mmc: tmio: rename tmio_mmc_{pio => core}.c

Rename tmio_mmc_pio.c to tmio_mmc_core.c to more accurately reflect its
function: to provide core code for the tmio-mmc and sh-mobole-sdhi drivers.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

1 files changed, 0 insertions, 1390 deletions

diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
deleted file mode 100644
index a649a5ff9957..000000000000
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ /dev/null
@@ -1,1390 +0,0 @@
-/*
- * Driver for the MMC / SD / SDIO IP found in:
- *
- * TC6393XB, TC6391XB, TC6387XB, T7L66XB, ASIC3, SH-Mobile SoCs
- *
- * Copyright (C) 2016 Sang Engineering, Wolfram Sang
- * Copyright (C) 2015-16 Renesas Electronics Corporation
- * Copyright (C) 2011 Guennadi Liakhovetski
- * Copyright (C) 2007 Ian Molton
- * Copyright (C) 2004 Ian Molton
- *
- * 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.
- *
- * This driver draws mainly on scattered spec sheets, Reverse engineering
- * of the toshiba e800  SD driver and some parts of the 2.4 ASIC3 driver (4 bit
- * support). (Further 4 bit support from a later datasheet).
- *
- * TODO:
- *   Investigate using a workqueue for PIO transfers
- *   Eliminate FIXMEs
- *   Better Power management
- *   Handle MMC errors better
- *   double buffer support
- *
- */
-
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/highmem.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/irq.h>
-#include <linux/mfd/tmio.h>
-#include <linux/mmc/card.h>
-#include <linux/mmc/host.h>
-#include <linux/mmc/mmc.h>
-#include <linux/mmc/slot-gpio.h>
-#include <linux/module.h>
-#include <linux/pagemap.h>
-#include <linux/platform_device.h>
-#include <linux/pm_qos.h>
-#include <linux/pm_runtime.h>
-#include <linux/regulator/consumer.h>
-#include <linux/mmc/sdio.h>
-#include <linux/scatterlist.h>
-#include <linux/spinlock.h>
-#include <linux/workqueue.h>
-
-#include "tmio_mmc.h"
-
-static inline void tmio_mmc_start_dma(struct tmio_mmc_host *host,
-				      struct mmc_data *data)
-{
-	if (host->dma_ops)
-		host->dma_ops->start(host, data);
-}
-
-static inline void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
-{
-	if (host->dma_ops)
-		host->dma_ops->enable(host, enable);
-}
-
-static inline void tmio_mmc_request_dma(struct tmio_mmc_host *host,
-					struct tmio_mmc_data *pdata)
-{
-	if (host->dma_ops) {
-		host->dma_ops->request(host, pdata);
-	} else {
-		host->chan_tx = NULL;
-		host->chan_rx = NULL;
-	}
-}
-
-static inline void tmio_mmc_release_dma(struct tmio_mmc_host *host)
-{
-	if (host->dma_ops)
-		host->dma_ops->release(host);
-}
-
-static inline void tmio_mmc_abort_dma(struct tmio_mmc_host *host)
-{
-	if (host->dma_ops)
-		host->dma_ops->abort(host);
-}
-
-void tmio_mmc_enable_mmc_irqs(struct tmio_mmc_host *host, u32 i)
-{
-	host->sdcard_irq_mask &= ~(i & TMIO_MASK_IRQ);
-	sd_ctrl_write32_as_16_and_16(host, CTL_IRQ_MASK, host->sdcard_irq_mask);
-}
-EXPORT_SYMBOL(tmio_mmc_enable_mmc_irqs);
-
-void tmio_mmc_disable_mmc_irqs(struct tmio_mmc_host *host, u32 i)
-{
-	host->sdcard_irq_mask |= (i & TMIO_MASK_IRQ);
-	sd_ctrl_write32_as_16_and_16(host, CTL_IRQ_MASK, host->sdcard_irq_mask);
-}
-EXPORT_SYMBOL(tmio_mmc_disable_mmc_irqs);
-
-static void tmio_mmc_ack_mmc_irqs(struct tmio_mmc_host *host, u32 i)
-{
-	sd_ctrl_write32_as_16_and_16(host, CTL_STATUS, ~i);
-}
-
-static void tmio_mmc_init_sg(struct tmio_mmc_host *host, struct mmc_data *data)
-{
-	host->sg_len = data->sg_len;
-	host->sg_ptr = data->sg;
-	host->sg_orig = data->sg;
-	host->sg_off = 0;
-}
-
-static int tmio_mmc_next_sg(struct tmio_mmc_host *host)
-{
-	host->sg_ptr = sg_next(host->sg_ptr);
-	host->sg_off = 0;
-	return --host->sg_len;
-}
-
-#define CMDREQ_TIMEOUT	5000
-
-#ifdef CONFIG_MMC_DEBUG
-
-#define STATUS_TO_TEXT(a, status, i) \
-	do { \
-		if (status & TMIO_STAT_##a) { \
-			if (i++) \
-				printk(" | "); \
-			printk(#a); \
-		} \
-	} while (0)
-
-static void pr_debug_status(u32 status)
-{
-	int i = 0;
-	pr_debug("status: %08x = ", status);
-	STATUS_TO_TEXT(CARD_REMOVE, status, i);
-	STATUS_TO_TEXT(CARD_INSERT, status, i);
-	STATUS_TO_TEXT(SIGSTATE, status, i);
-	STATUS_TO_TEXT(WRPROTECT, status, i);
-	STATUS_TO_TEXT(CARD_REMOVE_A, status, i);
-	STATUS_TO_TEXT(CARD_INSERT_A, status, i);
-	STATUS_TO_TEXT(SIGSTATE_A, status, i);
-	STATUS_TO_TEXT(CMD_IDX_ERR, status, i);
-	STATUS_TO_TEXT(STOPBIT_ERR, status, i);
-	STATUS_TO_TEXT(ILL_FUNC, status, i);
-	STATUS_TO_TEXT(CMD_BUSY, status, i);
-	STATUS_TO_TEXT(CMDRESPEND, status, i);
-	STATUS_TO_TEXT(DATAEND, status, i);
-	STATUS_TO_TEXT(CRCFAIL, status, i);
-	STATUS_TO_TEXT(DATATIMEOUT, status, i);
-	STATUS_TO_TEXT(CMDTIMEOUT, status, i);
-	STATUS_TO_TEXT(RXOVERFLOW, status, i);
-	STATUS_TO_TEXT(TXUNDERRUN, status, i);
