diff options
| -rw-r--r-- | arch/arm/plat-nomadik/Kconfig | 6 | ||||
| -rw-r--r-- | arch/arm/plat-nomadik/gpio.c | 76 |
2 files changed, 3 insertions, 79 deletions
diff --git a/arch/arm/plat-nomadik/Kconfig b/arch/arm/plat-nomadik/Kconfig index ad25c963d43..187f4e84bb2 100644 --- a/arch/arm/plat-nomadik/Kconfig +++ b/arch/arm/plat-nomadik/Kconfig @@ -25,10 +25,4 @@ config NOMADIK_GPIO help Support for the Nomadik GPIO controller. -config NOMADIK_GPIO_PM - bool - depends on NOMADIK_GPIO && PM - help - Support PM for the Nomadik GPIO controller. - endif diff --git a/arch/arm/plat-nomadik/gpio.c b/arch/arm/plat-nomadik/gpio.c index acc9de21324..5e6653f6328 100644 --- a/arch/arm/plat-nomadik/gpio.c +++ b/arch/arm/plat-nomadik/gpio.c @@ -35,18 +35,6 @@ * Symbols in this file are called "nmk_gpio" for "nomadik gpio" */ -static const u32 backup_regs[] = { - NMK_GPIO_PDIS, - NMK_GPIO_DIR, - NMK_GPIO_AFSLA, - NMK_GPIO_AFSLB, - NMK_GPIO_SLPC, - NMK_GPIO_RIMSC, - NMK_GPIO_FIMSC, - NMK_GPIO_RWIMSC, - NMK_GPIO_FWIMSC, -}; - #define NMK_GPIO_PER_CHIP 32 struct nmk_gpio_chip { @@ -62,9 +50,6 @@ struct nmk_gpio_chip { /* Keep track of configured edges */ u32 edge_rising; u32 edge_falling; - u32 backup[ARRAY_SIZE(backup_regs)]; - /* Bitmap, 1 = pull up, 0 = pull down */ - u32 pull; }; static struct nmk_gpio_chip * @@ -117,13 +102,10 @@ static void __nmk_gpio_set_pull(struct nmk_gpio_chip *nmk_chip, pdis &= ~bit; writel(pdis, nmk_chip->addr + NMK_GPIO_PDIS); - if (pull == NMK_GPIO_PULL_UP) { - nmk_chip->pull |= bit; + if (pull == NMK_GPIO_PULL_UP) writel(bit, nmk_chip->addr + NMK_GPIO_DATS); - } else if (pull == NMK_GPIO_PULL_DOWN) { - nmk_chip->pull &= ~bit; + else if (pull == NMK_GPIO_PULL_DOWN) writel(bit, nmk_chip->addr + NMK_GPIO_DATC); - } } static void __nmk_gpio_make_input(struct nmk_gpio_chip *nmk_chip, @@ -991,64 +973,12 @@ out: return ret; } -#ifdef CONFIG_NOMADIK_GPIO_PM -static int nmk_gpio_pm(struct platform_device *dev, bool suspend) -{ - struct nmk_gpio_chip *nmk_chip = platform_get_drvdata(dev); - int i; - u32 dir; - u32 dat; - - for (i = 0; i < ARRAY_SIZE(backup_regs); i++) { - if (suspend) - nmk_chip->backup[i] = readl(nmk_chip->addr + - backup_regs[i]); - else - writel(nmk_chip->backup[i], - nmk_chip->addr + backup_regs[i]); - } - - if (!suspend) { - /* - * Restore pull-up and pull-down on inputs and - * outputs. - */ - dir = readl(nmk_chip->addr + NMK_GPIO_DIR); - dat = readl(nmk_chip->addr + NMK_GPIO_DAT); - - writel((nmk_chip->pull & ~dir) | - (dat & dir), - nmk_chip->addr + NMK_GPIO_DATS); - - writel((~nmk_chip->pull & ~dir) | - (~dat & dir), - nmk_chip->addr + NMK_GPIO_DATC); - } - return 0; -} - -static int nmk_gpio_suspend(struct platform_device *dev, pm_message_t state) -{ - return nmk_gpio_pm(dev, true); -} - -static int nmk_gpio_resume(struct platform_device *dev) -{ - return nmk_gpio_pm(dev, false); -} -#else -#define nmk_gpio_suspend NULL -#define nmk_gpio_resume NULL -#endif - static struct platform_driver nmk_gpio_driver = { .driver = { .owner = THIS_MODULE, .name = "gpio", - }, + }, .probe = nmk_gpio_probe, - .suspend = nmk_gpio_suspend, - .resume = nmk_gpio_resume, }; static int __init nmk_gpio_init(void) |