From: prabhu.annabathula <prabhu.annabathula@motorola.com>
Date: Fri, 18 Jun 2010 22:51:11 +0000 (-0500)
Subject: [ARM] stingray board file: GPS board file changes for brcm 4750
X-Git-Tag: firefly_0821_release~9834^2~827
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e596a08ffb604d8cb31ebeae4df26f042194a891;p=firefly-linux-kernel-4.4.55.git

[ARM] stingray board file: GPS board file changes for brcm 4750

Signed-off-by: prabhu.annabathula <prabhu.annabathula@motorola.com>
---

diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index d0273a0bea3a..38841743bd79 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -63,3 +63,4 @@ obj-${CONFIG_MACH_STINGRAY}             += board-stingray-wlan_nvs.o
 obj-${CONFIG_MACH_STINGRAY}             += board-stingray-touch.o
 obj-${CONFIG_MACH_STINGRAY}             += board-stingray-spi.o
 obj-${CONFIG_MACH_STINGRAY}             += board-stingray-rfkill.o
+obj-${CONFIG_MACH_STINGRAY}             += board-stingray-gps.o
diff --git a/arch/arm/mach-tegra/board-stingray-gps.c b/arch/arm/mach-tegra/board-stingray-gps.c
new file mode 100755
index 000000000000..abad68d8fe16
--- /dev/null
+++ b/arch/arm/mach-tegra/board-stingray-gps.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2010 Motorola, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307, USA
+ */
+
+#include <linux/gpio.h>
+#include <linux/gps-gpio-brcm4750.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include "gpio-names.h"
+
+#define STINGRAY_GPS_RESET	TEGRA_GPIO_PH0
+#define STINGRAY_GPS_STANDBY  TEGRA_GPIO_PH1
+
+static void stingray_gps_reset_gpio(unsigned int gpio_val)
+{
+	pr_info("%s: setting GPS Reset GPIO to %d", __func__, gpio_val);
+	gpio_set_value(STINGRAY_GPS_RESET, gpio_val);
+}
+
+static void stingray_gps_standby_gpio(unsigned int gpio_val)
+{
+	pr_info("%s: setting GPS standby GPIO to %d", __func__, gpio_val);
+	gpio_set_value(STINGRAY_GPS_STANDBY, gpio_val);
+}
+
+static void stingray_gps_gpio_release(void)
+{
+	gpio_free(STINGRAY_GPS_RESET);
+	gpio_free(STINGRAY_GPS_STANDBY);
+}
+
+static void stingray_gps_gpio_init(void)
+{
+	tegra_gpio_enable(STINGRAY_GPS_RESET);
+	gpio_request(STINGRAY_GPS_RESET, "gps_rst");
+	gpio_direction_output(STINGRAY_GPS_RESET, 0);
+
+	tegra_gpio_enable(STINGRAY_GPS_STANDBY);
+	gpio_request(STINGRAY_GPS_STANDBY, "gps_stdby");
+	gpio_direction_output(STINGRAY_GPS_STANDBY, 0);
+}
+
+struct gps_gpio_brcm4750_platform_data stingray_gps_gpio_data = {
+	.set_reset_gpio = stingray_gps_reset_gpio,
+	.set_standby_gpio = stingray_gps_standby_gpio,
+	.free_gpio = stingray_gps_gpio_release,
+};
+
+static struct platform_device stingray_gps_device = {
+	.name	= GPS_GPIO_DRIVER_NAME,
+	.id		= -1,
+	.dev	= {
+	.platform_data = &stingray_gps_gpio_data,
+	},
+};
+
+void __init stingray_gps_init(void)
+{
+	stingray_gps_gpio_init();
+	platform_device_register(&stingray_gps_device);
+}
diff --git a/arch/arm/mach-tegra/board-stingray-spi.c b/arch/arm/mach-tegra/board-stingray-spi.c
index ab3974c344aa..3f4acc6aa984 100644
--- a/arch/arm/mach-tegra/board-stingray-spi.c
+++ b/arch/arm/mach-tegra/board-stingray-spi.c
@@ -365,6 +365,9 @@ struct regulator_consumer_supply cpcap_vaudio_consumers[] = {
 	REGULATOR_CONSUMER("vaudio", NULL /* mic opamp */),
 };
 
+struct regulator_consumer_supply cpcap_vdig_consumers[] = {
+	REGULATOR_CONSUMER("vdig", NULL /* gps */),
+};
 static struct regulator_init_data cpcap_regulator[CPCAP_NUM_REGULATORS] = {
 	[CPCAP_SW2] = {
 		.constraints = {
@@ -428,10 +431,14 @@ static struct regulator_init_data cpcap_regulator[CPCAP_NUM_REGULATORS] = {
 	},
 	[CPCAP_VDIG] = {
 		.constraints = {
-			.min_uV			= 1200000,
+			.min_uV			= 1875000,
 			.max_uV			= 1875000,
 			.valid_ops_mask		= 0,
+			.always_on		= 1,
+			.apply_uV		= 1,
 		},
+		.num_consumer_supplies	= ARRAY_SIZE(cpcap_vdig_consumers),
+		.consumer_supplies	= cpcap_vdig_consumers,
 	},
 	[CPCAP_VFUSE] = {
 		.constraints = {
diff --git a/arch/arm/mach-tegra/board-stingray.c b/arch/arm/mach-tegra/board-stingray.c
index 3483faa74aa8..ed68cf00846a 100644
--- a/arch/arm/mach-tegra/board-stingray.c
+++ b/arch/arm/mach-tegra/board-stingray.c
@@ -552,6 +552,7 @@ static void __init tegra_stingray_init(void)
 	stingray_w1_init();
 	stingray_sensors_init();
 	stingray_wlan_init();
+	stingray_gps_init();
 }
 
 MACHINE_START(STINGRAY, "stingray")
diff --git a/arch/arm/mach-tegra/board-stingray.h b/arch/arm/mach-tegra/board-stingray.h
index 544a9a3bf703..666bf71e9afe 100644
--- a/arch/arm/mach-tegra/board-stingray.h
+++ b/arch/arm/mach-tegra/board-stingray.h
@@ -25,6 +25,7 @@ int stingray_sensors_init(void);
 int stingray_touch_init(void);
 int stingray_spi_init(void);
 int stingray_revision(void);
+void stingray_gps_init(void);
 
 enum {
 	STINGRAY_REVISION_UNKNOWN,