Re: zaurus battery patches
From: Marek Vasut
Date: Sat Jul 31 2010 - 09:48:49 EST
Dne So 31. Äervence 2010 08:18:17 Pavel Machek napsal(a):
> Hi!
>
> ...they certainly need more work. .7. version is newer but incomplete.
use at your own risk ... its not too tested and contains lots of debuging goo.
From 195c27ead448a9a6a5ae3958dc2c2a11450f84c7 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marek.vasut@xxxxxxxxx>
Date: Sat, 31 Jul 2010 13:15:24 +0200
Subject: [PATCH] PXA: Reworked spitz-battery
Signed-off-by: Marek Vasut <marek.vasut@xxxxxxxxx>
---
arch/arm/mach-pxa/Makefile | 2 +-
arch/arm/mach-pxa/spitz.c | 23 ++
drivers/power/Kconfig | 7 +
drivers/power/Makefile | 1 +
drivers/power/spitz_battery.c | 680 +++++++++++++++++++++++++++++++++++++++++
5 files changed, 712 insertions(+), 1 deletions(-)
create mode 100644 drivers/power/spitz_battery.c
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index 85c7fb3..704fb31 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -82,7 +82,7 @@ obj-$(CONFIG_MACH_PALMZ72) += palmz72.o
obj-$(CONFIG_MACH_PALMLD) += palmld.o
obj-$(CONFIG_PALM_TREO) += palmtreo.o
obj-$(CONFIG_PXA_SHARP_C7xx) += corgi.o sharpsl_pm.o corgi_pm.o
-obj-$(CONFIG_PXA_SHARP_Cxx00) += spitz.o sharpsl_pm.o spitz_pm.o
+obj-$(CONFIG_PXA_SHARP_Cxx00) += spitz.o
obj-$(CONFIG_MACH_POODLE) += poodle.o
obj-$(CONFIG_MACH_TOSA) += tosa.o
obj-$(CONFIG_MACH_ICONTROL) += icontrol.o mxm8x10.o
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index a8d4e3a..6cee4aa 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -683,6 +683,28 @@ static inline void spitz_irda_init(void) {}
#endif
/******************************************************************************
+ * Battery
+ ******************************************************************************/
+//#if defined(CONFIG_PXA_FICP) || defined(CONFIG_PXA_FICP_MODULE)
+static struct platform_device spitz_batt_device = {
+ .name = "spitz-battery",
+ .id = -1,
+// .dev = {
+// .platform_data = &spitz_gpio_keys_platform_data,
+// },
+};
+
+static void __init spitz_batt_init(void)
+{
+ printk("%s[%i]\n", __FUNCTION__, __LINE__);
+ platform_device_register(&spitz_batt_device);
+ printk("%s[%i]\n", __FUNCTION__, __LINE__);
+}
+//#else
+//static inline void spitz_batt_init(void) {}
+//#endif
+
+/******************************************************************************
* Framebuffer
******************************************************************************/
#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
@@ -966,6 +988,7 @@ static void __init spitz_init(void)
spitz_nor_init();
spitz_nand_init();
spitz_i2c_init();
+ spitz_batt_init();
}
static void __init spitz_fixup(struct machine_desc *desc,
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 8e9ba17..e4c538c 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -136,6 +136,13 @@ config BATTERY_Z2
help
Say Y to include support for the battery on the Zipit Z2.
+config BATTERY_SPITZ
+ tristate "Sharp Spitz/Akita/Borzoi battery driver"
+ depends on SENSORS_MAX1111 && (MACH_AKITA || MACH_SPITZ || MACH_BORZOI)
+ help
+ Say Y to include support for the battery in the
+ Sharp Spitz/Akita/Borzoi.
