diff options
| -rw-r--r-- | arch/arm/mach-ep93xx/core.c | 9 | ||||
| -rw-r--r-- | drivers/gpio/gpio-ep93xx.c | 48 |
2 files changed, 32 insertions, 25 deletions
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c index faf48a3b1fea..706515faee06 100644 --- a/arch/arm/mach-ep93xx/core.c +++ b/arch/arm/mach-ep93xx/core.c @@ -141,6 +141,15 @@ EXPORT_SYMBOL_GPL(ep93xx_chip_revision); *************************************************************************/ static struct resource ep93xx_gpio_resource[] = { DEFINE_RES_MEM(EP93XX_GPIO_PHYS_BASE, 0xcc), + DEFINE_RES_IRQ(IRQ_EP93XX_GPIO_AB), + DEFINE_RES_IRQ(IRQ_EP93XX_GPIO0MUX), + DEFINE_RES_IRQ(IRQ_EP93XX_GPIO1MUX), + DEFINE_RES_IRQ(IRQ_EP93XX_GPIO2MUX), + DEFINE_RES_IRQ(IRQ_EP93XX_GPIO3MUX), + DEFINE_RES_IRQ(IRQ_EP93XX_GPIO4MUX), + DEFINE_RES_IRQ(IRQ_EP93XX_GPIO5MUX), + DEFINE_RES_IRQ(IRQ_EP93XX_GPIO6MUX), + DEFINE_RES_IRQ(IRQ_EP93XX_GPIO7MUX), }; static struct platform_device ep93xx_gpio_device = { diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c index 45d384039e9b..654525d6a9f1 100644 --- a/drivers/gpio/gpio-ep93xx.c +++ b/drivers/gpio/gpio-ep93xx.c @@ -22,11 +22,20 @@ /* FIXME: this is here for gpio_to_irq() - get rid of this! */ #include <linux/gpio.h> -#include <mach/hardware.h> -#include <mach/gpio-ep93xx.h> - #define irq_to_gpio(irq) ((irq) - gpio_to_irq(0)) +void __iomem *ep93xx_gpio_base; /* FIXME: put this into irq_data */ +#define EP93XX_GPIO_REG(x) (ep93xx_gpio_base + (x)) +#define EP93XX_GPIO_F_INT_STATUS EP93XX_GPIO_REG(0x5c) +#define EP93XX_GPIO_A_INT_STATUS EP93XX_GPIO_REG(0xa0) +#define EP93XX_GPIO_B_INT_STATUS EP93XX_GPIO_REG(0xbc) + +/* Maximum value for gpio line identifiers */ +#define EP93XX_GPIO_LINE_MAX 63 + +/* Maximum value for irq capable line identifiers */ +#define EP93XX_GPIO_LINE_MAX_IRQ 23 + struct ep93xx_gpio { void __iomem *mmio_base; struct gpio_chip gc[8]; @@ -87,7 +96,7 @@ static void ep93xx_gpio_ab_irq_handler(struct irq_desc *desc) status = readb(EP93XX_GPIO_A_INT_STATUS); for (i = 0; i < 8; i++) { if (status & (1 << i)) { - int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_A(0)) + i; + int gpio_irq = gpio_to_irq(0) + i; generic_handle_irq(gpio_irq); } } @@ -95,7 +104,7 @@ static void ep93xx_gpio_ab_irq_handler(struct irq_desc *desc) status = readb(EP93XX_GPIO_B_INT_STATUS); for (i = 0; i < 8; i++) { if (status & (1 << i)) { - int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_B(0)) + i; + int gpio_irq = gpio_to_irq(8) + i; generic_handle_irq(gpio_irq); } } @@ -110,7 +119,7 @@ static void ep93xx_gpio_f_irq_handler(struct irq_desc *desc) */ unsigned int irq = irq_desc_get_irq(desc); int port_f_idx = ((irq + 1) & 7) ^ 4; /* {19..22,47..50} -> {0..7} */ - int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_F(0)) + port_f_idx; + int gpio_irq = gpio_to_irq(16) + port_f_idx; generic_handle_irq(gpio_irq); } @@ -228,9 +237,10 @@ static struct irq_chip ep93xx_gpio_irq_chip = { .irq_set_type = ep93xx_gpio_irq_type, }; -static void ep93xx_gpio_init_irq(void) +static void ep93xx_gpio_init_irq(struct platform_device *pdev) { int gpio_irq; + int i; for (gpio_irq = gpio_to_irq(0); gpio_irq <= gpio_to_irq(EP93XX_GPIO_LINE_MAX_IRQ); ++gpio_irq) { @@ -239,24 +249,11 @@ static void ep93xx_gpio_init_irq(void) irq_clear_status_flags(gpio_irq, IRQ_NOREQUEST); } - irq_set_chained_handler(IRQ_EP93XX_GPIO_AB, + irq_set_chained_handler(platform_get_irq(pdev, 0), ep93xx_gpio_ab_irq_handler); - irq_set_chained_handler(IRQ_EP93XX_GPIO0MUX, - ep93xx_gpio_f_irq_handler); - irq_set_chained_handler(IRQ_EP93XX_GPIO1MUX, - ep93xx_gpio_f_irq_handler); - irq_set_chained_handler(IRQ_EP93XX_GPIO2MUX, - ep93xx_gpio_f_irq_handler); - irq_set_chained_handler(IRQ_EP93XX_GPIO3MUX, - ep93xx_gpio_f_irq_handler); - irq_set_chained_handler(IRQ_EP93XX_GPIO4MUX, - ep93xx_gpio_f_irq_handler); - irq_set_chained_handler(IRQ_EP93XX_GPIO5MUX, - ep93xx_gpio_f_irq_handler); - irq_set_chained_handler(IRQ_EP93XX_GPIO6MUX, - ep93xx_gpio_f_irq_handler); - irq_set_chained_handler(IRQ_EP93XX_GPIO7MUX, - ep93xx_gpio_f_irq_handler); + for (i = 1; i <= 8; i++) + irq_set_chained_handler(platform_get_irq(pdev, i), + ep93xx_gpio_f_irq_handler); } @@ -362,6 +359,7 @@ static int ep93xx_gpio_probe(struct platform_device *pdev) ep93xx_gpio->mmio_base = devm_ioremap_resource(dev, res); if (IS_ERR(ep93xx_gpio->mmio_base)) return PTR_ERR(ep93xx_gpio->mmio_base); + ep93xx_gpio_base = ep93xx_gpio->mmio_base; for (i = 0; i < ARRAY_SIZE(ep93xx_gpio_banks); i++) { struct gpio_chip *gc = &ep93xx_gpio->gc[i]; @@ -373,7 +371,7 @@ static int ep93xx_gpio_probe(struct platform_device *pdev) bank->label); } - ep93xx_gpio_init_irq(); + ep93xx_gpio_init_irq(pdev); return 0; } |