[xburst] Add 2.6.37 support

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24914 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 49 insertions, 0 deletions

diff --git a/target/linux/xburst/patches-2.6.37/300-battery-fixes.patch b/target/linux/xburst/patches-2.6.37/300-battery-fixes.patch
new file mode 100644
index 0000000000..947c6711c3
--- /dev/null
+++ b/target/linux/xburst/patches-2.6.37/300-battery-fixes.patch
@@ -0,0 +1,49 @@
+--- a/drivers/power/jz4740-battery.c
++++ b/drivers/power/jz4740-battery.c
+@@ -47,6 +47,8 @@ struct jz_battery {
+ 
+ 	struct power_supply battery;
+ 	struct delayed_work work;
++
++	struct mutex lock;
+ };
+ 
+ static inline struct jz_battery *psy_to_jz_battery(struct power_supply *psy)
+@@ -68,6 +70,8 @@ static long jz_battery_read_voltage(stru
+ 	unsigned long val;
+ 	long voltage;
+ 
++	mutex_lock(&battery->lock);
++
+ 	INIT_COMPLETION(battery->read_completion);
+ 
+ 	enable_irq(battery->irq);
+@@ -91,6 +95,8 @@ static long jz_battery_read_voltage(stru
+ 	battery->cell->disable(battery->pdev);
+ 	disable_irq(battery->irq);
+ 
++	mutex_unlock(&battery->lock);
++
+ 	return voltage;
+ }
+ 
+@@ -240,6 +246,11 @@ static int __devinit jz_battery_probe(st
+ 	struct jz_battery *jz_battery;
+ 	struct power_supply *battery;
+ 
++	if (!pdata) {
++		dev_err(&pdev->dev, "No platform_data supplied\n");
++		return -ENXIO;
++	}
++
+ 	jz_battery = kzalloc(sizeof(*jz_battery), GFP_KERNEL);
+ 	if (!jz_battery) {
+ 		dev_err(&pdev->dev, "Failed to allocate driver structure\n");
+@@ -291,6 +302,7 @@ static int __devinit jz_battery_probe(st
+ 	jz_battery->pdev = pdev;
+ 
+ 	init_completion(&jz_battery->read_completion);
++	mutex_init(&jz_battery->lock);
+ 
+ 	INIT_DELAYED_WORK(&jz_battery->work, jz_battery_work);
+