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hello list,
gta01-pm-gps is not working under GTA02, and kernel dumps the following
messages:
gta01-pm-gps.0: Unknown GTA01 Revision 0x320, GPS PM features not
available!!!
gta01-pm-gps: probe of gta01-pm-gps.0 failed with error -1
This patch creates a working GPS PM driver reflecting the changes in PMU
pcf50633 controls.
Thanks,
- -jserv
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AGPS power management for GTA02.
---
arch/arm/common/Makefile | 1
arch/arm/common/gta02_pm_gps.c | 140 +++++++++++++++++++++++++++++++++++++
arch/arm/mach-s3c2440/mach-gta02.c | 6 +
drivers/i2c/chips/pcf50633.c | 22 +++++
include/linux/pcf50633.h | 6 +
5 files changed, 175 insertions(+)
Index: linux-2.6.22.5/arch/arm/common/Makefile
===================================================================
--- linux-2.6.22.5.orig/arch/arm/common/Makefile 2007-10-08 23:04:05.000000000 +0800
+++ linux-2.6.22.5/arch/arm/common/Makefile 2007-10-09 13:25:43.000000000 +0800
@@ -18,3 +18,4 @@
obj-$(CONFIG_ARCH_IXP2000) += uengine.o
obj-$(CONFIG_ARCH_IXP23XX) += uengine.o
obj-$(CONFIG_MACH_NEO1973_GTA01)+= gta01_pm_gsm.o gta01_pm_gps.o gta01_pm_bt.o
+obj-$(CONFIG_MACH_NEO1973_GTA02)+= gta02_pm_gps.o
Index: linux-2.6.22.5/arch/arm/common/gta02_pm_gps.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.22.5/arch/arm/common/gta02_pm_gps.c 2007-10-09 13:36:10.000000000 +0800
@@ -0,0 +1,140 @@
+/*
+ * GSM Management code for the FIC Neo1973 GSM Phone
+ *
+ * (C) 2007 by OpenMoko Inc.
+ * Author: Harald Welte <[EMAIL PROTECTED]>
+ * Modified by Sweden Hsu <[EMAIL PROTECTED]>
+ * All rights reserved.
+ *
+ * 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
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/console.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <linux/pcf50633.h>
+#include <asm/arch/gta01.h>
+#include <asm/arch/gta02.h>
+
+static int gps_state = 0;
+
+static ssize_t gps_read(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ unsigned int vol;
+ vol = pcf50633_voltage_get(pcf50633_global, PCF50633_REGULATOR_LDO5);
+ dev_info (dev, "Get PCF50633 LDO5 = %d",vol);
+
+ return sprintf(buf, "%d LDO5=%d\n", gps_state, vol);
+}
+
+static ssize_t gps_write(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long on = simple_strtoul(buf, NULL, 10);
+
+ if (!strcmp(attr->attr.name, "power_on")) {
+ if (on) {
+ dev_info(dev, "powering up AGPS");
+
+ pcf50633_voltage_set(pcf50633_global, PCF50633_REGULATOR_LDO5, 3000);
+ pcf50633_ldo5ena_set(pcf50633_global, 0x01);
+ gps_state = 1;
+ } else {
+
+ pcf50633_voltage_set(pcf50633_global, PCF50633_REGULATOR_LDO5, 0);
+ pcf50633_ldo5ena_set(pcf50633_global, 0x00);
+ gps_state = 0;
+ dev_info(dev, "powered down AGPS");
+ }
+ }
+ return count;
+}
+
+static DEVICE_ATTR(power_on, 0644, gps_read, gps_write);
+
+#ifdef CONFIG_PM
+static int gta02_gps_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ /* GPIO state is saved/restored by S3C24xx core GPIO driver, so we
+ * don't need to do anything here */
+ return 0;
+}
+
+static int gta02_gps_resume(struct platform_device *pdev)
+{
+ /* GPIO state is saved/restored by S3C24xx core GPIO driver, so we
+ * don't need to do anything here */
+
+ /* Make sure that the kernel console on the serial port is still
+ * disabled. FIXME: resume ordering race with serial driver! */
+ return 0;
+}
+#else
+#define gta02_gps_suspend NULL
+#define gta02_gps_resume NULL
