[PATCH 5/6] ARM: Samsung: Add common samsung_gpiolib_to_irq function
Kukjin Kim
kgene.kim at samsung.com
Fri Oct 1 00:49:21 EDT 2010
Marek Szyprowski wrote:
>
> From: Joonyoung Shim <jy0922.shim at samsung.com>
>
> This patch adds a common callback for gpio_to_irq() for external and
> gpio interrupts for Samsung SoCs.
>
> Signed-off-by: Joonyoung Shim <jy0922.shim at samsung.com>
> Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
> Signed-off-by: Marek Szyprowski <m.szyprowski at samsung.com>
> ---
> arch/arm/mach-s3c64xx/gpiolib.c | 8 +----
> arch/arm/mach-s5pc100/gpiolib.c | 31
++++++-----------------
> arch/arm/mach-s5pv210/gpiolib.c | 8 ++++++
> arch/arm/plat-s3c24xx/gpiolib.c | 8 +----
> arch/arm/plat-s5p/irq-gpioint.c | 1 +
> arch/arm/plat-samsung/gpiolib.c | 8 ++++++
> arch/arm/plat-samsung/include/plat/gpio-core.h | 11 ++++++++
> 7 files changed, 40 insertions(+), 35 deletions(-)
>
> diff --git a/arch/arm/mach-s3c64xx/gpiolib.c
b/arch/arm/mach-s3c64xx/gpiolib.c
> index 300dee4..fd99a82 100644
> --- a/arch/arm/mach-s3c64xx/gpiolib.c
> +++ b/arch/arm/mach-s3c64xx/gpiolib.c
> @@ -195,11 +195,6 @@ static struct s3c_gpio_cfg gpio_2bit_cfg_eint11 = {
> .get_pull = s3c_gpio_getpull_updown,
> };
>
> -int s3c64xx_gpio2int_gpn(struct gpio_chip *chip, unsigned pin)
> -{
> - return IRQ_EINT(0) + pin;
> -}
> -
> static struct s3c_gpio_chip gpio_2bit[] = {
> {
> .base = S3C64XX_GPF_BASE,
> @@ -227,12 +222,13 @@ static struct s3c_gpio_chip gpio_2bit[] = {
> },
> }, {
> .base = S3C64XX_GPN_BASE,
> + .irq_base = IRQ_EINT(0),
> .config = &gpio_2bit_cfg_eint10,
> .chip = {
> .base = S3C64XX_GPN(0),
> .ngpio = S3C64XX_GPIO_N_NR,
> .label = "GPN",
> - .to_irq = s3c64xx_gpio2int_gpn,
> + .to_irq = samsung_gpiolib_to_irq,
> },
> }, {
> .base = S3C64XX_GPO_BASE,
> diff --git a/arch/arm/mach-s5pc100/gpiolib.c
b/arch/arm/mach-s5pc100/gpiolib.c
> index 5811578..def4ff8 100644
> --- a/arch/arm/mach-s5pc100/gpiolib.c
> +++ b/arch/arm/mach-s5pc100/gpiolib.c
> @@ -61,25 +61,6 @@
> * L3 8 4Bit None
> */
>
> -static int s5pc100_gpiolib_to_eint(struct gpio_chip *chip, unsigned int
offset)
> -{
> - int base;
> -
> - base = chip->base - S5PC100_GPH0(0);
> - if (base == 0)
> - return IRQ_EINT(offset);
> - base = chip->base - S5PC100_GPH1(0);
> - if (base == 0)
> - return IRQ_EINT(8 + offset);
> - base = chip->base - S5PC100_GPH2(0);
> - if (base == 0)
> - return IRQ_EINT(16 + offset);
> - base = chip->base - S5PC100_GPH3(0);
> - if (base == 0)
> - return IRQ_EINT(24 + offset);
> - return -EINVAL;
> -}
> -
> static struct s3c_gpio_cfg gpio_cfg = {
