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-rw-r--r--target/linux/xburst/patches-2.6.35/058-battery.patch522
1 files changed, 0 insertions, 522 deletions
diff --git a/target/linux/xburst/patches-2.6.35/058-battery.patch b/target/linux/xburst/patches-2.6.35/058-battery.patch
deleted file mode 100644
index ce3c04ef2c..0000000000
--- a/target/linux/xburst/patches-2.6.35/058-battery.patch
+++ /dev/null
@@ -1,522 +0,0 @@
-From a48343043ec8d4095512e9758308ba4c4422151f Mon Sep 17 00:00:00 2001
-From: Lars-Peter Clausen <lars@metafoo.de>
-Date: Sat, 19 Jun 2010 04:08:29 +0000
-Subject: [PATCH] POWER: Add JZ4740 battery driver.
-
-Add support for the battery voltage measurement part of the JZ4740 ADC unit.
-
-Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
-Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
-Cc: linux-mips@linux-mips.org
-Cc: linux-kernel@vger.kernel.org
-Patchwork: https://patchwork.linux-mips.org/patch/1416/
-Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
----
- drivers/power/Kconfig | 11 +
- drivers/power/Makefile | 1 +
- drivers/power/jz4740-battery.c | 445 ++++++++++++++++++++++++++++++++++
- include/linux/power/jz4740-battery.h | 24 ++
- 4 files changed, 481 insertions(+), 0 deletions(-)
- create mode 100644 drivers/power/jz4740-battery.c
- create mode 100644 include/linux/power/jz4740-battery.h
-
---- a/drivers/power/Kconfig
-+++ b/drivers/power/Kconfig
-@@ -142,4 +142,15 @@ config CHARGER_PCF50633
- help
- Say Y to include support for NXP PCF50633 Main Battery Charger.
-
-+config BATTERY_JZ4740
-+ tristate "Ingenic JZ4740 battery"
-+ depends on MACH_JZ4740
-+ depends on MFD_JZ4740_ADC
-+ help
-+ Say Y to enable support for the battery on Ingenic JZ4740 based
-+ boards.
-+
-+ This driver can be build as a module. If so, the module will be
-+ called jz4740-battery.
-+
- endif # POWER_SUPPLY
---- a/drivers/power/Makefile
-+++ b/drivers/power/Makefile
-@@ -34,3 +34,4 @@ obj-$(CONFIG_BATTERY_DA9030) += da9030_b
- obj-$(CONFIG_BATTERY_MAX17040) += max17040_battery.o
- obj-$(CONFIG_BATTERY_Z2) += z2_battery.o
- obj-$(CONFIG_CHARGER_PCF50633) += pcf50633-charger.o
-+obj-$(CONFIG_BATTERY_JZ4740) += jz4740-battery.o
---- /dev/null
-+++ b/drivers/power/jz4740-battery.c
-@@ -0,0 +1,445 @@
-+/*
-+ * Battery measurement code for Ingenic JZ SOC.
