mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-21 22:47:56 +00:00
221 lines
6.9 KiB
Diff
Executable File
221 lines
6.9 KiB
Diff
Executable File
From d74710dd508eb1b60b410048a151e1d541d749d2 Mon Sep 17 00:00:00 2001
|
|
From: Andy Green <andy@openmoko.com>
|
|
Date: Fri, 25 Jul 2008 23:06:15 +0100
|
|
Subject: [PATCH] fix-pcf50633-migrate-gta02-peripherals-out.patch
|
|
|
|
pcf50633.c shouldn't know GTAxx at all. Move to using a
|
|
platform callback to allow definition of platform devices
|
|
with pcf50633 as parent device (good for enforcing suspend /
|
|
resume ordering). Remove all code references to GTAxx from
|
|
the sources (one string left for compatability).
|
|
|
|
Signed-off-by: Andy Green <andy@openmoko.com>
|
|
---
|
|
arch/arm/mach-s3c2440/mach-gta02.c | 30 ++++++++++++++++++-
|
|
drivers/i2c/chips/pcf50633.c | 57 ++++++++++++++++++-----------------
|
|
include/linux/pcf50633.h | 9 +++++-
|
|
3 files changed, 66 insertions(+), 30 deletions(-)
|
|
|
|
diff --git a/arch/arm/mach-s3c2440/mach-gta02.c b/arch/arm/mach-s3c2440/mach-gta02.c
|
|
index 309e484..fd746fd 100644
|
|
--- a/arch/arm/mach-s3c2440/mach-gta02.c
|
|
+++ b/arch/arm/mach-s3c2440/mach-gta02.c
|
|
@@ -464,6 +464,29 @@ static int pmu_callback(struct device *dev, unsigned int feature,
|
|
return 0;
|
|
}
|
|
|
|
+static struct platform_device gta01_pm_gps_dev = {
|
|
+ .name = "neo1973-pm-gps",
|
|
+};
|
|
+
|
|
+static struct platform_device gta01_pm_bt_dev = {
|
|
+ .name = "neo1973-pm-bt",
|
|
+};
|
|
+
|
|
+/* this is called when pc50633 is probed, unfortunately quite late in the
|
|
+ * day since it is an I2C bus device. Here we can belatedly define some
|
|
+ * platform devices with the advantage that we can mark the pcf50633 as the
|
|
+ * parent. This makes them get suspended and resumed with their parent
|
|
+ * the pcf50633 still around.
|
|
+ */
|
|
+
|
|
+static void gta02_pcf50633_attach_child_devices(struct device *parent_device)
|
|
+{
|
|
+ gta01_pm_gps_dev.dev.parent = parent_device;
|
|
+ gta01_pm_bt_dev.dev.parent = parent_device;
|
|
+ platform_device_register(>a01_pm_bt_dev);
|
|
+ platform_device_register(>a01_pm_gps_dev);
|
|
+}
|
|
+
|
|
static struct pcf50633_platform_data gta02_pcf_pdata = {
|
|
.used_features = PCF50633_FEAT_MBC |
|
|
PCF50633_FEAT_BBC |
|
|
@@ -478,6 +501,7 @@ static struct pcf50633_platform_data gta02_pcf_pdata = {
|
|
.r_fix_batt = 10000,
|
|
.r_fix_batt_par = 10000,
|
|
.r_sense_milli = 220,
|
|
+ .flag_use_apm_emulation = 0,
|
|
.resumers = {
|
|
[0] = PCF50633_INT1_USBINS |
|
|
PCF50633_INT1_USBREM |
|
|
@@ -577,7 +601,9 @@ static struct pcf50633_platform_data gta02_pcf_pdata = {
|
|
},
|
|
},
|
|
.defer_resume_backlight = 1,
|
|
- .resume_backlight_ramp_speed = 5
|
|
+ .resume_backlight_ramp_speed = 5,
|
|
+ .attach_child_devices = gta02_pcf50633_attach_child_devices
|
|
+
|
|
};
|
|
|
|
#if 0 /* currently unused */
|
|
@@ -772,6 +798,7 @@ struct platform_device s3c24xx_pwm_device = {
|
|
.num_resources = 0,
|
|
};
|
|
|
|
+
|
|
static struct platform_device *gta02_devices[] __initdata = {
|
|
&s3c_device_usb,
|
|
&s3c_device_wdt,
|
|
@@ -786,6 +813,7 @@ static struct platform_device *gta02_devices[] __initdata = {
|
|
>a02_version_device,
|
|
>a02_resume_reason_device,
|
|
&s3c24xx_pwm_device,
|
|
+
|
|
};
|
|
|
|
static struct s3c2410_nand_set gta02_nand_sets[] = {
|
|
diff --git a/drivers/i2c/chips/pcf50633.c b/drivers/i2c/chips/pcf50633.c
|
|
index 6745993..850bf93 100644
|
|
--- a/drivers/i2c/chips/pcf50633.c
|
|
+++ b/drivers/i2c/chips/pcf50633.c
|
|
@@ -50,7 +50,6 @@
|
|
#include <linux/jiffies.h>
|
|
|
|
#include <asm/mach-types.h>
|
|
-#include <asm/arch/gta02.h>
|
|
|
|
#include "pcf50633.h"
|
|
#include <linux/resume-dependency.h>
|
|
@@ -2004,18 +2003,6 @@ static DEVICE_ATTR(dump_regs, 0400, show_dump_regs, NULL);
|
|
* Driver initialization
|
|
***********************************************************************/
|
|
|
|
-#ifdef CONFIG_MACH_NEO1973_GTA02
|
|
-/* We currently place those platform devices here to make sure the device
|
|
- * suspend/resume order is correct */
|
|
-static struct platform_device gta01_pm_gps_dev = {
|
|
- .name = "neo1973-pm-gps",
|
|
-};
|
|
-
|
|
-static struct platform_device gta01_pm_bt_dev = {
|
|
- .name = "neo1973-pm-bt",
|
|
-};
|
|
-#endif
|
|
-
|
|
/*
|
|
* CARE! This table is modified at runtime!
