[UPSTREAM PATCH] pm_gps_use_regulator_api.patch

[Balaji Rao]

Change the pm_gps driver to use the regulator API.
---

 arch/arm/mach-s3c2440/mach-gta02.c     |   17 +++++++++++++++++
 arch/arm/plat-s3c24xx/neo1973_pm_gps.c |   23 ++++++++++++-----------
 2 files changed, 29 insertions(+), 11 deletions(-)

diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
index 3143d51..c95a314 100644
--- a/arch/arm/mach-s3c2440/mach-gta02.c
+++ b/arch/arm/mach-s3c2440/mach-gta02.c
@@ -568,6 +568,13 @@ static struct regulator_consumer_supply ldo4_consumers[] = {
 	},
 };
 
+static struct regulator_consumer_supply ldo5_consumers[] = {
+	{
+		.dev = &gta01_pm_bt_dev.dev,
+		.supply = "RF_3V",
+	},
+};
+
 /*
  * We need this dummy thing to fill the regulator consumers
  */
@@ -710,6 +717,16 @@ struct pcf50633_platform_data gta02_pcf_pdata = {
 			.num_consumer_supplies = 1,
 			.consumer_supplies = ldo4_consumers,
 		},
+		[PCF50633_REGULATOR_LDO5] = {
+			.constraints = {
+				.min_uV = 3000000,
+				.max_uV = 3000000,
+				.valid_modes_mask = REGULATOR_MODE_NORMAL,
+				.apply_uV = 1,
+			},
+			.num_consumer_supplies = 1,
+			.consumer_supplies = ldo5_consumers,
+		},
 		[PCF50633_REGULATOR_HCLDO] = {
 			.constraints = {
 				.min_uV = 2000000,
diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_gps.c b/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
index a3a6ad3..8f0a629 100644
--- a/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
+++ b/arch/arm/plat-s3c24xx/neo1973_pm_gps.c
@@ -31,8 +31,11 @@
 #include <mach/gta02.h>
 #include <linux/pcf50633.h>
 
+#include <linux/regulator/consumer.h>
+
 struct neo1973_pm_gps_data {
 	int power_was_on;
+	struct regulator *regulator;
 };
 
 static struct neo1973_pm_gps_data neo1973_gps;
@@ -280,8 +283,6 @@ static void gps_pwron_set(int on)
 
 	if (machine_is_neo1973_gta02()) {
 		if (on) {
-			pcf50633_voltage_set(gta02_pcf_pdata.pcf,
-				PCF50633_REGULATOR_LDO5, 3000);
 			/* return UART pins to being UART pins */
 			s3c2410_gpio_cfgpin(S3C2410_GPH4, S3C2410_GPH4_TXD1);
 			/* remove pulldown now it won't be floating any more */
@@ -296,8 +297,11 @@ static void gps_pwron_set(int on)
 			/* don't let RX from unpowered GPS float */
 			s3c2410_gpio_pullup(S3C2410_GPH5, 1);
 		}
-		pcf50633_onoff_set(gta02_pcf_pdata.pcf,
-			PCF50633_REGULATOR_LDO5, on);
+		if ((on) && (!neo1973_gps.power_was_on))
+			regulator_enable(neo1973_gps.regulator);
+
+		if ((!on) && (neo1973_gps.power_was_on))
+			regulator_disable(neo1973_gps.regulator);
 	}
 }
 
@@ -307,8 +311,7 @@ static int gps_pwron_get(void)
 		return !!s3c2410_gpio_getpin(GTA01_GPIO_GPS_PWRON);
 
 	if (machine_is_neo1973_gta02())
-		return !!pcf50633_onoff_get(gta02_pcf_pdata.pcf,
-						       PCF50633_REGULATOR_LDO5);
+		return regulator_is_enabled(neo1973_gps.regulator);
 	return -1;
 }
 
@@ -630,10 +633,8 @@ static int __init gta01_pm_gps_probe(struct platform_device *pdev)
 		case GTA02v4_SYSTEM_REV:
 		case GTA02v5_SYSTEM_REV:
 		case GTA02v6_SYSTEM_REV:
-			pcf50633_voltage_set(gta02_pcf_pdata.pcf,
-				PCF50633_REGULATOR_LDO5, 3000);
-			pcf50633_onoff_set(gta02_pcf_pdata.pcf,
-				PCF50633_REGULATOR_LDO5, 0);
+			neo1973_gps.regulator = regulator_get(
+							&pdev->dev, "RF_3V");
 			dev_info(&pdev->dev, "FIC Neo1973 GPS Power Managerment:"
 				 "starting\n");
 			break;
@@ -659,7 +660,7 @@ static int gta01_pm_gps_remove(struct platform_device *pdev)
 	}
 
 	if (machine_is_neo1973_gta02()) {
-		pcf50633_onoff_set(gta02_pcf_pdata.pcf, PCF50633_REGULATOR_LDO5, 0);
+		regulator_put(neo1973_gps.regulator);
 		sysfs_remove_group(&pdev->dev.kobj, &gta02_gps_attr_group);
 	}
 	return 0;