> .set_config = s3c_gpio_setcfg_s3c64xx_4bit,
> .set_pull = s3c_gpio_setpull_updown,
> @@ -223,38 +204,42 @@ static struct s3c_gpio_chip s5pc100_gpio_chips[] = {
> }, {
> .base = S5PC100_GPH0_BASE,
> .config = &gpio_cfg_eint,
> + .irq_base = IRQ_EINT(0),
> .chip = {
> .base = S5PC100_GPH0(0),
> .ngpio = S5PC100_GPIO_H0_NR,
> .label = "GPH0",
> - .to_irq = s5pc100_gpiolib_to_eint,
> + .to_irq = samsung_gpiolib_to_irq,
> },
> }, {
> .base = S5PC100_GPH1_BASE,
> .config = &gpio_cfg_eint,
> + .irq_base = IRQ_EINT(8),
> .chip = {
> .base = S5PC100_GPH1(0),
> .ngpio = S5PC100_GPIO_H1_NR,
> .label = "GPH1",
> - .to_irq = s5pc100_gpiolib_to_eint,
> + .to_irq = samsung_gpiolib_to_irq,
> },
> }, {
> .base = S5PC100_GPH2_BASE,
> .config = &gpio_cfg_eint,
> + .irq_base = IRQ_EINT(16),
> .chip = {
> .base = S5PC100_GPH2(0),
> .ngpio = S5PC100_GPIO_H2_NR,
> .label = "GPH2",
> - .to_irq = s5pc100_gpiolib_to_eint,
> + .to_irq = samsung_gpiolib_to_irq,
> },
> }, {
> .base = S5PC100_GPH3_BASE,
> .config = &gpio_cfg_eint,
> + .irq_base = IRQ_EINT(24),
> .chip = {
> .base = S5PC100_GPH3(0),
> .ngpio = S5PC100_GPIO_H3_NR,
> .label = "GPH3",
> - .to_irq = s5pc100_gpiolib_to_eint,
> + .to_irq = samsung_gpiolib_to_irq,
> },
> }, {
> .base = S5PC100_GPI_BASE,
> diff --git a/arch/arm/mach-s5pv210/gpiolib.c
b/arch/arm/mach-s5pv210/gpiolib.c
> index 29dfb89..ab673ef 100644
> --- a/arch/arm/mach-s5pv210/gpiolib.c
> +++ b/arch/arm/mach-s5pv210/gpiolib.c
> @@ -224,34 +224,42 @@ static struct s3c_gpio_chip s5pv210_gpio_4bit[] = {
> }, {
> .base = (S5P_VA_GPIO + 0xC00),
> .config = &gpio_cfg_noint,
> + .irq_base = IRQ_EINT(0),
> .chip = {
> .base = S5PV210_GPH0(0),
> .ngpio = S5PV210_GPIO_H0_NR,
> .label = "GPH0",
> + .to_irq = samsung_gpiolib_to_irq,
> },
> }, {
> .base = (S5P_VA_GPIO + 0xC20),
> .config = &gpio_cfg_noint,
> + .irq_base = IRQ_EINT(8),
> .chip = {
> .base = S5PV210_GPH1(0),
> .ngpio = S5PV210_GPIO_H1_NR,
> .label = "GPH1",
> + .to_irq = samsung_gpiolib_to_irq,
> },
> }, {
> .base = (S5P_VA_GPIO + 0xC40),
> .config = &gpio_cfg_noint,
> + .irq_base = IRQ_EINT(16),
> .chip = {
> .base = S5PV210_GPH2(0),
> .ngpio = S5PV210_GPIO_H2_NR,
> .label = "GPH2",
> + .to_irq = samsung_gpiolib_to_irq,
> },
> }, {
> .base = (S5P_VA_GPIO + 0xC60),
> .config = &gpio_cfg_noint,
> + .irq_base = IRQ_EINT(24),
> .chip = {
> .base = S5PV210_GPH3(0),
> .ngpio = S5PV210_GPIO_H3_NR,
> .label = "GPH3",
> + .to_irq = samsung_gpiolib_to_irq,
> },
> },
> };
> diff --git a/arch/arm/plat-s3c24xx/gpiolib.c
b/arch/arm/plat-s3c24xx/gpiolib.c
> index 4c0896f..243b641 100644
> --- a/arch/arm/plat-s3c24xx/gpiolib.c
