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authorLars-Peter Clausen <lars@metafoo.de>2010-01-22 12:59:41 +0100
committerLars-Peter Clausen <lars@metafoo.de>2010-01-22 13:34:11 +0100
commit5dcc9e4e521eaa806dcfaa359a29ee7a3ee48dd5 (patch)
treee6277f7b0c26bf6a412101ba8109b062dd434613 /arch
parent67b7a1c5e40b7c4a398e8023a49c0688c1a0eb23 (diff)
gta02: Configure pcf50633-gpio device and add a regulator device which
represents the power switch in front of the gsm modem.
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-s3c2442/gta02-pm-bt.c1
-rw-r--r--arch/arm/mach-s3c2442/gta02-pm-gsm.c24
-rw-r--r--arch/arm/mach-s3c2442/include/mach/gta02.h3
-rw-r--r--arch/arm/mach-s3c2442/mach-gta02.c53
4 files changed, 75 insertions, 6 deletions
diff --git a/arch/arm/mach-s3c2442/gta02-pm-bt.c b/arch/arm/mach-s3c2442/gta02-pm-bt.c
index 76671ce96d0..8bb2a12f7c5 100644
--- a/arch/arm/mach-s3c2442/gta02-pm-bt.c
+++ b/arch/arm/mach-s3c2442/gta02-pm-bt.c
@@ -23,7 +23,6 @@
#include <asm/mach-types.h>
#include <mach/gta02.h>
-#include <linux/mfd/pcf50633/gpio.h>
#include <linux/regulator/consumer.h>
diff --git a/arch/arm/mach-s3c2442/gta02-pm-gsm.c b/arch/arm/mach-s3c2442/gta02-pm-gsm.c
index 4b6cad806fe..70a94cb3f24 100644
--- a/arch/arm/mach-s3c2442/gta02-pm-gsm.c
+++ b/arch/arm/mach-s3c2442/gta02-pm-gsm.c
@@ -19,6 +19,8 @@
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/regulator/consumer.h>
#include <mach/gpio.h>
#include <asm/mach-types.h>
@@ -26,7 +28,6 @@
#include <mach/hardware.h>
#include <mach/gta02.h>
-#include <linux/mfd/pcf50633/gpio.h>
#include <mach/regs-gpio.h>
#include <mach/regs-gpioj.h>
@@ -38,6 +39,7 @@ extern void s3c24xx_serial_console_set_silence(int);
struct gta02pm_priv {
int gpio_ndl_gsm;
struct console *con;
+ struct regulator *regulator;
};
static struct gta02pm_priv gta02_gsm;
@@ -62,7 +64,7 @@ static ssize_t gsm_read(struct device *dev, struct device_attribute *attr,
char *buf)
{
if (!strcmp(attr->attr.name, "power_on")) {
- if (pcf50633_gpio_get(gta02_pcf, PCF50633_GPIO2))
+ if (regulator_is_enabled(gta02_gsm.regulator))
goto out_1;
} else if (!strcmp(attr->attr.name, "download")) {
if (!s3c2410_gpio_getpin(GTA02_GPIO_nDL_GSM))
@@ -79,11 +81,17 @@ out_1:
static void gsm_on_off(struct device *dev, int on)
{
+
+ on = !!on;
+
+ if (on == regulator_is_enabled(gta02_gsm.regulator))
+ return;
+
if (!on) {
s3c2410_gpio_cfgpin(S3C2410_GPH(1), S3C2410_GPIO_INPUT);
s3c2410_gpio_cfgpin(S3C2410_GPH(2), S3C2410_GPIO_INPUT);
- pcf50633_gpio_set(gta02_pcf, PCF50633_GPIO2, 0);
+ regulator_disable(gta02_gsm.regulator);
if (gta02_gsm.con) {
s3c24xx_serial_console_set_silence(0);
@@ -108,7 +116,7 @@ static void gsm_on_off(struct device *dev, int on)
s3c2410_gpio_cfgpin(S3C2410_GPH(1), S3C2410_GPH1_nRTS0);
s3c2410_gpio_cfgpin(S3C2410_GPH(2), S3C2410_GPH2_TXD0);
- pcf50633_gpio_set(gta02_pcf, PCF50633_GPIO2, 7);
+ regulator_enable(gta02_gsm.regulator);
msleep(100);
@@ -264,6 +272,14 @@ static int __init gta02_gsm_probe(struct platform_device *pdev)
gta02_gsm.gpio_ndl_gsm = 1;
s3c2410_gpio_setpin(GTA02_GPIO_nDL_GSM, 1);
+ gta02_gsm.regulator = regulator_get_exclusive(&pdev->dev, "GSM");
+