-	STATUS_TO_TEXT(RXRDY, status, i);
-	STATUS_TO_TEXT(TXRQ, status, i);
-	STATUS_TO_TEXT(ILL_ACCESS, status, i);
-	printk("\n");
-}
-
-#else
-#define pr_debug_status(s)  do { } while (0)
-#endif
-
-static void tmio_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
-{
-	struct tmio_mmc_host *host = mmc_priv(mmc);
-
-	if (enable && !host->sdio_irq_enabled) {
-		u16 sdio_status;
-
-		/* Keep device active while SDIO irq is enabled */
-		pm_runtime_get_sync(mmc_dev(mmc));
-
-		host->sdio_irq_enabled = true;
-		host->sdio_irq_mask = TMIO_SDIO_MASK_ALL &
-					~TMIO_SDIO_STAT_IOIRQ;
-
-		/* Clear obsolete interrupts before enabling */
-		sdio_status = sd_ctrl_read16(host, CTL_SDIO_STATUS) & ~TMIO_SDIO_MASK_ALL;
-		if (host->pdata->flags & TMIO_MMC_SDIO_STATUS_SETBITS)
-			sdio_status |= TMIO_SDIO_SETBITS_MASK;
-		sd_ctrl_write16(host, CTL_SDIO_STATUS, sdio_status);
-
-		sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, host->sdio_irq_mask);
-	} else if (!enable && host->sdio_irq_enabled) {
-		host->sdio_irq_mask = TMIO_SDIO_MASK_ALL;
-		sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, host->sdio_irq_mask);
-
-		host->sdio_irq_enabled = false;
-		pm_runtime_mark_last_busy(mmc_dev(mmc));
-		pm_runtime_put_autosuspend(mmc_dev(mmc));
-	}
-}
-
-static void tmio_mmc_clk_start(struct tmio_mmc_host *host)
-{
-	sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, CLK_CTL_SCLKEN |
-		sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
-	msleep(host->pdata->flags & TMIO_MMC_MIN_RCAR2 ? 1 : 10);
-
-	if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG) {
-		sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0100);
-		msleep(10);
-	}
-}
-
-static void tmio_mmc_clk_stop(struct tmio_mmc_host *host)
-{
-	if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG) {
-		sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0000);
-		msleep(10);
-	}
-
-	sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, ~CLK_CTL_SCLKEN &
-		sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
-	msleep(host->pdata->flags & TMIO_MMC_MIN_RCAR2 ? 5 : 10);
-}
-
-static void tmio_mmc_set_clock(struct tmio_mmc_host *host,
-				unsigned int new_clock)
-{
-	u32 clk = 0, clock;
-
-	if (new_clock == 0) {
-		tmio_mmc_clk_stop(host);
-		return;
-	}
-
-	if (host->clk_update)
-		clock = host->clk_update(host, new_clock) / 512;
-	else
-		clock = host->mmc->f_min;
-
-	for (clk = 0x80000080; new_clock >= (clock << 1); clk >>= 1)
-		clock <<= 1;
-
-	/* 1/1 clock is option */
-	if ((host->pdata->flags & TMIO_MMC_CLK_ACTUAL) && ((clk >> 22) & 0x1))
-		clk |= 0xff;
-
-	if (host->set_clk_div)
-		host->set_clk_div(host->pdev, (clk >> 22) & 1);
-
-	sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, ~CLK_CTL_SCLKEN &
-			sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
-	sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, clk & CLK_CTL_DIV_MASK);
-	if (!(host->pdata->flags & TMIO_MMC_MIN_RCAR2))
-		msleep(10);
-
-	tmio_mmc_clk_start(host);
-}
-
-static void tmio_mmc_reset(struct tmio_mmc_host *host)
-{
-	/* FIXME - should we set stop clock reg here */
-	sd_ctrl_write16(host, CTL_RESET_SD, 0x0000);
-	if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG)
-		sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0000);
-	msleep(10);
-	sd_ctrl_write16(host, CTL_RESET_SD, 0x0001);
-	if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG)
-		sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0001);
-	msleep(10);
-}
-
-static void tmio_mmc_reset_work(struct work_struct *work)
-{
-	struct tmio_mmc_host *host = container_of(work, struct tmio_mmc_host,
-						  delayed_reset_work.work);
-	struct mmc_request *mrq;
-	unsigned long flags;
-
-	spin_lock_irqsave(&host->lock, flags);
-	mrq = host->mrq;
-
-	/*
-	 * is request already finished? Since we use a non-blocking
-	 * cancel_delayed_work(), it can happen, that a .set_ios() call preempts
-	 * us, so, have to check for IS_ERR(host->mrq)
-	 */
-	if (IS_ERR_OR_NULL(mrq)
-	    || time_is_after_jiffies(host->last_req_ts +
-		msecs_to_jiffies(CMDREQ_TIMEOUT))) {
-		spin_unlock_irqrestore(&host->lock, flags);
-		return;
-	}
-
-	dev_warn(&host->pdev->dev,
-		"timeout waiting for hardware interrupt (CMD%u)\n",
-		mrq->cmd->opcode);
-
-	if (host->data)
-		host->data->error = -ETIMEDOUT;
-	else if (host->cmd)
-		host->cmd->error = -ETIMEDOUT;
-	else
-		mrq->cmd->error = -ETIMEDOUT;
-
-	host->cmd = NULL;
-	host->data = NULL;
-	host->force_pio = false;
-
-	spin_unlock_irqrestore(&host->lock, flags);
-
-	tmio_mmc_reset(host);
-
-	/* Ready for new calls */
-	host->mrq = NULL;
-
-	tmio_mmc_abort_dma(host);
-	mmc_request_done(host->mmc, mrq);
-}
-
-/* called with host->lock held, interrupts disabled */