+
config CHARGER_PCF50633
tristate "NXP PCF50633 MBC"
depends on MFD_PCF50633
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index 0005080..3d282be 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -33,4 +33,5 @@ obj-$(CONFIG_BATTERY_BQ27x00) += bq27x00_battery.o
obj-$(CONFIG_BATTERY_DA9030) += da9030_battery.o
obj-$(CONFIG_BATTERY_MAX17040) += max17040_battery.o
obj-$(CONFIG_BATTERY_Z2) += z2_battery.o
+obj-$(CONFIG_BATTERY_SPITZ) += spitz_battery.o
obj-$(CONFIG_CHARGER_PCF50633) += pcf50633-charger.o
diff --git a/drivers/power/spitz_battery.c b/drivers/power/spitz_battery.c
new file mode 100644
index 0000000..46b07f1
--- /dev/null
+++ b/drivers/power/spitz_battery.c
@@ -0,0 +1,680 @@
+/*
+ * Battery and Power Management code for the Sharp SL-Cxxxx
+ *
+ * Copyright (c) 2009 Pavel Machek <pavel@xxxxxx>
+ * Copyright (c) 2010 Marek Vasut <marek.vasut@xxxxxxxxx>
+ *
+ * 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.
+ *
+ * Li-ion batteries are angry beasts, and they like to explode.
+ * If angry lithium comes your way, the hw was misdesigned.
+ *
+ */
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/power_supply.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
+
+#include <asm/mach-types.h>
+#include <mach/spitz.h>
+//#include <mach/sharpsl.h>
+//#include <mach/sharpsl_pm.h>
+
+//#include "../../arch/arm/mach-pxa/sharpsl.h"
+#define SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP 10 /* 10 msec */
+#define SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT 10 /* 10 msec */
+#define SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN 10 /* 10 msec */
+
+#define SHARPSL_WAIT_DISCHARGE_ON 100 /* 100 msec */
+
+#define SHARPSL_BATT_VOLT 1
+#define SHARPSL_BATT_TEMP 2
+#define SHARPSL_ACIN_VOLT 3
+#define SHARPSL_STATUS_ACIN 4
+#define SHARPSL_STATUS_LOCK 5
+#define SHARPSL_STATUS_CHRGFULL 6
+#define SHARPSL_STATUS_FATAL 7
+
+static int spitz_bat_status = POWER_SUPPLY_STATUS_UNKNOWN;
+static int spitz_bat_charge = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
+static int spitz_bat_temp = -1;
+static int spitz_bat_volt = -1;
+static int spitz_ac_volt = -1;
+
+static DEFINE_MUTEX(bat_lock);
+static DECLARE_WAIT_QUEUE_HEAD(bat_wait);
+static struct task_struct *bat_thread;
+static int bat_restart;
+
+extern int max1111_read_channel(int);
+
+int basic_current = 125; /* miliAmp */
+int battery_resistance = 422; /* miliOhm */
+
+/* 422 seems to be suitable for very old, 1Ah battery.
+ 2Ah battery probably has better resistance */
+
+/* Unfortunately, resistance depends on state of charge, current
+ * direction and temperature.
+ *
+ * Ouch, and dependency is actually _not_ too simple. It is lowest
+ * at 3.55V, very slowly rises at 4V (approximately linear dependency),
+ * and quickly rises towards 3.2V (in something exponential-looking).
+ *
+ * It is about same at 25Celsius and 40Celsius, and about 2.5x the value
+ * on 0Celsius, rising _very_ sharply.
+ *
+ * Li-ion should only be charged between 0 and 45 Celsius, and discharged
+ * between -20 and 60 celsius.
+ */
+/*
+extern int backlight_current;
+
+int battery_current(void)
+{
+ int intensity = sharpsl_pm.machinfo->backlight_get_status ? sharpsl_pm.machinfo->backlight_get_status() : 0;
+
+ return basic_current + backlight_current;
+}
+
+int liion_internal_voltage(int voltage, int current_ma)
+{
+ return voltage + (battery_resistance * current_ma / 1000);
+}
+
+int liion_expected_voltage(int internal_voltage, int current_ma)
+{
+ return internal_voltage - (battery_resistance * current_ma / 1000);
+}
+*/
+
+/* See for example http://www.kokam.com/english/biz/rc.html for
+ * voltage/capacity characteristic. I assume it is going to be
+ * reasonably similar to li-ion used in collie.
