1 files changed, 0 insertions, 303 deletions

diff --git a/ANDROID_3.4.5/drivers/base/regmap/regmap-irq.c b/ANDROID_3.4.5/drivers/base/regmap/regmap-irq.c
deleted file mode 100644
index 1befaa7a..00000000
--- a/ANDROID_3.4.5/drivers/base/regmap/regmap-irq.c
+++ /dev/null
@@ -1,303 +0,0 @@
-/*
- * regmap based irq_chip
- *
- * Copyright 2011 Wolfson Microelectronics plc
- *
- * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/export.h>
-#include <linux/device.h>
-#include <linux/regmap.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/slab.h>
-
-#include "internal.h"
-
-struct regmap_irq_chip_data {
-	struct mutex lock;
-
-	struct regmap *map;
-	struct regmap_irq_chip *chip;
-
-	int irq_base;
-
-	void *status_reg_buf;
-	unsigned int *status_buf;
-	unsigned int *mask_buf;
-	unsigned int *mask_buf_def;
-};
-
-static inline const
-struct regmap_irq *irq_to_regmap_irq(struct regmap_irq_chip_data *data,
-				     int irq)
-{
-	return &data->chip->irqs[irq - data->irq_base];
-}
-
-static void regmap_irq_lock(struct irq_data *data)
-{
-	struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data);
-
-	mutex_lock(&d->lock);
-}
-
-static void regmap_irq_sync_unlock(struct irq_data *data)
-{
-	struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data);
-	int i, ret;
-
-	/*
-	 * If there's been a change in the mask write it back to the
-	 * hardware.  We rely on the use of the regmap core cache to
-	 * suppress pointless writes.
-	 */
-	for (i = 0; i < d->chip->num_regs; i++) {
-		ret = regmap_update_bits(d->map, d->chip->mask_base + i,
-					 d->mask_buf_def[i], d->mask_buf[i]);
-		if (ret != 0)
-			dev_err(d->map->dev, "Failed to sync masks in %x\n",
-				d->chip->mask_base + i);
-	}
-
-	mutex_unlock(&d->lock);
-}
-
-static void regmap_irq_enable(struct irq_data *data)
-{
-	struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data);
-	const struct regmap_irq *irq_data = irq_to_regmap_irq(d, data->irq);
-
-	d->mask_buf[irq_data->reg_offset] &= ~irq_data->mask;
-}
-
-static void regmap_irq_disable(struct irq_data *data)
-{
-	struct regmap_irq_chip_data *d = irq_data_get_irq_chip_data(data);
-	const struct regmap_irq *irq_data = irq_to_regmap_irq(d, data->irq);
-
-	d->mask_buf[irq_data->reg_offset] |= irq_data->mask;
-}
-
-static struct irq_chip regmap_irq_chip = {
-	.name			= "regmap",
-	.irq_bus_lock		= regmap_irq_lock,
-	.irq_bus_sync_unlock	= regmap_irq_sync_unlock,
-	.irq_disable		= regmap_irq_disable,
-	.irq_enable		= regmap_irq_enable,
-};
-
-static irqreturn_t regmap_irq_thread(int irq, void *d)
-{
-	struct regmap_irq_chip_data *data = d;
-	struct regmap_irq_chip *chip = data->chip;
-	struct regmap *map = data->map;
-	int ret, i;
-	u8 *buf8 = data->status_reg_buf;
-	u16 *buf16 = data->status_reg_buf;
-	u32 *buf32 = data->status_reg_buf;
-	bool handled = false;
-
-	ret = regmap_bulk_read(map, chip->status_base, data->status_reg_buf,
-			       chip->num_regs);
-	if (ret != 0) {
-		dev_err(map->dev, "Failed to read IRQ status: %d\n", ret);
-		return IRQ_NONE;
-	}
-
-	/*
-	 * Ignore masked IRQs and ack if we need to; we ack early so
-	 * there is no race between handling and acknowleding the
-	 * interrupt.  We assume that typically few of the interrupts
-	 * will fire simultaneously so don't worry about overhead from
-	 * doing a write per register.
-	 */
-	for (i = 0; i < data->chip->num_regs; i++) {
-		switch (map->format.val_bytes) {
-		case 1:
-			data->status_buf[i] = buf8[i];
-			break;
-		case 2:
-			data->status_buf[i] = buf16[i];
-			break;
-		case 4:
-			data->status_buf[i] = buf32[i];
-			break;
-		default:
-			BUG();
-			return IRQ_NONE;
-		}
-
-		data->status_buf[i] &= ~data->mask_buf[i];
-
-		if (data->status_buf[i] && chip->ack_base) {
-			ret = regmap_write(map, chip->ack_base + i,
-					   data->status_buf[i]);
-			if (ret != 0)
-				dev_err(map->dev, "Failed to ack 0x%x: %d\n",
-					chip->ack_base + i, ret);
-		}
-	}
-
-	for (i = 0; i < chip->num_irqs; i++) {
-		if (data->status_buf[chip->irqs[i].reg_offset] &
-		    chip->irqs[i].mask) {
-			handle_nested_irq(data->irq_base + i);
-			handled = true;
-		}
-	}
-
-	if (handled)
-		return IRQ_HANDLED;
-	else
-		return IRQ_NONE;
-}
-
-/**
- * regmap_add_irq_chip(): Use standard regmap IRQ controller handling
- *
- * map:       The regmap for the device.
