diff options
Diffstat (limited to 'arch/arm/mach-s3c64xx/irq-pm.c')
| -rw-r--r-- | arch/arm/mach-s3c64xx/irq-pm.c | 43 |
1 files changed, 28 insertions, 15 deletions
diff --git a/arch/arm/mach-s3c64xx/irq-pm.c b/arch/arm/mach-s3c64xx/irq-pm.c index da1bec64b9d..ae4ea7601f6 100644 --- a/arch/arm/mach-s3c64xx/irq-pm.c +++ b/arch/arm/mach-s3c64xx/irq-pm.c @@ -12,17 +12,21 @@ * published by the Free Software Foundation. */ +/* + * NOTE: Code in this file is not used when booting with Device Tree support. + */ + #include <linux/kernel.h> -#include <linux/sysdev.h> +#include <linux/syscore_ops.h> #include <linux/interrupt.h> #include <linux/serial_core.h> +#include <linux/serial_s3c.h> #include <linux/irq.h> #include <linux/io.h> +#include <linux/of.h> #include <mach/map.h> -#include <plat/regs-serial.h> -#include <plat/regs-timer.h> #include <mach/regs-gpio.h> #include <plat/cpu.h> #include <plat/pm.h> @@ -43,7 +47,6 @@ static struct sleep_save irq_save[] = { SAVE_ITEM(S3C64XX_EINT0FLTCON2), SAVE_ITEM(S3C64XX_EINT0FLTCON3), SAVE_ITEM(S3C64XX_EINT0MASK), - SAVE_ITEM(S3C64XX_TINT_CSTAT), }; static struct irq_grp_save { @@ -52,9 +55,15 @@ static struct irq_grp_save { u32 mask; } eint_grp_save[5]; -static u32 irq_uart_mask[CONFIG_SERIAL_SAMSUNG_UARTS]; +#ifndef CONFIG_SERIAL_SAMSUNG_UARTS +#define SERIAL_SAMSUNG_UARTS 0 +#else +#define SERIAL_SAMSUNG_UARTS CONFIG_SERIAL_SAMSUNG_UARTS +#endif -static int s3c64xx_irq_pm_suspend(struct sys_device *dev, pm_message_t state) +static u32 irq_uart_mask[SERIAL_SAMSUNG_UARTS]; + +static int s3c64xx_irq_pm_suspend(void) { struct irq_grp_save *grp = eint_grp_save; int i; @@ -63,7 +72,7 @@ static int s3c64xx_irq_pm_suspend(struct sys_device *dev, pm_message_t state) s3c_pm_do_save(irq_save, ARRAY_SIZE(irq_save)); - for (i = 0; i < CONFIG_SERIAL_SAMSUNG_UARTS; i++) + for (i = 0; i < SERIAL_SAMSUNG_UARTS; i++) irq_uart_mask[i] = __raw_readl(S3C_VA_UARTx(i) + S3C64XX_UINTM); for (i = 0; i < ARRAY_SIZE(eint_grp_save); i++, grp++) { @@ -75,7 +84,7 @@ static int s3c64xx_irq_pm_suspend(struct sys_device *dev, pm_message_t state) return 0; } -static int s3c64xx_irq_pm_resume(struct sys_device *dev) +static void s3c64xx_irq_pm_resume(void) { struct irq_grp_save *grp = eint_grp_save; int i; @@ -84,7 +93,7 @@ static int s3c64xx_irq_pm_resume(struct sys_device *dev) s3c_pm_do_restore(irq_save, ARRAY_SIZE(irq_save)); - for (i = 0; i < CONFIG_SERIAL_SAMSUNG_UARTS; i++) + for (i = 0; i < SERIAL_SAMSUNG_UARTS; i++) __raw_writel(irq_uart_mask[i], S3C_VA_UARTx(i) + S3C64XX_UINTM); for (i = 0; i < ARRAY_SIZE(eint_grp_save); i++, grp++) { @@ -94,18 +103,22 @@ static int s3c64xx_irq_pm_resume(struct sys_device *dev) } S3C_PMDBG("%s: IRQ configuration restored\n", __func__); - return 0; } -static struct sysdev_driver s3c64xx_irq_driver = { +static struct syscore_ops s3c64xx_irq_syscore_ops = { .suspend = s3c64xx_irq_pm_suspend, .resume = s3c64xx_irq_pm_resume, }; -static int __init s3c64xx_irq_pm_init(void) +static __init int s3c64xx_syscore_init(void) { - return sysdev_driver_register(&s3c64xx_sysclass, &s3c64xx_irq_driver); -} + /* Appropriate drivers (pinctrl, uart) handle this when using DT. */ + if (of_have_populated_dt()) + return 0; + + register_syscore_ops(&s3c64xx_irq_syscore_ops); -arch_initcall(s3c64xx_irq_pm_init); + return 0; +} +core_initcall(s3c64xx_syscore_init); |