gpio/samsung: add support GPIOlib for EXYNOS5250

This patch adds gpio_chips for EXYNOS5250 and replaces
exynos4_xxx() with exynos_xxx() and variables to support
exynos4 and exynos5 together.
In addition, use ioreamp() for base address of gpios.

Signed-off-by: Sangsu Park <sangsu4u.park@samsung.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Sangsu Park 2012-03-12 16:23:33 -07:00 committed by Kukjin Kim
parent bcdc87b594
commit a9696d840e
1 changed files with 411 additions and 28 deletions

View File

@ -169,7 +169,7 @@ int s3c24xx_gpio_setpull_1down(struct samsung_gpio_chip *chip,
return s3c24xx_gpio_setpull_1(chip, off, pull, S3C_GPIO_PULL_DOWN);
}
static int exynos4_gpio_setpull(struct samsung_gpio_chip *chip,
static int exynos_gpio_setpull(struct samsung_gpio_chip *chip,
unsigned int off, samsung_gpio_pull_t pull)
{
if (pull == S3C_GPIO_PULL_UP)
@ -178,7 +178,7 @@ static int exynos4_gpio_setpull(struct samsung_gpio_chip *chip,
return samsung_gpio_setpull_updown(chip, off, pull);
}
static samsung_gpio_pull_t exynos4_gpio_getpull(struct samsung_gpio_chip *chip,
static samsung_gpio_pull_t exynos_gpio_getpull(struct samsung_gpio_chip *chip,
unsigned int off)
{
samsung_gpio_pull_t pull;
@ -452,9 +452,9 @@ static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = {
};
#endif
static struct samsung_gpio_cfg exynos4_gpio_cfg = {
.set_pull = exynos4_gpio_setpull,
.get_pull = exynos4_gpio_getpull,
static struct samsung_gpio_cfg exynos_gpio_cfg = {
.set_pull = exynos_gpio_setpull,
.get_pull = exynos_gpio_getpull,
.set_config = samsung_gpio_setcfg_4bit,
.get_config = samsung_gpio_getcfg_4bit,
};
@ -502,13 +502,13 @@ static struct samsung_gpio_cfg samsung_gpio_cfgs[] = {
.get_config = samsung_gpio_getcfg_2bit,
},
[8] = {
.set_pull = exynos4_gpio_setpull,
.get_pull = exynos4_gpio_getpull,
.set_pull = exynos_gpio_setpull,
.get_pull = exynos_gpio_getpull,
},
[9] = {
.cfg_eint = 0x3,
.set_pull = exynos4_gpio_setpull,
.get_pull = exynos4_gpio_getpull,
.set_pull = exynos_gpio_setpull,
.get_pull = exynos_gpio_getpull,
}
};
@ -2113,10 +2113,10 @@ static struct samsung_gpio_chip s5pv210_gpios_4bit[] = {
};
/*
* Followings are the gpio banks in EXYNOS4210
* Followings are the gpio banks in EXYNOS SoCs
*
* The 'config' member when left to NULL, is initialized to the default
* structure samsung_gpio_cfgs[3] in the init function below.
* structure exynos_gpio_cfg in the init function below.
*
* The 'base' member is also initialized in the init function below.
