diff options
| -rw-r--r-- | drivers/gpio/gpio-104-idio-16.c | 37 |
1 files changed, 18 insertions, 19 deletions
diff --git a/drivers/gpio/gpio-104-idio-16.c b/drivers/gpio/gpio-104-idio-16.c index 4e8adee4d8c2..81b6904bdfe6 100644 --- a/drivers/gpio/gpio-104-idio-16.c +++ b/drivers/gpio/gpio-104-idio-16.c @@ -80,21 +80,21 @@ static struct idio_16_gpio *to_idio16gpio(struct gpio_chip *gc) static int idio_16_gpio_get(struct gpio_chip *chip, unsigned offset) { struct idio_16_gpio *const idio16gpio = to_idio16gpio(chip); - const unsigned BIT_MASK = 1U << (offset-16); + const unsigned mask = BIT(offset-16); if (offset < 16) return -EINVAL; if (offset < 24) - return !!(inb(idio16gpio->base + 1) & BIT_MASK); + return !!(inb(idio16gpio->base + 1) & mask); - return !!(inb(idio16gpio->base + 5) & (BIT_MASK>>8)); + return !!(inb(idio16gpio->base + 5) & (mask>>8)); } static void idio_16_gpio_set(struct gpio_chip *chip, unsigned offset, int value) { struct idio_16_gpio *const idio16gpio = to_idio16gpio(chip); - const unsigned BIT_MASK = 1U << offset; + const unsigned mask = BIT(offset); unsigned long flags; if (offset > 15) @@ -103,9 +103,9 @@ static void idio_16_gpio_set(struct gpio_chip *chip, unsigned offset, int value) spin_lock_irqsave(&idio16gpio->lock, flags); if (value) - idio16gpio->out_state |= BIT_MASK; + idio16gpio->out_state |= mask; else - idio16gpio->out_state &= ~BIT_MASK; + idio16gpio->out_state &= ~mask; if (offset > 7) outb(idio16gpio->out_state >> 8, idio16gpio->base + 4); @@ -200,25 +200,24 @@ static int __init idio_16_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct idio_16_gpio *idio16gpio; + const unsigned base = idio_16_base; + const unsigned extent = 8; + const char *const name = dev_name(dev); int err; - - const unsigned BASE = idio_16_base; - const unsigned EXTENT = 8; - const unsigned IRQ = idio_16_irq; - const char *const NAME = dev_name(dev); + const unsigned irq = idio_16_irq; idio16gpio = devm_kzalloc(dev, sizeof(*idio16gpio), GFP_KERNEL); if (!idio16gpio) return -ENOMEM; - if (!request_region(BASE, EXTENT, NAME)) { + if (!request_region(base, extent, name)) { dev_err(dev, "Unable to lock %s port addresses (0x%X-0x%X)\n", - NAME, BASE, BASE + EXTENT); + name, base, base + extent); err = -EBUSY; goto err_lock_io_port; } - idio16gpio->chip.label = NAME; + idio16gpio->chip.label = name; idio16gpio->chip.parent = dev; idio16gpio->chip.owner = THIS_MODULE; idio16gpio->chip.base = -1; @@ -228,9 +227,9 @@ static int __init idio_16_probe(struct platform_device *pdev) idio16gpio->chip.direction_output = idio_16_gpio_direction_output; idio16gpio->chip.get = idio_16_gpio_get; idio16gpio->chip.set = idio_16_gpio_set; - idio16gpio->base = BASE; - idio16gpio->extent = EXTENT; - idio16gpio->irq = IRQ; + idio16gpio->base = base; + idio16gpio->extent = extent; + idio16gpio->irq = irq; idio16gpio->out_state = 0xFFFF; spin_lock_init(&idio16gpio->lock); @@ -250,7 +249,7 @@ static int __init idio_16_probe(struct platform_device *pdev) goto err_gpiochip_irqchip_add; } - err = request_irq(IRQ, idio_16_irq_handler, 0, NAME, idio16gpio); + err = request_irq(irq, idio_16_irq_handler, 0, name, idio16gpio); if (err) { dev_err(dev, "IRQ handler registering failed (%d)\n", err); goto err_request_irq; @@ -262,7 +261,7 @@ err_request_irq: err_gpiochip_irqchip_add: gpiochip_remove(&idio16gpio->chip); err_gpio_register: - release_region(BASE, EXTENT); + release_region(base, extent); err_lock_io_port: return err; } |