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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-05 18:21:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-05 18:21:21 -0700
commitc861cd3e92d92ae946e19099f198018fcb4fd887 (patch)
treefab678a30a85cf80038c560221d6ab01812a3891 /drivers/gpio
parent7abec10c623d9e0416dab6919a0ea22e6283516b (diff)
parentb8bc83971cc20cae3c3b65c26a804f350d74960c (diff)
Merge branch 'next/devel2' of git://git.linaro.org/people/arnd/arm-soc
* 'next/devel2' of git://git.linaro.org/people/arnd/arm-soc: (30 commits) ARM: mmp: register internal sram bank ARM: mmp: register audio sram bank ARM: mmp: add sram allocator gpio/samsung: Complain loudly if we don't know the SoC ARM: S3C64XX: Fix SoC identification for S3C64xx devices ARM: S3C2443: Remove redundant s3c_register_clocks call for init_clocks ARM: S3C24XX: Add devname for hsmmc1 pclk ARM: S3C24XX: use clk_get_rate to init fclk in common_setup_clocks ARM: S3C2443: Accommodate cpufreq frequency scheme in armdiv ARM: S3C2443: handle unset armdiv values gracefully ARM: S3C2443: Add get_rate operation for clk_armdiv ARM: S3C2416: Add comment describing the armdiv/armclk ARM: S3C2443: Move clk_arm and clk_armdiv to common code ARM: S3C24XX: Add infrastructure to transmit armdiv to common code ARM: S3C2416: Add armdiv_mask constant ARM: EXYNOS4: Add support for M-5MOLS camera on Nuri board ARM: EXYNOS4: Enable MFC on ORIGEN ARM: SAMSUNG: Add support s3c2416-adc for S3C2416/S3C2450 ARM: SAMSUNG: Add support s3c2443-adc for S3C2443 ARM: SAMSUNG: Allow overriding of adc device name for S3C24XX ...
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-samsung.c48
1 files changed, 36 insertions, 12 deletions
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index b6be77ae4973..866251852719 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -318,6 +318,7 @@ static unsigned samsung_gpio_getcfg_4bit(struct samsung_gpio_chip *chip,
return S3C_GPIO_SPECIAL(con);
}
+#ifdef CONFIG_PLAT_S3C24XX
/*
* s3c24xx_gpio_setcfg_abank - S3C24XX style GPIO configuration (Bank A)
* @chip: The gpio chip that is being configured.
@@ -379,7 +380,9 @@ static unsigned s3c24xx_gpio_getcfg_abank(struct samsung_gpio_chip *chip,
return S3C_GPIO_SFN(con);
}
+#endif
+#if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
static int s5p64x0_gpio_setcfg_rbank(struct samsung_gpio_chip *chip,
unsigned int off, unsigned int cfg)
{
@@ -417,6 +420,7 @@ static int s5p64x0_gpio_setcfg_rbank(struct samsung_gpio_chip *chip,
return 0;
}
+#endif
static void __init samsung_gpiolib_set_cfg(struct samsung_gpio_cfg *chipcfg,
int nr_chips)
@@ -438,10 +442,12 @@ struct samsung_gpio_cfg s3c24xx_gpiocfg_default = {
.get_config = samsung_gpio_getcfg_2bit,
};
+#ifdef CONFIG_PLAT_S3C24XX
static struct samsung_gpio_cfg s3c24xx_gpiocfg_banka = {
.set_config = s3c24xx_gpio_setcfg_abank,
.get_config = s3c24xx_gpio_getcfg_abank,
};
+#endif
static struct samsung_gpio_cfg exynos4_gpio_cfg = {
.set_pull = exynos4_gpio_setpull,
@@ -450,6 +456,7 @@ static struct samsung_gpio_cfg exynos4_gpio_cfg = {
.get_config = samsung_gpio_getcfg_4bit,
};
+#if defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450)
static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = {
.cfg_eint = 0x3,
.set_config = s5p64x0_gpio_setcfg_rbank,
@@ -457,6 +464,7 @@ static struct samsung_gpio_cfg s5p64x0_gpio_cfg_rbank = {
.set_pull = samsung_gpio_setpull_updown,
.get_pull = samsung_gpio_getpull_updown,
};
+#endif
static struct samsung_gpio_cfg samsung_gpio_cfgs[] = {