+ *
+ */
+
+/*
+ { 420, 100 },
+ { 417, 95 }, means it will report 100% between 418 and 420
+ */
+/*
+struct battery_thresh battery_levels[] = {
+ { 3980, 100 },
+ { 3900, 95 },
+ { 3860, 90 },
+ { 3800, 85 },
+ { 3760, 80 },
+ { 3720, 74 },
+ { 3680, 69 },
+ { 3620, 65 },
+ { 3570, 59 },
+ { 3560, 55 },
+ { 3550, 48 },
+ { 3530, 45 },
+ { 3510, 39 },
+ { 3490, 33 },
+ { 3470, 29 },
+ { 3450, 23 },
+ { 3410, 16 },
+ { 0, 0 },
+};
+
+int get_percentage(void)
+{
+ int i = ARRAY_SIZE(battery_levels);
+ struct battery_thresh *thresh;
+ int voltage = liion_internal_voltage(spitz_bat_volt, battery_current());
+
+ thresh = battery_levels;
+
+ while (i > 0 && (voltage > thresh[i].voltage))
+ i--;
+
+ return thresh[i].percentage;
+}
+*/
+static int spitz_bat_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ switch (psp) {
+ case POWER_SUPPLY_PROP_CHARGE_TYPE:
+ mutex_lock(&bat_lock);
+ val->intval = spitz_bat_charge;
+ mutex_unlock(&bat_lock);
+ return 0;
+ case POWER_SUPPLY_PROP_STATUS:
+ mutex_lock(&bat_lock);
+ val->intval = spitz_bat_status;
+ mutex_unlock(&bat_lock);
+ return 0;
+ case POWER_SUPPLY_PROP_TECHNOLOGY:
+ val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
+ return 0;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ if (spitz_bat_volt >= 0) {
+ mutex_lock(&bat_lock);
+ val->intval = spitz_bat_volt;
+ mutex_unlock(&bat_lock);
+ return 0;
+ } else
+ return -EINVAL;
+/* case POWER_SUPPLY_PROP_VOLTAGE_AVG:
+ val->intval = liion_internal_voltage(liion_voltage(), battery_current())*1000;
+ return 0;*/
+ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+ val->intval = 4200000;
+ return 0;
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+ val->intval = 3400000;
+ return 0;
+ case POWER_SUPPLY_PROP_TEMP:
+ if (spitz_bat_temp >= 0) {
+ mutex_lock(&bat_lock);
+ val->intval = spitz_bat_temp;
+ mutex_unlock(&bat_lock);
+ return 0;
+ } else
+ return -EINVAL;
+/* case POWER_SUPPLY_PROP_MODEL_NAME:
+ val->strval = "spitz-battery";
+ return 0;*/
+ case POWER_SUPPLY_PROP_PRESENT:
+ val->intval = 1;
+ return 0;
+ case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
+ val->intval = 2000000;
+ return 0;
+/* case POWER_SUPPLY_PROP_CAPACITY:
+ val->intval = get_percentage();
+ return 0;
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ val->intval = battery_current() * 1000;
+ return 0;*/
+ default:
+ return -EINVAL;
+ }
+ return -EINVAL;
+}
+
+static int spitz_ac_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ switch (psp) {
+ case POWER_SUPPLY_PROP_STATUS:
+ mutex_lock(&bat_lock);
+ val->intval = spitz_bat_status;
+ mutex_unlock(&bat_lock);
+ return 0;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ mutex_lock(&bat_lock);
+ val->intval = spitz_ac_volt;
+ mutex_unlock(&bat_lock);
+ return 0;
+ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+ val->intval = 5250000;
+ return 0;
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
+ val->intval = 4750000;
+ return 0;
+// case POWER_SUPPLY_PROP_MODEL_NAME:
+// val->strval = "spitz-power-supply";
+// return 0;
+ case POWER_SUPPLY_PROP_PRESENT:
+ val->intval = !gpio_get_value(SPITZ_GPIO_AC_IN);
+ return 0;
+ default:
+ return -EINVAL;
+ }
+ return -EINVAL;
+}
+
+static void spitz_bat_external_power_changed(struct power_supply *bat_ps)
+{
+ printk("%s[%i]\n", __FUNCTION__, __LINE__);
+}
+
+static enum power_supply_property spitz_bat_main_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+// POWER_SUPPLY_PROP_VOLTAGE_AVG,
+ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+ POWER_SUPPLY_PROP_TEMP,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_CHARGE_TYPE,//?
+// POWER_SUPPLY_PROP_HEALTH,//?
+ POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,//?
