i2c: Delete the i2c-isa pseudo bus driver

There are no users of i2c-isa left, so we can finally get rid of it.

Signed-off-by: Jean Delvare <khali@linux-fr.org>

4 files changed, 0 insertions, 198 deletions

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 838dc1c19d61..c63bfa68e144 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -236,9 +236,6 @@ config I2C_IOP3XX
           This driver can also be built as a module.  If so, the module
           will be called i2c-iop3xx.
 
-config I2C_ISA
-        tristate
-
 config I2C_IXP4XX
         tristate "IXP4xx GPIO-Based I2C Interface (DEPRECATED)"
         depends on ARCH_IXP4XX
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index 14d1432f698b..b6a8037f1feb 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -18,7 +18,6 @@ obj-$(CONFIG_I2C_I801)		+= i2c-i801.o
 obj-$(CONFIG_I2C_I810)          += i2c-i810.o
 obj-$(CONFIG_I2C_IBM_IIC)       += i2c-ibm_iic.o
 obj-$(CONFIG_I2C_IOP3XX)        += i2c-iop3xx.o
-obj-$(CONFIG_I2C_ISA)           += i2c-isa.o
 obj-$(CONFIG_I2C_IXP2000)       += i2c-ixp2000.o
 obj-$(CONFIG_I2C_IXP4XX)        += i2c-ixp4xx.o
 obj-$(CONFIG_I2C_POWERMAC)      += i2c-powermac.o
diff --git a/drivers/i2c/busses/i2c-isa.c b/drivers/i2c/busses/i2c-isa.c
deleted file mode 100644
index b0e1370075de..000000000000
--- a/drivers/i2c/busses/i2c-isa.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/*
-    i2c-isa.c - an i2c-core-like thing for ISA hardware monitoring chips
-    Copyright (C) 2005  Jean Delvare <khali@linux-fr.org>
-
-    Based on the i2c-isa pseudo-adapter from the lm_sensors project
-    Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl> 
-
-    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., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-/* This implements an i2c-core-like thing for ISA hardware monitoring
-   chips. Such chips are linked to the i2c subsystem for historical
-   reasons (because the early ISA hardware monitoring chips such as the
-   LM78 had both an I2C and an ISA interface). They used to be
-   registered with the main i2c-core, but as a first step in the
-   direction of a clean separation between I2C and ISA chip drivers,
-   we now have this separate core for ISA ones. It is significantly
-   more simple than the real one, of course, because we don't have to
-   handle multiple busses: there is only one (fake) ISA adapter.
-   It is worth noting that we still rely on i2c-core for some things
-   at the moment - but hopefully this won't last. */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/i2c.h>
-#include <linux/i2c-isa.h>
-#include <linux/platform_device.h>
-#include <linux/completion.h>
-
-/* Exported by i2c-core for i2c-isa only */
-extern void i2c_adapter_dev_release(struct device *dev);
-extern struct class i2c_adapter_class;
-
-static u32 isa_func(struct i2c_adapter *adapter);
-
-/* This is the actual algorithm we define */
-static const struct i2c_algorithm isa_algorithm = {
-        .functionality  = isa_func,
-};
-
-/* There can only be one... */
-static struct i2c_adapter isa_adapter = {
-        .owner          = THIS_MODULE,
-        .id             = I2C_HW_ISA,
-        .class          = I2C_CLASS_HWMON,
-        .algo           = &isa_algorithm,
-        .name           = "ISA main adapter",
-};
-
-/* We can't do a thing... */
-static u32 isa_func(struct i2c_adapter *adapter)
-{
-        return 0;
-}
-
-
-/* We implement an interface which resembles i2c_{add,del}_driver,
-   but for i2c-isa drivers. We don't have to remember and handle lists
-   of drivers and adapters so this is much more simple, of course. */
-
-int i2c_isa_add_driver(struct i2c_driver *driver)
-{
-        int res;
-
-        /* Add the driver to the list of i2c drivers in the driver core */
-        driver->driver.bus = &i2c_bus_type;
-        res = driver_register(&driver->driver);
-        if (res)
-                return res;
-        dev_dbg(&isa_adapter.dev, "Driver %s registered\n", driver->driver.name);
-
-        /* Now look for clients */
-        res = driver->attach_adapter(&isa_adapter);
-        if (res) {
-                dev_dbg(&isa_adapter.dev,
