input_supply[i];
 		pmic->desc[i].id = i;
 		pmic->desc[i].n_voltages = info->n_voltages;
 		pmic->desc[i].enable_time = info->enable_time_us;