i2c: ixp2000: remove driver
The platform is removed, so there are no users of this driver. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
This commit is contained in:
parent
a092de11bb
commit
6923229380
|
@ -445,20 +445,6 @@ config I2C_IOP3XX
|
|||
This driver can also be built as a module. If so, the module
|
||||
will be called i2c-iop3xx.
|
||||
|
||||
config I2C_IXP2000
|
||||
tristate "IXP2000 GPIO-Based I2C Interface (DEPRECATED)"
|
||||
depends on ARCH_IXP2000
|
||||
select I2C_ALGOBIT
|
||||
help
|
||||
Say Y here if you have an Intel IXP2000 (2400, 2800, 2850) based
|
||||
system and are using GPIO lines for an I2C bus.
|
||||
|
||||
This support is also available as a module. If so, the module
|
||||
will be called i2c-ixp2000.
|
||||
|
||||
This driver is deprecated and will be dropped soon. Use i2c-gpio
|
||||
instead.
|
||||
|
||||
config I2C_MPC
|
||||
tristate "MPC107/824x/85xx/512x/52xx/83xx/86xx"
|
||||
depends on PPC
|
||||
|
|
|
@ -44,7 +44,6 @@ obj-$(CONFIG_I2C_IBM_IIC) += i2c-ibm_iic.o
|
|||
obj-$(CONFIG_I2C_IMX) += i2c-imx.o
|
||||
obj-$(CONFIG_I2C_INTEL_MID) += i2c-intel-mid.o
|
||||
obj-$(CONFIG_I2C_IOP3XX) += i2c-iop3xx.o
|
||||
obj-$(CONFIG_I2C_IXP2000) += i2c-ixp2000.o
|
||||
obj-$(CONFIG_I2C_MPC) += i2c-mpc.o
|
||||
obj-$(CONFIG_I2C_MV64XXX) += i2c-mv64xxx.o
|
||||
obj-$(CONFIG_I2C_MXS) += i2c-mxs.o
|
||||
|
|
|
@ -1,157 +0,0 @@
|
|||
/*
|
||||
* drivers/i2c/busses/i2c-ixp2000.c
|
||||
*
|
||||
* I2C adapter for IXP2000 systems using GPIOs for I2C bus
|
||||
*
|
||||
* Author: Deepak Saxena <dsaxena@plexity.net>
|
||||
* Based on IXDP2400 code by: Naeem M. Afzal <naeem.m.afzal@intel.com>
|
||||
* Made generic by: Jeff Daly <jeffrey.daly@intel.com>
|
||||
*
|
||||
* Copyright (c) 2003-2004 MontaVista Software Inc.
|
||||
*
|
||||
* This file is licensed under the terms of the GNU General Public
|
||||
* License version 2. This program is licensed "as is" without any
|
||||
* warranty of any kind, whether express or implied.
|
||||
*
|
||||
* From Jeff Daly:
|
||||
*
|
||||
* I2C adapter driver for Intel IXDP2xxx platforms. This should work for any
|
||||
* IXP2000 platform if it uses the HW GPIO in the same manner. Basically,
|
||||
* SDA and SCL GPIOs have external pullups. Setting the respective GPIO to
|
||||
* an input will make the signal a '1' via the pullup. Setting them to
|
||||
* outputs will pull them down.