+// POWER_SUPPLY_PROP_CURRENT_NOW,
+// POWER_SUPPLY_PROP_CAPACITY,
+};
+
+static struct power_supply spitz_bat_main = {
+ .name = "main-battery",
+ .type = POWER_SUPPLY_TYPE_BATTERY,
+ .properties = spitz_bat_main_props,
+ .num_properties = ARRAY_SIZE(spitz_bat_main_props),
+ .get_property = spitz_bat_get_property,
+ .external_power_changed = spitz_bat_external_power_changed,
+ .use_for_apm = 1,
+};
+
+static enum power_supply_property spitz_ac_props[] = {
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
+ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
+ POWER_SUPPLY_PROP_PRESENT,
+};
+
+static struct power_supply spitz_ac = {
+ .name = "ac",
+ .type = POWER_SUPPLY_TYPE_MAINS,
+ .properties = spitz_ac_props,
+ .num_properties = ARRAY_SIZE(spitz_ac_props),
+ .get_property = spitz_ac_get_property,
+};
+
+static void spitz_bat_set_chrg(int type, int update)
+{
+/* If something fails here ...
+ *
+ * ..,:*:"*:~"*;'*'..
+ * .::*;;*~*:*;~:`::"'':;.
+ * ,'*":*';~*":*";*'''":'":.
+ * :;.'*.',;*~,;*';,*;*,*;;*
+ * ';*:*';):"=*.~.,'(*,;*';
+ * '*~"` :"*';.*;. `~=*`
+ * (":*:*'*;')
+ * :"':' ';:
+ * .. " ""';. ..
+ * . :; '";;": *:: //
+ *__/..""".._....,..,.,.,.,.//;:;,.,..::.
+ * BOOM!!
+ */
+printk("%s[%i] %i\n", __FUNCTION__, __LINE__, type);
+ spitz_bat_charge = type;
+ switch (type) {
+ case POWER_SUPPLY_CHARGE_TYPE_NONE:
+ gpio_set_value(SPITZ_GPIO_JK_B, 0);
+ gpio_set_value(SPITZ_GPIO_CHRG_ON, 1);
+ break;
+ case POWER_SUPPLY_CHARGE_TYPE_TRICKLE:
+ gpio_set_value(SPITZ_GPIO_JK_B, 0);
+ gpio_set_value(SPITZ_GPIO_CHRG_ON, 0);
+ break;
+ case POWER_SUPPLY_CHARGE_TYPE_FAST:
+ gpio_set_value(SPITZ_GPIO_JK_B, 1);
+ gpio_set_value(SPITZ_GPIO_CHRG_ON, 0);
+ break;
+ default:
+ spitz_bat_charge = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN;
+ break;
+
+ }
+ if (update) {
+ power_supply_changed(&spitz_ac);
+ power_supply_changed(&spitz_bat_main);
+ }
+}
+
+/*
+ * max1111 accepts channels from 0-3, however,
+ * it is encoded from 0-7 here in the code.
+ */
+
+static int spitz_bat_max_sample(int channel, int delay)
+{
+ int i;
+ int ret = 0;
+
+ for (i = 0; i < 5; i++) {
+ ret += max1111_read_channel(channel);
+ mdelay(delay);
+ }
+
+ return ret / 5;
+}
+static int spitz_bat_get_temp(void)
+{
+ /*
+ * SHARPSL_BATT_TEMP returns:
+ * 121: battery finished charging in 22C room
+ * 141: outside at 6C
+ */
+ int ret;
+
+ mdelay(SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP);
+ gpio_set_value(SPITZ_GPIO_ADC_TEMP_ON, 1);
