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openwrt/target/linux/s3c24xx/patches-2.6.24/1161-add-resume-reason-sysfs.patch.patch

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From 595053e2185b896afe50af6bb48c082e3adcdd31 Mon Sep 17 00:00:00 2001
From: Andy Green <andy@openmoko.com>
Date: Mon, 26 May 2008 12:39:29 +0100
Subject: [PATCH] add-resume-reason-sysfs.patch
If you have U-Boot with uboot-add-find-wake-reason.patch, this
patch will get you a wake reason report from
cat /sys/devices/platform/neo1973-resume.0/resume_reason
it looks like this:
EINT00_ACCEL1
EINT01_GSM
EINT02_BLUETOOTH
EINT03_DEBUGBRD
EINT04_JACK
EINT05_WLAN
EINT06_AUXKEY
EINT07_HOLDKEY
EINT08_ACCEL2
* EINT09_PMU
adpins
adprem
usbins
usbrem
rtcalarm
second
onkeyr
onkeyf
exton1r
exton1f
exton2r
exton2f
exton3r
exton3f
* batfull
chghalt
thlimon
thlimoff
usblimon
usblimoff
adcrdy
onkey1s
lowsys
lowbat
hightmp
autopwrfail
dwn1pwrfail
dwn2pwrfail
ledpwrfail
ledovp
ldo1pwrfail
ldo2pwrfail
ldo3pwrfail
ldo4pwrfail
ldo5pwrfail
ldo6pwrfail
hcidopwrfail
hcidoovl
EINT10_NULL
EINT11_NULL
EINT12_GLAMO
EINT13_NULL
EINT14_NULL
EINT15_NULL
This shows a problem, false wake from suspend due to battery full
Signed-off-by: Andy Green <andy@openmoko.com>
---
arch/arm/mach-s3c2440/mach-gta02.c | 5 +
arch/arm/plat-s3c24xx/Makefile | 4 +-
arch/arm/plat-s3c24xx/neo1973_pm_resume_reason.c | 134 ++++++++++++++++++++++
drivers/i2c/chips/pcf50633.c | 80 +++++++++++++
include/linux/pcf50633.h | 4 +
5 files changed, 225 insertions(+), 2 deletions(-)
create mode 100644 arch/arm/plat-s3c24xx/neo1973_pm_resume_reason.c
diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
index 9e8fae7..90b62c1 100644
--- a/arch/arm/mach-s3c2440/mach-gta02.c
+++ b/arch/arm/mach-s3c2440/mach-gta02.c
@@ -378,6 +378,10 @@ struct platform_device gta02_version_device = {
.num_resources = 0,
};
+struct platform_device gta02_resume_reason_device = {
+ .name = "neo1973-resume",
+ .num_resources = 0,
+};
static struct map_desc gta02_iodesc[] __initdata = {
{
@@ -737,6 +741,7 @@ static struct platform_device *gta02_devices[] __initdata = {
&gta02_nor_flash,
&sc32440_fiq_device,
&gta02_version_device,
+ &gta02_resume_reason_device,
&s3c24xx_pwm_device,
};
diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile
index 0efcc15..21f5159 100644
--- a/arch/arm/plat-s3c24xx/Makefile
+++ b/arch/arm/plat-s3c24xx/Makefile
@@ -33,5 +33,5 @@ obj-$(CONFIG_MACH_NEO1973) += neo1973_version.o \
neo1973_pm_gsm.o \
neo1973_pm_gps.o \
neo1973_pm_bt.o \
- neo1973_shadow.o
-
+ neo1973_shadow.o \
+ neo1973_pm_resume_reason.o
diff --git a/arch/arm/plat-s3c24xx/neo1973_pm_resume_reason.c b/arch/arm/plat-s3c24xx/neo1973_pm_resume_reason.c
new file mode 100644
index 0000000..cca42dc
--- /dev/null
+++ b/arch/arm/plat-s3c24xx/neo1973_pm_resume_reason.c
@@ -0,0 +1,134 @@
+/*
+ * Resume reason sysfs for the FIC Neo1973 GSM Phone
+ *
+ * (C) 2008 by Openmoko Inc.
