irq-pm.rar_V2

/* * S5P64X0 - Interrupt handling Power Management */ #include <linux/syscore_ops.h> #include <linux/serial_core.h> #include <linux/io.h> #include <plat/regs-serial.h> #include <plat/pm.h> #include <mach/regs-gpio.h> static struct sleep_save irq_save[] = { SAVE_ITEM(S5P64X0_EINT0CON0), SAVE_ITEM(S5P64X0_EINT0FLTCON0), SAVE_ITEM(S5P64X0_EINT0FLTCON1), SAVE_ITEM(S5P64X0_EINT0MASK), }; static struct irq_grp_save { u32 con; u32 fltcon; u32 mask; } eint_grp_save[4]; static u32 irq_uart_mask[CONFIG_SERIAL_SAMSUNG_UARTS]; static int s5p64x0_irq_pm_suspend(void) { struct irq_grp_save *grp = eint_grp_save; int i; S3C_PMDBG("%s: suspending IRQs\n", __func__); s3c_pm_do_save(irq_save, ARRAY_SIZE(irq_save)); for (i = 0; i < CONFIG_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++) { grp->con = __raw_readl(S5P64X0_EINT12CON + (i * 4)); grp->mask = __raw_readl(S5P64X0_EINT12MASK + (i * 4)); grp->fltcon = __raw_readl(S5P64X0_EINT12FLTCON + (i * 4)); } return 0; } static void s5p64x0_irq_pm_resume(void) { struct irq_grp_save *grp = eint_grp_save; int i; S3C_PMDBG("%s: resuming IRQs\n", __func__); s3c_pm_do_restore(irq_save, ARRAY_SIZE(irq_save)); for (i = 0; i < CONFIG_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++) { __raw_writel(grp->con, S5P64X0_EINT12CON + (i * 4)); __raw_writel(grp->mask, S5P64X0_EINT12MASK + (i * 4)); __raw_writel(grp->fltcon, S5P64X0_EINT12FLTCON + (i * 4)); } S3C_PMDBG("%s: IRQ configuration restored\n", __func__); } static struct syscore_ops s5p64x0_irq_syscore_ops = { .suspend = s5p64x0_irq_pm_suspend, .resume = s5p64x0_irq_pm_resume, }; static int __init s5p64x0_syscore_init(void) { register_syscore_ops(&s5p64x0_irq_syscore_ops); return 0; } core_initcall(s5p64x0_syscore_init);