+ ret = spitz_bat_max_sample(SHARPSL_BATT_TEMP,
+ SHARPSL_CHECK_BATTERY_WAIT_TIME_TEMP);
+ gpio_set_value(SPITZ_GPIO_ADC_TEMP_ON, 0);
+ return ret;
+}
+
+static inline int spitz_bat_get_volt(void)
+{
+ int ret;
+ int charge = spitz_bat_charge;
+
+// spitz_bat_set_chrg(POWER_SUPPLY_CHARGE_TYPE_NONE, 0);
+
+// gpio_set_value(SPITZ_GPIO_JK_A, 1);
+// mdelay(SHARPSL_WAIT_DISCHARGE_ON);
+ /* XXX missing -- toggle green led by some standard mean */
+
+ ret = spitz_bat_max_sample(SHARPSL_BATT_VOLT,
+ SHARPSL_CHECK_BATTERY_WAIT_TIME_VOLT);
+
+// gpio_set_value(SPITZ_GPIO_JK_A, 0);
+ /* XXX missing -- toggle green led by some standard mean */
+
+// spitz_bat_set_chrg(charge, 0);
+
+ return ret;
+}
+
+static inline int spitz_bat_get_acin_volt(void)
+{
+ return spitz_bat_max_sample(SHARPSL_ACIN_VOLT,
+ SHARPSL_CHECK_BATTERY_WAIT_TIME_ACIN);
+}
+
+static int spitz_bat_thread(void *null)
+{
+ int ac_in, chrg_full, fatal_bat;
+
+ set_freezable();
+
+ do {
+ ac_in = !gpio_get_value(SPITZ_GPIO_AC_IN);
+ chrg_full = gpio_get_value(SPITZ_GPIO_CHRG_FULL);
+ fatal_bat = !gpio_get_value(SPITZ_GPIO_FATAL_BAT);
+
+ bat_restart = 0;
+
+ printk("%s[%i] AC:%i CH:%i FB:%i\n", __FUNCTION__, __LINE__, !!ac_in, !!chrg_full, !!fatal_bat);
+
+ mutex_lock(&bat_lock);
+
+ if (fatal_bat) {
+ spitz_bat_set_chrg(POWER_SUPPLY_CHARGE_TYPE_NONE, 1);
+ spitz_bat_status = POWER_SUPPLY_STATUS_UNKNOWN;
+ printk("XXX\n");
+ goto end;
+ }
+
+ if (ac_in) {
+ if (chrg_full) {
+ if (spitz_bat_status != POWER_SUPPLY_STATUS_FULL) {
+ spitz_bat_set_chrg(POWER_SUPPLY_CHARGE_TYPE_TRICKLE, 1);
+ spitz_bat_status = POWER_SUPPLY_STATUS_FULL;
+ }
+ } else {
+ if (spitz_bat_status != POWER_SUPPLY_STATUS_CHARGING) {
+ spitz_bat_set_chrg(POWER_SUPPLY_CHARGE_TYPE_FAST, 1);
+ spitz_bat_status = POWER_SUPPLY_STATUS_CHARGING;
+ }
+ }
+ } else {
+ if (spitz_bat_status != POWER_SUPPLY_STATUS_DISCHARGING) {
+ spitz_bat_set_chrg(POWER_SUPPLY_CHARGE_TYPE_NONE, 1);
+ spitz_bat_status = POWER_SUPPLY_STATUS_DISCHARGING;
+ }
+ }
+
+ spitz_bat_temp = spitz_bat_get_temp();
+ /*
+ * Thanks to Stanislav B. ADC has 3.3V as reference,
+ * is connected to battery over 47kOhm, and to ground over 100kOhm.
+ */
+ spitz_bat_volt = (spitz_bat_get_volt());// * 1000 * 147 * 33) / 256;
+ printk("SBV: %i\n", spitz_bat_volt);
+ spitz_bat_volt = (spitz_bat_volt * 10000 * 147 * 33) / 256;
+ /*
+ * Thanks to Stanislav B. ADC has 3.3V as reference,
+ * is connected to acin over 2kOhm, and to ground over 1kOhm.
