--- /dev/null
+/* da9063-irq.c: Interrupts support for Dialog DA9063
+ *
+ * Copyright 2012 Dialog Semiconductor Ltd.
+ * Copyright 2013 Philipp Zabel, Pengutronix
+ *
+ * Author: Michal Hajduk <michal.hajduk@diasemi.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
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/irq.h>
+#include <linux/mfd/core.h>
+#include <linux/interrupt.h>
+#include <linux/regmap.h>
+#include <linux/mfd/da9063/core.h>
+#include <linux/mfd/da9063/pdata.h>
+
+#define DA9063_REG_EVENT_A_OFFSET 0
+#define DA9063_REG_EVENT_B_OFFSET 1
+#define DA9063_REG_EVENT_C_OFFSET 2
+#define DA9063_REG_EVENT_D_OFFSET 3
+#define EVENTS_BUF_LEN 4
+
+static const u8 mask_events_buf[] = { [0 ... (EVENTS_BUF_LEN - 1)] = ~0 };
+
+struct da9063_irq_data {
+ u16 reg;
+ u8 mask;
+};
+
+static struct regmap_irq da9063_irqs[] = {
+ /* DA9063 event A register */
+ [DA9063_IRQ_ONKEY] = {
+ .reg_offset = DA9063_REG_EVENT_A_OFFSET,
+ .mask = DA9063_M_ONKEY,
+ },
+ [DA9063_IRQ_ALARM] = {
+ .reg_offset = DA9063_REG_EVENT_A_OFFSET,
+ .mask = DA9063_M_ALARM,
+ },
+ [DA9063_IRQ_TICK] = {
+ .reg_offset = DA9063_REG_EVENT_A_OFFSET,
+ .mask = DA9063_M_TICK,
+ },
+ [DA9063_IRQ_ADC_RDY] = {
+ .reg_offset = DA9063_REG_EVENT_A_OFFSET,
+ .mask = DA9063_M_ADC_RDY,
+ },
+ [DA9063_IRQ_SEQ_RDY] = {
+ .reg_offset = DA9063_REG_EVENT_A_OFFSET,
+ .mask = DA9063_M_SEQ_RDY,
+ },
+ /* DA9063 event B register */
+ [DA9063_IRQ_WAKE] = {
+ .reg_offset = DA9063_REG_EVENT_B_OFFSET,
+ .mask = DA9063_M_WAKE,
+ },
+ [DA9063_IRQ_TEMP] = {
+ .reg_offset = DA9063_REG_EVENT_B_OFFSET,
+ .mask = DA9063_M_TEMP,
+ },
+ [DA9063_IRQ_COMP_1V2] = {
+ .reg_offset = DA9063_REG_EVENT_B_OFFSET,
+ .mask = DA9063_M_COMP_1V2,
+ },
+ [DA9063_IRQ_LDO_LIM] = {
+ .reg_offset = DA9063_REG_EVENT_B_OFFSET,
+ .mask = DA9063_M_LDO_LIM,
+ },
+ [DA9063_IRQ_REG_UVOV] = {
+ .reg_offset = DA9063_REG_EVENT_B_OFFSET,
+ .mask = DA9063_M_UVOV,
+ },
+ [DA9063_IRQ_VDD_MON] = {
+ .reg_offset = DA9063_REG_EVENT_B_OFFSET,
+ .mask = DA9063_M_VDD_MON,
+ },
+ [DA9063_IRQ_WARN] = {
+ .reg_offset = DA9063_REG_EVENT_B_OFFSET,
+ .mask = DA9063_M_VDD_WARN,
+ },
+ /* DA9063 event C register */
+ [DA9063_IRQ_GPI0] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI0,
+ },
+ [DA9063_IRQ_GPI1] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI1,
+ },
+ [DA9063_IRQ_GPI2] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI2,
+ },
+ [DA9063_IRQ_GPI3] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI3,
+ },
+ [DA9063_IRQ_GPI4] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI4,
+ },
+ [DA9063_IRQ_GPI5] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI5,
+ },
+ [DA9063_IRQ_GPI6] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI6,
+ },
+ [DA9063_IRQ_GPI7] = {
+ .reg_offset = DA9063_REG_EVENT_C_OFFSET,
+ .mask = DA9063_M_GPI7,
+ },
+ /* DA9063 event D register */
+ [DA9063_IRQ_GPI8] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI8,
+ },
+ [DA9063_IRQ_GPI9] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI9,
+ },
+ [DA9063_IRQ_GPI10] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI10,
+ },
+ [DA9063_IRQ_GPI11] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI11,
+ },
+ [DA9063_IRQ_GPI12] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI12,
+ },
+ [DA9063_IRQ_GPI13] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI13,
+ },
+ [DA9063_IRQ_GPI14] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI14,
+ },
+ [DA9063_IRQ_GPI15] = {
+ .reg_offset = DA9063_REG_EVENT_D_OFFSET,
+ .mask = DA9063_M_GPI15,
+ },
+};
+
+static struct regmap_irq_chip da9063_irq_chip = {
+ .name = "da9063-irq",
+ .irqs = da9063_irqs,
+ .num_irqs = DA9063_NUM_IRQ,
+
+ .num_regs = 4,
+ .status_base = DA9063_REG_EVENT_A,
+ .mask_base = DA9063_REG_IRQ_MASK_A,
+ .ack_base = DA9063_REG_EVENT_A,
+ .init_ack_masked = true,
+};
+
+int da9063_irq_init(struct da9063 *da9063)
+{
+ int ret;
+
+ if (!da9063->chip_irq) {
+ dev_err(da9063->dev, "No IRQ configured\n");
+ return -EINVAL;
+ }
+
+ ret = regmap_add_irq_chip(da9063->regmap, da9063->chip_irq,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT | IRQF_SHARED,
+ da9063->irq_base, &da9063_irq_chip,
+ &da9063->regmap_irq);
+ if (ret) {
+ dev_err(da9063->dev, "Failed to reguest IRQ %d: %d\n",
+ da9063->chip_irq, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+void da9063_irq_exit(struct da9063 *da9063)
+{
+ regmap_del_irq_chip(da9063->chip_irq, da9063->regmap_irq);
+}
Code Review / kvmfornfv.git / blobdiff