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gpio: 74x164: Remove non-DT support

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Commit 20bc4d5d56
(gpio: 74x164: Add support for the daisy-chaining) introduce check
for DT for the driver, so driver cannot be used without DT.
There are no in-tree users of this driver, so remove non-DT support
completely.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Alexander Shiyan 2013-12-07 14:08:22 +04:00 committed by Linus Walleij
parent f57f98a6c0
commit 61e7380403
3 changed files with 4 additions and 25 deletions
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6
drivers/gpio/Kconfig
View File

@ -714,10 +714,10 @@ config GPIO_MC33880
config GPIO_74X164
tristate "74x164 serial-in/parallel-out 8-bits shift register"
depends on SPI_MASTER
depends on SPI_MASTER && OF
help
Platform driver for 74x164 compatible serial-in/parallel-out
8-outputs shift registers. This driver can be used to provide access
Driver for 74x164 compatible serial-in/parallel-out 8-outputs
shift registers. This driver can be used to provide access
to more gpio outputs.
comment "AC97 GPIO expanders:"

14
drivers/gpio/gpio-74x164.c
View File

@ -12,7 +12,6 @@
#include <linux/init.h>
#include <linux/mutex.h>
#include <linux/spi/spi.h>
#include <linux/spi/74x164.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <linux/slab.h>
@ -108,14 +107,8 @@ static int gen_74x164_direction_output(struct gpio_chip *gc,
static int gen_74x164_probe(struct spi_device *spi)
{
struct gen_74x164_chip *chip;
struct gen_74x164_chip_platform_data *pdata;
int ret;
if (!spi->dev.of_node) {
dev_err(&spi->dev, "No device tree data available.\n");
return -EINVAL;
}
/*
* bits_per_word cannot be configured in platform data
*/
@ -129,12 +122,6 @@ static int gen_74x164_probe(struct spi_device *spi)
if (!chip)
return -ENOMEM;
pdata = dev_get_platdata(&spi->dev);
if (pdata && pdata->base)
chip->gpio_chip.base = pdata->base;
else
chip->gpio_chip.base = -1;
mutex_init(&chip->lock);
spi_set_drvdata(spi, chip);
@ -145,6 +132,7 @@ static int gen_74x164_probe(struct spi_device *spi)
chip->gpio_chip.direction_output = gen_74x164_direction_output;
chip->gpio_chip.get = gen_74x164_get_value;
chip->gpio_chip.set = gen_74x164_set_value;
chip->gpio_chip.base = -1;
if (of_property_read_u32(spi->dev.of_node, "registers-number", &chip->registers)) {
dev_err(&spi->dev, "Missing registers-number property in the DT.\n");

9
include/linux/spi/74x164.h
View File

@ -1,9 +0,0 @@
#ifndef LINUX_SPI_74X164_H
#define LINUX_SPI_74X164_H
struct gen_74x164_chip_platform_data {
/* number assigned to the first GPIO */
unsigned base;
};
#endif