From 5dcc9e4e521eaa806dcfaa359a29ee7a3ee48dd5 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Fri, 22 Jan 2010 12:59:41 +0100 Subject: gta02: Configure pcf50633-gpio device and add a regulator device which represents the power switch in front of the gsm modem. --- arch/arm/mach-s3c2442/gta02-pm-bt.c | 1 - arch/arm/mach-s3c2442/gta02-pm-gsm.c | 24 +++++++++++--- arch/arm/mach-s3c2442/include/mach/gta02.h | 3 ++ arch/arm/mach-s3c2442/mach-gta02.c | 53 +++++++++++++++++++++++++++++- 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 #include -#include #include 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 #include #include +#include +#include #include #include @@ -26,7 +28,6 @@ #include #include -#include #include #include @@ -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 = >a02_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[] = { + >a02_gsm_supply_device, +}; + +static struct platform_device* gta02_gsm_supply_children[] = { + >a02_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, -- cgit v1.2.3