/*
* linux/drivers/mmc/host/msm_sdcc.c - Qualcomm MSM 7X00A SDCC Driver
*
* Copyright (C) 2007 Google Inc,
* Copyright (C) 2003 Deep Blue Solutions, Ltd, All Rights Reserved.
* Copyright (C) 2009, Code Aurora Forum. All Rights Reserved.
*
* 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.
*
* Based on mmci.c
*
* Author: San Mehat (san@android.com)
*
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/delay.h>
#include <linux/err.h>
#include <linux/highmem.h>
#include <linux/log2.h>
#include <linux/mmc/host.h>
#include <linux/mmc/card.h>
#include <linux/mmc/sdio.h>
#include <linux/clk.h>
#include <linux/scatterlist.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
#include <linux/debugfs.h>
#include <linux/io.h>
#include <linux/memory.h>
#include <linux/gfp.h>
#include <asm/cacheflush.h>
#include <asm/div64.h>
#include <asm/sizes.h>
#include <mach/mmc.h>
#include <mach/msm_iomap.h>
#include <mach/dma.h>
#include "msm_sdcc.h"
#define DRIVER_NAME "msm-sdcc"
#define BUSCLK_PWRSAVE 1
#define BUSCLK_TIMEOUT (HZ)
static unsigned int msmsdcc_fmin = 144000;
static unsigned int msmsdcc_fmax = 50000000;
static unsigned int msmsdcc_4bit = 1;
static unsigned int msmsdcc_pwrsave = 1;
static unsigned int msmsdcc_piopoll = 1;
static unsigned int msmsdcc_sdioirq;
#define PIO_SPINMAX 30
#define CMD_SPINMAX 20
static inline void
msmsdcc_disable_clocks(struct msmsdcc_host *host, int deferr)
{
WARN_ON(!host->clks_on);
BUG_ON(host->curr.mrq);
if (deferr) {
mod_timer(&host->busclk_timer, jiffies + BUSCLK_TIMEOUT);
} else {
del_timer_sync(&host->busclk_timer);
/* Need to check clks_on again in case the busclk
* timer fired
*/
if (host->clks_on) {
clk_disable(host->clk);
clk_disable(host->pclk);
host->clks_on = </