+ if (IS_ERR(gta02_gsm.regulator)) {
+ dev_err(&pdev->dev, "Failed to get regulator: %d\n",
+ PTR_ERR(gta02_gsm.regulator));
+ return PTR_ERR(gta02_gsm.regulator);
+ }
+
/* GSM is to be initially off (at boot, or if this module inserted) */
gsm_on_off(&pdev->dev, 0);
diff --git a/arch/arm/mach-s3c2442/include/mach/gta02.h b/arch/arm/mach-s3c2442/include/mach/gta02.h
index b67e5ec2919..6db48d4ff61 100644
--- a/arch/arm/mach-s3c2442/include/mach/gta02.h
+++ b/arch/arm/mach-s3c2442/include/mach/gta02.h
@@ -83,6 +83,9 @@
#define GTA02_GPIO_GLAMO_BASE S3C_GPIO_END
#define GTA02_GPIO_GLAMO(x) (GTA02_GPIO_GLAMO_BASE + (x))
+#define GTA02_GPIO_PCF_BASE (GTA02_GPIO_GLAMO_BASE + 32)
+#define GTA02_GPIO_PCF(x) (GTA02_GPIO_PCF_BASE + (x))
+
int gta02_get_pcb_revision(void);
extern struct pcf50633 *gta02_pcf;
diff --git a/arch/arm/mach-s3c2442/mach-gta02.c b/arch/arm/mach-s3c2442/mach-gta02.c
index 3d566f54ef4..302a5f0cc59 100644
--- a/arch/arm/mach-s3c2442/mach-gta02.c
+++ b/arch/arm/mach-s3c2442/mach-gta02.c
@@ -307,6 +307,39 @@ static struct platform_device gta02_pm_wlan_dev = {
.name = "gta02-pm-wlan",
};
+static struct regulator_consumer_supply gsm_supply_consumer = {
+ .dev = &gta02_pm_gsm_dev.dev,
+ .supply = "GSM",
+};
+
+static struct regulator_init_data gsm_supply_init_data = {
+ .constraints = {
+ .min_uV = 3700000,
+ .max_uV = 3700000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .valid_ops_mask = REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = 1,
+ .consumer_supplies = &gsm_supply_consumer,
+};
+
+static struct fixed_voltage_config gsm_supply_config = {
+ .supply_name = "GSM",
+ .microvolts = 3700000,
+ .gpio = GTA02_GPIO_PCF(PCF50633_GPIO2),
+ .enable_high = 1,
+ .init_data = &gsm_supply_init_data,
+};
+
+static struct platform_device gta02_gsm_supply_device = {
+ .name = "reg-fixed-voltage",
+ .id = 1,
+ .dev = {
+ .platform_data = &gsm_supply_config,
+ },
+};
+
+
#ifdef CONFIG_CHARGER_PCF50633
/*
* On GTA02 the 1A charger features a 48K resistor to 0V on the ID pin.
@@ -345,7 +378,7 @@ gta02_configure_pmu_for_charger(struct pcf50633 *pcf, void *unused, int res)
* Sanity - stop GPO driving out now that we have a 1A charger
* GPO controls USB Host power generation on GTA02
*/
- pcf50633_gpio_set(pcf, PCF50633_GPO, 0);
+ /*pcf50633_gpio_set(pcf, PCF50633_GPO, 0);*/
ma = 1000;
} else
@@ -1126,6 +1159,14 @@ static struct platform_device* gta02_glamo_gpio_children[] = {
&spigpio_device,
};
+static struct platform_device* gta02_pcf50633_gpio_children[] = {
+ &gta02_gsm_supply_device,
+};
+
+static struct platform_device* gta02_gsm_supply_children[] = {
+ &gta02_pm_gsm_dev,
+};
+
static struct platform_device* gta02_hdq_children[] = {
&bq27000_battery_device,
};
@@ -1145,6 +1186,16 @@ static struct gta02_device_children gta02_device_children[] = {
.dev_name = "spi2.0",
.probed_callback = gta02_jbt6k74_probe_completed,
},
+ {
+ .dev_name = "pcf50633-gpio",
+ .num_children = 1,
+ .children = gta02_pcf50633_gpio_children,
+ },
+ {
+ .dev_name = "reg-fixed-voltage.1",
+ .num_children = 1,
+ .children = gta02_gsm_supply_children,
+ }
};
static int gta02_add_child_devices(struct device *parent,