-+ *
-+ * Copyright (C) 2009 Jiejing Zhang <kzjeef@gmail.com>
-+ * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
-+ *
-+ * based on tosa_battery.c
-+ *
-+ * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
-+*
-+ * 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/interrupt.h>
-+#include <linux/kernel.h>
-+#include <linux/module.h>
-+#include <linux/platform_device.h>
-+#include <linux/slab.h>
-+
-+#include <linux/delay.h>
-+#include <linux/gpio.h>
-+#include <linux/mfd/core.h>
-+#include <linux/power_supply.h>
-+
-+#include <linux/power/jz4740-battery.h>
-+#include <linux/jz4740-adc.h>
-+
-+struct jz_battery {
-+ struct jz_battery_platform_data *pdata;
-+ struct platform_device *pdev;
-+
-+ struct resource *mem;
-+ void __iomem *base;
-+
-+ int irq;
-+ int charge_irq;
-+
-+ struct mfd_cell *cell;
-+
-+ int status;
-+ long voltage;
-+
-+ struct completion read_completion;
-+
-+ struct power_supply battery;
-+ struct delayed_work work;
-+};
-+
-+static inline struct jz_battery *psy_to_jz_battery(struct power_supply *psy)
-+{
-+ return container_of(psy, struct jz_battery, battery);
-+}
-+
-+static irqreturn_t jz_battery_irq_handler(int irq, void *devid)
-+{
-+ struct jz_battery *battery = devid;
-+
-+ complete(&battery->read_completion);
-+ return IRQ_HANDLED;
-+}
-+
-+static long jz_battery_read_voltage(struct jz_battery *battery)
-+{
-+ unsigned long t;
-+ unsigned long val;
-+ long voltage;
-+
-+ INIT_COMPLETION(battery->read_completion);
-+
-+ enable_irq(battery->irq);
-+ battery->cell->enable(battery->pdev);
-+
-+ t = wait_for_completion_interruptible_timeout(&battery->read_completion,
-+ HZ);
-+
-+ if (t > 0) {
-+ val = readw(battery->base) & 0xfff;
-+
-+ if (battery->pdata->info.voltage_max_design <= 2500000)
-+ val = (val * 78125UL) >> 7UL;
-+ else
-+ val = ((val * 924375UL) >> 9UL) + 33000;
-+ voltage = (long)val;
-+ } else {
-+ voltage = t ? t : -ETIMEDOUT;
-+ }
-+
-+ battery->cell->disable(battery->pdev);
-+ disable_irq(battery->irq);
-+
-+ return voltage;
-+}
-+
-+static int jz_battery_get_capacity(struct power_supply *psy)
-+{
-+ struct jz_battery *jz_battery = psy_to_jz_battery(psy);
-+ struct power_supply_info *info = &jz_battery->pdata->info;
-+ long voltage;
-+ int ret;
-+ int voltage_span;
-+
-+ voltage = jz_battery_read_voltage(jz_battery);
-+
-+ if (voltage < 0)
-+ return voltage;
-+
-+ voltage_span = info->voltage_max_design - info->voltage_min_design;
-+ ret = ((voltage - info->voltage_min_design) * 100) / voltage_span;
-+
-+ if (ret > 100)
-+ ret = 100;
-+ else if (ret < 0)
-+ ret = 0;
-+
-+ return ret;
-+}
-+
-+static int jz_battery_get_property(struct power_supply *psy,
-+ enum power_supply_property psp, union power_supply_propval *val)
-+{
-+ struct jz_battery *jz_battery = psy_to_jz_battery(psy);
-+ struct power_supply_info *info = &jz_battery->pdata->info;
-+ long voltage;
-+
-+ switch (psp) {
-+ case POWER_SUPPLY_PROP_STATUS:
-+ val->intval = jz_battery->status;
-+ break;
-+ case POWER_SUPPLY_PROP_TECHNOLOGY:
-+ val->intval = jz_battery->pdata->info.technology;
-+ break;
-+ case POWER_SUPPLY_PROP_HEALTH:
-+ voltage = jz_battery_read_voltage(jz_battery);
-+ if (voltage < info->voltage_min_design)
