diff options
| author | Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> | 2011-11-13 13:00:58 +0800 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2011-11-29 15:46:12 +0000 |
| commit | 619d4a4b40f44c1b45263a0e0c9598e3139a1fec (patch) | |
| tree | 1cf30395b134a16812a18fb58e47f125920ad29d /arch/arm/mach-at91/gpio.c | |
| parent | ed20178d6266e0b9c9370e6862ac1eadadb8b321 (diff) | |
ARM: at91: switch gpio clock to clkdev
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'arch/arm/mach-at91/gpio.c')
| -rw-r--r-- | arch/arm/mach-at91/gpio.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c index cedb753f4cad..4059f07eb955 100644 --- a/arch/arm/mach-at91/gpio.c +++ b/arch/arm/mach-at91/gpio.c @@ -31,6 +31,7 @@ struct at91_gpio_chip { struct at91_gpio_chip *next; /* Bank sharing same clock */ struct at91_gpio_bank *bank; /* Bank definition */ void __iomem *regbase; /* Base of register bank */ + struct clk *clock; /* associated clock */ }; #define to_at91_gpio_chip(c) container_of(c, struct at91_gpio_chip, chip) @@ -58,11 +59,11 @@ static int at91_gpiolib_direction_input(struct gpio_chip *chip, } static struct at91_gpio_chip gpio_chip[] = { - AT91_GPIO_CHIP("A", 0x00 + PIN_BASE, 32), - AT91_GPIO_CHIP("B", 0x20 + PIN_BASE, 32), - AT91_GPIO_CHIP("C", 0x40 + PIN_BASE, 32), - AT91_GPIO_CHIP("D", 0x60 + PIN_BASE, 32), - AT91_GPIO_CHIP("E", 0x80 + PIN_BASE, 32), + AT91_GPIO_CHIP("pioA", 0x00 + PIN_BASE, 32), + AT91_GPIO_CHIP("pioB", 0x20 + PIN_BASE, 32), + AT91_GPIO_CHIP("pioC", 0x40 + PIN_BASE, 32), + AT91_GPIO_CHIP("pioD", 0x60 + PIN_BASE, 32), + AT91_GPIO_CHIP("pioE", 0x80 + PIN_BASE, 32), }; static int gpio_banks; @@ -302,7 +303,7 @@ void at91_gpio_suspend(void) __raw_writel(wakeups[i], pio + PIO_IER); if (!wakeups[i]) - clk_disable(gpio_chip[i].bank->clock); + clk_disable(gpio_chip[i].clock); else { #ifdef CONFIG_PM_DEBUG printk(KERN_DEBUG "GPIO-%c may wake for %08x\n", 'A'+i, wakeups[i]); @@ -319,7 +320,7 @@ void at91_gpio_resume(void) void __iomem *pio = gpio_chip[i].regbase; if (!wakeups[i]) - clk_enable(gpio_chip[i].bank->clock); + clk_enable(gpio_chip[i].clock); __raw_writel(wakeups[i], pio + PIO_IDR); __raw_writel(backups[i], pio + PIO_IER); @@ -621,8 +622,14 @@ void __init at91_gpio_init(struct at91_gpio_bank *data, int nr_banks) continue; } + at91_gpio->clock = clk_get_sys(NULL, at91_gpio->chip.label); + if (!at91_gpio->clock) { + pr_err("at91_gpio.%d, failed to get clock, ignoring.\n", i); + continue; + } + /* enable PIO controller's clock */ - clk_enable(at91_gpio->bank->clock); + clk_enable(at91_gpio->clock); /* AT91SAM9263_ID_PIOCDE groups PIOC, PIOD, PIOE */ if (last && last->bank->id == at91_gpio->bank->id) |