migrate gateworks board support to the new at24 eeprom driver

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13450 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 0 insertions, 183 deletions

diff --git a/target/linux/ixp4xx/patches-2.6.27/294-eeprom_new_notifier.patch b/target/linux/ixp4xx/patches-2.6.27/294-eeprom_new_notifier.patch
deleted file mode 100644
index d11f8f01d..000000000
--- a/target/linux/ixp4xx/patches-2.6.27/294-eeprom_new_notifier.patch
+++ /dev/null
@@ -1,183 +0,0 @@
---- a/drivers/i2c/chips/eeprom.c
-+++ b/drivers/i2c/chips/eeprom.c
-@@ -27,6 +27,8 @@
- #include <linux/jiffies.h>
- #include <linux/i2c.h>
- #include <linux/mutex.h>
-+#include <linux/notifier.h>
-+#include <linux/eeprom.h>
- 
- /* Addresses to scan */
- static const unsigned short normal_i2c[] = { 0x50, 0x51, 0x52, 0x53, 0x54,
-@@ -35,25 +37,7 @@ static const unsigned short normal_i2c[]
- /* Insmod parameters */
- I2C_CLIENT_INSMOD_1(eeprom);
- 
--
--/* Size of EEPROM in bytes */
--#define EEPROM_SIZE		256
--
--/* possible types of eeprom devices */
--enum eeprom_nature {
--	UNKNOWN,
--	VAIO,
--};
--
--/* Each client has this additional data */
--struct eeprom_data {
--	struct mutex update_lock;
--	u8 valid;			/* bitfield, bit!=0 if slice is valid */
--	unsigned long last_updated[8];	/* In jiffies, 8 slices */
--	u8 data[EEPROM_SIZE];		/* Register values */
--	enum eeprom_nature nature;
--};
--
-+ATOMIC_NOTIFIER_HEAD(eeprom_chain);
- 
- static void eeprom_update_client(struct i2c_client *client, u8 slice)
- {
-@@ -178,6 +162,7 @@ static int eeprom_probe(struct i2c_clien
- 	i2c_set_clientdata(client, data);
- 	mutex_init(&data->update_lock);
- 	data->nature = UNKNOWN;
-+	data->attr = &eeprom_attr;
- 
- 	/* Detect the Vaio nature of EEPROMs.
- 	   We use the "PCG-" or "VGN-" prefix as the signature. */
-@@ -202,6 +187,9 @@ static int eeprom_probe(struct i2c_clien
- 	if (err)
- 		goto exit_kfree;
- 
-+	/* call the notifier chain */
-+	atomic_notifier_call_chain(&eeprom_chain, EEPROM_REGISTER, data);
-+
- 	return 0;
- 
- exit_kfree:
-@@ -236,6 +224,41 @@ static struct i2c_driver eeprom_driver =
- 	.address_data	= &addr_data,
- };
- 
-+/**
-+ * register_eeprom_notifier - register a 'user' of EEPROM devices.
-+ * @nb: pointer to notifier info structure
-+ *
-+ * Registers a callback function to be called upon detection
-+ * of an EEPROM device.  Detection invokes the 'add' callback
-+ * with the kobj of the mutex and a bin_attribute which allows
-+ * read from the EEPROM.  The intention is that the notifier
-+ * will be able to read system configuration from the notifier.
-+ *
-+ * Only EEPROMs detected *after* the addition of the notifier
-+ * are notified.  I.e. EEPROMs already known to the system
-+ * will not be notified - add the notifier from board level
-+ * code!
-+ */
-+int register_eeprom_notifier(struct notifier_block *nb)
-+{
-+	return atomic_notifier_chain_register(&eeprom_chain, nb);
-+}
-+
-+/**
-+ *	unregister_eeprom_notifier - unregister a 'user' of EEPROM devices.
-+ *	@old: pointer to notifier info structure
-+ *
-+ *	Removes a callback function from the list of 'users' to be
-+ *	notified upon detection of EEPROM devices.
-+ */
-+int unregister_eeprom_notifier(struct notifier_block *nb)
-+{
-+	return atomic_notifier_chain_unregister(&eeprom_chain, nb);
-+}
-+
-+EXPORT_SYMBOL_GPL(register_eeprom_notifier);
-+EXPORT_SYMBOL_GPL(unregister_eeprom_notifier);
-+
- static int __init eeprom_init(void)
- {
- 	return i2c_add_driver(&eeprom_driver);
---- /dev/null
-+++ b/include/linux/eeprom.h
-@@ -0,0 +1,71 @@
-+#ifndef _LINUX_EEPROM_H
-+#define _LINUX_EEPROM_H
-+/*
-+ *  EEPROM notifier header
-+ *
-+ *  Copyright (C) 2006 John Bowler
-+ */
-+
-+/*
-+ * 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.
-+ *
-+ * 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.
-+ *
-+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-+ */
-+
-+#ifndef __KERNEL__
-+#error This is a kernel header
-+#endif
-+
-+#include <linux/list.h>
-+#include <linux/kobject.h>
-+#include <linux/sysfs.h>
-+
-+/* Size of EEPROM in bytes */
-+#define EEPROM_SIZE             256
-+
-+/* possible types of eeprom devices */
-+enum eeprom_nature {
-+	UNKNOWN,
-+	VAIO,
-+};
-+
-+/* Each client has this additional data */
-+struct eeprom_data {
-+	struct i2c_client client;
-+	struct mutex update_lock;
-+	u8 valid;			/* bitfield, bit!=0 if slice is valid */
-+	unsigned long last_updated[8];	/* In jiffies, 8 slices */
-+	u8 data[EEPROM_SIZE];		/* Register values */
-+	enum eeprom_nature nature;
-+	struct bin_attribute *attr;
-+};
-+
-+/*
-+ * This is very basic.
-+ *
-+ * If an EEPROM is detected on the I2C bus (this only works for
-+ * I2C EEPROMs) the notifier chain  is called with
-+ * both the I2C information and the kobject for the sysfs
-+ * device which has been registers.  It is then possible to
-+ * read from the device via the bin_attribute::read method
-+ * to extract configuration information.
-+ *
-+ * Register the notifier in the board level code, there is no
-+ * need to unregister it but you can if you want (it will save
-+ * a little bit or kernel memory to do so).
-+ */
-+
-+extern int register_eeprom_notifier(struct notifier_block *nb);
-+extern int unregister_eeprom_notifier(struct notifier_block *nb);
-+
-+#endif /* _LINUX_EEPROM_H */
---- a/include/linux/notifier.h
-+++ b/include/linux/notifier.h
-@@ -256,5 +256,8 @@ extern struct blocking_notifier_head reb
- #define VT_UPDATE		0x0004 /* A bigger update occurred */
- #define VT_PREWRITE		0x0005 /* A char is about to be written to the console */
- 
-+/* eeprom notifier chain */
-+#define EEPROM_REGISTER		0x0001
-+
- #endif /* __KERNEL__ */
- #endif /* _LINUX_NOTIFIER_H */