From: Marek Szyprowski Date: Thu, 20 May 2010 05:51:09 +0000 (+0200) Subject: ARM: S5PC100: Add support for gpio interrupt X-Git-Tag: v2.6.35-rc1~264^2~1^2^2~29^2~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=23686a07b6222d5c40ea403705325e49d360603e;p=platform%2Fkernel%2Flinux-3.10.git ARM: S5PC100: Add support for gpio interrupt This patch moves support for gpio interrupts from plat-s5pc1xx to mach-s5pc100 directory. Signed-off-by: Marek Szyprowski Signed-off-by: Kyungmin Park Signed-off-by: Ben Dooks --- diff --git a/arch/arm/mach-s5pc100/Makefile b/arch/arm/mach-s5pc100/Makefile index 9b52d2a..6e3f57c 100644 --- a/arch/arm/mach-s5pc100/Makefile +++ b/arch/arm/mach-s5pc100/Makefile @@ -11,7 +11,7 @@ obj- := # Core support for S5PC100 system -obj-$(CONFIG_CPU_S5PC100) += cpu.o init.o clock.o gpiolib.o +obj-$(CONFIG_CPU_S5PC100) += cpu.o init.o clock.o gpiolib.o irq-gpio.o obj-$(CONFIG_CPU_S5PC100) += setup-i2c0.o # Helper and device support diff --git a/arch/arm/mach-s5pc100/gpiolib.c b/arch/arm/mach-s5pc100/gpiolib.c index 494a53b..88dd913c 100644 --- a/arch/arm/mach-s5pc100/gpiolib.c +++ b/arch/arm/mach-s5pc100/gpiolib.c @@ -387,7 +387,6 @@ extern void s5pc100_irq_gpioint_handler(unsigned int irq, struct irq_desc *desc) static __init void s5pc100_gpiolib_link(struct s3c_gpio_chip *chip) { -#if 0 /* Interrupt */ if (chip->config == &gpio_cfg) { int i, irq; @@ -401,9 +400,9 @@ static __init void s5pc100_gpiolib_link(struct s3c_gpio_chip *chip) set_irq_handler(irq, handle_level_irq); set_irq_flags(irq, IRQF_VALID); } - } else if (chip->config == &gpio_cfg_eint) + } else if (chip->config == &gpio_cfg_eint) { chip->chip.to_irq = s5pc100_gpiolib_to_eint; -#endif + } } static __init int s5pc100_gpiolib_init(void) @@ -419,10 +418,10 @@ static __init int s5pc100_gpiolib_init(void) samsung_gpiolib_add_4bit_chips(s5pc100_gpio_chips, ARRAY_SIZE(s5pc100_gpio_chips)); -#if 0 + /* Interrupt */ set_irq_chained_handler(IRQ_GPIOINT, s5pc100_irq_gpioint_handler); -#endif + return 0; } core_initcall(s5pc100_gpiolib_init); diff --git a/arch/arm/plat-s5pc1xx/irq-gpio.c b/arch/arm/mach-s5pc100/irq-gpio.c similarity index 72% rename from arch/arm/plat-s5pc1xx/irq-gpio.c rename to arch/arm/mach-s5pc100/irq-gpio.c index fecca7a..2bf86c1 100644 --- a/arch/arm/plat-s5pc1xx/irq-gpio.c +++ b/arch/arm/mach-s5pc100/irq-gpio.c @@ -1,9 +1,9 @@ /* - * arch/arm/plat-s5pc1xx/irq-gpio.c + * arch/arm/mach-s5pc100/irq-gpio.c * * Copyright (C) 2009 Samsung Electronics * - * S5PC1XX - Interrupt handling for IRQ_GPIO${group}(x) + * S5PC100 - Interrupt handling for IRQ_GPIO${group}(x) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -19,7 +19,7 @@ #include #include -#define S5PC1XX_GPIOREG(x) (S5PC1XX_VA_GPIO + (x)) +#define S5P_GPIOREG(x) (S5P_VA_GPIO + (x)) #define CON_OFFSET 0x700 #define MASK_OFFSET 0x900 @@ -49,7 +49,7 @@ static int group_to_pend_offset(int group) return group << 2; } -static int s5pc1xx_get_start(unsigned int group) +static int s5pc100_get_start(unsigned int group) { switch (group) { case 0: return S5PC100_GPIO_A0_START; @@ -80,7 +80,7 @@ static int s5pc1xx_get_start(unsigned int group) return -EINVAL; } -static int s5pc1xx_get_group(unsigned int irq) +static int s5pc100_get_group(unsigned int irq) { irq -= S3C_IRQ_GPIO(0); @@ -134,67 +134,67 @@ static int s5pc1xx_get_group(unsigned int irq) return -EINVAL; } -static int s5pc1xx_get_offset(unsigned int irq) +static int s5pc100_get_offset(unsigned int irq) { struct gpio_chip *chip = get_irq_data(irq); return irq - S3C_IRQ_GPIO(chip->base); } -static void s5pc1xx_gpioint_ack(unsigned int irq) +static void s5pc100_gpioint_ack(unsigned int irq) { int group, offset, pend_offset; unsigned int value; - group = s5pc1xx_get_group(irq); - offset = s5pc1xx_get_offset(irq); + group = s5pc100_get_group(irq); + offset = s5pc100_get_offset(irq); pend_offset = group_to_pend_offset(group); - value = __raw_readl(S5PC1XX_GPIOREG(PEND_OFFSET) + pend_offset); + value = __raw_readl(S5P_GPIOREG(PEND_OFFSET) + pend_offset); value |= 1 << offset; - __raw_writel(value, S5PC1XX_GPIOREG(PEND_OFFSET) + pend_offset); + __raw_writel(value, S5P_GPIOREG(PEND_OFFSET) + pend_offset); } -static void s5pc1xx_gpioint_mask(unsigned int irq) +static void s5pc100_gpioint_mask(unsigned int irq) { int group, offset, mask_offset; unsigned int value; - group = s5pc1xx_get_group(irq); - offset = s5pc1xx_get_offset(irq); + group = s5pc100_get_group(irq); + offset = s5pc100_get_offset(irq); mask_offset = group_to_mask_offset(group); - value = __raw_readl(S5PC1XX_GPIOREG(MASK_OFFSET) + mask_offset); + value = __raw_readl(S5P_GPIOREG(MASK_OFFSET) + mask_offset); value |= 1 << offset; - __raw_writel(value, S5PC1XX_GPIOREG(MASK_OFFSET) + mask_offset); + __raw_writel(value, S5P_GPIOREG(MASK_OFFSET) + mask_offset); } -static void s5pc1xx_gpioint_unmask(unsigned int irq) +static void s5pc100_gpioint_unmask(unsigned int irq) { int group, offset, mask_offset; unsigned int value; - group = s5pc1xx_get_group(irq); - offset = s5pc1xx_get_offset(irq); + group = s5pc100_get_group(irq); + offset = s5pc100_get_offset(irq); mask_offset = group_to_mask_offset(group); - value = __raw_readl(S5PC1XX_GPIOREG(MASK_OFFSET) + mask_offset); + value = __raw_readl(S5P_GPIOREG(MASK_OFFSET) + mask_offset); value &= ~(1 << offset); - __raw_writel(value, S5PC1XX_GPIOREG(MASK_OFFSET) + mask_offset); + __raw_writel(value, S5P_GPIOREG(MASK_OFFSET) + mask_offset); } -static void s5pc1xx_gpioint_mask_ack(unsigned int irq) +static void s5pc100_gpioint_mask_ack(unsigned int irq) { - s5pc1xx_gpioint_mask(irq); - s5pc1xx_gpioint_ack(irq); + s5pc100_gpioint_mask(irq); + s5pc100_gpioint_ack(irq); } -static int s5pc1xx_gpioint_set_type(unsigned int irq, unsigned int type) +static int s5pc100_gpioint_set_type(unsigned int irq, unsigned int type) { int group, offset, con_offset; unsigned int value; - group = s5pc1xx_get_group(irq); - offset = s5pc1xx_get_offset(irq); + group = s5pc100_get_group(irq); + offset = s5pc100_get_offset(irq); con_offset = group_to_con_offset(group); switch (type) { @@ -221,24 +221,24 @@ static int s5pc1xx_gpioint_set_type(unsigned int irq, unsigned int type) } - value = __raw_readl(S5PC1XX_GPIOREG(CON_OFFSET) + con_offset); + value = __raw_readl(S5P_GPIOREG(CON_OFFSET) + con_offset); value &= ~(0xf << (offset * 0x4)); value |= (type << (offset * 0x4)); - __raw_writel(value, S5PC1XX_GPIOREG(CON_OFFSET) + con_offset); + __raw_writel(value, S5P_GPIOREG(CON_OFFSET) + con_offset); return 0; } -struct irq_chip s5pc1xx_gpioint = { +struct irq_chip s5pc100_gpioint = { .name = "GPIO", - .ack = s5pc1xx_gpioint_ack, - .mask = s5pc1xx_gpioint_mask, - .mask_ack = s5pc1xx_gpioint_mask_ack, - .unmask = s5pc1xx_gpioint_unmask, - .set_type = s5pc1xx_gpioint_set_type, + .ack = s5pc100_gpioint_ack, + .mask = s5pc100_gpioint_mask, + .mask_ack = s5pc100_gpioint_mask_ack, + .unmask = s5pc100_gpioint_unmask, + .set_type = s5pc100_gpioint_set_type, }; -void s5pc1xx_irq_gpioint_handler(unsigned int irq, struct irq_desc *desc) +void s5pc100_irq_gpioint_handler(unsigned int irq, struct irq_desc *desc) { int group, offset, pend_offset, mask_offset; int real_irq, group_end; @@ -248,17 +248,17 @@ void s5pc1xx_irq_gpioint_handler(unsigned int irq, struct irq_desc *desc) for (group = 0; group < group_end; group++) { pend_offset = group_to_pend_offset(group); - pend = __raw_readl(S5PC1XX_GPIOREG(PEND_OFFSET) + pend_offset); + pend = __raw_readl(S5P_GPIOREG(PEND_OFFSET) + pend_offset); if (!pend) continue; mask_offset = group_to_mask_offset(group); - mask = __raw_readl(S5PC1XX_GPIOREG(MASK_OFFSET) + mask_offset); + mask = __raw_readl(S5P_GPIOREG(MASK_OFFSET) + mask_offset); pend &= ~mask; for (offset = 0; offset < 8; offset++) { if (pend & (1 << offset)) { - real_irq = s5pc1xx_get_start(group) + offset; + real_irq = s5pc100_get_start(group) + offset; generic_handle_irq(S3C_IRQ_GPIO(real_irq)); } }