-static void tmio_mmc_finish_request(struct tmio_mmc_host *host)
-{
-	struct mmc_request *mrq;
-	unsigned long flags;
-
-	spin_lock_irqsave(&host->lock, flags);
-
-	mrq = host->mrq;
-	if (IS_ERR_OR_NULL(mrq)) {
-		spin_unlock_irqrestore(&host->lock, flags);
-		return;
-	}
-
-	host->cmd = NULL;
-	host->data = NULL;
-	host->force_pio = false;
-
-	cancel_delayed_work(&host->delayed_reset_work);
-
-	host->mrq = NULL;
-	spin_unlock_irqrestore(&host->lock, flags);
-
-	if (mrq->cmd->error || (mrq->data && mrq->data->error))
-		tmio_mmc_abort_dma(host);
-
-	if (host->check_scc_error)
-		host->check_scc_error(host);
-
-	mmc_request_done(host->mmc, mrq);
-}
-
-static void tmio_mmc_done_work(struct work_struct *work)
-{
-	struct tmio_mmc_host *host = container_of(work, struct tmio_mmc_host,
-						  done);
-	tmio_mmc_finish_request(host);
-}
-
-/* These are the bitmasks the tmio chip requires to implement the MMC response
- * types. Note that R1 and R6 are the same in this scheme. */
-#define APP_CMD        0x0040
-#define RESP_NONE      0x0300
-#define RESP_R1        0x0400
-#define RESP_R1B       0x0500
-#define RESP_R2        0x0600
-#define RESP_R3        0x0700
-#define DATA_PRESENT   0x0800
-#define TRANSFER_READ  0x1000
-#define TRANSFER_MULTI 0x2000
-#define SECURITY_CMD   0x4000
-#define NO_CMD12_ISSUE 0x4000 /* TMIO_MMC_HAVE_CMD12_CTRL */
-
-static int tmio_mmc_start_command(struct tmio_mmc_host *host, struct mmc_command *cmd)
-{
-	struct mmc_data *data = host->data;
-	int c = cmd->opcode;
-	u32 irq_mask = TMIO_MASK_CMD;
-
-	/* CMD12 is handled by hardware */
-	if (cmd->opcode == MMC_STOP_TRANSMISSION && !cmd->arg) {
-		sd_ctrl_write16(host, CTL_STOP_INTERNAL_ACTION, TMIO_STOP_STP);
-		return 0;
-	}
-
-	switch (mmc_resp_type(cmd)) {
-	case MMC_RSP_NONE: c |= RESP_NONE; break;
-	case MMC_RSP_R1:
-	case MMC_RSP_R1_NO_CRC:
-			   c |= RESP_R1;   break;
-	case MMC_RSP_R1B:  c |= RESP_R1B;  break;
-	case MMC_RSP_R2:   c |= RESP_R2;   break;
-	case MMC_RSP_R3:   c |= RESP_R3;   break;
-	default:
-		pr_debug("Unknown response type %d\n", mmc_resp_type(cmd));
-		return -EINVAL;
-	}
-
-	host->cmd = cmd;
-
-/* FIXME - this seems to be ok commented out but the spec suggest this bit
- *         should be set when issuing app commands.
- *	if(cmd->flags & MMC_FLAG_ACMD)
- *		c |= APP_CMD;
- */
-	if (data) {
-		c |= DATA_PRESENT;
-		if (data->blocks > 1) {
-			sd_ctrl_write16(host, CTL_STOP_INTERNAL_ACTION, TMIO_STOP_SEC);
-			c |= TRANSFER_MULTI;
-
-			/*
-			 * Disable auto CMD12 at IO_RW_EXTENDED when
-			 * multiple block transfer
-			 */
-			if ((host->pdata->flags & TMIO_MMC_HAVE_CMD12_CTRL) &&
-			    (cmd->opcode == SD_IO_RW_EXTENDED))
-				c |= NO_CMD12_ISSUE;
-		}
-		if (data->flags & MMC_DATA_READ)
-			c |= TRANSFER_READ;
-	}
-
-	if (!host->native_hotplug)
-		irq_mask &= ~(TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT);
-	tmio_mmc_enable_mmc_irqs(host, irq_mask);
-
-	/* Fire off the command */
-	sd_ctrl_write32_as_16_and_16(host, CTL_ARG_REG, cmd->arg);
-	sd_ctrl_write16(host, CTL_SD_CMD, c);
-
-	return 0;
-}
-
-static void tmio_mmc_transfer_data(struct tmio_mmc_host *host,
-				   unsigned short *buf,
-				   unsigned int count)
-{
-	int is_read = host->data->flags & MMC_DATA_READ;
-	u8  *buf8;
-
-	/*
-	 * Transfer the data
-	 */
-	if (host->pdata->flags & TMIO_MMC_32BIT_DATA_PORT) {
-		u8 data[4] = { };
-
-		if (is_read)
-			sd_ctrl_read32_rep(host, CTL_SD_DATA_PORT, (u32 *)buf,
-					   count >> 2);
-		else
-			sd_ctrl_write32_rep(host, CTL_SD_DATA_PORT, (u32 *)buf,
-					    count >> 2);
-
-		/* if count was multiple of 4 */
-		if (!(count & 0x3))
-			return;
-
-		buf8 = (u8 *)(buf + (count >> 2));
-		count %= 4;
-
-		if (is_read) {
-			sd_ctrl_read32_rep(host, CTL_SD_DATA_PORT,
-					   (u32 *)data, 1);
-			memcpy(buf8, data, count);
-		} else {
-			memcpy(data, buf8, count);
-			sd_ctrl_write32_rep(host, CTL_SD_DATA_PORT,
-					    (u32 *)data, 1);
-		}
-
-		return;
-	}
-
-	if (is_read)
-		sd_ctrl_read16_rep(host, CTL_SD_DATA_PORT, buf, count >> 1);
-	else
-		sd_ctrl_write16_rep(host, CTL_SD_DATA_PORT, buf, count >> 1);
-
-	/* if count was even number */
-	if (!(count & 0x1))
-		return;
-
-	/* if count was odd number */
-	buf8 = (u8 *)(buf + (count >> 1));
-
-	/*
-	 * FIXME
-	 *
-	 * driver and this function are assuming that
-	 * it is used as little endian
-	 */
-	if (is_read)
-		*buf8 = sd_ctrl_read16(host, CTL_SD_DATA_PORT) & 0xff;
-	else
-		sd_ctrl_write16(host, CTL_SD_DATA_PORT, *buf8);
-}
-
-/*
- * This chip always returns (at least?) as much data as you ask for.
- * I'm unsure what happens if you ask for less than a block. This should be
- * looked into to ensure that a funny length read doesn't hose the controller.
