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-rw-r--r--target/linux/xburst/patches-2.6.34/100-battery.patch441
1 files changed, 0 insertions, 441 deletions
diff --git a/target/linux/xburst/patches-2.6.34/100-battery.patch b/target/linux/xburst/patches-2.6.34/100-battery.patch
deleted file mode 100644
index 3e6a6b9..0000000
--- a/target/linux/xburst/patches-2.6.34/100-battery.patch
+++ /dev/null
@@ -1,441 +0,0 @@
-From 83f97dcbcc93584a7d7930b6fe06562691bd865a Mon Sep 17 00:00:00 2001
-From: Lars-Peter Clausen <lars@metafoo.de>
-Date: Sat, 24 Apr 2010 12:28:54 +0200
-Subject: [PATCH] Add jz4740 battery driver
-
----
- drivers/power/Kconfig | 11 +
- drivers/power/Makefile | 1 +
- drivers/power/jz4740-battery.c | 359 ++++++++++++++++++++++++++++++++++
- include/linux/power/jz4740-battery.h | 24 +++
- 4 files changed, 395 insertions(+), 0 deletions(-)
- create mode 100644 drivers/power/jz4740-battery.c
- create mode 100644 include/linux/power/jz4740-battery.h
-
-diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
-index faaa9b4..2f4e51f 100644
---- a/drivers/power/Kconfig
-+++ b/drivers/power/Kconfig
-@@ -131,4 +131,15 @@ config CHARGER_PCF50633
- help
- Say Y to include support for NXP PCF50633 Main Battery Charger.
-
-+config BATTERY_JZ4740
-+ tristate "Ingenic JZ4720/JZ4740 battery"
-+ depends on SOC_JZ4740
-+ depends on JZ4740_ADC
-+ help
-+ Say Y to enable support for the battery on Ingenic JZ4720/JZ4740 based
-+ boards.
-+
-+ This driver can be build as a module. If so, the module will be
-+ called jz4740-battery.
-+
- endif # POWER_SUPPLY
-diff --git a/drivers/power/Makefile b/drivers/power/Makefile
-index a2ba7c8..3b6b971 100644
---- a/drivers/power/Makefile
-+++ b/drivers/power/Makefile
-@@ -32,3 +32,4 @@ obj-$(CONFIG_BATTERY_BQ27x00) += bq27x00_battery.o
- obj-$(CONFIG_BATTERY_DA9030) += da9030_battery.o
- obj-$(CONFIG_BATTERY_MAX17040) += max17040_battery.o
- obj-$(CONFIG_CHARGER_PCF50633) += pcf50633-charger.o
-+obj-$(CONFIG_BATTERY_JZ4740) += jz4740-battery.o
-diff --git a/drivers/power/jz4740-battery.c b/drivers/power/jz4740-battery.c
-new file mode 100644
-index 0000000..c89b9f7
---- /dev/null
-+++ b/drivers/power/jz4740-battery.c
-@@ -0,0 +1,359 @@
-+/*
-+ * 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/spinlock.h>
-+
-+#include <linux/delay.h>
-+#include <linux/gpio.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;
-+
-+ int charge_irq;
-+
-+ int status;
-+ long voltage;
-+
-+ 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 long jz_battery_read_voltage(struct jz_battery *jz_battery)
-+{
-+ struct device *adc = jz_battery->battery.dev->parent->parent;
-+ enum jz_adc_battery_scale scale;
-+
-+ if (jz_battery->pdata->info.voltage_max_design > 2500000)
-+ scale = JZ_ADC_BATTERY_SCALE_7V5;
-+ else
-+ scale = JZ_ADC_BATTERY_SCALE_2V5;
-+
-+ return jz4740_adc_read_battery_voltage(adc, scale);
-+}
-+
-+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;
-+ long voltage_difference;
-+ bool has_changed = 0;
-+
-+ if (gpio_is_valid(jz_battery->pdata->gpio_charge)) {
-+ int is_charging;
-+
-+ 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 = 1;
-+ }
-+ }
-+
-+ voltage = jz_battery_read_voltage(jz_battery);
-+ voltage_difference = voltage - jz_battery->voltage;
-+ if (voltage_difference > 50000 || voltage_difference < 50000) {
-+ jz_battery->voltage = voltage;
-+ has_changed = 1;
-+ }
-+ 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.platform_data;
-+ struct jz_battery *jz_battery;
-+ struct power_supply *battery;
-+
-+ if (!pdev->dev.platform_data) {
-+ dev_err(&pdev->dev, "No platform data\n");
-+ return -EINVAL;
-+ }
-+
-+ jz_battery = kzalloc(sizeof(*jz_battery), GFP_KERNEL);
-+
-+ if (!jz_battery) {
-+ dev_err(&pdev->dev, "Failed to allocate driver structure\n");
-+ return -ENOMEM;
-+ }
-+
-+ 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;
-+
-+ INIT_DELAYED_WORK(&jz_battery->work, jz_battery_work);
-+
-+ 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;
-+ }
-+ 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;
-+ }
-+
-+
-+ ret = power_supply_register(&pdev->dev, &jz_battery->battery);
-+ if (ret) {
-+ dev_err(&pdev->dev, "power supply battery register failed.\n");
-+ goto err_free_irq;
-+ }
-+
-+ platform_set_drvdata(pdev, jz_battery);
-+ schedule_delayed_work(&jz_battery->work, 0);
-+
-+ return 0;
-+
-+err_free_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:
-+ 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);
-+
-+ 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("Jiejing Zhang <kzjeef@gmail.com>");
-+MODULE_DESCRIPTION("JZ4720/JZ4740 SoC battery driver");
-diff --git a/include/linux/power/jz4740-battery.h b/include/linux/power/jz4740-battery.h
-new file mode 100644
-index 0000000..19c9610
---- /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
---
-1.5.6.5
-
generated by cgit v1.1 at 2024-11-26 00:44:44 +0000