* Note: The initialization of 'base' member of samsung_gpio_chip structure
@ -2386,8 +2386,280 @@ static struct samsung_gpio_chip exynos4_gpios_3[] = {
#endif
};
#if defined(CONFIG_ARCH_EXYNOS4) && defined(CONFIG_OF)
static int exynos4_gpio_xlate(struct gpio_chip *gc,
static struct samsung_gpio_chip exynos5_gpios_1[] = {
#ifdef CONFIG_ARCH_EXYNOS5
{
.chip = {
.base = EXYNOS5_GPA0(0),
.ngpio = EXYNOS5_GPIO_A0_NR,
.label = "GPA0",
},
}, {
.chip = {
.base = EXYNOS5_GPA1(0),
.ngpio = EXYNOS5_GPIO_A1_NR,
.label = "GPA1",
},
}, {
.chip = {
.base = EXYNOS5_GPA2(0),
.ngpio = EXYNOS5_GPIO_A2_NR,
.label = "GPA2",
},
}, {
.chip = {
.base = EXYNOS5_GPB0(0),
.ngpio = EXYNOS5_GPIO_B0_NR,
.label = "GPB0",
},
}, {
.chip = {
.base = EXYNOS5_GPB1(0),
.ngpio = EXYNOS5_GPIO_B1_NR,
.label = "GPB1",
},
}, {
.chip = {
.base = EXYNOS5_GPB2(0),
.ngpio = EXYNOS5_GPIO_B2_NR,
.label = "GPB2",
},
}, {
.chip = {
.base = EXYNOS5_GPB3(0),
.ngpio = EXYNOS5_GPIO_B3_NR,
.label = "GPB3",
},
}, {
.chip = {
.base = EXYNOS5_GPC0(0),
.ngpio = EXYNOS5_GPIO_C0_NR,
.label = "GPC0",
},
}, {
.chip = {
.base = EXYNOS5_GPC1(0),
.ngpio = EXYNOS5_GPIO_C1_NR,
.label = "GPC1",
},
}, {
.chip = {
.base = EXYNOS5_GPC2(0),
.ngpio = EXYNOS5_GPIO_C2_NR,
.label = "GPC2",
},
}, {
.chip = {
.base = EXYNOS5_GPC3(0),
.ngpio = EXYNOS5_GPIO_C3_NR,
.label = "GPC3",
},
}, {
.chip = {
.base = EXYNOS5_GPD0(0),
.ngpio = EXYNOS5_GPIO_D0_NR,
.label = "GPD0",
},
}, {
.chip = {
.base = EXYNOS5_GPD1(0),
.ngpio = EXYNOS5_GPIO_D1_NR,
.label = "GPD1",
},
}, {
.chip = {
.base = EXYNOS5_GPY0(0),
.ngpio = EXYNOS5_GPIO_Y0_NR,
.label = "GPY0",
},
}, {
.chip = {
.base = EXYNOS5_GPY1(0),
.ngpio = EXYNOS5_GPIO_Y1_NR,
.label = "GPY1",
},
}, {
.chip = {
.base = EXYNOS5_GPY2(0),
.ngpio = EXYNOS5_GPIO_Y2_NR,
.label = "GPY2",
},
}, {
.chip = {
.base = EXYNOS5_GPY3(0),
.ngpio = EXYNOS5_GPIO_Y3_NR,
.label = "GPY3",
},
}, {
.chip = {
.base = EXYNOS5_GPY4(0),
.ngpio = EXYNOS5_GPIO_Y4_NR,
.label = "GPY4",
},
}, {
.chip = {
.base = EXYNOS5_GPY5(0),
.ngpio = EXYNOS5_GPIO_Y5_NR,
.label = "GPY5",
},
}, {
.chip = {
.base = EXYNOS5_GPY6(0),
.ngpio = EXYNOS5_GPIO_Y6_NR,
.label = "GPY6",
},
}, {
.config = &samsung_gpio_cfgs[9],
.irq_base = IRQ_EINT(0),
.chip = {
.base = EXYNOS5_GPX0(0),
.ngpio = EXYNOS5_GPIO_X0_NR,
.label = "GPX0",
.to_irq = samsung_gpiolib_to_irq,
},
}, {
.config = &samsung_gpio_cfgs[9],
.irq_base = IRQ_EINT(8),
.chip = {
.base = EXYNOS5_GPX1(0),
.ngpio = EXYNOS5_GPIO_X1_NR,
.label = "GPX1",
.to_irq = samsung_gpiolib_to_irq,
},
}, {
.config = &samsung_gpio_cfgs[9],
.irq_base = IRQ_EINT(16),
.chip = {
.base = EXYNOS5_GPX2(0),
.ngpio = EXYNOS5_GPIO_X2_NR,