+ */
+ spitz_ac_volt = (spitz_bat_get_acin_volt());// * 3000 * 3300) / 256
+ printk("SAV: %i\n", spitz_ac_volt);
+ spitz_ac_volt = (spitz_ac_volt * 3000 * 3300) / 256;
+
+end:
+ mutex_unlock(&bat_lock);
+
+ wait_event_freezable_timeout(bat_wait, bat_restart || kthread_should_stop(), msecs_to_jiffies(1000));
+
+ printk("%s[%i] AC:%i CH:%i FB:%i [BT:%i BV:%i AV:%i\n", __FUNCTION__, __LINE__, !!ac_in, !!chrg_full, !!fatal_bat, spitz_bat_temp, spitz_bat_volt, spitz_ac_volt);
+ } while (!kthread_should_stop());
+
+ printk("%s[%i]\n", __FUNCTION__, __LINE__);
+ bat_thread = NULL;
+
+ return 0;
+}
+
+static irqreturn_t spitz_bat_ac_in_irq(int irq, void *data)
+{
+ printk("%s[%i] %i\n", __FUNCTION__, __LINE__, !!gpio_get_value(SPITZ_GPIO_AC_IN));
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t spitz_bat_chrg_full_irq(int irq, void *data)
+{
+// printk("%s[%i] %i\n", __FUNCTION__, __LINE__, !!gpio_get_value(SPITZ_GPIO_CHRG_FULL));
+// schedule_work(&bat_work);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t spitz_bat_fatal_bat_irq(int irq, void *data)
+{
+ printk("%s[%i] %i\n", __FUNCTION__, __LINE__, !!gpio_get_value(SPITZ_GPIO_FATAL_BAT));
+ pr_err("Fatal battery error!\n");
+ spitz_bat_set_chrg(POWER_SUPPLY_CHARGE_TYPE_NONE, 1);
+ return IRQ_HANDLED;
+}
+
+static int __devinit spitz_bat_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ if (!(machine_is_spitz() || machine_is_akita()
+ || machine_is_borzoi())) {
+ dev_err(&pdev->dev,
+ "This driver only supports Akita, Spitz and Borzoi!");
+ return -ENODEV;
+ }
+
+ if (pdev->id != -1) {
+ dev_err(&pdev->dev,
+ "Can't register multiple instances of this driver!");
+ return -EINVAL;
+ }
+
+ ret = gpio_request(SPITZ_GPIO_AC_IN, "AC IN");
+ if (ret)
+ goto err;
+ ret = gpio_direction_input(SPITZ_GPIO_AC_IN);
+ if (ret)
+ goto err2;
+ ret = request_irq(gpio_to_irq(SPITZ_GPIO_AC_IN),
+ spitz_bat_ac_in_irq, IRQF_TRIGGER_RISING |
+ IRQF_TRIGGER_FALLING, "AC Detect", pdev);
+ if (ret)
+ goto err2;
+
+ ret = gpio_request(SPITZ_GPIO_CHRG_FULL, "CHRG FULL");
+ if (ret)
+ goto err3;
+ ret = gpio_direction_input(SPITZ_GPIO_CHRG_FULL);
+ if (ret)
+ goto err4;
+ ret = request_irq(gpio_to_irq(SPITZ_GPIO_CHRG_FULL),
+ spitz_bat_chrg_full_irq, IRQF_TRIGGER_RISING |
+ IRQF_TRIGGER_FALLING, "Charging complete", pdev);
+ if (ret)
+ goto err4;
+
+ ret = gpio_request(SPITZ_GPIO_FATAL_BAT, "FATAL BAT");
+ if (ret)
+ goto err5;
+ ret = gpio_direction_input(SPITZ_GPIO_FATAL_BAT);
+ if (ret)
+ goto err6;
+ ret = request_irq(gpio_to_irq(SPITZ_GPIO_FATAL_BAT),
+ spitz_bat_fatal_bat_irq, IRQF_TRIGGER_RISING |
+ IRQF_TRIGGER_FALLING, "Battery error", pdev);
+ if (ret)
+ goto err6;
+
+ ret = gpio_request(SPITZ_GPIO_JK_A, "JK A");
+ if (ret)
+ goto err7;
+ ret = gpio_direction_output(SPITZ_GPIO_JK_A, 0);
+ if (ret)
+ goto err8;
+ gpio_set_value(SPITZ_GPIO_JK_A, 0);
+
+ ret = gpio_request(SPITZ_GPIO_JK_B, "JK B");
+ if (ret)
+ goto err8;