|
|
*/
|
|
@@ -2209,14 +2196,15 @@ static int pcf50633_detect(struct i2c_adapter *adapter, int address, int kind)
|
|
apm_get_power_status = pcf50633_get_power_status;
|
|
data->probe_completed = 1;
|
|
|
|
-#ifdef CONFIG_MACH_NEO1973_GTA02
|
|
- if (machine_is_neo1973_gta02()) {
|
|
- gta01_pm_gps_dev.dev.parent = &new_client->dev;
|
|
- gta01_pm_bt_dev.dev.parent = &new_client->dev;
|
|
- platform_device_register(>a01_pm_bt_dev);
|
|
- platform_device_register(>a01_pm_gps_dev);
|
|
- }
|
|
-#endif
|
|
+ if (data->pdata->flag_use_apm_emulation)
|
|
+ apm_get_power_status = pcf50633_get_power_status;
|
|
+
|
|
+ /* if platform was interested, give him a chance to register
|
|
+ * platform devices that switch power with us as the parent
|
|
+ * at registration time -- ensures suspend / resume ordering
|
|
+ */
|
|
+ if (data->pdata->attach_child_devices)
|
|
+ (data->pdata->attach_child_devices)(&new_client->dev);
|
|
|
|
return 0;
|
|
exit_rtc:
|
|
@@ -2261,13 +2249,6 @@ static int pcf50633_detach_client(struct i2c_client *client)
|
|
if (pcf->pdata->used_features & PCF50633_FEAT_RTC)
|
|
rtc_device_unregister(pcf->rtc);
|
|
|
|
-#ifdef CONFIG_MACH_NEO1973_GTA02
|
|
- if (machine_is_neo1973_gta02()) {
|
|
- platform_device_unregister(>a01_pm_bt_dev);
|
|
- platform_device_unregister(>a01_pm_gps_dev);
|
|
- }
|
|
-#endif
|
|
-
|
|
sysfs_remove_group(&client->dev.kobj, &pcf_attr_group);
|
|
|
|
pm_power_off = NULL;
|
|
@@ -2465,6 +2446,26 @@ int pcf50633_ready(struct pcf50633_data *pcf)
|
|
}
|
|
EXPORT_SYMBOL_GPL(pcf50633_ready);
|
|
|
|
+int pcf50633_wait_for_ready(struct pcf50633_data *pcf, int timeout_ms,
|
|
+ char *name)
|
|
+{
|
|
+ /* so we always go once */
|
|
+ timeout_ms += 5;
|
|
+
|
|
+ while ((timeout_ms >= 5) && (pcf50633_ready(pcf))) {
|
|
+ timeout_ms -= 5; /* well, it isn't very accurate, but OK */
|
|
+ msleep(5);
|
|
+ }
|
|
+
|
|
+ if (timeout_ms < 5) {
|
|
+ printk(KERN_ERR"pcf50633_wait_for_ready: "
|
|
+ "%s BAILING on timeout\n", name);
|
|
+ return -EBUSY;
|
|
+ }
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+EXPORT_SYMBOL_GPL(pcf50633_wait_for_ready);
|
|
|
|
/*
|
|
* if backlight resume is selected to be deferred by platform, then it
|
|
diff --git a/include/linux/pcf50633.h b/include/linux/pcf50633.h
|
|
index b94b72a..4653285 100644
|
|
--- a/include/linux/pcf50633.h
|
|
+++ b/include/linux/pcf50633.h
|
|
@@ -132,7 +132,9 @@ pcf50633_register_resume_dependency(struct pcf50633_data *pcf,
|
|
extern int
|
|
pcf50633_notify_usb_current_limit_change(struct pcf50633_data *pcf,
|
|
unsigned int ma);
|
|
-
|
|
+extern int
|
|
+pcf50633_wait_for_ready(struct pcf50633_data *pcf, int timeout_ms,
|
|
+ char *name);
|
|
|
|
/* 0 = initialized and resumed and ready to roll, !=0 = either not
|
|
* initialized or not resumed yet
|
|
@@ -155,6 +157,10 @@ struct pcf50633_platform_data {
|
|
unsigned int onkey_seconds_sig_init;
|
|
unsigned int onkey_seconds_shutdown;
|
|
|
|
+ /* callback to attach platform children (to enforce suspend / resume
|
|
+ * ordering */
|
|
+ void (*attach_child_devices)(struct device *parent_device);
|
|
+
|
|
/* voltage regulator related */
|
|
struct pmu_voltage_rail rails[__NUM_PCF50633_REGULATORS];
|
|
unsigned int used_regulators;
|
|
@@ -163,6 +169,7 @@ struct pcf50633_platform_data {
|
|
unsigned int r_fix_batt;
|
|
unsigned int r_fix_batt_par;
|
|
unsigned int r_sense_milli;
|
|
+ int flag_use_apm_emulation;
|
|
|
|
unsigned char resumers[5];
|
|
|
|
--
|
|
1.5.6.3
|
|
|