+ * Author: Andy Green <andy@openmoko.com>
+ * 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 resume_reason 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/io.h>
+
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+
+#ifdef CONFIG_MACH_NEO1973_GTA02
+#include <asm/arch/gta02.h>
+#include <linux/pcf50633.h>
+
+
+static unsigned int *gstatus4_mapped;
+static char *resume_reasons[] = {
+ "EINT00_ACCEL1",
+ "EINT01_GSM",
+ "EINT02_BLUETOOTH",
+ "EINT03_DEBUGBRD",
+ "EINT04_JACK",
+ "EINT05_WLAN",
+ "EINT06_AUXKEY",
+ "EINT07_HOLDKEY",
+ "EINT08_ACCEL2",
+ "EINT09_PMU",
+ "EINT10_NULL",
+ "EINT11_NULL",
+ "EINT12_GLAMO",
+ "EINT13_NULL",
+ "EINT14_NULL",
+ "EINT15_NULL",
+ NULL
+};
+
+static ssize_t resume_reason_read(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ int bit = 0;
+ char *end = buf;
+
+ for (bit = 0; resume_reasons[bit]; bit++) {
+ if ((*gstatus4_mapped) & (1 << bit))
+ end += sprintf(end, "* %s\n", resume_reasons[bit]);
+ else
+ end += sprintf(end, " %s\n", resume_reasons[bit]);
+
+ if (bit == 9) /* PMU */
+ end += pcf50633_report_resumers(pcf50633_global, end);
+ }
+
+ return end - buf;
+}
+
+
+static DEVICE_ATTR(resume_reason, 0644, resume_reason_read, NULL);
+
+static struct attribute *neo1973_resume_reason_sysfs_entries[] = {
+ &dev_attr_resume_reason.attr,
+ NULL
+};
+
+static struct attribute_group neo1973_resume_reason_attr_group = {
+ .name = NULL,
+ .attrs = neo1973_resume_reason_sysfs_entries,
+};
+
+static int __init neo1973_resume_reason_probe(struct platform_device *pdev)
+{
+ dev_info(&pdev->dev, "starting\n");
+
+ switch (machine_arch_type) {
+#ifdef CONFIG_MACH_NEO1973_GTA01
+ case MACH_TYPE_NEO1973_GTA01:
+ return -EINVAL;
+#endif /* CONFIG_MACH_NEO1973_GTA01 */
+ default:
+ gstatus4_mapped = ioremap(0x560000BC, 0x4);
+ if (!gstatus4_mapped) {
+ dev_err(&pdev->dev, "failed to ioremap() memory region\n");
+ return -EINVAL;
+ }
+ break;
+ }
+
+ return sysfs_create_group(&pdev->dev.kobj, &neo1973_resume_reason_attr_group);
+}
+
+static int neo1973_resume_reason_remove(struct platform_device *pdev)
+{
+ sysfs_remove_group(&pdev->dev.kobj, &neo1973_resume_reason_attr_group);
+ iounmap(gstatus4_mapped);
+ return 0;
+}
+
+static struct platform_driver neo1973_resume_reason_driver = {
+ .probe = neo1973_resume_reason_probe,
+ .remove = neo1973_resume_reason_remove,
+ .driver = {
+ .name = "neo1973-resume",
+ },
+};
+
+static int __devinit neo1973_resume_reason_init(void)
+{
+ return platform_driver_register(&neo1973_resume_reason_driver);
+}
+
+static void neo1973_resume_reason_exit(void)
+{
+ platform_driver_unregister(&neo1973_resume_reason_driver);
+}
+
+module_init(neo1973_resume_reason_init);
+module_exit(neo1973_resume_reason_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Andy Green <andy@openmoko.com>");
+MODULE_DESCRIPTION("Neo1973 resume_reason");
+#endif
