add ixp4xx 2.6.25 patchset

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10891 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 197 insertions, 0 deletions

diff --git a/target/linux/ixp4xx/patches-2.6.25/012-rtc_x1205_new_style.patch b/target/linux/ixp4xx/patches-2.6.25/012-rtc_x1205_new_style.patch
new file mode 100644
index 000000000..d81a570ea
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.25/012-rtc_x1205_new_style.patch
@@ -0,0 +1,197 @@
+---
+ drivers/rtc/rtc-x1205.c |  128 ++++++++++++++++--------------------------------
+ 1 file changed, 43 insertions(+), 85 deletions(-)
+
+Index: linux-2.6.25-rc6-armeb/drivers/rtc/rtc-x1205.c
+===================================================================
+--- linux-2.6.25-rc6-armeb.orig/drivers/rtc/rtc-x1205.c	2008-03-20 10:24:13.000000000 +1030
++++ linux-2.6.25-rc6-armeb/drivers/rtc/rtc-x1205.c	2008-03-20 10:24:23.000000000 +1030
+@@ -22,20 +22,7 @@
+ #include <linux/rtc.h>
+ #include <linux/delay.h>
+ 
+-#define DRV_VERSION "1.0.7"
+-
+-/* Addresses to scan: none. This chip is located at
+- * 0x6f and uses a two bytes register addressing.
+- * Two bytes need to be written to read a single register,
+- * while most other chips just require one and take the second
+- * one as the data to be written. To prevent corrupting
+- * unknown chips, the user must explicitly set the probe parameter.
+- */
+-
+-static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
+-
+-/* Insmod parameters */
+-I2C_CLIENT_INSMOD;
++#define DRV_VERSION "1.0.8"
+ 
+ /* offsets into CCR area */
+ 
+@@ -91,19 +78,7 @@
+ 
+ #define X1205_HR_MIL		0x80	/* Set in ccr.hour for 24 hr mode */
+ 
+-/* Prototypes */
+-static int x1205_attach(struct i2c_adapter *adapter);
+-static int x1205_detach(struct i2c_client *client);
+-static int x1205_probe(struct i2c_adapter *adapter, int address, int kind);
+-
+-static struct i2c_driver x1205_driver = {
+-	.driver		= {
+-		.name	= "x1205",
+-	},
+-	.id		= I2C_DRIVERID_X1205,
+-	.attach_adapter = &x1205_attach,
+-	.detach_client	= &x1205_detach,
+-};
++static struct i2c_driver x1205_driver;
+ 
+ /*
+  * In the routines that deal directly with the x1205 hardware, we use
+@@ -497,58 +472,51 @@
+ }
+ static DEVICE_ATTR(dtrim, S_IRUGO, x1205_sysfs_show_dtrim, NULL);
+ 
+-static int x1205_attach(struct i2c_adapter *adapter)
++static int x1205_sysfs_register(struct device *dev)
++{
++	int err;
++
++	err = device_create_file(dev, &dev_attr_atrim);
++	if (err)
++		return err;
++
++	err = device_create_file(dev, &dev_attr_dtrim);
++	if (err)
++		device_remove_file(dev, &dev_attr_atrim);
++
++	return err;
++}
++
++static void x1205_sysfs_unregister(struct device *dev)
+ {
+-	return i2c_probe(adapter, &addr_data, x1205_probe);
++	device_remove_file(dev, &dev_attr_atrim);
++	device_remove_file(dev, &dev_attr_dtrim);
+ }
+ 
+-static int x1205_probe(struct i2c_adapter *adapter, int address, int kind)
++
++static int x1205_probe(struct i2c_client *client)
+ {
+ 	int err = 0;
+ 	unsigned char sr;
+-	struct i2c_client *client;
+ 	struct rtc_device *rtc;
+ 
+-	dev_dbg(&adapter->dev, "%s\n", __FUNCTION__);
++	dev_dbg(&client->dev, "%s\n", __FUNCTION__);
+ 
+-	if (!i2c_check_functionality(adapter, I2C_FUNC_I2C)) {
+-		err = -ENODEV;
+-		goto exit;
++	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
++		return -ENODEV;
+ 	}
+ 
+-	if (!(client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL))) {
+-		err = -ENOMEM;
+-		goto exit;
++	if (x1205_validate_client(client) < 0) {
++		return -ENODEV;
+ 	}
+ 
+-	/* I2C client */
+-	client->addr = address;
+-	client->driver = &x1205_driver;
+-	client->adapter	= adapter;
+-
+-	strlcpy(client->name, x1205_driver.driver.name, I2C_NAME_SIZE);
+-
+-	/* Verify the chip is really an X1205 */
+-	if (kind < 0) {
+-		if (x1205_validate_client(client) < 0) {
+-			err = -ENODEV;
+-			goto exit_kfree;
+-		}
+-	}
+-
+-	/* Inform the i2c layer */
+-	if ((err = i2c_attach_client(client)))
+-		goto exit_kfree;
+-
+ 	dev_info(&client->dev, "chip found, driver version " DRV_VERSION "\n");
+ 
+ 	rtc = rtc_device_register(x1205_driver.driver.name, &client->dev,
+ 				&x1205_rtc_ops, THIS_MODULE);
+ 
+-	if (IS_ERR(rtc)) {
+-		err = PTR_ERR(rtc);
+-		goto exit_detach;
+-	}
++	if (IS_ERR(rtc))
++		return PTR_ERR(rtc);
+ 
+ 	i2c_set_clientdata(client, rtc);
+ 
+@@ -565,45 +533,35 @@
+ 	else
+ 		dev_err(&client->dev, "couldn't read status\n");
+ 
+-	err = device_create_file(&client->dev, &dev_attr_atrim);
+-	if (err) goto exit_devreg;
+-	err = device_create_file(&client->dev, &dev_attr_dtrim);
+-	if (err) goto exit_atrim;
++	err = x1205_sysfs_register(&client->dev);
++	if (err)
++		goto exit_devreg;
+ 
+ 	return 0;
+ 
+-exit_atrim:
+-	device_remove_file(&client->dev, &dev_attr_atrim);
+-
+ exit_devreg:
+ 	rtc_device_unregister(rtc);
+ 
+-exit_detach:
+-	i2c_detach_client(client);
+-
+-exit_kfree:
+-	kfree(client);
+-
+-exit:
+ 	return err;
+ }
+ 
+-static int x1205_detach(struct i2c_client *client)
++static int x1205_remove(struct i2c_client *client)
+ {
+-	int err;
+ 	struct rtc_device *rtc = i2c_get_clientdata(client);
+ 
+- 	if (rtc)
+-		rtc_device_unregister(rtc);
+-
+-	if ((err = i2c_detach_client(client)))
+-		return err;
+-
+-	kfree(client);
+-
++	rtc_device_unregister(rtc);
++	x1205_sysfs_unregister(&client->dev);
+ 	return 0;
+ }
+ 
++static struct i2c_driver x1205_driver = {
++	.driver		= {
++		.name	= "rtc-x1205",
++	},
++	.probe		= x1205_probe,
++	.remove		= x1205_remove,
++};
++
+ static int __init x1205_init(void)
+ {
+ 	return i2c_add_driver(&x1205_driver);