> +++ b/arch/arm/plat-s3c24xx/gpiolib.c
> @@ -74,11 +74,6 @@ static int s3c24xx_gpiolib_bankf_toirq(struct gpio_chip
> *chip, unsigned offset)
> return -EINVAL;
> }
>
> -static int s3c24xx_gpiolib_bankg_toirq(struct gpio_chip *chip, unsigned
offset)
> -{
> - return IRQ_EINT8 + offset;
> -}
> -
> static struct s3c_gpio_cfg s3c24xx_gpiocfg_banka = {
> .set_config = s3c_gpio_setcfg_s3c24xx_a,
> .get_config = s3c_gpio_getcfg_s3c24xx_a,
> @@ -157,12 +152,13 @@ struct s3c_gpio_chip s3c24xx_gpios[] = {
> [6] = {
> .base = S3C2410_GPGCON,
> .pm = __gpio_pm(&s3c_gpio_pm_2bit),
> + .irq_base = IRQ_EINT8,
> .chip = {
> .base = S3C2410_GPG(0),
> .owner = THIS_MODULE,
> .label = "GPIOG",
> .ngpio = 16,
> - .to_irq =
> s3c24xx_gpiolib_bankg_toirq,
> + .to_irq = samsung_gpiolib_to_irq,
> },
> }, {
> .base = S3C2410_GPHCON,
> diff --git a/arch/arm/plat-s5p/irq-gpioint.c
b/arch/arm/plat-s5p/irq-gpioint.c
> index 7409ae0..5b735b1 100644
> --- a/arch/arm/plat-s5p/irq-gpioint.c
> +++ b/arch/arm/plat-s5p/irq-gpioint.c
> @@ -235,6 +235,7 @@ int __init s5p_register_gpio_interrupt(int pin)
> /* register gpio group */
> ret = s5p_gpioint_add(my_chip);
> if (ret == 0) {
> + my_chip->chip.to_irq = samsung_gpiolib_to_irq;
> printk(KERN_INFO "Registered interrupt support for gpio
> group %d.\n",
> group);
> return my_chip->irq_base + offset;
> diff --git a/arch/arm/plat-samsung/gpiolib.c
b/arch/arm/plat-samsung/gpiolib.c
> index c354089..f2dc389 100644
> --- a/arch/arm/plat-samsung/gpiolib.c
> +++ b/arch/arm/plat-samsung/gpiolib.c
> @@ -197,3 +197,11 @@ void __init samsung_gpiolib_add_4bit2_chips(struct
> s3c_gpio_chip *chip,
> s3c_gpiolib_add(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;
> +}
Hi,
Following is for your information...
Moved samsung_gpiolib_to_irq() into plat-samsung/gpio.c because happened
build error like following after applying this.
arch/arm/plat-s3c24xx/built-in.o:(.data+0x11c4): undefined reference to
`samsung_gpiolib_to_irq'
The reason is that plat-samsung/gpiolib.c is not required for
s3c24xx...applied anyway with modifying.
> diff --git a/arch/arm/plat-samsung/include/plat/gpio-core.h
b/arch/arm/plat-
> samsung/include/plat/gpio-core.h
> index c22c27c..13a22b8 100644
> --- a/arch/arm/plat-samsung/include/plat/gpio-core.h
> +++ b/arch/arm/plat-samsung/include/plat/gpio-core.h
> @@ -122,6 +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;
>
> --
Thanks.
Best regards,
Kgene.
--
Kukjin Kim <kgene.kim at samsung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.
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