From 257af9f9725aa8a863b306659208a031135d59e7 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 22 Aug 2011 08:43:04 +0100 Subject: [PATCH] ARM: 7041/1: gpio-ep93xx: hookup the to_irq callback in the driver Remove the ep93xx machine specific dependencies for gpio_to_irq() by hooking up the callback in the driver and using __gpio_to_irq. Signed-off-by: H Hartley Sweeten Signed-off-by: Linus Walleij Signed-off-by: Russell King --- arch/arm/mach-ep93xx/include/mach/gpio.h | 9 +-------- drivers/gpio/gpio-ep93xx.c | 19 ++++++++++++++++++- 2 files changed, 19 insertions(+), 9 deletions(-) diff --git a/arch/arm/mach-ep93xx/include/mach/gpio.h b/arch/arm/mach-ep93xx/include/mach/gpio.h index 071f676c6e0..76c68faca94 100644 --- a/arch/arm/mach-ep93xx/include/mach/gpio.h +++ b/arch/arm/mach-ep93xx/include/mach/gpio.h @@ -99,14 +99,7 @@ /* maximum value for irq capable line identifiers */ #define EP93XX_GPIO_LINE_MAX_IRQ EP93XX_GPIO_LINE_F(7) -/* - * Map GPIO A0..A7 (0..7) to irq 64..71, - * B0..B7 (7..15) to irq 72..79, and - * F0..F7 (16..24) to irq 80..87. - */ -#define gpio_to_irq(gpio) \ - (((gpio) <= EP93XX_GPIO_LINE_MAX_IRQ) ? (64 + (gpio)) : -EINVAL) - +#define gpio_to_irq __gpio_to_irq #define irq_to_gpio(irq) ((irq) - gpio_to_irq(0)) #endif diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c index 72fb9c66532..fbd6a606677 100644 --- a/drivers/gpio/gpio-ep93xx.c +++ b/drivers/gpio/gpio-ep93xx.c @@ -307,6 +307,21 @@ static int ep93xx_gpio_set_debounce(struct gpio_chip *chip, return 0; } +/* + * Map GPIO A0..A7 (0..7) to irq 64..71, + * B0..B7 (7..15) to irq 72..79, and + * F0..F7 (16..24) to irq 80..87. + */ +static int ep93xx_gpio_to_irq(struct gpio_chip *chip, unsigned offset) +{ + int gpio = chip->base + offset; + + if (gpio > EP93XX_GPIO_LINE_MAX_IRQ) + return -EINVAL; + + return 64 + gpio; +} + static int ep93xx_gpio_add_bank(struct bgpio_chip *bgc, struct device *dev, void __iomem *mmio_base, struct ep93xx_gpio_bank *bank) { @@ -321,8 +336,10 @@ static int ep93xx_gpio_add_bank(struct bgpio_chip *bgc, struct device *dev, bgc->gc.label = bank->label; bgc->gc.base = bank->base; - if (bank->has_debounce) + if (bank->has_debounce) { bgc->gc.set_debounce = ep93xx_gpio_set_debounce; + bgc->gc.to_irq = ep93xx_gpio_to_irq; + } return gpiochip_add(&bgc->gc); } -- 2.39.5