/*
- * rk808-irq.c -- TI TPS6591x
+ * rk808-irq.c
*
- * Copyright 2010 Texas Instruments Inc.
- *
- * Author: Graeme Gregory <gg@slimlogic.co.uk>
- * Author: Jorge Eduardo Candelaria <jedu@slimlogic.co.uk>
+ * Author: zhangqing <zhangqing@rock-chips.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
#include <linux/mfd/rk808.h>
#include <linux/wakelock.h>
#include <linux/kthread.h>
+#include <linux/irqdomain.h>
+#include <linux/regmap.h>
+
static inline int irq_to_rk808_irq(struct rk808 *rk808,
int irq)
{
- return (irq - rk808->irq_base);
+ return (irq - rk808->chip_irq);
}
/*
u32 irq_sts;
u32 irq_mask;
u8 reg;
- int i;
- //printk(" rk808 irq %d \n",irq);
+ int i, cur_irq;
+// printk("%s,line=%d\n", __func__,__LINE__);
+
wake_lock(&rk808->irq_wake);
rk808_i2c_read(rk808, RK808_INT_STS_REG1, 1, ®);
irq_sts = reg;
}
for (i = 0; i < rk808->irq_num; i++) {
-
if (!(irq_sts & (1 << i)))
continue;
+ cur_irq = irq_find_mapping(rk808->irq_domain, i);
- handle_nested_irq(rk808->irq_base + i);
+ if (cur_irq)
+ handle_nested_irq(cur_irq);
}
/* Write the STS register back to clear IRQs we handled */
.irq_enable = rk808_irq_enable,
.irq_set_wake = rk808_irq_set_wake,
};
-
-int rk808_irq_init(struct rk808 *rk808, int irq,struct rk808_platform_data *pdata)
+static int rk808_irq_domain_map(struct irq_domain *d, unsigned int irq,
+ irq_hw_number_t hw)
{
- int ret, cur_irq;
- int flags = IRQF_ONESHOT;
- u8 reg;
+ struct rk808 *rk808 = d->host_data;
- printk("%s,line=%d\n", __func__,__LINE__);
+ irq_set_chip_data(irq, rk808);
+ irq_set_chip_and_handler(irq, &rk808_irq_chip, handle_edge_irq);
+ irq_set_nested_thread(irq, 1);
+#ifdef CONFIG_ARM
+ set_irq_flags(irq, IRQF_VALID);
+#else
+ irq_set_noprobe(irq);
+#endif
+ return 0;
+}
+
+static struct irq_domain_ops rk808_irq_domain_ops = {
+ .map = rk808_irq_domain_map,
+};
+int rk808_irq_init(struct rk808 *rk808, int irq,struct rk808_board *pdata)
+{
+ struct irq_domain *domain;
+ int ret,val,irq_type,flags;
+ u8 reg;
+// printk("%s,line=%d\n", __func__,__LINE__);
if (!irq) {
dev_warn(rk808->dev, "No interrupt support, no core IRQ\n");
return 0;
}
- if (!pdata || !pdata->irq_base) {
- dev_warn(rk808->dev, "No interrupt support, no IRQ base\n");
- return 0;
- }
-
/* Clear unattended interrupts */
rk808_i2c_read(rk808, RK808_INT_STS_REG1, 1, ®);
rk808_i2c_write(rk808, RK808_INT_STS_REG1, 1, reg);
/* Mask top level interrupts */
rk808->irq_mask = 0xFFFFFF;
-
mutex_init(&rk808->irq_lock);
wake_lock_init(&rk808->irq_wake, WAKE_LOCK_SUSPEND, "rk808_irq_wake");
- rk808->chip_irq = irq;
- rk808->irq_base = pdata->irq_base;
-
rk808->irq_num = RK808_NUM_IRQ;
-
- /* Register with genirq */
- for (cur_irq = rk808->irq_base;
- cur_irq < rk808->irq_num + rk808->irq_base;
- cur_irq++) {
- irq_set_chip_data(cur_irq, rk808);
- irq_set_chip_and_handler(cur_irq, &rk808_irq_chip,
- handle_edge_irq);
- irq_set_nested_thread(cur_irq, 1);
-
- /* ARM needs us to explicitly flag the IRQ as valid
- * and will set them noprobe when we do so. */
-#ifdef CONFIG_ARM
- set_irq_flags(cur_irq, IRQF_VALID);
-#else
- irq_set_noprobe(cur_irq);
-#endif
+ rk808->irq_gpio = pdata->irq_gpio;
+ if (rk808->irq_gpio && !rk808->chip_irq) {
+ rk808->chip_irq = gpio_to_irq(rk808->irq_gpio);
+
+ if (rk808->irq_gpio) {
+ ret = gpio_request(rk808->irq_gpio, "rk808_pmic_irq");
+ if (ret < 0) {
+ dev_err(rk808->dev,
+ "Failed to request gpio %d with ret:"
+ "%d\n", rk808->irq_gpio, ret);
+ return IRQ_NONE;
+ }
+ gpio_direction_input(rk808->irq_gpio);
+ val = gpio_get_value(rk808->irq_gpio);
+ if (val){
+ irq_type = IRQ_TYPE_LEVEL_LOW;
+ flags = IRQF_TRIGGER_FALLING;
+ }
+ else{
+ irq_type = IRQ_TYPE_LEVEL_HIGH;
+ flags = IRQF_TRIGGER_RISING;
+ }
+ gpio_free(rk808->irq_gpio);
+ pr_info("%s: rk808_pmic_irq=%x\n", __func__, val);
+ }
+ }
+
+ domain = irq_domain_add_linear(NULL, RK808_NUM_IRQ,
+ &rk808_irq_domain_ops, rk808);
+ if (!domain) {
+ dev_err(rk808->dev, "could not create irq domain\n");
+ return -ENODEV;
}
+ rk808->irq_domain = domain;
- ret = request_threaded_irq(irq, NULL, rk808_irq, flags, "rk808", rk808);
+ ret = request_threaded_irq(rk808->chip_irq, NULL, rk808_irq, flags | IRQF_ONESHOT, "rk808", rk808);
- irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
+ irq_set_irq_type(rk808->chip_irq, irq_type);
+ enable_irq_wake(rk808->chip_irq);
if (ret != 0)
dev_err(rk808->dev, "Failed to request IRQ: %d\n", ret);