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path: root/ANDROID_3.4.5/drivers/mfd/max8998-irq.c
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Diffstat (limited to 'ANDROID_3.4.5/drivers/mfd/max8998-irq.c')
-rw-r--r--ANDROID_3.4.5/drivers/mfd/max8998-irq.c267
1 files changed, 0 insertions, 267 deletions
diff --git a/ANDROID_3.4.5/drivers/mfd/max8998-irq.c b/ANDROID_3.4.5/drivers/mfd/max8998-irq.c
deleted file mode 100644
index 5919710d..00000000
--- a/ANDROID_3.4.5/drivers/mfd/max8998-irq.c
+++ /dev/null
@@ -1,267 +0,0 @@
-/*
- * Interrupt controller support for MAX8998
- *
- * Copyright (C) 2010 Samsung Electronics Co.Ltd
- * Author: Joonyoung Shim <jy0922.shim@samsung.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/device.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/mfd/max8998-private.h>
-
-struct max8998_irq_data {
- int reg;
- int mask;
-};
-
-static struct max8998_irq_data max8998_irqs[] = {
- [MAX8998_IRQ_DCINF] = {
- .reg = 1,
- .mask = MAX8998_IRQ_DCINF_MASK,
- },
- [MAX8998_IRQ_DCINR] = {
- .reg = 1,
- .mask = MAX8998_IRQ_DCINR_MASK,
- },
- [MAX8998_IRQ_JIGF] = {
- .reg = 1,
- .mask = MAX8998_IRQ_JIGF_MASK,
- },
- [MAX8998_IRQ_JIGR] = {
- .reg = 1,
- .mask = MAX8998_IRQ_JIGR_MASK,
- },
- [MAX8998_IRQ_PWRONF] = {
- .reg = 1,
- .mask = MAX8998_IRQ_PWRONF_MASK,
- },
- [MAX8998_IRQ_PWRONR] = {
- .reg = 1,
- .mask = MAX8998_IRQ_PWRONR_MASK,
- },
- [MAX8998_IRQ_WTSREVNT] = {
- .reg = 2,
- .mask = MAX8998_IRQ_WTSREVNT_MASK,
- },
- [MAX8998_IRQ_SMPLEVNT] = {
- .reg = 2,
- .mask = MAX8998_IRQ_SMPLEVNT_MASK,
- },
- [MAX8998_IRQ_ALARM1] = {
- .reg = 2,
- .mask = MAX8998_IRQ_ALARM1_MASK,
- },
- [MAX8998_IRQ_ALARM0] = {
- .reg = 2,
- .mask = MAX8998_IRQ_ALARM0_MASK,
- },
- [MAX8998_IRQ_ONKEY1S] = {
- .reg = 3,
- .mask = MAX8998_IRQ_ONKEY1S_MASK,
- },
- [MAX8998_IRQ_TOPOFFR] = {
- .reg = 3,
- .mask = MAX8998_IRQ_TOPOFFR_MASK,
- },
- [MAX8998_IRQ_DCINOVPR] = {
- .reg = 3,
- .mask = MAX8998_IRQ_DCINOVPR_MASK,
- },
- [MAX8998_IRQ_CHGRSTF] = {
- .reg = 3,
- .mask = MAX8998_IRQ_CHGRSTF_MASK,
- },
- [MAX8998_IRQ_DONER] = {
- .reg = 3,
- .mask = MAX8998_IRQ_DONER_MASK,
- },
- [MAX8998_IRQ_CHGFAULT] = {
- .reg = 3,
- .mask = MAX8998_IRQ_CHGFAULT_MASK,
- },
- [MAX8998_IRQ_LOBAT1] = {
- .reg = 4,
- .mask = MAX8998_IRQ_LOBAT1_MASK,
- },
- [MAX8998_IRQ_LOBAT2] = {
- .reg = 4,
- .mask = MAX8998_IRQ_LOBAT2_MASK,
- },
-};
-
-static inline struct max8998_irq_data *
-irq_to_max8998_irq(struct max8998_dev *max8998, int irq)
-{
- return &max8998_irqs[irq - max8998->irq_base];
-}
-
-static void max8998_irq_lock(struct irq_data *data)
-{
- struct max8998_dev *max8998 = irq_data_get_irq_chip_data(data);
-
- mutex_lock(&max8998->irqlock);
-}
-
-static void max8998_irq_sync_unlock(struct irq_data *data)
-{
- struct max8998_dev *max8998 = irq_data_get_irq_chip_data(data);
- int i;
-
- for (i = 0; i < ARRAY_SIZE(max8998->irq_masks_cur); i++) {
- /*
- * If there's been a change in the mask write it back
- * to the hardware.
