diff options
Diffstat (limited to 'arch/arm/plat-samsung')
| -rw-r--r-- | arch/arm/plat-samsung/dev-hsmmc3.c | 4 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/gpio.c | 8 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/gpio-cfg.h | 18 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/gpio-core.h | 15 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/pm-gpio.c | 4 |
5 files changed, 45 insertions, 4 deletions
diff --git a/arch/arm/plat-samsung/dev-hsmmc3.c b/arch/arm/plat-samsung/dev-hsmmc3.c index 85aaf0f2842f..335bc35044d3 100644 --- a/arch/arm/plat-samsung/dev-hsmmc3.c +++ b/arch/arm/plat-samsung/dev-hsmmc3.c @@ -33,8 +33,8 @@ static struct resource s3c_hsmmc3_resource[] = { .flags = IORESOURCE_MEM, }, [1] = { - .start = IRQ_MMC3, - .end = IRQ_MMC3, + .start = IRQ_HSMMC3, + .end = IRQ_HSMMC3, .flags = IORESOURCE_IRQ, } }; diff --git a/arch/arm/plat-samsung/gpio.c b/arch/arm/plat-samsung/gpio.c index b83a83351cea..7743c4b8b2fb 100644 --- a/arch/arm/plat-samsung/gpio.c +++ b/arch/arm/plat-samsung/gpio.c @@ -157,3 +157,11 @@ __init void s3c_gpiolib_add(struct s3c_gpio_chip *chip) if (ret >= 0) s3c_gpiolib_track(chip); } + +int samsung_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset) +{ + struct s3c_gpio_chip *s3c_chip = container_of(chip, + struct s3c_gpio_chip, chip); + + return s3c_chip->irq_base + offset; +} diff --git a/arch/arm/plat-samsung/include/plat/gpio-cfg.h b/arch/arm/plat-samsung/include/plat/gpio-cfg.h index f684901b4b76..e4b5cf126fa9 100644 --- a/arch/arm/plat-samsung/include/plat/gpio-cfg.h +++ b/arch/arm/plat-samsung/include/plat/gpio-cfg.h @@ -207,4 +207,22 @@ extern s5p_gpio_drvstr_t s5p_gpio_get_drvstr(unsigned int pin); */ extern int s5p_gpio_set_drvstr(unsigned int pin, s5p_gpio_drvstr_t drvstr); +/** + * s5p_register_gpio_interrupt() - register interrupt support for a gpio group + * @pin: The pin number from the group to be registered + * + * This function registers gpio interrupt support for the group that the + * specified pin belongs to. + * + * The total number of gpio pins is quite large ob s5p series. Registering + * irq support for all of them would be a resource waste. Because of that the + * interrupt support for standard gpio pins is registered dynamically. + * + * It will return the irq number of the interrupt that has been registered + * or -ENOMEM if no more gpio interrupts can be registered. It is allowed + * to call this function more than once for the same gpio group (the group + * will be registered only once). + */ +extern int s5p_register_gpio_interrupt(int pin); + #endif /* __PLAT_GPIO_CFG_H */ diff --git a/arch/arm/plat-samsung/include/plat/gpio-core.h b/arch/arm/plat-samsung/include/plat/gpio-core.h index e358c7da8480..13a22b8861ef 100644 --- a/arch/arm/plat-samsung/include/plat/gpio-core.h +++ b/arch/arm/plat-samsung/include/plat/gpio-core.h @@ -43,6 +43,8 @@ struct s3c_gpio_cfg; * struct s3c_gpio_chip - wrapper for specific implementation of gpio * @chip: The chip structure to be exported via gpiolib. * @base: The base pointer to the gpio configuration registers. + * @group: The group register number for gpio interrupt support. + * @irq_base: The base irq number. * @config: special function and pull-resistor control information. * @lock: Lock for exclusive access to this gpio bank. * @pm_save: Save information for suspend/resume support. @@ -63,6 +65,8 @@ struct s3c_gpio_chip { struct s3c_gpio_cfg *config; struct s3c_gpio_pm *pm; void __iomem *base; + int irq_base; + int group; spinlock_t lock; #ifdef CONFIG_PM u32 pm_save[4]; @@ -118,6 +122,17 @@ extern void samsung_gpiolib_add_4bit2_chips(struct s3c_gpio_chip *chip, extern void samsung_gpiolib_add_4bit(struct s3c_gpio_chip *chip); extern void samsung_gpiolib_add_4bit2(struct s3c_gpio_chip *chip); + +/** + * samsung_gpiolib_to_irq - convert gpio pin to irq number + * @chip: The gpio chip that the pin belongs to. + * @offset: The offset of the pin in the chip. + * + * This helper returns the irq number calculated from the chip->irq_base and + * the provided offset. + */ +extern int samsung_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset); + /* exported for core SoC support to change */ extern struct s3c_gpio_cfg s3c24xx_gpiocfg_default; diff --git a/arch/arm/plat-samsung/pm-gpio.c b/arch/arm/plat-samsung/pm-gpio.c index 7df03f87fbfa..96528200eb79 100644 --- a/arch/arm/plat-samsung/pm-gpio.c +++ b/arch/arm/plat-samsung/pm-gpio.c @@ -192,7 +192,7 @@ struct s3c_gpio_pm s3c_gpio_pm_2bit = { .resume = s3c_gpio_pm_2bit_resume, }; -#ifdef CONFIG_ARCH_S3C64XX +#if defined(CONFIG_ARCH_S3C64XX) || defined(CONFIG_PLAT_S5P) static void s3c_gpio_pm_4bit_save(struct s3c_gpio_chip *chip) { chip->pm_save[1] = __raw_readl(chip->base + OFFS_CON); @@ -302,7 +302,7 @@ struct s3c_gpio_pm s3c_gpio_pm_4bit = { .save = s3c_gpio_pm_4bit_save, .resume = s3c_gpio_pm_4bit_resume, }; -#endif /* CONFIG_ARCH_S3C64XX */ +#endif /* CONFIG_ARCH_S3C64XX || CONFIG_PLAT_S5P */ /** * s3c_pm_save_gpio() - save gpio chip data for suspend |
