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spi: clps711x: Use devm_gpio_request() 

This patch replaces gpio_request() with devm_ API.
As a result this simplifies error path and eliminates "remove"
function.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Alexander Shiyan 2014-01-10 17:02:05 +04:00 committed by Mark Brown
parent 6ce4eac1f6
commit 989847967c
1 changed files with 2 additions and 20 deletions
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22
drivers/spi/spi-clps711x.c
View File

@ -1,7 +1,7 @@
/*
* CLPS711X SPI bus driver
*
* Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
* Copyright (C) 2012-2014 Alexander Shiyan <shc_work@mail.ru>
*
* 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
@ -198,7 +198,7 @@ static int spi_clps711x_probe(struct platform_device *pdev)
ret = -EINVAL;
goto err_out;
}
if (gpio_request(hw->chipselect[i], DRIVER_NAME)) {
if (devm_gpio_request(&pdev->dev, hw->chipselect[i], NULL)) {
dev_err(&pdev->dev, "Can't get CS GPIO %i\n", i);
ret = -EINVAL;
goto err_out;
@ -240,35 +240,17 @@ static int spi_clps711x_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "Failed to register master\n");
err_out:
while (--i >= 0)
if (gpio_is_valid(hw->chipselect[i]))
gpio_free(hw->chipselect[i]);
spi_master_put(master);
return ret;
}
static int spi_clps711x_remove(struct platform_device *pdev)
{
int i;
struct spi_master *master = platform_get_drvdata(pdev);
struct spi_clps711x_data *hw = spi_master_get_devdata(master);
for (i = 0; i < master->num_chipselect; i++)
if (gpio_is_valid(hw->chipselect[i]))
gpio_free(hw->chipselect[i]);
return 0;
}
static struct platform_driver clps711x_spi_driver = {
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
},
.probe = spi_clps711x_probe,
.remove = spi_clps711x_remove,
};
module_platform_driver(clps711x_spi_driver);