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i2c: i2c-mux-gpio: rename i2c-gpio-mux to i2c-mux-gpio 

The rename did the wrong thing for this documentation file all those
years ago. Fix that as well as the neglected rename of the platform
data structure.

Fixes: e7065e20d9 ("i2c: Rename last mux driver to standard pattern")
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Peter Rosin 2017-02-07 22:41:55 +01:00 committed by Wolfram Sang
parent 45345e9a85
commit 6b66a6f27e
1 changed files with 10 additions and 10 deletions
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20
Documentation/i2c/muxes/i2c-mux-gpio
View File

@ -1,11 +1,11 @@
Kernel driver i2c-gpio-mux Kernel driver i2c-mux-gpio
Author: Peter Korsgaard <peter.korsgaard@barco.com> Author: Peter Korsgaard <peter.korsgaard@barco.com>
Description Description
----------- -----------
i2c-gpio-mux is an i2c mux driver providing access to I2C bus segments i2c-mux-gpio is an i2c mux driver providing access to I2C bus segments
from a master I2C bus and a hardware MUX controlled through GPIO pins. from a master I2C bus and a hardware MUX controlled through GPIO pins.
E.G.: E.G.:
@ -26,16 +26,16 @@ according to the settings of the GPIO pins 1..N.
Usage Usage
----- -----
i2c-gpio-mux uses the platform bus, so you need to provide a struct i2c-mux-gpio uses the platform bus, so you need to provide a struct
platform_device with the platform_data pointing to a struct platform_device with the platform_data pointing to a struct
gpio_i2cmux_platform_data with the I2C adapter number of the master i2c_mux_gpio_platform_data with the I2C adapter number of the master
bus, the number of bus segments to create and the GPIO pins used bus, the number of bus segments to create and the GPIO pins used
to control it. See include/linux/i2c-gpio-mux.h for details. to control it. See include/linux/i2c-mux-gpio.h for details.
E.G. something like this for a MUX providing 4 bus segments E.G. something like this for a MUX providing 4 bus segments
controlled through 3 GPIO pins: controlled through 3 GPIO pins:
#include <linux/i2c-gpio-mux.h> #include <linux/i2c-mux-gpio.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
static const unsigned myboard_gpiomux_gpios[] = { static const unsigned myboard_gpiomux_gpios[] = {
@ -46,7 +46,7 @@ static const unsigned myboard_gpiomux_values[] = {
0, 1, 2, 3 0, 1, 2, 3
}; };
static struct gpio_i2cmux_platform_data myboard_i2cmux_data = { static struct i2c_mux_gpio_platform_data myboard_i2cmux_data = {
.parent = 1, .parent = 1,
.base_nr = 2, /* optional */ .base_nr = 2, /* optional */
.values = myboard_gpiomux_values, .values = myboard_gpiomux_values,
@ -57,7 +57,7 @@ static struct gpio_i2cmux_platform_data myboard_i2cmux_data = {
}; };
static struct platform_device myboard_i2cmux = { static struct platform_device myboard_i2cmux = {
.name = "i2c-gpio-mux", .name = "i2c-mux-gpio",
.id = 0, .id = 0,
.dev = { .dev = {
.platform_data = &myboard_i2cmux_data, .platform_data = &myboard_i2cmux_data,
@ -66,14 +66,14 @@ static struct platform_device myboard_i2cmux = {
If you don't know the absolute GPIO pin numbers at registration time, If you don't know the absolute GPIO pin numbers at registration time,
you can instead provide a chip name (.chip_name) and relative GPIO pin you can instead provide a chip name (.chip_name) and relative GPIO pin
numbers, and the i2c-gpio-mux driver will do the work for you, numbers, and the i2c-mux-gpio driver will do the work for you,
including deferred probing if the GPIO chip isn't immediately including deferred probing if the GPIO chip isn't immediately
available. available.
Device Registration Device Registration
------------------- -------------------
When registering your i2c-gpio-mux device, you should pass the number When registering your i2c-mux-gpio device, you should pass the number
of any GPIO pin it uses as the device ID. This guarantees that every of any GPIO pin it uses as the device ID. This guarantees that every
instance has a different ID. instance has a different ID.