{
@@ -482,7 +490,14 @@ static struct samsung_gpio_cfg samsung_gpio_cfgs[] = {
}, {
.set_config = samsung_gpio_setcfg_2bit,
.get_config = samsung_gpio_getcfg_2bit,
- },
+ }, {
+ .set_pull = exynos4_gpio_setpull,
+ .get_pull = exynos4_gpio_getpull,
+ }, {
+ .cfg_eint = 0x3,
+ .set_pull = exynos4_gpio_setpull,
+ .get_pull = exynos4_gpio_getpull,
+ }
};
/*
@@ -682,6 +697,7 @@ static int samsung_gpiolib_4bit2_output(struct gpio_chip *chip,
return 0;
}
+#ifdef CONFIG_PLAT_S3C24XX
/* The next set of routines are for the case of s3c24xx bank a */
static int s3c24xx_gpiolib_banka_input(struct gpio_chip *chip, unsigned offset)
@@ -717,6 +733,7 @@ static int s3c24xx_gpiolib_banka_output(struct gpio_chip *chip,
local_irq_restore(flags);
return 0;
}
+#endif
/* The next set of routines are for the case of s5p64x0 bank r */
@@ -914,6 +931,10 @@ static void __init s3c24xx_gpiolib_add_chips(struct samsung_gpio_chip *chip,
struct gpio_chip *gc = &chip->chip;
for (i = 0 ; i < nr_chips; i++, chip++) {
+ /* skip banks not present on SoC */
+ if (chip->chip.base >= S3C_GPIO_END)
+ continue;
+
if (!chip->config)
chip->config = &s3c24xx_gpiocfg_default;
if (!chip->pm)
@@ -2249,49 +2270,49 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = {
.label = "GPL2",
},
}, {
- .config = &samsung_gpio_cfgs[0],
+ .config = &samsung_gpio_cfgs[8],
.chip = {
.base = EXYNOS4_GPY0(0),
.ngpio = EXYNOS4_GPIO_Y0_NR,
.label = "GPY0",
},
}, {
- .config = &samsung_gpio_cfgs[0],
+ .config = &samsung_gpio_cfgs[8],
.chip = {
.base = EXYNOS4_GPY1(0),
.ngpio = EXYNOS4_GPIO_Y1_NR,
.label = "GPY1",
},
}, {
- .config = &samsung_gpio_cfgs[0],
+ .config = &samsung_gpio_cfgs[8],
.chip = {
.base = EXYNOS4_GPY2(0),
.ngpio = EXYNOS4_GPIO_Y2_NR,
.label = "GPY2",
},
}, {
- .config = &samsung_gpio_cfgs[0],
+ .config = &samsung_gpio_cfgs[8],
.chip = {
.base = EXYNOS4_GPY3(0),
.ngpio = EXYNOS4_GPIO_Y3_NR,
.label = "GPY3",
},
}, {
- .config = &samsung_gpio_cfgs[0],
+ .config = &samsung_gpio_cfgs[8],
.chip = {
.base = EXYNOS4_GPY4(0),
.ngpio = EXYNOS4_GPIO_Y4_NR,
.label = "GPY4",
},
}, {
- .config = &samsung_gpio_cfgs[0],
+ .config = &samsung_gpio_cfgs[8],
.chip = {
.base = EXYNOS4_GPY5(0),
.ngpio = EXYNOS4_GPIO_Y5_NR,
.label = "GPY5",
},
}, {
- .config = &samsung_gpio_cfgs[0],
+ .config = &samsung_gpio_cfgs[8],
.chip = {
.base = EXYNOS4_GPY6(0),
.ngpio = EXYNOS4_GPIO_Y6_NR,
@@ -2299,7 +2320,7 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = {
},
}, {
.base = (S5P_VA_GPIO2 + 0xC00),
- .config = &samsung_gpio_cfgs[3],
+ .config = &samsung_gpio_cfgs[9],
.irq_base = IRQ_EINT(0),
.chip = {
.base = EXYNOS4_GPX0(0),
@@ -2309,7 +2330,7 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = {
},
}, {
.base = (S5P_VA_GPIO2 + 0xC20),
- .config = &samsung_gpio_cfgs[3],
+ .config = &samsung_gpio_cfgs[9],
.irq_base = IRQ_EINT(8),
.chip = {
.base = EXYNOS4_GPX1(0),
@@ -2319,7 +2340,7 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = {
},
}, {
.base = (S5P_VA_GPIO2 + 0xC40),
- .config = &samsung_gpio_cfgs[3],
+ .config = &samsung_gpio_cfgs[9],
.irq_base = IRQ_EINT(16),
.chip = {
.base = EXYNOS4_GPX2(0),
@@ -2329,7 +2350,7 @@ static struct samsung_gpio_chip exynos4_gpios_2[] = {
},
}, {
.base = (S5P_VA_GPIO2 + 0xC60),
- .config = &samsung_gpio_cfgs[3],
+ .config = &samsung_gpio_cfgs[9],
.irq_base = IRQ_EINT(24),
.chip = {
.base = EXYNOS4_GPX3(0),
@@ -2465,6 +2486,9 @@ 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 {
+ WARN(1, "Unknown SoC in gpio-samsung, no GPIOs added\n");
+ return -ENODEV;
}
return 0;