- */
-static void tmio_mmc_pio_irq(struct tmio_mmc_host *host)
-{
-	struct mmc_data *data = host->data;
-	void *sg_virt;
-	unsigned short *buf;
-	unsigned int count;
-	unsigned long flags;
-
-	if ((host->chan_tx || host->chan_rx) && !host->force_pio) {
-		pr_err("PIO IRQ in DMA mode!\n");
-		return;
-	} else if (!data) {
-		pr_debug("Spurious PIO IRQ\n");
-		return;
-	}
-
-	sg_virt = tmio_mmc_kmap_atomic(host->sg_ptr, &flags);
-	buf = (unsigned short *)(sg_virt + host->sg_off);
-
-	count = host->sg_ptr->length - host->sg_off;
-	if (count > data->blksz)
-		count = data->blksz;
-
-	pr_debug("count: %08x offset: %08x flags %08x\n",
-		 count, host->sg_off, data->flags);
-
-	/* Transfer the data */
-	tmio_mmc_transfer_data(host, buf, count);
-
-	host->sg_off += count;
-
-	tmio_mmc_kunmap_atomic(host->sg_ptr, &flags, sg_virt);
-
-	if (host->sg_off == host->sg_ptr->length)
-		tmio_mmc_next_sg(host);
-
-	return;
-}
-
-static void tmio_mmc_check_bounce_buffer(struct tmio_mmc_host *host)
-{
-	if (host->sg_ptr == &host->bounce_sg) {
-		unsigned long flags;
-		void *sg_vaddr = tmio_mmc_kmap_atomic(host->sg_orig, &flags);
-		memcpy(sg_vaddr, host->bounce_buf, host->bounce_sg.length);
-		tmio_mmc_kunmap_atomic(host->sg_orig, &flags, sg_vaddr);
-	}
-}
-
-/* needs to be called with host->lock held */
-void tmio_mmc_do_data_irq(struct tmio_mmc_host *host)
-{
-	struct mmc_data *data = host->data;
-	struct mmc_command *stop;
-
-	host->data = NULL;
-
-	if (!data) {
-		dev_warn(&host->pdev->dev, "Spurious data end IRQ\n");
-		return;
-	}
-	stop = data->stop;
-
-	/* FIXME - return correct transfer count on errors */
-	if (!data->error)
-		data->bytes_xfered = data->blocks * data->blksz;
-	else
-		data->bytes_xfered = 0;
-
-	pr_debug("Completed data request\n");
-
-	/*
-	 * FIXME: other drivers allow an optional stop command of any given type
-	 *        which we dont do, as the chip can auto generate them.
-	 *        Perhaps we can be smarter about when to use auto CMD12 and
-	 *        only issue the auto request when we know this is the desired
-	 *        stop command, allowing fallback to the stop command the
-	 *        upper layers expect. For now, we do what works.
-	 */
-
-	if (data->flags & MMC_DATA_READ) {
-		if (host->chan_rx && !host->force_pio)
-			tmio_mmc_check_bounce_buffer(host);
-		dev_dbg(&host->pdev->dev, "Complete Rx request %p\n",
-			host->mrq);
-	} else {
-		dev_dbg(&host->pdev->dev, "Complete Tx request %p\n",
-			host->mrq);
-	}
-
-	if (stop) {
-		if (stop->opcode != MMC_STOP_TRANSMISSION || stop->arg)
-			dev_err(&host->pdev->dev, "unsupported stop: CMD%u,0x%x. We did CMD12,0\n",
-				stop->opcode, stop->arg);
-
-		/* fill in response from auto CMD12 */
-		stop->resp[0] = sd_ctrl_read16_and_16_as_32(host, CTL_RESPONSE);
-
-		sd_ctrl_write16(host, CTL_STOP_INTERNAL_ACTION, 0);
-	}
-
-	schedule_work(&host->done);
-}
-EXPORT_SYMBOL(tmio_mmc_do_data_irq);
-
-static void tmio_mmc_data_irq(struct tmio_mmc_host *host, unsigned int stat)
-{
-	struct mmc_data *data;
-	spin_lock(&host->lock);
-	data = host->data;
-
-	if (!data)
-		goto out;
-
-	if (stat & TMIO_STAT_CRCFAIL || stat & TMIO_STAT_STOPBIT_ERR ||
-	    stat & TMIO_STAT_TXUNDERRUN)
-		data->error = -EILSEQ;
-	if (host->chan_tx && (data->flags & MMC_DATA_WRITE) && !host->force_pio) {
-		u32 status = sd_ctrl_read16_and_16_as_32(host, CTL_STATUS);
-		bool done = false;
-
-		/*
-		 * Has all data been written out yet? Testing on SuperH showed,
-		 * that in most cases the first interrupt comes already with the
-		 * BUSY status bit clear, but on some operations, like mount or
-		 * in the beginning of a write / sync / umount, there is one
-		 * DATAEND interrupt with the BUSY bit set, in this cases
-		 * waiting for one more interrupt fixes the problem.
-		 */
-		if (host->pdata->flags & TMIO_MMC_HAS_IDLE_WAIT) {
-			if (status & TMIO_STAT_SCLKDIVEN)
-				done = true;
-		} else {
-			if (!(status & TMIO_STAT_CMD_BUSY))
-				done = true;
-		}
-
-		if (done) {
-			tmio_mmc_disable_mmc_irqs(host, TMIO_STAT_DATAEND);
-			complete(&host->dma_dataend);
-		}
-	} else if (host->chan_rx && (data->flags & MMC_DATA_READ) && !host->force_pio) {
-		tmio_mmc_disable_mmc_irqs(host, TMIO_STAT_DATAEND);
-		complete(&host->dma_dataend);
-	} else {
-		tmio_mmc_do_data_irq(host);
-		tmio_mmc_disable_mmc_irqs(host, TMIO_MASK_READOP | TMIO_MASK_WRITEOP);
-	}
-out:
-	spin_unlock(&host->lock);
-}
-
-static void tmio_mmc_cmd_irq(struct tmio_mmc_host *host,
-	unsigned int stat)
-{
-	struct mmc_command *cmd = host->cmd;
-	int i, addr;
-
-	spin_lock(&host->lock);
-
-	if (!host->cmd) {
-		pr_debug("Spurious CMD irq\n");
-		goto out;
-	}
-
-	/* This controller is sicker than the PXA one. Not only do we need to
-	 * drop the top 8 bits of the first response word, we also need to
-	 * modify the order of the response for short response command types.
-	 */
-
-	for (i = 3, addr = CTL_RESPONSE ; i >= 0 ; i--, addr += 4)
-		cmd->resp[i] = sd_ctrl_read16_and_16_as_32(host, addr);
-
-	if (cmd->flags &  MMC_RSP_136) {
-		cmd->resp[0] = (cmd->resp[0] << 8) | (cmd->resp[1] >> 24);
-		cmd->resp[1] = (cmd->resp[1] << 8) | (cmd->resp[2] >> 24);
-		cmd->resp[2] = (cmd->resp[2] << 8) | (cmd->resp[3] >> 24);
-		cmd->resp[3] <<= 8;
-	} else if (cmd->flags & MMC_RSP_R3) {
-		cmd->resp[0] = cmd->resp[3];
-	}
-
-	if (stat & TMIO_STAT_CMDTIMEOUT)
-		cmd->error = -ETIMEDOUT;
-	else if ((stat & TMIO_STAT_CRCFAIL && cmd->flags & MMC_RSP_CRC) ||
-		 stat & TMIO_STAT_STOPBIT_ERR ||
-		 stat & TMIO_STAT_CMD_IDX_ERR)
-		cmd->error = -EILSEQ;
-
-	/* If there is data to handle we enable data IRQs here, and
-	 * we will ultimatley finish the request in the data_end handler.