+#endif
+
+static struct attribute *gta02_gps_sysfs_entries[] = {
+ &dev_attr_power_on.attr,
+ NULL,
+ NULL
+};
+
+static struct attribute_group gta02_gps_attr_group = {
+ .name = NULL,
+ .attrs = gta02_gps_sysfs_entries,
+};
+
+static int __init gta02_gps_probe(struct platform_device *pdev)
+{
+ switch (system_rev) {
+ case GTA02v2_SYSTEM_REV:
+ return sysfs_create_group(&pdev->dev.kobj, >a02_gps_attr_group);
+ default:
+ return -1;
+ }
+}
+
+static int gta02_gps_remove(struct platform_device *pdev)
+{
+ sysfs_remove_group(&pdev->dev.kobj, >a02_gps_attr_group);
+
+ return 0;
+}
+
+static struct platform_driver gta02_gps_driver = {
+ .probe = gta02_gps_probe,
+ .remove = gta02_gps_remove,
+ .suspend = gta02_gps_suspend,
+ .resume = gta02_gps_resume,
+ .driver = {
+ .name = "gta02-pm-gps",
+ },
+};
+
+static int __devinit gta02_gps_init(void)
+{
+ return platform_driver_register(>a02_gps_driver);
+}
+
+static void gta02_gps_exit(void)
+{
+ platform_driver_unregister(>a02_gps_driver);
+}
+
+module_init(gta02_gps_init);
+module_exit(gta02_gps_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("FIC GTA02 (Neo1973) GPS Management");
Index: linux-2.6.22.5/arch/arm/mach-s3c2440/mach-gta02.c
===================================================================
--- linux-2.6.22.5.orig/arch/arm/mach-s3c2440/mach-gta02.c 2007-10-08 23:04:06.000000000 +0800
+++ linux-2.6.22.5/arch/arm/mach-s3c2440/mach-gta02.c 2007-10-09 13:29:58.000000000 +0800
@@ -579,6 +579,10 @@
.name = "gta01-pm-gsm",
};
+static struct platform_device gta02_pm_gps_dev = {
+ .name = "gta02-pm-gps",
+};
+
/* USB */
static struct s3c2410_hcd_info gta02_usb_info = {
.port[0] = {
@@ -678,6 +682,8 @@
platform_device_register(>a01_button_dev);
platform_device_register(>a01_pm_gsm_dev);
+ platform_device_register(>a02_pm_gps_dev);
+
mangle_pmu_pdata_by_system_rev();
platform_device_register(>a02_pmu_dev);
platform_device_register(>a02_led_dev);
Index: linux-2.6.22.5/drivers/i2c/chips/pcf50633.c
===================================================================
--- linux-2.6.22.5.orig/drivers/i2c/chips/pcf50633.c 2007-10-08 23:04:06.000000000 +0800
+++ linux-2.6.22.5/drivers/i2c/chips/pcf50633.c 2007-10-09 13:34:13.000000000 +0800
@@ -450,6 +450,28 @@
}
EXPORT_SYMBOL(pcf50633_go_standby);
+void pcf50633_gpio2_output_set(struct pcf50633_data*pcf,int on)
+{
+ u_int8_t val;
+
+ /* Set GPIO2 output */
+ reg_set_bit_mask(pcf, PCF50633_REG_GPIOCTL, 0x02, 0);
+
+ if (on)
+ val = PCF50633_GPOCFG_GPOSEL_1;
+ else
+ val = PCF50633_GPOCFG_GPOSEL_0;
+
+ reg_set_bit_mask(pcf, PCF50633_REG_GPIO2CFG, 0x0f, val);
+}
+EXPORT_SYMBOL(pcf50633_gpio2_output_set);
+
+void pcf50633_ldo5ena_set(struct pcf50633_data*pcf, u_int8_t val)
+{
+ reg_write(pcf,PCF50633_REG_LDO5ENA, val);
+}
+EXPORT_SYMBOL(pcf50633_ldo5ena_set);
+
void pcf50633_gpo0_set(struct pcf50633_data *pcf, int on)
{
u_int8_t val;
Index: linux-2.6.22.5/include/linux/pcf50633.h
===================================================================
--- linux-2.6.22.5.orig/include/linux/pcf50633.h 2007-10-08 23:04:06.000000000 +0800
+++ linux-2.6.22.5/include/linux/pcf50633.h 2007-10-09 13:24:55.000000000 +0800
@@ -24,6 +24,12 @@
pcf50633_go_standby(void);
extern void
+pcf50633_gpio2_output_set(struct pcf50633_data *pcf, int on);
+
+extern void
+pcf50633_ldo5ena_set(struct pcf50633_data*pcf, u_int8_t val);
+
+extern void
pcf50633_gpo0_set(struct pcf50633_data *pcf, int on);
extern int
