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gpio: samsung: refactor gpiolib init for exynos4/5 

Only code move, no functional change.

Main reason to do this was to get rid of the warnings:

drivers/gpio/gpio-samsung.c: In function 'samsung_gpiolib_init':
drivers/gpio/gpio-samsung.c:2974:1: warning: label 'err_ioremap4' defined but not used [-Wunused-label]
drivers/gpio/gpio-samsung.c:2722:47: warning: unused variable 'gpio_base4' [-Wunused-variable]

without adding more ifdef mess.

I think this whole file would do well being coverted over to a platform
driver and moving most of the tables out to SoC code and/or device trees,
but since that changes init ordering it needs to be done with some care,
i.e. not at this time.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
hifive-unleashed-5.1
Olof Johansson 2012-04-08 12:23:27 -07:00 committed by Grant Likely
parent c8f925b69f
commit fd454997d6
1 changed files with 215 additions and 188 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

181
drivers/gpio/gpio-samsung.c
View File

@ -2714,78 +2714,13 @@ static __init void exynos_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
}
#endif /* defined(CONFIG_ARCH_EXYNOS) && defined(CONFIG_OF) */
/* TODO: cleanup soc_is_* */
static __init int samsung_gpiolib_init(void)
static __init void exynos4_gpiolib_init(void)
{
#ifdef CONFIG_CPU_EXYNOS4210
struct samsung_gpio_chip *chip;
int i, nr_chips;
void __iomem *gpio_base1, *gpio_base2, *gpio_base3, *gpio_base4;
void __iomem *gpio_base1, *gpio_base2, *gpio_base3;
int group = 0;
samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
if (soc_is_s3c24xx()) {
s3c24xx_gpiolib_add_chips(s3c24xx_gpios,
ARRAY_SIZE(s3c24xx_gpios), S3C24XX_VA_GPIO);
} else if (soc_is_s3c64xx()) {
samsung_gpiolib_add_2bit_chips(s3c64xx_gpios_2bit,
ARRAY_SIZE(s3c64xx_gpios_2bit),
S3C64XX_VA_GPIO + 0xE0, 0x20);
samsung_gpiolib_add_4bit_chips(s3c64xx_gpios_4bit,
ARRAY_SIZE(s3c64xx_gpios_4bit),
S3C64XX_VA_GPIO);
samsung_gpiolib_add_4bit2_chips(s3c64xx_gpios_4bit2,
ARRAY_SIZE(s3c64xx_gpios_4bit2));
} else if (soc_is_s5p6440()) {
samsung_gpiolib_add_2bit_chips(s5p6440_gpios_2bit,
ARRAY_SIZE(s5p6440_gpios_2bit), NULL, 0x0);
samsung_gpiolib_add_4bit_chips(s5p6440_gpios_4bit,
ARRAY_SIZE(s5p6440_gpios_4bit), S5P_VA_GPIO);
samsung_gpiolib_add_4bit2_chips(s5p6440_gpios_4bit2,
ARRAY_SIZE(s5p6440_gpios_4bit2));
s5p64x0_gpiolib_add_rbank(s5p6440_gpios_rbank,
ARRAY_SIZE(s5p6440_gpios_rbank));
} else if (soc_is_s5p6450()) {
samsung_gpiolib_add_2bit_chips(s5p6450_gpios_2bit,
ARRAY_SIZE(s5p6450_gpios_2bit), NULL, 0x0);
samsung_gpiolib_add_4bit_chips(s5p6450_gpios_4bit,
ARRAY_SIZE(s5p6450_gpios_4bit), S5P_VA_GPIO);
samsung_gpiolib_add_4bit2_chips(s5p6450_gpios_4bit2,
ARRAY_SIZE(s5p6450_gpios_4bit2));
s5p64x0_gpiolib_add_rbank(s5p6450_gpios_rbank,
ARRAY_SIZE(s5p6450_gpios_rbank));
} else if (soc_is_s5pc100()) {
group = 0;
chip = s5pc100_gpios_4bit;
nr_chips = ARRAY_SIZE(s5pc100_gpios_4bit);
for (i = 0; i < nr_chips; i++, chip++) {
if (!chip->config) {
chip->config = &samsung_gpio_cfgs[3];
chip->group = group++;
}
}
samsung_gpiolib_add_4bit_chips(s5pc100_gpios_4bit, nr_chips, S5P_VA_GPIO);
#if defined(CONFIG_CPU_S5PC100) && defined(CONFIG_S5P_GPIO_INT)
s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
#endif
} else if (soc_is_s5pv210()) {
group = 0;
chip = s5pv210_gpios_4bit;
nr_chips = ARRAY_SIZE(s5pv210_gpios_4bit);
for (i = 0; i < nr_chips; i++, chip++) {
if (!chip->config) {
chip->config = &samsung_gpio_cfgs[3];
chip->group = group++;
}
}
samsung_gpiolib_add_4bit_chips(s5pv210_gpios_4bit, nr_chips, S5P_VA_GPIO);
#if defined(CONFIG_CPU_S5PV210) && defined(CONFIG_S5P_GPIO_INT)