-                        "Driver %s failed to attach adapter, unregistering\n",
-                        driver->driver.name);
-                driver_unregister(&driver->driver);
-        }
-        return res;
-}
-
-int i2c_isa_del_driver(struct i2c_driver *driver)
-{
-        struct list_head *item, *_n;
-        struct i2c_client *client;
-        int res;
-
-        /* Detach all clients belonging to this one driver */
-        list_for_each_safe(item, _n, &isa_adapter.clients) {
-                client = list_entry(item, struct i2c_client, list);
-                if (client->driver != driver)
-                        continue;
-                dev_dbg(&isa_adapter.dev, "Detaching client %s at 0x%x\n",
-                        client->name, client->addr);
-                if ((res = driver->detach_client(client))) {
-                        dev_err(&isa_adapter.dev, "Failed, driver "
-                                "%s not unregistered!\n",
-                                driver->driver.name);
-                        return res;
-                }
-        }
-
-        /* Get the driver off the core list */
-        driver_unregister(&driver->driver);
-        dev_dbg(&isa_adapter.dev, "Driver %s unregistered\n", driver->driver.name);
-
-        return 0;
-}
-
-
-static int __init i2c_isa_init(void)
-{
-        int err;
-
-        mutex_init(&isa_adapter.clist_lock);
-        INIT_LIST_HEAD(&isa_adapter.clients);
-
-        isa_adapter.nr = ANY_I2C_ISA_BUS;
-        isa_adapter.dev.parent = &platform_bus;
-        sprintf(isa_adapter.dev.bus_id, "i2c-%d", isa_adapter.nr);
-        isa_adapter.dev.release = &i2c_adapter_dev_release;
-        isa_adapter.dev.class = &i2c_adapter_class;
-        err = device_register(&isa_adapter.dev);
-        if (err) {
-                printk(KERN_ERR "i2c-isa: Failed to register device\n");
-                goto exit;
-        }
-
-        dev_dbg(&isa_adapter.dev, "%s registered\n", isa_adapter.name);
-
-        return 0;
-
-exit:
-        return err;
-}
-
-static void __exit i2c_isa_exit(void)
-{
-#ifdef DEBUG
-        struct list_head  *item, *_n;
-        struct i2c_client *client = NULL;
-#endif
-
-        /* There should be no more active client */
-#ifdef DEBUG
-        dev_dbg(&isa_adapter.dev, "Looking for clients\n");
-        list_for_each_safe(item, _n, &isa_adapter.clients) {
-                client = list_entry(item, struct i2c_client, list);
-                dev_err(&isa_adapter.dev, "Driver %s still has an active "
-                        "ISA client at 0x%x\n", client->driver->driver.name,
-                        client->addr);
-        }
-        if (client != NULL)
-                return;
-#endif
-
-        /* Clean up the sysfs representation */
-        dev_dbg(&isa_adapter.dev, "Unregistering from sysfs\n");
-        init_completion(&isa_adapter.dev_released);
-        device_unregister(&isa_adapter.dev);
-
-        /* Wait for sysfs to drop all references */
-        dev_dbg(&isa_adapter.dev, "Waiting for sysfs completion\n");
-        wait_for_completion(&isa_adapter.dev_released);
-
-        dev_dbg(&isa_adapter.dev, "%s unregistered\n", isa_adapter.name);
-}
-
-EXPORT_SYMBOL(i2c_isa_add_driver);
-EXPORT_SYMBOL(i2c_isa_del_driver);
-
-MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
-MODULE_DESCRIPTION("ISA bus access through i2c");
-MODULE_LICENSE("GPL");
-
-module_init(i2c_isa_init);
-module_exit(i2c_isa_exit);
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 435925eba437..931f34592be9 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -286,7 +286,6 @@ void i2c_adapter_dev_release(struct device *dev)
         struct i2c_adapter *adap = to_i2c_adapter(dev);
         complete(&adap->dev_released);
 }
-EXPORT_SYMBOL_GPL(i2c_adapter_dev_release);     /* exported to i2c-isa */
 
 static ssize_t
 show_adapter_name(struct device *dev, struct device_attribute *attr, char *buf)
@@ -305,7 +304,6 @@ struct class i2c_adapter_class = {
         .name                   = "i2c-adapter",
         .dev_attrs              = i2c_adapter_attrs,
 };
-EXPORT_SYMBOL_GPL(i2c_adapter_class);           /* exported to i2c-isa */
 
 static void i2c_scan_static_board_info(struct i2c_adapter *adapter)
 {