-	 * If theres no data or we encountered an error, finish now.
-	 */
-	if (host->data && (!cmd->error || cmd->error == -EILSEQ)) {
-		if (host->data->flags & MMC_DATA_READ) {
-			if (host->force_pio || !host->chan_rx)
-				tmio_mmc_enable_mmc_irqs(host, TMIO_MASK_READOP);
-			else
-				tasklet_schedule(&host->dma_issue);
-		} else {
-			if (host->force_pio || !host->chan_tx)
-				tmio_mmc_enable_mmc_irqs(host, TMIO_MASK_WRITEOP);
-			else
-				tasklet_schedule(&host->dma_issue);
-		}
-	} else {
-		schedule_work(&host->done);
-	}
-
-out:
-	spin_unlock(&host->lock);
-}
-
-static bool __tmio_mmc_card_detect_irq(struct tmio_mmc_host *host,
-				      int ireg, int status)
-{
-	struct mmc_host *mmc = host->mmc;
-
-	/* Card insert / remove attempts */
-	if (ireg & (TMIO_STAT_CARD_INSERT | TMIO_STAT_CARD_REMOVE)) {
-		tmio_mmc_ack_mmc_irqs(host, TMIO_STAT_CARD_INSERT |
-			TMIO_STAT_CARD_REMOVE);
-		if ((((ireg & TMIO_STAT_CARD_REMOVE) && mmc->card) ||
-		     ((ireg & TMIO_STAT_CARD_INSERT) && !mmc->card)) &&
-		    !work_pending(&mmc->detect.work))
-			mmc_detect_change(host->mmc, msecs_to_jiffies(100));
-		return true;
-	}
-
-	return false;
-}
-
-static bool __tmio_mmc_sdcard_irq(struct tmio_mmc_host *host,
-				 int ireg, int status)
-{
-	/* Command completion */
-	if (ireg & (TMIO_STAT_CMDRESPEND | TMIO_STAT_CMDTIMEOUT)) {
-		tmio_mmc_ack_mmc_irqs(host,
-			     TMIO_STAT_CMDRESPEND |
-			     TMIO_STAT_CMDTIMEOUT);
-		tmio_mmc_cmd_irq(host, status);
-		return true;
-	}
-
-	/* Data transfer */
-	if (ireg & (TMIO_STAT_RXRDY | TMIO_STAT_TXRQ)) {
-		tmio_mmc_ack_mmc_irqs(host, TMIO_STAT_RXRDY | TMIO_STAT_TXRQ);
-		tmio_mmc_pio_irq(host);
-		return true;
-	}
-
-	/* Data transfer completion */
-	if (ireg & TMIO_STAT_DATAEND) {
-		tmio_mmc_ack_mmc_irqs(host, TMIO_STAT_DATAEND);
-		tmio_mmc_data_irq(host, status);
-		return true;
-	}
-
-	return false;
-}
-
-static void __tmio_mmc_sdio_irq(struct tmio_mmc_host *host)
-{
-	struct mmc_host *mmc = host->mmc;
-	struct tmio_mmc_data *pdata = host->pdata;
-	unsigned int ireg, status;
-	unsigned int sdio_status;
-
-	if (!(pdata->flags & TMIO_MMC_SDIO_IRQ))
-		return;
-
-	status = sd_ctrl_read16(host, CTL_SDIO_STATUS);
-	ireg = status & TMIO_SDIO_MASK_ALL & ~host->sdio_irq_mask;
-
-	sdio_status = status & ~TMIO_SDIO_MASK_ALL;
-	if (pdata->flags & TMIO_MMC_SDIO_STATUS_SETBITS)
-		sdio_status |= TMIO_SDIO_SETBITS_MASK;
-
-	sd_ctrl_write16(host, CTL_SDIO_STATUS, sdio_status);
-
-	if (mmc->caps & MMC_CAP_SDIO_IRQ && ireg & TMIO_SDIO_STAT_IOIRQ)
-		mmc_signal_sdio_irq(mmc);
-}
-
-irqreturn_t tmio_mmc_irq(int irq, void *devid)
-{
-	struct tmio_mmc_host *host = devid;
-	unsigned int ireg, status;
-
-	status = sd_ctrl_read16_and_16_as_32(host, CTL_STATUS);
-	ireg = status & TMIO_MASK_IRQ & ~host->sdcard_irq_mask;
-
-	pr_debug_status(status);
-	pr_debug_status(ireg);
-
-	/* Clear the status except the interrupt status */
-	sd_ctrl_write32_as_16_and_16(host, CTL_STATUS, TMIO_MASK_IRQ);
-
-	if (__tmio_mmc_card_detect_irq(host, ireg, status))
-		return IRQ_HANDLED;
-	if (__tmio_mmc_sdcard_irq(host, ireg, status))
-		return IRQ_HANDLED;
-
-	__tmio_mmc_sdio_irq(host);
-
-	return IRQ_HANDLED;
-}
-EXPORT_SYMBOL(tmio_mmc_irq);
-
-static int tmio_mmc_start_data(struct tmio_mmc_host *host,
-	struct mmc_data *data)
-{
-	struct tmio_mmc_data *pdata = host->pdata;
-
-	pr_debug("setup data transfer: blocksize %08x  nr_blocks %d\n",
-		 data->blksz, data->blocks);
-
-	/* Some hardware cannot perform 2 byte requests in 4/8 bit mode */
-	if (host->mmc->ios.bus_width == MMC_BUS_WIDTH_4 ||
-	    host->mmc->ios.bus_width == MMC_BUS_WIDTH_8) {
-		int blksz_2bytes = pdata->flags & TMIO_MMC_BLKSZ_2BYTES;
-
-		if (data->blksz < 2 || (data->blksz < 4 && !blksz_2bytes)) {
-			pr_err("%s: %d byte block unsupported in 4/8 bit mode\n",
-			       mmc_hostname(host->mmc), data->blksz);
-			return -EINVAL;
-		}
-	}
-
-	tmio_mmc_init_sg(host, data);
-	host->data = data;
-
-	/* Set transfer length / blocksize */
-	sd_ctrl_write16(host, CTL_SD_XFER_LEN, data->blksz);
-	sd_ctrl_write16(host, CTL_XFER_BLK_COUNT, data->blocks);
-
-	tmio_mmc_start_dma(host, data);
-
-	return 0;
-}
-
-static void tmio_mmc_hw_reset(struct mmc_host *mmc)
-{
-	struct tmio_mmc_host *host = mmc_priv(mmc);
-
-	if (host->hw_reset)
-		host->hw_reset(host);
-}
-