-+ val->intval = POWER_SUPPLY_HEALTH_DEAD;
-+ else
-+ val->intval = POWER_SUPPLY_HEALTH_GOOD;
-+ break;
-+ case POWER_SUPPLY_PROP_CAPACITY:
-+ val->intval = jz_battery_get_capacity(psy);
-+ break;
-+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
-+ val->intval = jz_battery_read_voltage(jz_battery);
-+ if (val->intval < 0)
-+ return val->intval;
-+ break;
-+ case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
-+ val->intval = info->voltage_max_design;
-+ break;
-+ case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
-+ val->intval = info->voltage_min_design;
-+ break;
-+ case POWER_SUPPLY_PROP_PRESENT:
-+ val->intval = 1;
-+ break;
-+ default:
-+ return -EINVAL;
-+ }
-+ return 0;
-+}
-+
-+static void jz_battery_external_power_changed(struct power_supply *psy)
-+{
-+ struct jz_battery *jz_battery = psy_to_jz_battery(psy);
-+
-+ cancel_delayed_work(&jz_battery->work);
-+ schedule_delayed_work(&jz_battery->work, 0);
-+}
-+
-+static irqreturn_t jz_battery_charge_irq(int irq, void *data)
-+{
-+ struct jz_battery *jz_battery = data;
-+
-+ cancel_delayed_work(&jz_battery->work);
-+ schedule_delayed_work(&jz_battery->work, 0);
-+
-+ return IRQ_HANDLED;
-+}
-+
-+static void jz_battery_update(struct jz_battery *jz_battery)
-+{
-+ int status;
-+ long voltage;
-+ bool has_changed = false;
-+ int is_charging;
-+
-+ if (gpio_is_valid(jz_battery->pdata->gpio_charge)) {
-+ is_charging = gpio_get_value(jz_battery->pdata->gpio_charge);
-+ is_charging ^= jz_battery->pdata->gpio_charge_active_low;
-+ if (is_charging)
-+ status = POWER_SUPPLY_STATUS_CHARGING;
-+ else
-+ status = POWER_SUPPLY_STATUS_NOT_CHARGING;
-+
-+ if (status != jz_battery->status) {
-+ jz_battery->status = status;
-+ has_changed = true;
-+ }
-+ }
-+
-+ voltage = jz_battery_read_voltage(jz_battery);
-+ if (abs(voltage - jz_battery->voltage) < 50000) {
-+ jz_battery->voltage = voltage;
-+ has_changed = true;
-+ }
-+
-+ if (has_changed)
-+ power_supply_changed(&jz_battery->battery);
-+}
-+
-+static enum power_supply_property jz_battery_properties[] = {
-+ POWER_SUPPLY_PROP_STATUS,
-+ POWER_SUPPLY_PROP_TECHNOLOGY,
-+ POWER_SUPPLY_PROP_HEALTH,
-+ POWER_SUPPLY_PROP_CAPACITY,
-+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
-+ POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
-+ POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
-+ POWER_SUPPLY_PROP_PRESENT,
-+};
-+
-+static void jz_battery_work(struct work_struct *work)
-+{
-+ /* Too small interval will increase system workload */
-+ const int interval = HZ * 30;
-+ struct jz_battery *jz_battery = container_of(work, struct jz_battery,
-+ work.work);
-+
-+ jz_battery_update(jz_battery);
-+ schedule_delayed_work(&jz_battery->work, interval);
-+}
-+
-+static int __devinit jz_battery_probe(struct platform_device *pdev)
-+{
-+ int ret = 0;
-+ struct jz_battery_platform_data *pdata = pdev->dev.parent->platform_data;
-+ struct jz_battery *jz_battery;
-+ struct power_supply *battery;
-+
-+ jz_battery = kzalloc(sizeof(*jz_battery), GFP_KERNEL);
-+ if (!jz_battery) {
-+ dev_err(&pdev->dev, "Failed to allocate driver structure\n");
-+ return -ENOMEM;
-+ }
-+
-+ jz_battery->cell = pdev->dev.platform_data;
-+
