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gpio: lpc18xx: add struct device local variable

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This is a non-functional change, it simplifies multiple access to
'struct device' pointer derived from a platform device pointer,
the new local variable will also be used in the following changes.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Vladimir Zapolskiy 2018-11-29 00:28:47 +02:00 committed by Linus Walleij
parent 9b34d05aa9
commit 9dd1a30cb4
1 changed files with 8 additions and 7 deletions
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15
drivers/gpio/gpio-lpc18xx.c
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@ -89,11 +89,12 @@ static const struct gpio_chip lpc18xx_chip = {
static int lpc18xx_gpio_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct lpc18xx_gpio_chip *gc;
struct resource *res;
int ret;
gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
gc = devm_kzalloc(dev, sizeof(*gc), GFP_KERNEL);
if (!gc)
return -ENOMEM;
@ -101,29 +102,29 @@ static int lpc18xx_gpio_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, gc);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
gc->base = devm_ioremap_resource(&pdev->dev, res);
gc->base = devm_ioremap_resource(dev, res);
if (IS_ERR(gc->base))
return PTR_ERR(gc->base);
gc->clk = devm_clk_get(&pdev->dev, NULL);
gc->clk = devm_clk_get(dev, NULL);
if (IS_ERR(gc->clk)) {
dev_err(&pdev->dev, "input clock not found\n");
dev_err(dev, "input clock not found\n");
return PTR_ERR(gc->clk);
}
ret = clk_prepare_enable(gc->clk);
if (ret) {
dev_err(&pdev->dev, "unable to enable clock\n");
dev_err(dev, "unable to enable clock\n");
return ret;
}
spin_lock_init(&gc->lock);
gc->gpio.parent = &pdev->dev;
gc->gpio.parent = dev;
ret = gpiochip_add_data(&gc->gpio, gc);
if (ret) {
dev_err(&pdev->dev, "failed to add gpio chip\n");
dev_err(dev, "failed to add gpio chip\n");
clk_disable_unprepare(gc->clk);
return ret;
}