-static int tmio_mmc_execute_tuning(struct mmc_host *mmc, u32 opcode)
-{
-	struct tmio_mmc_host *host = mmc_priv(mmc);
-	int i, ret = 0;
-
-	if (!host->init_tuning || !host->select_tuning)
-		/* Tuning is not supported */
-		goto out;
-
-	host->tap_num = host->init_tuning(host);
-	if (!host->tap_num)
-		/* Tuning is not supported */
-		goto out;
-
-	if (host->tap_num * 2 >= sizeof(host->taps) * BITS_PER_BYTE) {
-		dev_warn_once(&host->pdev->dev,
-		      "Too many taps, skipping tuning. Please consider updating size of taps field of tmio_mmc_host\n");
-		goto out;
-	}
-
-	bitmap_zero(host->taps, host->tap_num * 2);
-
-	/* Issue CMD19 twice for each tap */
-	for (i = 0; i < 2 * host->tap_num; i++) {
-		if (host->prepare_tuning)
-			host->prepare_tuning(host, i % host->tap_num);
-
-		ret = mmc_send_tuning(mmc, opcode, NULL);
-		if (ret && ret != -EILSEQ)
-			goto out;
-		if (ret == 0)
-			set_bit(i, host->taps);
-
-		mdelay(1);
-	}
-
-	ret = host->select_tuning(host);
-
-out:
-	if (ret < 0) {
-		dev_warn(&host->pdev->dev, "Tuning procedure failed\n");
-		tmio_mmc_hw_reset(mmc);
-	}
-
-	return ret;
-}
-
-/* Process requests from the MMC layer */
-static void tmio_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
-{
-	struct tmio_mmc_host *host = mmc_priv(mmc);
-	unsigned long flags;
-	int ret;
-
-	spin_lock_irqsave(&host->lock, flags);
-
-	if (host->mrq) {
-		pr_debug("request not null\n");
-		if (IS_ERR(host->mrq)) {
-			spin_unlock_irqrestore(&host->lock, flags);
-			mrq->cmd->error = -EAGAIN;
-			mmc_request_done(mmc, mrq);
-			return;
-		}
-	}
-
-	host->last_req_ts = jiffies;
-	wmb();
-	host->mrq = mrq;
-
-	spin_unlock_irqrestore(&host->lock, flags);
-
-	if (mrq->data) {
-		ret = tmio_mmc_start_data(host, mrq->data);
-		if (ret)
-			goto fail;
-	}
-
-	ret = tmio_mmc_start_command(host, mrq->cmd);
-	if (!ret) {
-		schedule_delayed_work(&host->delayed_reset_work,
-				      msecs_to_jiffies(CMDREQ_TIMEOUT));
-		return;
-	}
-
-fail:
-	host->force_pio = false;
-	host->mrq = NULL;
-	mrq->cmd->error = ret;
-	mmc_request_done(mmc, mrq);
-}
-
-static int tmio_mmc_clk_enable(struct tmio_mmc_host *host)
-{
-	if (!host->clk_enable)
-		return -ENOTSUPP;
-
-	return host->clk_enable(host);
-}
-
-static void tmio_mmc_clk_disable(struct tmio_mmc_host *host)
-{
-	if (host->clk_disable)
-		host->clk_disable(host);
-}
-
-static void tmio_mmc_power_on(struct tmio_mmc_host *host, unsigned short vdd)
-{
-	struct mmc_host *mmc = host->mmc;
-	int ret = 0;
-
-	/* .set_ios() is returning void, so, no chance to report an error */
-
-	if (host->set_pwr)
-		host->set_pwr(host->pdev, 1);
-
-	if (!IS_ERR(mmc->supply.vmmc)) {
-		ret = mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
-		/*
-		 * Attention: empiric value. With a b43 WiFi SDIO card this
-		 * delay proved necessary for reliable card-insertion probing.
-		 * 100us were not enough. Is this the same 140us delay, as in
-		 * tmio_mmc_set_ios()?
-		 */
-		udelay(200);
-	}
-	/*
-	 * It seems, VccQ should be switched on after Vcc, this is also what the
-	 * omap_hsmmc.c driver does.
-	 */
-	if (!IS_ERR(mmc->supply.vqmmc) && !ret) {
-		ret = regulator_enable(mmc->supply.vqmmc);
-		udelay(200);
-	}
-
-	if (ret < 0)
-		dev_dbg(&host->pdev->dev, "Regulators failed to power up: %d\n",
-			ret);
-}
-
-static void tmio_mmc_power_off(struct tmio_mmc_host *host)
-{
-	struct mmc_host *mmc = host->mmc;
-
-	if (!IS_ERR(mmc->supply.vqmmc))
-		regulator_disable(mmc->supply.vqmmc);
-
-	if (!IS_ERR(mmc->supply.vmmc))
-		mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);
-
-	if (host->set_pwr)
-		host->set_pwr(host->pdev, 0);
-}
-
-static void tmio_mmc_set_bus_width(struct tmio_mmc_host *host,
-				unsigned char bus_width)
-{
-	u16 reg = sd_ctrl_read16(host, CTL_SD_MEM_CARD_OPT)
-				& ~(CARD_OPT_WIDTH | CARD_OPT_WIDTH8);
-
-	/* reg now applies to MMC_BUS_WIDTH_4 */
-	if (bus_width == MMC_BUS_WIDTH_1)
-		reg |= CARD_OPT_WIDTH;
-	else if (bus_width == MMC_BUS_WIDTH_8)
-		reg |= CARD_OPT_WIDTH8;
-
-	sd_ctrl_write16(host, CTL_SD_MEM_CARD_OPT, reg);
-}
-
-/* Set MMC clock / power.
- * Note: This controller uses a simple divider scheme therefore it cannot
- * run a MMC card at full speed (20MHz). The max clock is 24MHz on SD, but as
- * MMC wont run that fast, it has to be clocked at 12MHz which is the next
- * slowest setting.
