diff options
Diffstat (limited to 'drivers/gpio')
| -rw-r--r-- | drivers/gpio/gpio-samsung.c | 25 |
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c index 88f41e51565b..01f7fe955590 100644 --- a/drivers/gpio/gpio-samsung.c +++ b/drivers/gpio/gpio-samsung.c @@ -42,12 +42,6 @@ #include <plat/gpio-fns.h> #include <plat/pm.h> -#ifndef DEBUG_GPIO -#define gpio_dbg(x...) do { } while (0) -#else -#define gpio_dbg(x...) printk(KERN_DEBUG x) -#endif - int samsung_gpio_setpull_updown(struct samsung_gpio_chip *chip, unsigned int off, samsung_gpio_pull_t pull) { @@ -596,10 +590,13 @@ static int samsung_gpiolib_4bit_input(struct gpio_chip *chip, unsigned long con; con = __raw_readl(base + GPIOCON_OFF); - con &= ~(0xf << con_4bit_shift(offset)); + if (ourchip->bitmap_gpio_int & BIT(offset)) + con |= 0xf << con_4bit_shift(offset); + else + con &= ~(0xf << con_4bit_shift(offset)); __raw_writel(con, base + GPIOCON_OFF); - gpio_dbg("%s: %p: CON now %08lx\n", __func__, base, con); + pr_debug("%s: %p: CON now %08lx\n", __func__, base, con); return 0; } @@ -627,7 +624,7 @@ static int samsung_gpiolib_4bit_output(struct gpio_chip *chip, __raw_writel(con, base + GPIOCON_OFF); __raw_writel(dat, base + GPIODAT_OFF); - gpio_dbg("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat); + pr_debug("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat); return 0; } @@ -671,7 +668,7 @@ static int samsung_gpiolib_4bit2_input(struct gpio_chip *chip, con &= ~(0xf << con_4bit_shift(offset)); __raw_writel(con, regcon); - gpio_dbg("%s: %p: CON %08lx\n", __func__, base, con); + pr_debug("%s: %p: CON %08lx\n", __func__, base, con); return 0; } @@ -706,7 +703,7 @@ static int samsung_gpiolib_4bit2_output(struct gpio_chip *chip, __raw_writel(con, regcon); __raw_writel(dat, base + GPIODAT_OFF); - gpio_dbg("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat); + pr_debug("%s: %p: CON %08lx, DAT %08lx\n", __func__, base, con, dat); return 0; } @@ -926,10 +923,10 @@ static void __init samsung_gpiolib_add(struct samsung_gpio_chip *chip) #ifdef CONFIG_PM if (chip->pm != NULL) { if (!chip->pm->save || !chip->pm->resume) - printk(KERN_ERR "gpio: %s has missing PM functions\n", + pr_err("gpio: %s has missing PM functions\n", gc->label); } else - printk(KERN_ERR "gpio: %s has no PM function\n", gc->label); + pr_err("gpio: %s has no PM function\n", gc->label); #endif /* gpiochip_add() prints own failure message on error. */ @@ -1081,6 +1078,8 @@ static void __init samsung_gpiolib_add_4bit_chips(struct samsung_gpio_chip *chip if ((base != NULL) && (chip->base == NULL)) chip->base = base + ((i) * 0x20); + chip->bitmap_gpio_int = 0; + samsung_gpiolib_add(chip); } } |