diff options
Diffstat (limited to 'drivers/gpio/gpio-lynxpoint.c')
| -rw-r--r-- | drivers/gpio/gpio-lynxpoint.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/drivers/gpio/gpio-lynxpoint.c b/drivers/gpio/gpio-lynxpoint.c index 66b18535b5a..2bea89b7250 100644 --- a/drivers/gpio/gpio-lynxpoint.c +++ b/drivers/gpio/gpio-lynxpoint.c @@ -188,7 +188,7 @@ static int lp_irq_type(struct irq_data *d, unsigned type) static int lp_gpio_get(struct gpio_chip *chip, unsigned offset) { unsigned long reg = lp_gpio_reg(chip, offset, LP_CONFIG1); - return inl(reg) & IN_LVL_BIT; + return !!(inl(reg) & IN_LVL_BIT); } static void lp_gpio_set(struct gpio_chip *chip, unsigned offset, int value) @@ -301,23 +301,23 @@ static void lp_irq_disable(struct irq_data *d) spin_unlock_irqrestore(&lg->lock, flags); } -static unsigned int lp_irq_startup(struct irq_data *d) +static int lp_irq_reqres(struct irq_data *d) { struct lp_gpio *lg = irq_data_get_irq_chip_data(d); - if (gpio_lock_as_irq(&lg->chip, irqd_to_hwirq(d))) + if (gpio_lock_as_irq(&lg->chip, irqd_to_hwirq(d))) { dev_err(lg->chip.dev, "unable to lock HW IRQ %lu for IRQ\n", irqd_to_hwirq(d)); - lp_irq_enable(d); + return -EINVAL; + } return 0; } -static void lp_irq_shutdown(struct irq_data *d) +static void lp_irq_relres(struct irq_data *d) { struct lp_gpio *lg = irq_data_get_irq_chip_data(d); - lp_irq_disable(d); gpio_unlock_as_irq(&lg->chip, irqd_to_hwirq(d)); } @@ -328,8 +328,8 @@ static struct irq_chip lp_irqchip = { .irq_enable = lp_irq_enable, .irq_disable = lp_irq_disable, .irq_set_type = lp_irq_type, - .irq_startup = lp_irq_startup, - .irq_shutdown = lp_irq_shutdown, + .irq_request_resources = lp_irq_reqres, + .irq_release_resources = lp_irq_relres, .flags = IRQCHIP_SKIP_SET_WAKE, }; @@ -375,10 +375,8 @@ static int lp_gpio_probe(struct platform_device *pdev) int ret = -ENODEV; lg = devm_kzalloc(dev, sizeof(struct lp_gpio), GFP_KERNEL); - if (!lg) { - dev_err(dev, "can't allocate lp_gpio chip data\n"); + if (!lg) return -ENOMEM; - } lg->pdev = pdev; platform_set_drvdata(pdev, lg); |