diff --git a/drivers/i2c/chips/pcf50633.c b/drivers/i2c/chips/pcf50633.c
index e3f0271..6d07aa5 100644
--- a/drivers/i2c/chips/pcf50633.c
+++ b/drivers/i2c/chips/pcf50633.c
@@ -120,6 +120,8 @@ struct pcf50633_data {
int allow_close;
int onkey_seconds;
int irq;
+ int have_been_suspended;
+ unsigned char pcfirq_resume[5];
int coldplug_done; /* cleared by probe, set by first work service */
int flag_bat_voltage_read; /* ipc to /sys batt voltage read func */
@@ -597,6 +599,17 @@ static void pcf50633_work(struct work_struct *work)
return;
}
+ /* hey did we just resume? */
+
+ if (pcf->have_been_suspended) {
+ pcf->have_been_suspended = 0;
+ /*
+ * grab a copy of resume interrupt reasons
+ * from pcf50633 POV
+ */
+ memcpy(pcf->pcfirq_resume, pcfirq, sizeof(pcf->pcfirq_resume));
+ }
+
if (!pcf->coldplug_done) {
DEBUGP("PMU Coldplug init\n");
@@ -1866,6 +1879,71 @@ static int pcf50633_detach_client(struct i2c_client *client)
return 0;
}
+/* you're going to need >300 bytes in buf */
+
+int pcf50633_report_resumers(struct pcf50633_data *pcf, char *buf)
+{
+ static char *int_names[] = {
+ "adpins",
+ "adprem",
+ "usbins",
+ "usbrem",
+ NULL,
+ NULL,
+ "rtcalarm",
+ "second",
+
+ "onkeyr",
+ "onkeyf",
+ "exton1r",
+ "exton1f",
+ "exton2r",
+ "exton2f",
+ "exton3r",
+ "exton3f",
+
+ "batfull",
+ "chghalt",
+ "thlimon",
+ "thlimoff",
+ "usblimon",
+ "usblimoff",
+ "adcrdy",
+ "onkey1s",
+
+ "lowsys",
+ "lowbat",
+ "hightmp",
+ "autopwrfail",
+ "dwn1pwrfail",
+ "dwn2pwrfail",
+ "ledpwrfail",
+ "ledovp",
+
+ "ldo1pwrfail",
+ "ldo2pwrfail",
+ "ldo3pwrfail",
+ "ldo4pwrfail",
+ "ldo5pwrfail",
+ "ldo6pwrfail",
+ "hcidopwrfail",
+ "hcidoovl"
+ };
+ char *end = buf;
+ int n;
+
+ for (n = 0; n < 40; n++)
+ if (int_names[n]) {
+ if (pcf->pcfirq_resume[n >> 3] & (1 >> (n & 7)))
+ end += sprintf(end, " * %s\n", int_names[n]);
+ else
+ end += sprintf(end, " %s\n", int_names[n]);
+ }
+
+ return end - buf;
+}
+
+
#ifdef CONFIG_PM
#define INT1M_RESUMERS (PCF50633_INT1_ADPINS | \
PCF50633_INT1_ADPREM | \
@@ -1948,6 +2026,8 @@ static int pcf50633_suspend(struct device *dev, pm_message_t state)
__reg_write(pcf, PCF50633_REG_INT4M, ~INT4M_RESUMERS & 0xff);
__reg_write(pcf, PCF50633_REG_INT5M, ~INT5M_RESUMERS & 0xff);
+ pcf->have_been_suspended = 1;
+
mutex_unlock(&pcf->lock);
return 0;
diff --git a/include/linux/pcf50633.h b/include/linux/pcf50633.h
index 05b55f3..be3957f 100644
--- a/include/linux/pcf50633.h
+++ b/include/linux/pcf50633.h
@@ -67,6 +67,10 @@ pcf50633_backlight_resume(struct pcf50633_data *pcf);
extern u_int16_t
pcf50633_battvolt(struct pcf50633_data *pcf);
+extern int
+pcf50633_report_resumers(struct pcf50633_data *pcf, char *buf);
+
+
#define PCF50633_FEAT_EXTON 0x00000001 /* not yet supported */
#define PCF50633_FEAT_MBC 0x00000002
#define PCF50633_FEAT_BBC 0x00000004 /* not yet supported */
--
1.5.6.5
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