From 4f41d3ecc3490a580bf42798fc930594217281d5 Mon Sep 17 00:00:00 2001 From: Tarun Kanti DebBarma Date: Fri, 13 May 2011 17:27:24 +0530 Subject: GPIO: OMAP: Use level/edge detect reg offsets By adding level and edge detection register offsets and then initializing them correctly according to OMAP versions during device registrations we can now remove lot of revision checks in these functions. Signed-off-by: Tarun Kanti DebBarma Signed-off-by: Charulatha V --- drivers/gpio/gpio-omap.c | 118 +++++++++++++++-------------------------------- 1 file changed, 36 insertions(+), 82 deletions(-) (limited to 'drivers/gpio') diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index 1ca8b95..ae8fc33 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -254,15 +254,9 @@ static inline void set_24xx_gpio_triggering(struct gpio_bank *bank, int gpio, bank->enabled_non_wakeup_gpios &= ~gpio_bit; } - if (cpu_is_omap44xx()) { - bank->level_mask = - __raw_readl(bank->base + OMAP4_GPIO_LEVELDETECT0) | - __raw_readl(bank->base + OMAP4_GPIO_LEVELDETECT1); - } else { - bank->level_mask = - __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT0) | - __raw_readl(bank->base + OMAP24XX_GPIO_LEVELDETECT1); - } + bank->level_mask = + __raw_readl(bank->base + bank->regs->leveldetect0) | + __raw_readl(bank->base + bank->regs->leveldetect1); } #endif @@ -402,12 +396,12 @@ static int gpio_irq_type(struct irq_data *d, unsigned type) if (type & ~IRQ_TYPE_SENSE_MASK) return -EINVAL; - /* OMAP1 allows only only edge triggering */ - if (!cpu_class_is_omap2() - && (type & (IRQ_TYPE_LEVEL_LOW|IRQ_TYPE_LEVEL_HIGH))) + bank = irq_data_get_irq_chip_data(d); + + if (bank->regs->leveldetect0 && (type & + (IRQ_TYPE_LEVEL_LOW|IRQ_TYPE_LEVEL_HIGH))) return -EINVAL; - bank = irq_data_get_irq_chip_data(d); spin_lock_irqsave(&bank->lock, flags); retval = _set_gpio_triggering(bank, GPIO_INDEX(bank, gpio), type); spin_unlock_irqrestore(&bank->lock, flags); @@ -654,9 +648,8 @@ static void gpio_irq_handler(unsigned int irq, struct irq_desc *desc) if (cpu_is_omap15xx() && (bank->method == METHOD_MPUIO)) isr &= 0x0000ffff; - if (cpu_class_is_omap2()) { + if (bank->regs->leveldetect0) level_mask = bank->level_mask & enabled; - } /* clear edge sensitive interrupts before handler(s) are called so that we don't miss any interrupt occurred while @@ -1254,40 +1247,18 @@ void omap2_gpio_prepare_for_idle(int off_mode) if (!(bank->enabled_non_wakeup_gpios)) goto save_gpio_ctx; - if (cpu_is_omap24xx() || cpu_is_omap34xx()) { - bank->saved_datain = __raw_readl(bank->base + - OMAP24XX_GPIO_DATAIN); - l1 = __raw_readl(bank->base + - OMAP24XX_GPIO_FALLINGDETECT); - l2 = __raw_readl(bank->base + - OMAP24XX_GPIO_RISINGDETECT); - } - - if (cpu_is_omap44xx()) { - bank->saved_datain = __raw_readl(bank->base + - OMAP4_GPIO_DATAIN); - l1 = __raw_readl(bank->base + - OMAP4_GPIO_FALLINGDETECT); - l2 = __raw_readl(bank->base + - OMAP4_GPIO_RISINGDETECT); - } + bank->saved_datain = __raw_readl(bank->base + + bank->regs->datain); + l1 = __raw_readl(bank->base + bank->regs->fallingdetect); + l2 = __raw_readl(bank->base + bank->regs->risingdetect); bank->saved_fallingdetect = l1; bank->saved_risingdetect = l2; l1 &= ~bank->enabled_non_wakeup_gpios; l2 &= ~bank->enabled_non_wakeup_gpios; - if (cpu_is_omap24xx() || cpu_is_omap34xx()) { - __raw_writel(l1, bank->base + - OMAP24XX_GPIO_FALLINGDETECT); - __raw_writel(l2, bank->base + - OMAP24XX_GPIO_RISINGDETECT); - } - - if (cpu_is_omap44xx()) { - __raw_writel(l1, bank->base + OMAP4_GPIO_FALLINGDETECT); - __raw_writel(l2, bank->base + OMAP4_GPIO_RISINGDETECT); - } + __raw_writel(l1, bank->base + bank->regs->fallingdetect); + __raw_writel(l2, bank->base + bank->regs->risingdetect); save_gpio_ctx: if (bank->get_context_loss_count) @@ -1323,21 +1294,11 @@ void omap2_gpio_resume_after_idle(void) if (!(bank->enabled_non_wakeup_gpios)) continue; - if (cpu_is_omap24xx() || cpu_is_omap34xx()) { - __raw_writel(bank->saved_fallingdetect, - bank->base + OMAP24XX_GPIO_FALLINGDETECT); - __raw_writel(bank->saved_risingdetect, - bank->base + OMAP24XX_GPIO_RISINGDETECT); - l = __raw_readl(bank->base + OMAP24XX_GPIO_DATAIN); - } - - if (cpu_is_omap44xx()) { - __raw_writel(bank->saved_fallingdetect, - bank->base + OMAP4_GPIO_FALLINGDETECT); - __raw_writel(bank->saved_risingdetect, - bank->base + OMAP4_GPIO_RISINGDETECT); - l = __raw_readl(bank->base + OMAP4_GPIO_DATAIN); - } + __raw_writel(bank->saved_fallingdetect, + bank->base + bank->regs->fallingdetect); + __raw_writel(bank->saved_risingdetect, + bank->base + bank->regs->risingdetect); + l = __raw_readl(bank->base + bank->regs->datain); /* Check if any of the non-wakeup interrupt GPIOs have changed * state. If so, generate an IRQ by software. This is @@ -1365,35 +1326,28 @@ void omap2_gpio_resume_after_idle(void) if (gen) { u32 old0, old1; + old0 = __raw_readl(bank->base + + bank->regs->leveldetect0); + old1 = __raw_readl(bank->base + + bank->regs->leveldetect1); + + __raw_writel(old0, bank->base + + bank->regs->leveldetect0); + __raw_writel(old1, bank->base + + bank->regs->leveldetect1); if (cpu_is_omap24xx() || cpu_is_omap34xx()) { - old0 = __raw_readl(bank->base + - OMAP24XX_GPIO_LEVELDETECT0); - old1 = __raw_readl(bank->base + - OMAP24XX_GPIO_LEVELDETECT1); - __raw_writel(old0 | gen, bank->base + - OMAP24XX_GPIO_LEVELDETECT0); - __raw_writel(old1 | gen, bank->base + - OMAP24XX_GPIO_LEVELDETECT1); - __raw_writel(old0, bank->base + - OMAP24XX_GPIO_LEVELDETECT0); - __raw_writel(old1, bank->base + - OMAP24XX_GPIO_LEVELDETECT1); + old0 |= gen; + old1 |= gen; } if (cpu_is_omap44xx()) { - old0 = __raw_readl(bank->base + - OMAP4_GPIO_LEVELDETECT0); - old1 = __raw_readl(bank->base + - OMAP4_GPIO_LEVELDETECT1); - __raw_writel(old0 | l, bank->base + - OMAP4_GPIO_LEVELDETECT0); - __raw_writel(old1 | l, bank->base + - OMAP4_GPIO_LEVELDETECT1); - __raw_writel(old0, bank->base + - OMAP4_GPIO_LEVELDETECT0); - __raw_writel(old1, bank->base + - OMAP4_GPIO_LEVELDETECT1); + old0 |= l; + old1 |= l; } + __raw_writel(old0, bank->base + + bank->regs->leveldetect0); + __raw_writel(old1, bank->base + + bank->regs->leveldetect1); } } } -- cgit v1.1