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gpio: tb10x: Create local helper variables 

Create a local struct device *dev helper variable to make the code
easier to read.

Most GPIO drivers use "np" (node pointer) rather than "dn" (device node)
to point to the device tree node. Let's follow this convention.

Cc: linux-snps-arc@lists.infradead.org
Acked-by: Christian Ruppert <christian.ruppert@alitech.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2018-08-06 16:30:12 +02:00
parent 5b394b2ddf
commit d28af35b0c
1 changed files with 14 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/gpio/gpio-tb10x.c
View File

@ -169,29 +169,30 @@ static int tb10x_gpio_probe(struct platform_device *pdev)
{
struct tb10x_gpio *tb10x_gpio;
struct resource *mem;
struct device_node *dn = pdev->dev.of_node;
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
int ret = -EBUSY;
u32 ngpio;
if (!dn)
if (!np)
return -EINVAL;
if (of_property_read_u32(dn, "abilis,ngpio", &ngpio))
if (of_property_read_u32(np, "abilis,ngpio", &ngpio))
return -EINVAL;
tb10x_gpio = devm_kzalloc(&pdev->dev, sizeof(*tb10x_gpio), GFP_KERNEL);
tb10x_gpio = devm_kzalloc(dev, sizeof(*tb10x_gpio), GFP_KERNEL);
if (tb10x_gpio == NULL)
return -ENOMEM;
spin_lock_init(&tb10x_gpio->spinlock);
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
tb10x_gpio->base = devm_ioremap_resource(&pdev->dev, mem);
tb10x_gpio->base = devm_ioremap_resource(dev, mem);
if (IS_ERR(tb10x_gpio->base))
return PTR_ERR(tb10x_gpio->base);
tb10x_gpio->gc.label =
devm_kasprintf(&pdev->dev, GFP_KERNEL, "%pOF", pdev->dev.of_node);
tb10x_gpio->gc.label =
devm_kasprintf(dev, GFP_KERNEL, "%pOF", pdev->dev.of_node);
if (!tb10x_gpio->gc.label)
return -ENOMEM;
@ -210,31 +211,31 @@ static int tb10x_gpio_probe(struct platform_device *pdev)
ret = devm_gpiochip_add_data(&pdev->dev, &tb10x_gpio->gc, tb10x_gpio);
if (ret < 0) {
dev_err(&pdev->dev, "Could not add gpiochip.\n");
dev_err(dev, "Could not add gpiochip.\n");
return ret;
}
platform_set_drvdata(pdev, tb10x_gpio);
if (of_find_property(dn, "interrupt-controller", NULL)) {
if (of_find_property(np, "interrupt-controller", NULL)) {
struct irq_chip_generic *gc;
ret = platform_get_irq(pdev, 0);
if (ret < 0) {
dev_err(&pdev->dev, "No interrupt specified.\n");
dev_err(dev, "No interrupt specified.\n");
return ret;
}
tb10x_gpio->gc.to_irq = tb10x_gpio_to_irq;
tb10x_gpio->irq = ret;
ret = devm_request_irq(&pdev->dev, ret, tb10x_gpio_irq_cascade,
ret = devm_request_irq(dev, ret, tb10x_gpio_irq_cascade,
IRQF_TRIGGER_NONE | IRQF_SHARED,
dev_name(&pdev->dev), tb10x_gpio);
dev_name(dev), tb10x_gpio);
if (ret != 0)
return ret;
tb10x_gpio->domain = irq_domain_add_linear(dn,
tb10x_gpio->domain = irq_domain_add_linear(np,
tb10x_gpio->gc.ngpio,
&irq_generic_chip_ops, NULL);
if (!tb10x_gpio->domain) {