162306a36Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 262306a36Sopenharmony_ci// 362306a36Sopenharmony_ci// Copyright 2010 Ben Dooks <ben-linux@fluff.org> 462306a36Sopenharmony_ci// 562306a36Sopenharmony_ci// Support for wakeup mask interrupts on newer SoCs 662306a36Sopenharmony_ci 762306a36Sopenharmony_ci#include <linux/kernel.h> 862306a36Sopenharmony_ci#include <linux/spinlock.h> 962306a36Sopenharmony_ci#include <linux/device.h> 1062306a36Sopenharmony_ci#include <linux/types.h> 1162306a36Sopenharmony_ci#include <linux/irq.h> 1262306a36Sopenharmony_ci#include <linux/io.h> 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ci#include "wakeup-mask.h" 1562306a36Sopenharmony_ci#include "pm.h" 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_civoid samsung_sync_wakemask(void __iomem *reg, 1862306a36Sopenharmony_ci const struct samsung_wakeup_mask *mask, int nr_mask) 1962306a36Sopenharmony_ci{ 2062306a36Sopenharmony_ci struct irq_data *data; 2162306a36Sopenharmony_ci u32 val; 2262306a36Sopenharmony_ci 2362306a36Sopenharmony_ci val = __raw_readl(reg); 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_ci for (; nr_mask > 0; nr_mask--, mask++) { 2662306a36Sopenharmony_ci if (mask->irq == NO_WAKEUP_IRQ) { 2762306a36Sopenharmony_ci val |= mask->bit; 2862306a36Sopenharmony_ci continue; 2962306a36Sopenharmony_ci } 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_ci data = irq_get_irq_data(mask->irq); 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ci /* bit of a liberty to read this directly from irq_data. */ 3462306a36Sopenharmony_ci if (irqd_is_wakeup_set(data)) 3562306a36Sopenharmony_ci val &= ~mask->bit; 3662306a36Sopenharmony_ci else 3762306a36Sopenharmony_ci val |= mask->bit; 3862306a36Sopenharmony_ci } 3962306a36Sopenharmony_ci 4062306a36Sopenharmony_ci printk(KERN_INFO "wakemask %08x => %08x\n", __raw_readl(reg), val); 4162306a36Sopenharmony_ci __raw_writel(val, reg); 4262306a36Sopenharmony_ci} 43