diff options
Diffstat (limited to 'drivers/gpio/gpio-omap.c')
| -rw-r--r-- | drivers/gpio/gpio-omap.c | 67 |
1 files changed, 34 insertions, 33 deletions
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index ff5d54dc9aee..628a1328e503 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -549,9 +549,10 @@ static void omap_clear_gpio_irqbank(struct gpio_bank *bank, int gpio_mask) readl_relaxed(reg); } -static inline void omap_clear_gpio_irqstatus(struct gpio_bank *bank, int gpio) +static inline void omap_clear_gpio_irqstatus(struct gpio_bank *bank, + unsigned offset) { - omap_clear_gpio_irqbank(bank, GPIO_BIT(bank, gpio)); + omap_clear_gpio_irqbank(bank, BIT(offset)); } static u32 omap_get_gpio_irqbank_mask(struct gpio_bank *bank) @@ -612,13 +613,13 @@ static void omap_disable_gpio_irqbank(struct gpio_bank *bank, int gpio_mask) writel_relaxed(l, reg); } -static inline void omap_set_gpio_irqenable(struct gpio_bank *bank, int gpio, - int enable) +static inline void omap_set_gpio_irqenable(struct gpio_bank *bank, + unsigned offset, int enable) { if (enable) - omap_enable_gpio_irqbank(bank, GPIO_BIT(bank, gpio)); + omap_enable_gpio_irqbank(bank, BIT(offset)); else - omap_disable_gpio_irqbank(bank, GPIO_BIT(bank, gpio)); + omap_disable_gpio_irqbank(bank, BIT(offset)); } /* @@ -629,14 +630,16 @@ static inline void omap_set_gpio_irqenable(struct gpio_bank *bank, int gpio, * enabled. When system is suspended, only selected GPIO interrupts need * to have wake-up enabled. */ -static int omap_set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable) +static int omap_set_gpio_wakeup(struct gpio_bank *bank, unsigned offset, + int enable) { - u32 gpio_bit = GPIO_BIT(bank, gpio); + u32 gpio_bit = BIT(offset); unsigned long flags; if (bank->non_wakeup_gpios & gpio_bit) { dev_err(bank->dev, - "Unable to modify wakeup on non-wakeup GPIO%d\n", gpio); + "Unable to modify wakeup on non-wakeup GPIO%d\n", + offset); return -EINVAL; } @@ -652,22 +655,22 @@ static int omap_set_gpio_wakeup(struct gpio_bank *bank, int gpio, int enable) return 0; } -static void omap_reset_gpio(struct gpio_bank *bank, int gpio) +static void omap_reset_gpio(struct gpio_bank *bank, unsigned offset) { - omap_set_gpio_direction(bank, GPIO_INDEX(bank, gpio), 1); - omap_set_gpio_irqenable(bank, gpio, 0); - omap_clear_gpio_irqstatus(bank, gpio); - omap_set_gpio_triggering(bank, GPIO_INDEX(bank, gpio), IRQ_TYPE_NONE); - omap_clear_gpio_debounce(bank, GPIO_INDEX(bank, gpio)); + omap_set_gpio_direction(bank, offset, 1); + omap_set_gpio_irqenable(bank, offset, 0); + omap_clear_gpio_irqstatus(bank, offset); + omap_set_gpio_triggering(bank, offset, IRQ_TYPE_NONE); + omap_clear_gpio_debounce(bank, offset); } /* Use disable_irq_wake() and enable_irq_wake() functions from drivers */ static int omap_gpio_wake_enable(struct irq_data *d, unsigned int enable) { struct gpio_bank *bank = omap_irq_data_get_bank(d); - unsigned int gpio = omap_irq_to_gpio(bank, d->hwirq); + unsigned offset = d->hwirq; - return omap_set_gpio_wakeup(bank, gpio, enable); + return omap_set_gpio_wakeup(bank, offset, enable); } static int omap_gpio_request(struct gpio_chip *chip, unsigned offset) @@ -705,7 +708,7 @@ static void omap_gpio_free(struct gpio_chip *chip, unsigned offset) spin_lock_irqsave(&bank->lock, flags); bank->mod_usage &= ~(BIT(offset)); omap_disable_gpio_module(bank, offset); - omap_reset_gpio(bank, bank->chip.base + offset); + omap_reset_gpio(bank, offset); spin_unlock_irqrestore(&bank->lock, flags); /* @@ -819,14 +822,13 @@ static unsigned int omap_gpio_irq_startup(struct irq_data *d) static void omap_gpio_irq_shutdown(struct irq_data *d) { struct gpio_bank *bank = omap_irq_data_get_bank(d); - unsigned int gpio = omap_irq_to_gpio(bank, d->hwirq); unsigned long flags; - unsigned offset = GPIO_INDEX(bank, gpio); + unsigned offset = d->hwirq; spin_lock_irqsave(&bank->lock, flags); bank->irq_usage &= ~(BIT(offset)); omap_disable_gpio_module(bank, offset); - omap_reset_gpio(bank, gpio); + omap_reset_gpio(bank, offset); spin_unlock_irqrestore(&bank->lock, flags); /* @@ -840,43 +842,42 @@ static void omap_gpio_irq_shutdown(struct irq_data *d) static void omap_gpio_ack_irq(struct irq_data *d) { struct gpio_bank *bank = omap_irq_data_get_bank(d); - unsigned int gpio = omap_irq_to_gpio(bank, d->hwirq); + unsigned offset = d->hwirq; - omap_clear_gpio_irqstatus(bank, gpio); + omap_clear_gpio_irqstatus(bank, offset); } static void omap_gpio_mask_irq(struct irq_data *d) { struct gpio_bank *bank = omap_irq_data_get_bank(d); - unsigned int gpio = omap_irq_to_gpio(bank, d->hwirq); + unsigned offset = d->hwirq; unsigned long flags; spin_lock_irqsave(&bank->lock, flags); - omap_set_gpio_irqenable(bank, gpio, 0); - omap_set_gpio_triggering(bank, GPIO_INDEX(bank, gpio), IRQ_TYPE_NONE); + omap_set_gpio_irqenable(bank, offset, 0); + omap_set_gpio_triggering(bank, offset, IRQ_TYPE_NONE); spin_unlock_irqrestore(&bank->lock, flags); } static void omap_gpio_unmask_irq(struct irq_data *d) { struct gpio_bank *bank = omap_irq_data_get_bank(d); - unsigned int gpio = omap_irq_to_gpio(bank, d->hwirq); - unsigned int irq_mask = GPIO_BIT(bank, gpio); + unsigned offset = d->hwirq; u32 trigger = irqd_get_trigger_type(d); unsigned long flags; spin_lock_irqsave(&bank->lock, flags); if (trigger) - omap_set_gpio_triggering(bank, GPIO_INDEX(bank, gpio), trigger); + omap_set_gpio_triggering(bank, offset, trigger); /* For level-triggered GPIOs, the clearing must be done after * the HW source is cleared, thus after the handler has run */ - if (bank->level_mask & irq_mask) { - omap_set_gpio_irqenable(bank, gpio, 0); - omap_clear_gpio_irqstatus(bank, gpio); + if (bank->level_mask & BIT(offset)) { + omap_set_gpio_irqenable(bank, offset, 0); + omap_clear_gpio_irqstatus(bank, offset); } - omap_set_gpio_irqenable(bank, gpio, 1); + omap_set_gpio_irqenable(bank, offset, 1); spin_unlock_irqrestore(&bank->lock, flags); } |