.label = "GPX2",
.to_irq = samsung_gpiolib_to_irq,
},
}, {
.config = &samsung_gpio_cfgs[9],
.irq_base = IRQ_EINT(24),
.chip = {
.base = EXYNOS5_GPX3(0),
.ngpio = EXYNOS5_GPIO_X3_NR,
.label = "GPX3",
.to_irq = samsung_gpiolib_to_irq,
},
},
#endif
};
static struct samsung_gpio_chip exynos5_gpios_2[] = {
#ifdef CONFIG_ARCH_EXYNOS5
{
.chip = {
.base = EXYNOS5_GPE0(0),
.ngpio = EXYNOS5_GPIO_E0_NR,
.label = "GPE0",
},
}, {
.chip = {
.base = EXYNOS5_GPE1(0),
.ngpio = EXYNOS5_GPIO_E1_NR,
.label = "GPE1",
},
}, {
.chip = {
.base = EXYNOS5_GPF0(0),
.ngpio = EXYNOS5_GPIO_F0_NR,
.label = "GPF0",
},
}, {
.chip = {
.base = EXYNOS5_GPF1(0),
.ngpio = EXYNOS5_GPIO_F1_NR,
.label = "GPF1",
},
}, {
.chip = {
.base = EXYNOS5_GPG0(0),
.ngpio = EXYNOS5_GPIO_G0_NR,
.label = "GPG0",
},
}, {
.chip = {
.base = EXYNOS5_GPG1(0),
.ngpio = EXYNOS5_GPIO_G1_NR,
.label = "GPG1",
},
}, {
.chip = {
.base = EXYNOS5_GPG2(0),
.ngpio = EXYNOS5_GPIO_G2_NR,
.label = "GPG2",
},
}, {
.chip = {
.base = EXYNOS5_GPH0(0),
.ngpio = EXYNOS5_GPIO_H0_NR,
.label = "GPH0",
},
}, {
.chip = {
.base = EXYNOS5_GPH1(0),
.ngpio = EXYNOS5_GPIO_H1_NR,
.label = "GPH1",
},
},
#endif
};
static struct samsung_gpio_chip exynos5_gpios_3[] = {
#ifdef CONFIG_ARCH_EXYNOS5
{
.chip = {
.base = EXYNOS5_GPV0(0),
.ngpio = EXYNOS5_GPIO_V0_NR,
.label = "GPV0",
},
}, {
.chip = {
.base = EXYNOS5_GPV1(0),
.ngpio = EXYNOS5_GPIO_V1_NR,
.label = "GPV1",
},
}, {
.chip = {
.base = EXYNOS5_GPV2(0),
.ngpio = EXYNOS5_GPIO_V2_NR,
.label = "GPV2",
},
}, {
.chip = {
.base = EXYNOS5_GPV3(0),
.ngpio = EXYNOS5_GPIO_V3_NR,
.label = "GPV3",
},
}, {
.chip = {
.base = EXYNOS5_GPV4(0),
.ngpio = EXYNOS5_GPIO_V4_NR,
.label = "GPV4",
},
},
#endif
};
static struct samsung_gpio_chip exynos5_gpios_4[] = {
#ifdef CONFIG_ARCH_EXYNOS5
{
.chip = {
.base = EXYNOS5_GPZ(0),
.ngpio = EXYNOS5_GPIO_Z_NR,
.label = "GPZ",
},
},
#endif
};
#if defined(CONFIG_ARCH_EXYNOS) && defined(CONFIG_OF)
static int exynos_gpio_xlate(struct gpio_chip *gc,
const struct of_phandle_args *gpiospec, u32 *flags)
{
unsigned int pin;
@ -2413,13 +2685,13 @@ static int exynos4_gpio_xlate(struct gpio_chip *gc,
return gpiospec->args[0];
}
static const struct of_device_id exynos4_gpio_dt_match[] __initdata = {
static const struct of_device_id exynos_gpio_dt_match[] __initdata = {
{ .compatible = "samsung,exynos4-gpio", },
{}
};
static __init void exynos4_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
u64 base, u64 offset)
static __init void exynos_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
u64 base, u64 offset)
{
struct gpio_chip *gc = &chip->chip;
u64 address;
