diff options
Diffstat (limited to 'drivers/gpio/gpio-bcm-kona.c')
| -rw-r--r-- | drivers/gpio/gpio-bcm-kona.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c index 9fa6d3a967d2..baee8c3f06ad 100644 --- a/drivers/gpio/gpio-bcm-kona.c +++ b/drivers/gpio/gpio-bcm-kona.c @@ -19,7 +19,6 @@ #include <linux/io.h> #include <linux/gpio/driver.h> #include <linux/of_device.h> -#include <linux/of_irq.h> #include <linux/init.h> #include <linux/irqdomain.h> #include <linux/irqchip/chained_irq.h> @@ -127,7 +126,7 @@ static int bcm_kona_gpio_get_dir(struct gpio_chip *chip, unsigned gpio) u32 val; val = readl(reg_base + GPIO_CONTROL(gpio)) & GPIO_GPCTR0_IOTR_MASK; - return !!val; + return val ? GPIO_LINE_DIRECTION_IN : GPIO_LINE_DIRECTION_OUT; } static void bcm_kona_gpio_set(struct gpio_chip *chip, unsigned gpio, int value) @@ -144,7 +143,7 @@ static void bcm_kona_gpio_set(struct gpio_chip *chip, unsigned gpio, int value) raw_spin_lock_irqsave(&kona_gpio->lock, flags); /* this function only applies to output pin */ - if (bcm_kona_gpio_get_dir(chip, gpio) == 1) + if (bcm_kona_gpio_get_dir(chip, gpio) == GPIO_LINE_DIRECTION_IN) goto out; reg_offset = value ? GPIO_OUT_SET(bank_id) : GPIO_OUT_CLEAR(bank_id); @@ -170,7 +169,7 @@ static int bcm_kona_gpio_get(struct gpio_chip *chip, unsigned gpio) reg_base = kona_gpio->reg_base; raw_spin_lock_irqsave(&kona_gpio->lock, flags); - if (bcm_kona_gpio_get_dir(chip, gpio) == 1) + if (bcm_kona_gpio_get_dir(chip, gpio) == GPIO_LINE_DIRECTION_IN) reg_offset = GPIO_IN_STATUS(bank_id); else reg_offset = GPIO_OUT_STATUS(bank_id); @@ -586,11 +585,18 @@ static int bcm_kona_gpio_probe(struct platform_device *pdev) kona_gpio->gpio_chip = template_chip; chip = &kona_gpio->gpio_chip; - kona_gpio->num_bank = of_irq_count(dev->of_node); - if (kona_gpio->num_bank == 0) { + ret = platform_irq_count(pdev); + if (!ret) { dev_err(dev, "Couldn't determine # GPIO banks\n"); return -ENOENT; + } else if (ret < 0) { + if (ret != -EPROBE_DEFER) + dev_err(dev, "Couldn't determine GPIO banks: (%pe)\n", + ERR_PTR(ret)); + return ret; } + kona_gpio->num_bank = ret; + if (kona_gpio->num_bank > GPIO_MAX_BANK_NUM) { dev_err(dev, "Too many GPIO banks configured (max=%d)\n", GPIO_MAX_BANK_NUM); |