s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
#endif
} else if (soc_is_exynos4210()) {
#ifdef CONFIG_CPU_EXYNOS4210
void __iomem *gpx_base;
/* gpio part1 */
@ -2862,9 +2797,24 @@ static __init int samsung_gpiolib_init(void)
s5p_register_gpioint_bank(IRQ_GPIO_XB, IRQ_GPIO1_NR_GROUPS, IRQ_GPIO2_NR_GROUPS);
#endif
return;
err_ioremap3:
iounmap(gpio_base2);
err_ioremap2:
iounmap(gpio_base1);
err_ioremap1:
return;
#endif /* CONFIG_CPU_EXYNOS4210 */
} else if (soc_is_exynos5250()) {
}
static __init void exynos5_gpiolib_init(void)
{
#ifdef CONFIG_SOC_EXYNOS5250
struct samsung_gpio_chip *chip;
int i, nr_chips;
void __iomem *gpio_base1, *gpio_base2, *gpio_base3, *gpio_base4;
int group = 0;
void __iomem *gpx_base;
/* gpio part1 */
@ -2963,13 +2913,7 @@ static __init int samsung_gpiolib_init(void)
}
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;
return;
err_ioremap4:
iounmap(gpio_base3);
@ -2978,7 +2922,90 @@ err_ioremap3:
err_ioremap2:
iounmap(gpio_base1);
err_ioremap1:
return -ENOMEM;
return;
#endif /* CONFIG_SOC_EXYNOS5250 */
}
/* TODO: cleanup soc_is_* */
static __init int samsung_gpiolib_init(void)
{
struct samsung_gpio_chip *chip;
int i, nr_chips;
int group = 0;
samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
if (soc_is_s3c24xx()) {
s3c24xx_gpiolib_add_chips(s3c24xx_gpios,
ARRAY_SIZE(s3c24xx_gpios), S3C24XX_VA_GPIO);
} else if (soc_is_s3c64xx()) {
samsung_gpiolib_add_2bit_chips(s3c64xx_gpios_2bit,
ARRAY_SIZE(s3c64xx_gpios_2bit),
S3C64XX_VA_GPIO + 0xE0, 0x20);
samsung_gpiolib_add_4bit_chips(s3c64xx_gpios_4bit,
ARRAY_SIZE(s3c64xx_gpios_4bit),
S3C64XX_VA_GPIO);
samsung_gpiolib_add_4bit2_chips(s3c64xx_gpios_4bit2,
ARRAY_SIZE(s3c64xx_gpios_4bit2));
} else if (soc_is_s5p6440()) {
samsung_gpiolib_add_2bit_chips(s5p6440_gpios_2bit,
ARRAY_SIZE(s5p6440_gpios_2bit), NULL, 0x0);
samsung_gpiolib_add_4bit_chips(s5p6440_gpios_4bit,
ARRAY_SIZE(s5p6440_gpios_4bit), S5P_VA_GPIO);
samsung_gpiolib_add_4bit2_chips(s5p6440_gpios_4bit2,
ARRAY_SIZE(s5p6440_gpios_4bit2));
s5p64x0_gpiolib_add_rbank(s5p6440_gpios_rbank,
ARRAY_SIZE(s5p6440_gpios_rbank));
} else if (soc_is_s5p6450()) {
samsung_gpiolib_add_2bit_chips(s5p6450_gpios_2bit,
ARRAY_SIZE(s5p6450_gpios_2bit), NULL, 0x0);
samsung_gpiolib_add_4bit_chips(s5p6450_gpios_4bit,
ARRAY_SIZE(s5p6450_gpios_4bit), S5P_VA_GPIO);
samsung_gpiolib_add_4bit2_chips(s5p6450_gpios_4bit2,
ARRAY_SIZE(s5p6450_gpios_4bit2));
s5p64x0_gpiolib_add_rbank(s5p6450_gpios_rbank,
ARRAY_SIZE(s5p6450_gpios_rbank));
} else if (soc_is_s5pc100()) {
group = 0;
chip = s5pc100_gpios_4bit;
nr_chips = ARRAY_SIZE(s5pc100_gpios_4bit);
for (i = 0; i < nr_chips; i++, chip++) {
if (!chip->config) {
chip->config = &samsung_gpio_cfgs[3];
chip->group = group++;
}
}
samsung_gpiolib_add_4bit_chips(s5pc100_gpios_4bit, nr_chips, S5P_VA_GPIO);
#if defined(CONFIG_CPU_S5PC100) && defined(CONFIG_S5P_GPIO_INT)
s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
#endif
} else if (soc_is_s5pv210()) {
group = 0;
chip = s5pv210_gpios_4bit;
nr_chips = ARRAY_SIZE(s5pv210_gpios_4bit);
for (i = 0; i < nr_chips; i++, chip++) {
if (!chip->config) {
chip->config = &samsung_gpio_cfgs[3];
chip->group = group++;
}
}
samsung_gpiolib_add_4bit_chips(s5pv210_gpios_4bit, nr_chips, S5P_VA_GPIO);
#if defined(CONFIG_CPU_S5PV210) && defined(CONFIG_S5P_GPIO_INT)
s5p_register_gpioint_bank(IRQ_GPIOINT, 0, S5P_GPIOINT_GROUP_MAXNR);
#endif
} else if (soc_is_exynos4210()) {
exynos4_gpiolib_init();
} else if (soc_is_exynos5250()) {
exynos5_gpiolib_init();
} else {
WARN(1, "Unknown SoC in gpio-samsung, no GPIOs added\n");
return -ENODEV;
}
return 0;
}
core_initcall(samsung_gpiolib_init);