@ -2429,28 +2701,29 @@ static __init void exynos4_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
address = chip->base ? base + ((u32)chip->base & 0xfff) : base + offset;
gc->of_node = of_find_matching_node_by_address(NULL,
exynos4_gpio_dt_match, address);
exynos_gpio_dt_match, address);
if (!gc->of_node) {
pr_info("gpio: device tree node not found for gpio controller"
" with base address %08llx\n", address);
return;
}
gc->of_gpio_n_cells = 4;
gc->of_xlate = exynos4_gpio_xlate;
gc->of_xlate = exynos_gpio_xlate;
}
#elif defined(CONFIG_ARCH_EXYNOS4)
static __init void exynos4_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
u64 base, u64 offset)
#elif defined(CONFIG_ARCH_EXYNOS)
static __init void exynos_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
u64 base, u64 offset)
{
return;
}
#endif /* defined(CONFIG_ARCH_EXYNOS4) && defined(CONFIG_OF) */
#endif /* defined(CONFIG_ARCH_EXYNOS) && defined(CONFIG_OF) */
/* TODO: cleanup soc_is_* */
static __init int samsung_gpiolib_init(void)
{
struct samsung_gpio_chip *chip;
int i, nr_chips;
void __iomem *gpio_base1, *gpio_base2, *gpio_base3, *gpio_base4;
int group = 0;
samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
@ -2524,11 +2797,11 @@ static __init int samsung_gpiolib_init(void)
for (i = 0; i < nr_chips; i++, chip++) {
if (!chip->config) {
chip->config = &exynos4_gpio_cfg;
chip->config = &exynos_gpio_cfg;
chip->group = group++;
}
#ifdef CONFIG_CPU_EXYNOS4210
exynos4_gpiolib_attach_ofnode(chip,
exynos_gpiolib_attach_ofnode(chip,
EXYNOS4_PA_GPIO1, i * 0x20);
#endif
}
@ -2540,11 +2813,11 @@ static __init int samsung_gpiolib_init(void)
for (i = 0; i < nr_chips; i++, chip++) {
if (!chip->config) {
chip->config = &exynos4_gpio_cfg;
chip->config = &exynos_gpio_cfg;
chip->group = group++;
}
#ifdef CONFIG_CPU_EXYNOS4210
exynos4_gpiolib_attach_ofnode(chip,
exynos_gpiolib_attach_ofnode(chip,
EXYNOS4_PA_GPIO2, i * 0x20);
#endif
}
@ -2556,11 +2829,11 @@ static __init int samsung_gpiolib_init(void)
for (i = 0; i < nr_chips; i++, chip++) {
if (!chip->config) {
chip->config = &exynos4_gpio_cfg;
chip->config = &exynos_gpio_cfg;
chip->group = group++;
}
#ifdef CONFIG_CPU_EXYNOS4210
exynos4_gpiolib_attach_ofnode(chip,
exynos_gpiolib_attach_ofnode(chip,
EXYNOS4_PA_GPIO3, i * 0x20);
#endif
}
@ -2570,12 +2843,122 @@ static __init int samsung_gpiolib_init(void)
s5p_register_gpioint_bank(IRQ_GPIO_XA, 0, IRQ_GPIO1_NR_GROUPS);
s5p_register_gpioint_bank(IRQ_GPIO_XB, IRQ_GPIO1_NR_GROUPS, IRQ_GPIO2_NR_GROUPS);
#endif
} else if (soc_is_exynos5250()) {
#ifdef CONFIG_SOC_EXYNOS5250
void __iomem *gpx_base;
/* gpio part1 */