- * irq:       The IRQ the device uses to signal interrupts
- * irq_flags: The IRQF_ flags to use for the primary interrupt.
- * chip:      Configuration for the interrupt controller.
- * data:      Runtime data structure for the controller, allocated on success
- *
- * Returns 0 on success or an errno on failure.
- *
- * In order for this to be efficient the chip really should use a
- * register cache.  The chip driver is responsible for restoring the
- * register values used by the IRQ controller over suspend and resume.
- */
-int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags,
-			int irq_base, struct regmap_irq_chip *chip,
-			struct regmap_irq_chip_data **data)
-{
-	struct regmap_irq_chip_data *d;
-	int cur_irq, i;
-	int ret = -ENOMEM;
-
-	irq_base = irq_alloc_descs(irq_base, 0, chip->num_irqs, 0);
-	if (irq_base < 0) {
-		dev_warn(map->dev, "Failed to allocate IRQs: %d\n",
-			 irq_base);
-		return irq_base;
-	}
-
-	d = kzalloc(sizeof(*d), GFP_KERNEL);
-	if (!d)
-		return -ENOMEM;
-
-	d->status_buf = kzalloc(sizeof(unsigned int) * chip->num_regs,
-				GFP_KERNEL);
-	if (!d->status_buf)
-		goto err_alloc;
-
-	d->status_reg_buf = kzalloc(map->format.val_bytes * chip->num_regs,
-				    GFP_KERNEL);
-	if (!d->status_reg_buf)
-		goto err_alloc;
-
-	d->mask_buf = kzalloc(sizeof(unsigned int) * chip->num_regs,
-			      GFP_KERNEL);
-	if (!d->mask_buf)
-		goto err_alloc;
-
-	d->mask_buf_def = kzalloc(sizeof(unsigned int) * chip->num_regs,
-				  GFP_KERNEL);
-	if (!d->mask_buf_def)
-		goto err_alloc;
-
-	d->map = map;
-	d->chip = chip;
-	d->irq_base = irq_base;
-	mutex_init(&d->lock);
-
-	for (i = 0; i < chip->num_irqs; i++)
-		d->mask_buf_def[chip->irqs[i].reg_offset]
-			|= chip->irqs[i].mask;
-
-	/* Mask all the interrupts by default */
-	for (i = 0; i < chip->num_regs; i++) {
-		d->mask_buf[i] = d->mask_buf_def[i];
-		ret = regmap_write(map, chip->mask_base + i, d->mask_buf[i]);
-		if (ret != 0) {
-			dev_err(map->dev, "Failed to set masks in 0x%x: %d\n",
-				chip->mask_base + i, ret);
-			goto err_alloc;
-		}
-	}
-
-	/* Register them with genirq */
-	for (cur_irq = irq_base;
-	     cur_irq < chip->num_irqs + irq_base;
-	     cur_irq++) {
-		irq_set_chip_data(cur_irq, d);
-		irq_set_chip_and_handler(cur_irq, &regmap_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
-	}
-
-	ret = request_threaded_irq(irq, NULL, regmap_irq_thread, irq_flags,
-				   chip->name, d);
-	if (ret != 0) {
-		dev_err(map->dev, "Failed to request IRQ %d: %d\n", irq, ret);
-		goto err_alloc;
-	}
-
-	return 0;
-
-err_alloc:
-	kfree(d->mask_buf_def);
-	kfree(d->mask_buf);
-	kfree(d->status_reg_buf);
-	kfree(d->status_buf);
-	kfree(d);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(regmap_add_irq_chip);
-
-/**
- * regmap_del_irq_chip(): Stop interrupt handling for a regmap IRQ chip
- *
- * @irq: Primary IRQ for the device
- * @d:   regmap_irq_chip_data allocated by regmap_add_irq_chip()
- */
-void regmap_del_irq_chip(int irq, struct regmap_irq_chip_data *d)
-{
-	if (!d)
-		return;
-
-	free_irq(irq, d);
-	kfree(d->mask_buf_def);
-	kfree(d->mask_buf);
-	kfree(d->status_reg_buf);
-	kfree(d->status_buf);
-	kfree(d);
-}
-EXPORT_SYMBOL_GPL(regmap_del_irq_chip);
-
-/**
- * regmap_irq_chip_get_base(): Retrieve interrupt base for a regmap IRQ chip
- *
- * Useful for drivers to request their own IRQs.
- *
- * @data: regmap_irq controller to operate on.
- */
-int regmap_irq_chip_get_base(struct regmap_irq_chip_data *data)
-{
-	return data->irq_base;
-}
-EXPORT_SYMBOL_GPL(regmap_irq_chip_get_base);