- */
-static void tmio_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
-{
-	struct tmio_mmc_host *host = mmc_priv(mmc);
-	struct device *dev = &host->pdev->dev;
-	unsigned long flags;
-
-	mutex_lock(&host->ios_lock);
-
-	spin_lock_irqsave(&host->lock, flags);
-	if (host->mrq) {
-		if (IS_ERR(host->mrq)) {
-			dev_dbg(dev,
-				"%s.%d: concurrent .set_ios(), clk %u, mode %u\n",
-				current->comm, task_pid_nr(current),
-				ios->clock, ios->power_mode);
-			host->mrq = ERR_PTR(-EINTR);
-		} else {
-			dev_dbg(dev,
-				"%s.%d: CMD%u active since %lu, now %lu!\n",
-				current->comm, task_pid_nr(current),
-				host->mrq->cmd->opcode, host->last_req_ts, jiffies);
-		}
-		spin_unlock_irqrestore(&host->lock, flags);
-
-		mutex_unlock(&host->ios_lock);
-		return;
-	}
-
-	host->mrq = ERR_PTR(-EBUSY);
-
-	spin_unlock_irqrestore(&host->lock, flags);
-
-	switch (ios->power_mode) {
-	case MMC_POWER_OFF:
-		tmio_mmc_power_off(host);
-		tmio_mmc_clk_stop(host);
-		break;
-	case MMC_POWER_UP:
-		tmio_mmc_power_on(host, ios->vdd);
-		tmio_mmc_set_clock(host, ios->clock);
-		tmio_mmc_set_bus_width(host, ios->bus_width);
-		break;
-	case MMC_POWER_ON:
-		tmio_mmc_set_clock(host, ios->clock);
-		tmio_mmc_set_bus_width(host, ios->bus_width);
-		break;
-	}
-
-	/* Let things settle. delay taken from winCE driver */
-	udelay(140);
-	if (PTR_ERR(host->mrq) == -EINTR)
-		dev_dbg(&host->pdev->dev,
-			"%s.%d: IOS interrupted: clk %u, mode %u",
-			current->comm, task_pid_nr(current),
-			ios->clock, ios->power_mode);
-	host->mrq = NULL;
-
-	host->clk_cache = ios->clock;
-
-	mutex_unlock(&host->ios_lock);
-}
-
-static int tmio_mmc_get_ro(struct mmc_host *mmc)
-{
-	struct tmio_mmc_host *host = mmc_priv(mmc);
-	struct tmio_mmc_data *pdata = host->pdata;
-	int ret = mmc_gpio_get_ro(mmc);
-	if (ret >= 0)
-		return ret;
-
-	ret = !((pdata->flags & TMIO_MMC_WRPROTECT_DISABLE) ||
-		(sd_ctrl_read16_and_16_as_32(host, CTL_STATUS) & TMIO_STAT_WRPROTECT));
-
-	return ret;
-}
-
-static int tmio_multi_io_quirk(struct mmc_card *card,
-			       unsigned int direction, int blk_size)
-{
-	struct tmio_mmc_host *host = mmc_priv(card->host);
-
-	if (host->multi_io_quirk)
-		return host->multi_io_quirk(card, direction, blk_size);
-
-	return blk_size;
-}
-
-static struct mmc_host_ops tmio_mmc_ops = {
-	.request	= tmio_mmc_request,
-	.set_ios	= tmio_mmc_set_ios,
-	.get_ro         = tmio_mmc_get_ro,
-	.get_cd		= mmc_gpio_get_cd,
-	.enable_sdio_irq = tmio_mmc_enable_sdio_irq,
-	.multi_io_quirk	= tmio_multi_io_quirk,
-	.hw_reset	= tmio_mmc_hw_reset,
-	.execute_tuning = tmio_mmc_execute_tuning,
-};
-
-static int tmio_mmc_init_ocr(struct tmio_mmc_host *host)
-{
-	struct tmio_mmc_data *pdata = host->pdata;
-	struct mmc_host *mmc = host->mmc;
-
-	mmc_regulator_get_supply(mmc);
-
-	/* use ocr_mask if no regulator */
-	if (!mmc->ocr_avail)
-		mmc->ocr_avail =  pdata->ocr_mask;
-
-	/*
-	 * try again.
-	 * There is possibility that regulator has not been probed
-	 */
-	if (!mmc->ocr_avail)
-		return -EPROBE_DEFER;
-
-	return 0;
-}
-
-static void tmio_mmc_of_parse(struct platform_device *pdev,
-			      struct tmio_mmc_data *pdata)
-{
-	const struct device_node *np = pdev->dev.of_node;
-	if (!np)
-		return;
-
-	if (of_get_property(np, "toshiba,mmc-wrprotect-disable", NULL))
-		pdata->flags |= TMIO_MMC_WRPROTECT_DISABLE;
-}
-
-struct tmio_mmc_host*
-tmio_mmc_host_alloc(struct platform_device *pdev)
-{
-	struct tmio_mmc_host *host;
-	struct mmc_host *mmc;
-
-	mmc = mmc_alloc_host(sizeof(struct tmio_mmc_host), &pdev->dev);
-	if (!mmc)
-		return NULL;
-
-	host = mmc_priv(mmc);
-	host->mmc = mmc;
-	host->pdev = pdev;
-
-	return host;
-}
-EXPORT_SYMBOL(tmio_mmc_host_alloc);
-
-void tmio_mmc_host_free(struct tmio_mmc_host *host)
-{
-	mmc_free_host(host->mmc);
-}
-EXPORT_SYMBOL(tmio_mmc_host_free);
-
-int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
-			struct tmio_mmc_data *pdata,
-			const struct tmio_mmc_dma_ops *dma_ops)
-{
-	struct platform_device *pdev = _host->pdev;
-	struct mmc_host *mmc = _host->mmc;
-	struct resource *res_ctl;
-	int ret;
-	u32 irq_mask = TMIO_MASK_CMD;
-
-	tmio_mmc_of_parse(pdev, pdata);
-
-	if (!(pdata->flags & TMIO_MMC_HAS_IDLE_WAIT))
-		_host->write16_hook = NULL;
-
-	res_ctl = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res_ctl)
-		return -EINVAL;
-
-	ret = mmc_of_parse(mmc);
-	if (ret < 0)
-		return ret;
-
-	_host->pdata = pdata;
-	platform_set_drvdata(pdev, mmc);
-
-	_host->set_pwr = pdata->set_pwr;
-	_host->set_clk_div = pdata->set_clk_div;
-
-	ret = tmio_mmc_init_ocr(_host);
-	if (ret < 0)
-		return ret;
-
-	_host->ctl = devm_ioremap(&pdev->dev,
-				  res_ctl->start, resource_size(res_ctl));
-	if (!_host->ctl)
-		return -ENOMEM;
-
-	tmio_mmc_ops.card_busy = _host->card_busy;
-	tmio_mmc_ops.start_signal_voltage_switch = _host->start_signal_voltage_switch;
-	mmc->ops = &tmio_mmc_ops;
-
-	mmc->caps |= MMC_CAP_4_BIT_DATA | pdata->capabilities;
-	mmc->caps2 |= pdata->capabilities2;
-	mmc->max_segs = 32;
-	mmc->max_blk_size = 512;
-	mmc->max_blk_count = (PAGE_SIZE / mmc->max_blk_size) *
-		mmc->max_segs;
-	mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
-	mmc->max_seg_size = mmc->max_req_size;
-
-	_host->native_hotplug = !(pdata->flags & TMIO_MMC_USE_GPIO_CD ||
-				  mmc->caps & MMC_CAP_NEEDS_POLL ||
-				  !mmc_card_is_removable(mmc));
-
-	/*
-	 * On Gen2+, eMMC with NONREMOVABLE currently fails because native
-	 * hotplug gets disabled. It seems RuntimePM related yet we need further
-	 * research. Since we are planning a PM overhaul anyway, let's enforce
-	 * for now the device being active by enabling native hotplug always.
