diff options
Diffstat (limited to 'drivers/gpio/gpio-pxa.c')
| -rw-r--r-- | drivers/gpio/gpio-pxa.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c index df2199dd149..42e6e64f212 100644 --- a/drivers/gpio/gpio-pxa.c +++ b/drivers/gpio/gpio-pxa.c @@ -263,7 +263,8 @@ static int pxa_gpio_direction_output(struct gpio_chip *chip, static int pxa_gpio_get(struct gpio_chip *chip, unsigned offset) { - return readl_relaxed(gpio_chip_base(chip) + GPLR_OFFSET) & (1 << offset); + u32 gplr = readl_relaxed(gpio_chip_base(chip) + GPLR_OFFSET); + return !!(gplr & (1 << offset)); } static void pxa_gpio_set(struct gpio_chip *chip, unsigned offset, int value) @@ -524,8 +525,8 @@ const struct irq_domain_ops pxa_irq_domain_ops = { static int pxa_gpio_probe_dt(struct platform_device *pdev) { - int ret, nr_gpios; - struct device_node *prev, *next, *np = pdev->dev.of_node; + int ret = 0, nr_gpios; + struct device_node *np = pdev->dev.of_node; const struct of_device_id *of_id = of_match_device(pxa_gpio_dt_ids, &pdev->dev); const struct pxa_gpio_id *gpio_id; @@ -537,20 +538,13 @@ static int pxa_gpio_probe_dt(struct platform_device *pdev) gpio_id = of_id->data; gpio_type = gpio_id->type; - next = of_get_next_child(np, NULL); - prev = next; - if (!next) { - dev_err(&pdev->dev, "Failed to find child gpio node\n"); - ret = -EINVAL; - goto err; - } - of_node_put(prev); nr_gpios = gpio_id->gpio_nums; pxa_last_gpio = nr_gpios - 1; irq_base = irq_alloc_descs(-1, 0, nr_gpios, 0); if (irq_base < 0) { dev_err(&pdev->dev, "Failed to allocate IRQ numbers\n"); + ret = irq_base; goto err; } domain = irq_domain_add_legacy(np, nr_gpios, irq_base, 0, |