gpio_base1 = ioremap(EXYNOS5_PA_GPIO1, SZ_4K);
if (gpio_base1 == NULL) {
pr_err("unable to ioremap for gpio_base1\n");
goto err_ioremap1;
}
/* need to set base address for gpx */
chip = &exynos5_gpios_1[20];
gpx_base = gpio_base1 + 0xC00;
for (i = 0; i < 4; i++, chip++, gpx_base += 0x20)
chip->base = gpx_base;
chip = exynos5_gpios_1;
nr_chips = ARRAY_SIZE(exynos5_gpios_1);
for (i = 0; i < nr_chips; i++, chip++) {
if (!chip->config) {
chip->config = &exynos_gpio_cfg;
chip->group = group++;
}
exynos_gpiolib_attach_ofnode(chip,
EXYNOS5_PA_GPIO1, i * 0x20);
}
samsung_gpiolib_add_4bit_chips(exynos5_gpios_1,
nr_chips, gpio_base1);
/* gpio part2 */
gpio_base2 = ioremap(EXYNOS5_PA_GPIO2, SZ_4K);
if (gpio_base2 == NULL) {
pr_err("unable to ioremap for gpio_base2\n");
goto err_ioremap2;
}
chip = exynos5_gpios_2;
nr_chips = ARRAY_SIZE(exynos5_gpios_2);
for (i = 0; i < nr_chips; i++, chip++) {
if (!chip->config) {
chip->config = &exynos_gpio_cfg;
chip->group = group++;
}
exynos_gpiolib_attach_ofnode(chip,
EXYNOS5_PA_GPIO2, i * 0x20);
}
samsung_gpiolib_add_4bit_chips(exynos5_gpios_2,
nr_chips, gpio_base2);
/* gpio part3 */
gpio_base3 = ioremap(EXYNOS5_PA_GPIO3, SZ_4K);
if (gpio_base3 == NULL) {
pr_err("unable to ioremap for gpio_base3\n");
goto err_ioremap3;
}
/* need to set base address for gpv */
exynos5_gpios_3[0].base = gpio_base3;
exynos5_gpios_3[1].base = gpio_base3 + 0x20;
exynos5_gpios_3[2].base = gpio_base3 + 0x60;
exynos5_gpios_3[3].base = gpio_base3 + 0x80;
exynos5_gpios_3[4].base = gpio_base3 + 0xC0;
chip = exynos5_gpios_3;
nr_chips = ARRAY_SIZE(exynos5_gpios_3);
for (i = 0; i < nr_chips; i++, chip++) {
if (!chip->config) {
chip->config = &exynos_gpio_cfg;
chip->group = group++;
}
exynos_gpiolib_attach_ofnode(chip,
EXYNOS5_PA_GPIO3, i * 0x20);
}
samsung_gpiolib_add_4bit_chips(exynos5_gpios_3,
nr_chips, gpio_base3);
/* gpio part4 */
gpio_base4 = ioremap(EXYNOS5_PA_GPIO4, SZ_4K);
if (gpio_base4 == NULL) {
pr_err("unable to ioremap for gpio_base4\n");
goto err_ioremap4;
}
chip = exynos5_gpios_4;
nr_chips = ARRAY_SIZE(exynos5_gpios_4);
for (i = 0; i < nr_chips; i++, chip++) {
if (!chip->config) {
chip->config = &exynos_gpio_cfg;
chip->group = group++;
}
exynos_gpiolib_attach_ofnode(chip,
EXYNOS5_PA_GPIO4, i * 0x20);
}
samsung_gpiolib_add_4bit_chips(exynos5_gpios_4,
nr_chips, gpio_base4);
#endif /* CONFIG_SOC_EXYNOS5250 */
} else {
WARN(1, "Unknown SoC in gpio-samsung, no GPIOs added\n");
return -ENODEV;
}
return 0;
err_ioremap4:
iounmap(gpio_base3);
err_ioremap3:
iounmap(gpio_base2);
err_ioremap2:
iounmap(gpio_base1);
err_ioremap1:
return -ENOMEM;
}
core_initcall(samsung_gpiolib_init);