-+ jz_battery->irq = platform_get_irq(pdev, 0);
-+ if (jz_battery->irq < 0) {
-+ ret = jz_battery->irq;
-+ dev_err(&pdev->dev, "Failed to get platform irq: %d\n", ret);
-+ goto err_free;
-+ }
-+
-+ jz_battery->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+ if (!jz_battery->mem) {
-+ ret = -ENOENT;
-+ dev_err(&pdev->dev, "Failed to get platform mmio resource\n");
-+ goto err_free;
-+ }
-+
-+ jz_battery->mem = request_mem_region(jz_battery->mem->start,
-+ resource_size(jz_battery->mem), pdev->name);
-+ if (!jz_battery->mem) {
-+ ret = -EBUSY;
-+ dev_err(&pdev->dev, "Failed to request mmio memory region\n");
-+ goto err_free;
-+ }
-+
-+ jz_battery->base = ioremap_nocache(jz_battery->mem->start,
-+ resource_size(jz_battery->mem));
-+ if (!jz_battery->base) {
-+ ret = -EBUSY;
-+ dev_err(&pdev->dev, "Failed to ioremap mmio memory\n");
-+ goto err_release_mem_region;
-+ }
-+
-+ battery = &jz_battery->battery;
-+ battery->name = pdata->info.name;
-+ battery->type = POWER_SUPPLY_TYPE_BATTERY;
-+ battery->properties = jz_battery_properties;
-+ battery->num_properties = ARRAY_SIZE(jz_battery_properties);
-+ battery->get_property = jz_battery_get_property;
-+ battery->external_power_changed = jz_battery_external_power_changed;
-+ battery->use_for_apm = 1;
-+
-+ jz_battery->pdata = pdata;
-+ jz_battery->pdev = pdev;
-+
-+ init_completion(&jz_battery->read_completion);
-+
-+ INIT_DELAYED_WORK(&jz_battery->work, jz_battery_work);
-+
-+ ret = request_irq(jz_battery->irq, jz_battery_irq_handler, 0, pdev->name,
-+ jz_battery);
-+ if (ret) {
-+ dev_err(&pdev->dev, "Failed to request irq %d\n", ret);
-+ goto err_iounmap;
-+ }
-+ disable_irq(jz_battery->irq);
-+
-+ if (gpio_is_valid(pdata->gpio_charge)) {
-+ ret = gpio_request(pdata->gpio_charge, dev_name(&pdev->dev));
-+ if (ret) {
-+ dev_err(&pdev->dev, "charger state gpio request failed.\n");
-+ goto err_free_irq;
-+ }
-+ ret = gpio_direction_input(pdata->gpio_charge);
-+ if (ret) {
-+ dev_err(&pdev->dev, "charger state gpio set direction failed.\n");
-+ goto err_free_gpio;
-+ }
-+
-+ jz_battery->charge_irq = gpio_to_irq(pdata->gpio_charge);
-+
-+ if (jz_battery->charge_irq >= 0) {
-+ ret = request_irq(jz_battery->charge_irq,
-+ jz_battery_charge_irq,
-+ IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
-+ dev_name(&pdev->dev), jz_battery);
-+ if (ret) {
-+ dev_err(&pdev->dev, "Failed to request charge irq: %d\n", ret);
-+ goto err_free_gpio;
-+ }
-+ }
-+ } else {
-+ jz_battery->charge_irq = -1;
-+ }
-+
-+ if (jz_battery->pdata->info.voltage_max_design <= 2500000)
-+ jz4740_adc_set_config(pdev->dev.parent, JZ_ADC_CONFIG_BAT_MB,
-+ JZ_ADC_CONFIG_BAT_MB);
-+ else
-+ jz4740_adc_set_config(pdev->dev.parent, JZ_ADC_CONFIG_BAT_MB, 0);
-+
-+ ret = power_supply_register(&pdev->dev, &jz_battery->battery);
-+ if (ret) {
-+ dev_err(&pdev->dev, "power supply battery register failed.\n");
-+ goto err_free_charge_irq;
-+ }
-+
-+ platform_set_drvdata(pdev, jz_battery);
-+ schedule_delayed_work(&jz_battery->work, 0);
-+
-+ return 0;
-+
-+err_free_charge_irq:
-+ if (jz_battery->charge_irq >= 0)
-+ free_irq(jz_battery->charge_irq, jz_battery);
-+err_free_gpio:
-+ if (gpio_is_valid(pdata->gpio_charge))