+ ret = gpio_direction_output(SPITZ_GPIO_JK_B, 0);
+ if (ret)
+ goto err9;
+
+ ret = gpio_request(SPITZ_GPIO_CHRG_ON, "CHRG ON");
+ if (ret)
+ goto err9;
+ ret = gpio_direction_output(SPITZ_GPIO_CHRG_ON, 1);
+ if (ret)
+ goto err10;
+
+ ret = gpio_request(SPITZ_GPIO_ADC_TEMP_ON, "TEMP MSMT");
+ if (ret)
+ goto err10;
+ ret = gpio_direction_output(SPITZ_GPIO_ADC_TEMP_ON, 0);
+ if (ret)
+ goto err11;
+
+ mutex_init(&bat_lock);
+
+ printk("%s[%i]\n", __FUNCTION__, __LINE__);
+ ret = power_supply_register(&pdev->dev, &spitz_bat_main);
+ if (ret)
+ goto err11;
+
+ ret = power_supply_register(&pdev->dev, &spitz_ac);
+ if (ret)
+ goto err12;
+
+ bat_restart = 0;
+ init_waitqueue_head(&bat_wait);
+ bat_thread = kthread_run(spitz_bat_thread, NULL, "spitz-bat");
+
+ printk("%s[%i]\n", __FUNCTION__, __LINE__);
+
+ return 0;
+
+err12:
+ power_supply_unregister(&spitz_bat_main);
+err11:
+ gpio_free(SPITZ_GPIO_ADC_TEMP_ON);
+err10:
+ gpio_free(SPITZ_GPIO_CHRG_ON);
+err9:
+ gpio_free(SPITZ_GPIO_JK_B);
+err8:
+ gpio_free(SPITZ_GPIO_JK_A);
+err7:
+ free_irq(gpio_to_irq(SPITZ_GPIO_FATAL_BAT), pdev);
+err6:
+ gpio_free(SPITZ_GPIO_FATAL_BAT);
+err5:
+ free_irq(gpio_to_irq(SPITZ_GPIO_CHRG_FULL), pdev);
+err4:
+ gpio_free(SPITZ_GPIO_CHRG_FULL);
+err3:
+ free_irq(gpio_to_irq(SPITZ_GPIO_AC_IN), pdev);
+err2:
+ gpio_free(SPITZ_GPIO_AC_IN);
+err:
+ return ret;
+}
+
+static int __devexit spitz_bat_remove(struct platform_device *pdev)
+{
+ kthread_stop(bat_thread);
+ power_supply_unregister(&spitz_ac);
+ power_supply_unregister(&spitz_bat_main);
+ gpio_free(SPITZ_GPIO_ADC_TEMP_ON);
+ gpio_free(SPITZ_GPIO_CHRG_ON);
+ gpio_free(SPITZ_GPIO_JK_B);
+ gpio_free(SPITZ_GPIO_JK_A);
+ free_irq(gpio_to_irq(SPITZ_GPIO_FATAL_BAT), pdev);
+ gpio_free(SPITZ_GPIO_FATAL_BAT);
+ free_irq(gpio_to_irq(SPITZ_GPIO_CHRG_FULL), pdev);
+ gpio_free(SPITZ_GPIO_CHRG_FULL);
+ free_irq(gpio_to_irq(SPITZ_GPIO_AC_IN), pdev);
+ gpio_free(SPITZ_GPIO_AC_IN);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int spitz_bat_suspend(struct device *dev)
+{
+ return 0;
+}
+
+static int spitz_bat_resume(struct device *dev)
+{
+ wake_up(&bat_wait);
+ return 0;
+}
+
+static const struct dev_pm_ops spitz_bat_pm_ops = {
+ .suspend = spitz_bat_suspend,
+ .resume = spitz_bat_resume,
+};
+#endif
+
+static struct platform_driver spitz_bat_driver = {
+ .driver = {
+ .name = "spitz-battery",
+ .owner = THIS_MODULE,
+#ifdef CONFIG_PM
+ .pm = &spitz_bat_pm_ops,
+#endif
+ },
+ .probe = spitz_bat_probe,
+ .remove = __devexit_p(spitz_bat_remove),
+};
+
+static int __init spitz_bat_init(void)
+{
+ return platform_driver_register(&spitz_bat_driver);
+}
+
+static void __exit spitz_bat_exit(void)
+{
+ platform_driver_unregister(&spitz_bat_driver);
+}
+
+module_init(spitz_bat_init);
+module_exit(spitz_bat_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Pavel Machek");
+MODULE_DESCRIPTION("Spitz battery driver");
+MODULE_ALIAS("platform:spitz-battery");
--
1.7.1