|
||||
*
|
||||
* The GPIOs are open drain signals and are used as configuration strap inputs
|
||||
* during power-up so there's generally a buffer on the board that needs to be
|
||||
* 'enabled' to drive the GPIOs.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/i2c-algo-bit.h>
|
||||
#include <linux/slab.h>
|
||||
|
||||
#include <mach/hardware.h> /* Pick up IXP2000-specific bits */
|
||||
#include <mach/gpio-ixp2000.h>
|
||||
|
||||
static inline int ixp2000_scl_pin(void *data)
|
||||
{
|
||||
return ((struct ixp2000_i2c_pins*)data)->scl_pin;
|
||||
}
|
||||
|
||||
static inline int ixp2000_sda_pin(void *data)
|
||||
{
|
||||
return ((struct ixp2000_i2c_pins*)data)->sda_pin;
|
||||
}
|
||||
|
||||
|
||||
static void ixp2000_bit_setscl(void *data, int val)
|
||||
{
|
||||
int i = 5000;
|
||||
|
||||
if (val) {
|
||||
gpio_line_config(ixp2000_scl_pin(data), GPIO_IN);
|
||||
while(!gpio_line_get(ixp2000_scl_pin(data)) && i--);
|
||||
} else {
|
||||
gpio_line_config(ixp2000_scl_pin(data), GPIO_OUT);
|
||||
}
|
||||
}
|
||||
|
||||
static void ixp2000_bit_setsda(void *data, int val)
|
||||
{
|
||||
if (val) {
|
||||
gpio_line_config(ixp2000_sda_pin(data), GPIO_IN);
|
||||
} else {
|
||||
gpio_line_config(ixp2000_sda_pin(data), GPIO_OUT);
|
||||
}
|
||||
}
|
||||
|
||||
static int ixp2000_bit_getscl(void *data)
|
||||
{
|
||||
return gpio_line_get(ixp2000_scl_pin(data));
|
||||
}
|
||||
|
||||
static int ixp2000_bit_getsda(void *data)
|
||||
{
|
||||
return gpio_line_get(ixp2000_sda_pin(data));
|
||||
}
|
||||
|
||||
struct ixp2000_i2c_data {
|
||||
struct ixp2000_i2c_pins *gpio_pins;
|
||||
struct i2c_adapter adapter;
|
||||
struct i2c_algo_bit_data algo_data;
|
||||
};
|
||||
|
||||
static int ixp2000_i2c_remove(struct platform_device *plat_dev)
|
||||
{
|
||||
struct ixp2000_i2c_data *drv_data = platform_get_drvdata(plat_dev);
|
||||
|
||||
platform_set_drvdata(plat_dev, NULL);
|
||||
|
||||
i2c_del_adapter(&drv_data->adapter);
|
||||
|
||||
kfree(drv_data);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int ixp2000_i2c_probe(struct platform_device *plat_dev)
|
||||
{
|
||||
int err;
|
||||
struct ixp2000_i2c_pins *gpio = plat_dev->dev.platform_data;
|
||||
struct ixp2000_i2c_data *drv_data =
|
||||
kzalloc(sizeof(struct ixp2000_i2c_data), GFP_KERNEL);
|
||||
|
||||
if (!drv_data)
|
||||
return -ENOMEM;
|
||||
drv_data->gpio_pins = gpio;
|
||||
|
||||
drv_data->algo_data.data = gpio;
|
||||
drv_data->algo_data.setsda = ixp2000_bit_setsda;
|
||||
drv_data->algo_data.setscl = ixp2000_bit_setscl;
|
||||
drv_data->algo_data.getsda = ixp2000_bit_getsda;
|
||||
drv_data->algo_data.getscl = ixp2000_bit_getscl;
|
||||
drv_data->algo_data.udelay = 6;
|
||||
drv_data->algo_data.timeout = HZ;
|
||||
|
||||
strlcpy(drv_data->adapter.name, plat_dev->dev.driver->name,
|
||||
sizeof(drv_data->adapter.name));
|
||||
drv_data->adapter.algo_data = &drv_data->algo_data,
|
||||
|
||||
drv_data->adapter.dev.parent = &plat_dev->dev;
|
||||
|
||||
gpio_line_config(gpio->sda_pin, GPIO_IN);
|
||||
gpio_line_config(gpio->scl_pin, GPIO_IN);
|
||||
gpio_line_set(gpio->scl_pin, 0);
|
||||
gpio_line_set(gpio->sda_pin, 0);
|
||||
|
||||
if ((err = i2c_bit_add_bus(&drv_data->adapter)) != 0) {
|
||||
dev_err(&plat_dev->dev, "Could not install, error %d\n", err);
|
||||
kfree(drv_data);
|
||||
return err;
|
||||
}
|
||||
|
||||
platform_set_drvdata(plat_dev, drv_data);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver ixp2000_i2c_driver = {
|
||||
.probe = ixp2000_i2c_probe,
|
||||
.remove = ixp2000_i2c_remove,
|
||||
.driver = {
|
||||
.name = "IXP2000-I2C",
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
};
|
||||
|
||||
module_platform_driver(ixp2000_i2c_driver);
|
||||
|
||||
MODULE_AUTHOR ("Deepak Saxena <dsaxena@plexity.net>");
|
||||
MODULE_DESCRIPTION("IXP2000 GPIO-based I2C bus driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_ALIAS("platform:IXP2000-I2C");
|
||||
|
Loading…
Reference in a new issue