- */
- if (max8998->irq_masks_cur[i] != max8998->irq_masks_cache[i]) {
- max8998->irq_masks_cache[i] = max8998->irq_masks_cur[i];
- max8998_write_reg(max8998->i2c, MAX8998_REG_IRQM1 + i,
- max8998->irq_masks_cur[i]);
- }
- }
-
- mutex_unlock(&max8998->irqlock);
-}
-
-static void max8998_irq_unmask(struct irq_data *data)
-{
- struct max8998_dev *max8998 = irq_data_get_irq_chip_data(data);
- struct max8998_irq_data *irq_data = irq_to_max8998_irq(max8998,
- data->irq);
-
- max8998->irq_masks_cur[irq_data->reg - 1] &= ~irq_data->mask;
-}
-
-static void max8998_irq_mask(struct irq_data *data)
-{
- struct max8998_dev *max8998 = irq_data_get_irq_chip_data(data);
- struct max8998_irq_data *irq_data = irq_to_max8998_irq(max8998,
- data->irq);
-
- max8998->irq_masks_cur[irq_data->reg - 1] |= irq_data->mask;
-}
-
-static struct irq_chip max8998_irq_chip = {
- .name = "max8998",
- .irq_bus_lock = max8998_irq_lock,
- .irq_bus_sync_unlock = max8998_irq_sync_unlock,
- .irq_mask = max8998_irq_mask,
- .irq_unmask = max8998_irq_unmask,
-};
-
-static irqreturn_t max8998_irq_thread(int irq, void *data)
-{
- struct max8998_dev *max8998 = data;
- u8 irq_reg[MAX8998_NUM_IRQ_REGS];
- int ret;
- int i;
-
- ret = max8998_bulk_read(max8998->i2c, MAX8998_REG_IRQ1,
- MAX8998_NUM_IRQ_REGS, irq_reg);
- if (ret < 0) {
- dev_err(max8998->dev, "Failed to read interrupt register: %d\n",
- ret);
- return IRQ_NONE;
- }
-
- /* Apply masking */
- for (i = 0; i < MAX8998_NUM_IRQ_REGS; i++)
- irq_reg[i] &= ~max8998->irq_masks_cur[i];
-
- /* Report */
- for (i = 0; i < MAX8998_IRQ_NR; i++) {
- if (irq_reg[max8998_irqs[i].reg - 1] & max8998_irqs[i].mask)
- handle_nested_irq(max8998->irq_base + i);
- }
-
- return IRQ_HANDLED;
-}
-
-int max8998_irq_resume(struct max8998_dev *max8998)
-{
- if (max8998->irq && max8998->irq_base)
- max8998_irq_thread(max8998->irq_base, max8998);
- return 0;
-}
-
-int max8998_irq_init(struct max8998_dev *max8998)
-{
- int i;
- int cur_irq;
- int ret;
-
- if (!max8998->irq) {
- dev_warn(max8998->dev,
- "No interrupt specified, no interrupts\n");
- max8998->irq_base = 0;
- return 0;
- }
-
- if (!max8998->irq_base) {
- dev_err(max8998->dev,
- "No interrupt base specified, no interrupts\n");
- return 0;
- }
-
- mutex_init(&max8998->irqlock);
-
- /* Mask the individual interrupt sources */
- for (i = 0; i < MAX8998_NUM_IRQ_REGS; i++) {
- max8998->irq_masks_cur[i] = 0xff;
- max8998->irq_masks_cache[i] = 0xff;
- max8998_write_reg(max8998->i2c, MAX8998_REG_IRQM1 + i, 0xff);
- }
-
- max8998_write_reg(max8998->i2c, MAX8998_REG_STATUSM1, 0xff);
- max8998_write_reg(max8998->i2c, MAX8998_REG_STATUSM2, 0xff);
-
- /* register with genirq */
- for (i = 0; i < MAX8998_IRQ_NR; i++) {
- cur_irq = i + max8998->irq_base;
- irq_set_chip_data(cur_irq, max8998);
- irq_set_chip_and_handler(cur_irq, &max8998_irq_chip,
- handle_edge_irq);
- irq_set_nested_thread(cur_irq, 1);
-#ifdef CONFIG_ARM
- set_irq_flags(cur_irq, IRQF_VALID);
-#else
- irq_set_noprobe(cur_irq);
-#endif
- }
-
- ret = request_threaded_irq(max8998->irq, NULL, max8998_irq_thread,
- IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
- "max8998-irq", max8998);
- if (ret) {
- dev_err(max8998->dev, "Failed to request IRQ %d: %d\n",
- max8998->irq, ret);
- return ret;
- }
-
- if (!max8998->ono)
- return 0;
-
- ret = request_threaded_irq(max8998->ono, NULL, max8998_irq_thread,
- IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING |
- IRQF_ONESHOT, "max8998-ono", max8998);
- if (ret)
- dev_err(max8998->dev, "Failed to request IRQ %d: %d\n",
- max8998->ono, ret);
-
- return 0;
-}
-
-void max8998_irq_exit(struct max8998_dev *max8998)
-{
- if (max8998->ono)
- free_irq(max8998->ono, max8998);
-
- if (max8998->irq)
- free_irq(max8998->irq, max8998);
-}
generated by cgit (git 2.34.1) at 2025-03-12 14:25:47 +0000