-	 */
-	if (pdata->flags & TMIO_MMC_MIN_RCAR2)
-		_host->native_hotplug = true;
-
-	if (tmio_mmc_clk_enable(_host) < 0) {
-		mmc->f_max = pdata->hclk;
-		mmc->f_min = mmc->f_max / 512;
-	}
-
-	/*
-	 * Check the sanity of mmc->f_min to prevent tmio_mmc_set_clock() from
-	 * looping forever...
-	 */
-	if (mmc->f_min == 0)
-		return -EINVAL;
-
-	/*
-	 * While using internal tmio hardware logic for card detection, we need
-	 * to ensure it stays powered for it to work.
-	 */
-	if (_host->native_hotplug)
-		pm_runtime_get_noresume(&pdev->dev);
-
-	tmio_mmc_clk_stop(_host);
-	tmio_mmc_reset(_host);
-
-	_host->sdcard_irq_mask = sd_ctrl_read16_and_16_as_32(_host, CTL_IRQ_MASK);
-	tmio_mmc_disable_mmc_irqs(_host, TMIO_MASK_ALL);
-
-	/* Unmask the IRQs we want to know about */
-	if (!_host->chan_rx)
-		irq_mask |= TMIO_MASK_READOP;
-	if (!_host->chan_tx)
-		irq_mask |= TMIO_MASK_WRITEOP;
-	if (!_host->native_hotplug)
-		irq_mask &= ~(TMIO_STAT_CARD_REMOVE | TMIO_STAT_CARD_INSERT);
-
-	_host->sdcard_irq_mask &= ~irq_mask;
-
-	_host->sdio_irq_enabled = false;
-	if (pdata->flags & TMIO_MMC_SDIO_IRQ) {
-		_host->sdio_irq_mask = TMIO_SDIO_MASK_ALL;
-		sd_ctrl_write16(_host, CTL_SDIO_IRQ_MASK, _host->sdio_irq_mask);
-		sd_ctrl_write16(_host, CTL_TRANSACTION_CTL, 0x0001);
-	}
-
-	spin_lock_init(&_host->lock);
-	mutex_init(&_host->ios_lock);
-
-	/* Init delayed work for request timeouts */
-	INIT_DELAYED_WORK(&_host->delayed_reset_work, tmio_mmc_reset_work);
-	INIT_WORK(&_host->done, tmio_mmc_done_work);
-
-	/* See if we also get DMA */
-	_host->dma_ops = dma_ops;
-	tmio_mmc_request_dma(_host, pdata);
-
-	pm_runtime_set_active(&pdev->dev);
-	pm_runtime_set_autosuspend_delay(&pdev->dev, 50);
-	pm_runtime_use_autosuspend(&pdev->dev);
-	pm_runtime_enable(&pdev->dev);
-
-	ret = mmc_add_host(mmc);
-	if (ret < 0) {
-		tmio_mmc_host_remove(_host);
-		return ret;
-	}
-
-	dev_pm_qos_expose_latency_limit(&pdev->dev, 100);
-
-	if (pdata->flags & TMIO_MMC_USE_GPIO_CD) {
-		ret = mmc_gpio_request_cd(mmc, pdata->cd_gpio, 0);
-		if (ret < 0) {
-			tmio_mmc_host_remove(_host);
-			return ret;
-		}
-		mmc_gpiod_request_cd_irq(mmc);
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(tmio_mmc_host_probe);
-
-void tmio_mmc_host_remove(struct tmio_mmc_host *host)
-{
-	struct platform_device *pdev = host->pdev;
-	struct mmc_host *mmc = host->mmc;
-
-	if (host->pdata->flags & TMIO_MMC_SDIO_IRQ)
-		sd_ctrl_write16(host, CTL_TRANSACTION_CTL, 0x0000);
-
-	if (!host->native_hotplug)
-		pm_runtime_get_sync(&pdev->dev);
-
-	dev_pm_qos_hide_latency_limit(&pdev->dev);
-
-	mmc_remove_host(mmc);
-	cancel_work_sync(&host->done);
-	cancel_delayed_work_sync(&host->delayed_reset_work);
-	tmio_mmc_release_dma(host);
-
-	pm_runtime_put_sync(&pdev->dev);
-	pm_runtime_disable(&pdev->dev);
-
-	tmio_mmc_clk_disable(host);
-}
-EXPORT_SYMBOL(tmio_mmc_host_remove);
-
-#ifdef CONFIG_PM
-int tmio_mmc_host_runtime_suspend(struct device *dev)
-{
-	struct mmc_host *mmc = dev_get_drvdata(dev);
-	struct tmio_mmc_host *host = mmc_priv(mmc);
-
-	tmio_mmc_disable_mmc_irqs(host, TMIO_MASK_ALL);
-
-	if (host->clk_cache)
-		tmio_mmc_clk_stop(host);
-
-	tmio_mmc_clk_disable(host);
-
-	return 0;
-}
-EXPORT_SYMBOL(tmio_mmc_host_runtime_suspend);
-
-static bool tmio_mmc_can_retune(struct tmio_mmc_host *host)
-{
-	return host->tap_num && mmc_can_retune(host->mmc);
-}
-
-int tmio_mmc_host_runtime_resume(struct device *dev)
-{
-	struct mmc_host *mmc = dev_get_drvdata(dev);
-	struct tmio_mmc_host *host = mmc_priv(mmc);
-
-	tmio_mmc_reset(host);
-	tmio_mmc_clk_enable(host);
-
-	if (host->clk_cache)
-		tmio_mmc_set_clock(host, host->clk_cache);
-
-	tmio_mmc_enable_dma(host, true);
-
-	if (tmio_mmc_can_retune(host) && host->select_tuning(host))
-		dev_warn(&host->pdev->dev, "Tuning selection failed\n");
-
-	return 0;
-}
-EXPORT_SYMBOL(tmio_mmc_host_runtime_resume);
-#endif
-
-MODULE_LICENSE("GPL v2");