From: Ziggy <ziggy@tardis.(none)>
Date: Tue, 11 Dec 2012 21:06:49 +0000 (-0500)
Subject: Add FastCharge
X-Git-Url: https://www.ziggy471.com/git/gitweb.cgi?p=ziggy471-sgs3-jb.git;a=commitdiff;h=6d94b86070a752ef250760ed27d8cf04de12a3e5

Add FastCharge
---

--- a/arch/arm/mach-msm/Kconfig
+++ b/arch/arm/mach-msm/Kconfig
@@ -2350,4 +2350,11 @@ config MSM_DCVS
 	  algorithm and the algorithm returns a frequency for the core which is
 	  passed to the frequency change driver.
 
+config FORCE_FAST_CHARGE
+	bool "Force AC charge mode at will"
+	default y
+	help
+	  A simple sysfs interface to force adapters that
+	  are detected as USB to charge as AC.
+
 endif
--- a/arch/arm/mach-msm/Makefile
+++ b/arch/arm/mach-msm/Makefile
@@ -230,6 +230,9 @@ obj-$(CONFIG_ARCH_MSM8960) += acpuclock-
 obj-$(CONFIG_ARCH_MSM8960) += memory_topology.o
 obj-$(CONFIG_ARCH_MSM8960) += saw-regulator.o
 obj-$(CONFIG_ARCH_MSM8960) += devices-8960.o
+
+obj-$(CONFIG_FORCE_FAST_CHARGE) += fastchg.o
+
 obj-$(CONFIG_ARCH_APQ8064) += devices-8960.o devices-8064.o
 board-8960-all-objs += board-8960.o board-8960-camera.o board-8960-display.o board-8960-pmic.o board-8960-storage.o board-8960-gpiomux.o
 board-8930-all-objs += board-8930.o board-8930-camera.o board-8930-display.o board-8930-pmic.o board-8930-storage.o board-8930-gpiomux.o
--- /dev/null
+++ b/arch/arm/mach-msm/fastchg.c
@@ -0,0 +1,70 @@
+/*
+ * Author: Chad Froebel <chadfroebel@gmail.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kobject.h>
+#include <linux/sysfs.h>
+#include <linux/fastchg.h>
+
+int force_fast_charge;
+
+/* sysfs interface */
+static ssize_t force_fast_charge_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
+{
+return sprintf(buf, "%d\n", force_fast_charge);
+}
+
+static ssize_t force_fast_charge_store(struct kobject *kobj, struct kobj_attribute *attr, const char *buf, size_t count)
+{
+sscanf(buf, "%du", &force_fast_charge);
+return count;
+}
+
+static struct kobj_attribute force_fast_charge_attribute =
+__ATTR(force_fast_charge, 0666, force_fast_charge_show, force_fast_charge_store);
+
+static struct attribute *attrs[] = {
+&force_fast_charge_attribute.attr,
+NULL,
+};
+
+static struct attribute_group attr_group = {
+.attrs = attrs,
+};
+
+static struct kobject *force_fast_charge_kobj;
+
+int force_fast_charge_init(void)
+{
+        int retval;
+
+        force_fast_charge = 0;
+
+        force_fast_charge_kobj = kobject_create_and_add("fast_charge", kernel_kobj);
+        if (!force_fast_charge_kobj) {
+                return -ENOMEM;
+        }
+        retval = sysfs_create_group(force_fast_charge_kobj, &attr_group);
+        if (retval)
+                kobject_put(force_fast_charge_kobj);
+        return retval;
+}
+/* end sysfs interface */
+
+void force_fast_charge_exit(void)
+{
+        kobject_put(force_fast_charge_kobj);
+}
+
+module_init(force_fast_charge_init);
+module_exit(force_fast_charge_exit);
--- a/drivers/misc/fsa9485.c
+++ b/drivers/misc/fsa9485.c
@@ -36,6 +36,7 @@
 #include <linux/mfd/pmic8058.h>
 #include <linux/input.h>
 #include <linux/sii9234.h>
+#include <linux/fastchg.h>
 
 /* FSA9480 I2C registers */
 #define FSA9485_REG_DEVID		0x01
@@ -645,8 +646,14 @@ static int fsa9485_detect_dev(struct fsa
 		if (val1 & DEV_USB || val2 & DEV_T2_USB_MASK) {
 			dev_info(&client->dev, "usb connect\n");
 
-			if (pdata->usb_cb)
-				pdata->usb_cb(FSA9485_ATTACHED);
+			if (pdata->usb_cb) {
+				if (force_fast_charge != 0) {
+					pdata->charger_cb(FSA9485_ATTACHED);
+				} else {
+					pdata->usb_cb(FSA9485_ATTACHED);
+				}
+			}
+
 			if (usbsw->mansw) {
 				ret = i2c_smbus_write_byte_data(client,
 				FSA9485_REG_MANSW1, usbsw->mansw);
--- /dev/null
+++ b/include/linux/fastchg.h
@@ -0,0 +1,21 @@
+/*
+ * Author: Chad Froebel <chadfroebel@gmail.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+
+#ifndef _LINUX_FASTCHG_H
+#define _LINUX_FASTCHG_H
+
+extern int force_fast_charge;
+
+#endif