-+ gpio_free(jz_battery->pdata->gpio_charge);
-+err_free_irq:
-+ free_irq(jz_battery->irq, jz_battery);
-+err_iounmap:
-+ platform_set_drvdata(pdev, NULL);
-+ iounmap(jz_battery->base);
-+err_release_mem_region:
-+ release_mem_region(jz_battery->mem->start, resource_size(jz_battery->mem));
-+err_free:
-+ kfree(jz_battery);
-+ return ret;
-+}
-+
-+static int __devexit jz_battery_remove(struct platform_device *pdev)
-+{
-+ struct jz_battery *jz_battery = platform_get_drvdata(pdev);
-+
-+ cancel_delayed_work_sync(&jz_battery->work);
-+
-+ if (gpio_is_valid(jz_battery->pdata->gpio_charge)) {
-+ if (jz_battery->charge_irq >= 0)
-+ free_irq(jz_battery->charge_irq, jz_battery);
-+ gpio_free(jz_battery->pdata->gpio_charge);
-+ }
-+
-+ power_supply_unregister(&jz_battery->battery);
-+
-+ free_irq(jz_battery->irq, jz_battery);
-+
-+ iounmap(jz_battery->base);
-+ release_mem_region(jz_battery->mem->start, resource_size(jz_battery->mem));
-+
-+ return 0;
-+}
-+
-+#ifdef CONFIG_PM
-+static int jz_battery_suspend(struct device *dev)
-+{
-+ struct jz_battery *jz_battery = dev_get_drvdata(dev);
-+
-+ cancel_delayed_work_sync(&jz_battery->work);
-+ jz_battery->status = POWER_SUPPLY_STATUS_UNKNOWN;
-+
-+ return 0;
-+}
-+
-+static int jz_battery_resume(struct device *dev)
-+{
-+ struct jz_battery *jz_battery = dev_get_drvdata(dev);
-+
-+ schedule_delayed_work(&jz_battery->work, 0);
-+
-+ return 0;
-+}
-+
-+static const struct dev_pm_ops jz_battery_pm_ops = {
-+ .suspend = jz_battery_suspend,
-+ .resume = jz_battery_resume,
-+};
-+
-+#define JZ_BATTERY_PM_OPS (&jz_battery_pm_ops)
-+#else
-+#define JZ_BATTERY_PM_OPS NULL
-+#endif
-+
-+static struct platform_driver jz_battery_driver = {
-+ .probe = jz_battery_probe,
-+ .remove = __devexit_p(jz_battery_remove),
-+ .driver = {
-+ .name = "jz4740-battery",
-+ .owner = THIS_MODULE,
-+ .pm = JZ_BATTERY_PM_OPS,
-+ },
-+};
-+
-+static int __init jz_battery_init(void)
-+{
-+ return platform_driver_register(&jz_battery_driver);
-+}
-+module_init(jz_battery_init);
-+
-+static void __exit jz_battery_exit(void)
-+{
-+ platform_driver_unregister(&jz_battery_driver);
-+}
-+module_exit(jz_battery_exit);
-+
-+MODULE_ALIAS("platform:jz4740-battery");
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
-+MODULE_DESCRIPTION("JZ4740 SoC battery driver");
---- /dev/null
-+++ b/include/linux/power/jz4740-battery.h
-@@ -0,0 +1,24 @@
-+/*
-+ * Copyright (C) 2009, Jiejing Zhang <kzjeef@gmail.com>
-+ *
-+ * This program is free software; you can redistribute it and/or modify it
-+ * under the terms of the GNU General Public License as published by the
-+ * Free Software Foundation; either version 2 of the License, or (at your
-+ * option) any later version.
-+ *
-+ * You should have received a copy of the GNU General Public License along
-+ * with this program; if not, write to the Free Software Foundation, Inc.,
-+ * 675 Mass Ave, Cambridge, MA 02139, USA.
-+ *
-+ */
-+
-+#ifndef __JZ4740_BATTERY_H
-+#define __JZ4740_BATTERY_H
-+
-+struct jz_battery_platform_data {
-+ struct power_supply_info info;
-+ int gpio_charge; /* GPIO port of Charger state */
-+ int gpio_charge_active_low;
-+};
-+
-+#endif
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