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Diffstat (limited to 'target/linux/ixp4xx/patches-2.6.23/294-eeprom_new_notifier.patch')
-rw-r--r--target/linux/ixp4xx/patches-2.6.23/294-eeprom_new_notifier.patch190
1 files changed, 0 insertions, 190 deletions
diff --git a/target/linux/ixp4xx/patches-2.6.23/294-eeprom_new_notifier.patch b/target/linux/ixp4xx/patches-2.6.23/294-eeprom_new_notifier.patch
deleted file mode 100644
index f91e778..0000000
--- a/target/linux/ixp4xx/patches-2.6.23/294-eeprom_new_notifier.patch
+++ /dev/null
@@ -1,190 +0,0 @@
-Index: linux-2.6.23.17/drivers/i2c/chips/eeprom.c
-===================================================================
---- linux-2.6.23.17.orig/drivers/i2c/chips/eeprom.c
-+++ linux-2.6.23.17/drivers/i2c/chips/eeprom.c
-@@ -33,6 +33,8 @@
- #include <linux/jiffies.h>
- #include <linux/i2c.h>
- #include <linux/mutex.h>
-+#include <linux/notifier.h>
-+#include <linux/eeprom.h>
-
- /* Addresses to scan */
- static unsigned short normal_i2c[] = { 0x50, 0x51, 0x52, 0x53, 0x54,
-@@ -41,26 +43,7 @@ static unsigned short normal_i2c[] = { 0
- /* 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 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;
--};
--
-+ATOMIC_NOTIFIER_HEAD(eeprom_chain);
-
- static int eeprom_attach_adapter(struct i2c_adapter *adapter);
- static int eeprom_detect(struct i2c_adapter *adapter, int address, int kind);
-@@ -198,6 +181,7 @@ static int eeprom_detect(struct i2c_adap
- data->valid = 0;
- mutex_init(&data->update_lock);
- data->nature = UNKNOWN;
-+ data->attr = &eeprom_attr;
-
- /* Tell the I2C layer a new client has arrived */
- if ((err = i2c_attach_client(new_client)))
-@@ -225,6 +209,9 @@ static int eeprom_detect(struct i2c_adap
- if (err)
- goto exit_detach;
-
-+ /* call the notifier chain */
-+ atomic_notifier_call_chain(&eeprom_chain, EEPROM_REGISTER, data);
-+
- return 0;
-
- exit_detach:
-@@ -250,6 +237,41 @@ static int eeprom_detach_client(struct i
- return 0;
- }
-
-+/**
-+ * 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);
-Index: linux-2.6.23.17/include/linux/eeprom.h
-===================================================================
---- /dev/null
-+++ linux-2.6.23.17/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 */
-Index: linux-2.6.23.17/include/linux/notifier.h
-===================================================================
---- linux-2.6.23.17.orig/include/linux/notifier.h
-+++ linux-2.6.23.17/include/linux/notifier.h
-@@ -231,5 +231,8 @@ static inline int notifier_to_errno(int
- #define PM_SUSPEND_PREPARE 0x0003 /* Going to suspend the system */
- #define PM_POST_SUSPEND 0x0004 /* Suspend finished */
-
-+/* eeprom notifier chain */
-+#define EEPROM_REGISTER 0x0001
-+
- #endif /* __KERNEL__ */
- #endif /* _LINUX_NOTIFIER_H */