diff options
Diffstat (limited to 'drivers/gpio/gpio-xgene.c')
| -rw-r--r-- | drivers/gpio/gpio-xgene.c | 32 |
1 files changed, 10 insertions, 22 deletions
diff --git a/drivers/gpio/gpio-xgene.c b/drivers/gpio/gpio-xgene.c index 2918363884de..532b0df8a1f2 100644 --- a/drivers/gpio/gpio-xgene.c +++ b/drivers/gpio/gpio-xgene.c @@ -80,7 +80,10 @@ static int xgene_gpio_get_direction(struct gpio_chip *gc, unsigned int offset) bank_offset = GPIO_SET_DR_OFFSET + GPIO_BANK_OFFSET(offset); bit_offset = GPIO_BIT_OFFSET(offset); - return !!(ioread32(chip->base + bank_offset) & BIT(bit_offset)); + if (ioread32(chip->base + bank_offset) & BIT(bit_offset)) + return GPIO_LINE_DIRECTION_IN; + + return GPIO_LINE_DIRECTION_OUT; } static int xgene_gpio_dir_in(struct gpio_chip *gc, unsigned int offset) @@ -155,28 +158,16 @@ static SIMPLE_DEV_PM_OPS(xgene_gpio_pm, xgene_gpio_suspend, xgene_gpio_resume); static int xgene_gpio_probe(struct platform_device *pdev) { - struct resource *res; struct xgene_gpio *gpio; int err = 0; gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL); - if (!gpio) { - err = -ENOMEM; - goto err; - } + if (!gpio) + return -ENOMEM; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - err = -EINVAL; - goto err; - } - - gpio->base = devm_ioremap_nocache(&pdev->dev, res->start, - resource_size(res)); - if (!gpio->base) { - err = -ENOMEM; - goto err; - } + gpio->base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(gpio->base)) + return PTR_ERR(gpio->base); gpio->chip.ngpio = XGENE_MAX_GPIOS; @@ -196,14 +187,11 @@ static int xgene_gpio_probe(struct platform_device *pdev) if (err) { dev_err(&pdev->dev, "failed to register gpiochip.\n"); - goto err; + return err; } dev_info(&pdev->dev, "X-Gene GPIO driver registered.\n"); return 0; -err: - dev_err(&pdev->dev, "X-Gene GPIO driver registration failed.\n"); - return err; } static const struct of_device_id xgene_gpio_of_match[] = { |