[linux-2.6-block.git] / drivers / mmc / host / sh_mobile_sdhi.c

/*
 * SuperH Mobile SDHI
 *
 * Copyright (C) 2009 Magnus Damm
 *
 * 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 "Compaq ASIC3 support":
 *
 * Copyright 2001 Compaq Computer Corporation.
 * Copyright 2004-2005 Phil Blundell
 * Copyright 2007-2008 OpenedHand Ltd.
 *
 * Authors: Phil Blundell <pb@handhelds.org>,
 *	    Samuel Ortiz <sameo@openedhand.com>
 *
 */

#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/slab.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sh_mobile_sdhi.h>
#include <linux/mfd/tmio.h>
#include <linux/sh_dma.h>
#include <linux/delay.h>

#include "tmio_mmc.h"

#define EXT_ACC           0xe4

struct sh_mobile_sdhi_of_data {
	unsigned long tmio_flags;
};

static const struct sh_mobile_sdhi_of_data sh_mobile_sdhi_of_cfg[] = {
	{
		.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
	},
};

struct sh_mobile_sdhi {
	struct clk *clk;
	struct tmio_mmc_data mmc_data;
	struct tmio_mmc_dma dma_priv;
};

static int sh_mobile_sdhi_clk_enable(struct platform_device *pdev, unsigned int *f)
{
	struct mmc_host *mmc = platform_get_drvdata(pdev);
	struct tmio_mmc_host *host = mmc_priv(mmc);
	struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data);
	int ret = clk_prepare_enable(priv->clk);
	if (ret < 0)
		return ret;

	*f = clk_get_rate(priv->clk);
	return 0;
}

static void sh_mobile_sdhi_clk_disable(struct platform_device *pdev)
{
	struct mmc_host *mmc = platform_get_drvdata(pdev);
	struct tmio_mmc_host *host = mmc_priv(mmc);
	struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data);
	clk_disable_unprepare(priv->clk);
}

static int sh_mobile_sdhi_wait_idle(struct tmio_mmc_host *host)
{
	int timeout = 1000;

	while (--timeout && !(sd_ctrl_read16(host, CTL_STATUS2) & (1 << 13)))
		udelay(1);

	if (!timeout) {
		dev_warn(host->pdata->dev, "timeout waiting for SD bus idle\n");
		return -EBUSY;
	}

	return 0;
}

static int sh_mobile_sdhi_write16_hook(struct tmio_mmc_host *host, int addr)
{
	switch (addr)
	{
	case CTL_SD_CMD:
	case CTL_STOP_INTERNAL_ACTION:
	case CTL_XFER_BLK_COUNT:
	case CTL_SD_CARD_CLK_CTL:
	case CTL_SD_XFER_LEN:
	case CTL_SD_MEM_CARD_OPT:
	case CTL_TRANSACTION_CTL:
	case CTL_DMA_ENABLE:
		return sh_mobile_sdhi_wait_idle(host);
	}

	return 0;
}

static void sh_mobile_sdhi_cd_wakeup(const struct platform_device *pdev)
{
	mmc_detect_change(platform_get_drvdata(pdev), msecs_to_jiffies(100));
}

static const struct sh_mobile_sdhi_ops sdhi_ops = {
	.cd_wakeup = sh_mobile_sdhi_cd_wakeup,
};

static const struct of_device_id sh_mobile_sdhi_of_match[] = {
	{ .compatible = "renesas,sdhi-shmobile" },
	{ .compatible = "renesas,sdhi-sh7372" },
	{ .compatible = "renesas,sdhi-sh73a0", .data = &sh_mobile_sdhi_of_cfg[0], },
	{ .compatible = "renesas,sdhi-r8a73a4", .data = &sh_mobile_sdhi_of_cfg[0], },
	{ .compatible = "renesas,sdhi-r8a7740", .data = &sh_mobile_sdhi_of_cfg[0], },
	{ .compatible = "renesas,sdhi-r8a7778", .data = &sh_mobile_sdhi_of_cfg[0], },
	{ .compatible = "renesas,sdhi-r8a7779", .data = &sh_mobile_sdhi_of_cfg[0], },
	{ .compatible = "renesas,sdhi-r8a7790", .data = &sh_mobile_sdhi_of_cfg[0], },
	{},
};
MODULE_DEVICE_TABLE(of, sh_mobile_sdhi_of_match);

static int sh_mobile_sdhi_probe(struct platform_device *pdev)
{
	const struct of_device_id *of_id =
		of_match_device(sh_mobile_sdhi_of_match, &pdev->dev);
	struct sh_mobile_sdhi *priv;
	struct tmio_mmc_data *mmc_data;
	struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;
	struct tmio_mmc_host *host;
	struct resource *res;
	int irq, ret, i = 0;
	bool multiplexed_isr = true;
	struct tmio_mmc_dma *dma_priv;
	u16 ver;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	if (!res)
		return -EINVAL;

	priv = devm_kzalloc(&pdev->dev, sizeof(struct sh_mobile_sdhi), GFP_KERNEL);
	if (priv == NULL) {
		dev_err(&pdev->dev, "kzalloc failed\n");
		return -ENOMEM;
	}

	mmc_data = &priv->mmc_data;
	dma_priv = &priv->dma_priv;

	if (p) {
		if (p->init) {
			ret = p->init(pdev, &sdhi_ops);
			if (ret)
				return ret;
		}
	}

	priv->clk = devm_clk_get(&pdev->dev, NULL);
	if (IS_ERR(priv->clk)) {
		ret = PTR_ERR(priv->clk);
		dev_err(&pdev->dev, "cannot get clock: %d\n", ret);
		goto eclkget;
	}

	mmc_data->clk_enable = sh_mobile_sdhi_clk_enable;
	mmc_data->clk_disable = sh_mobile_sdhi_clk_disable;
	mmc_data->capabilities = MMC_CAP_MMC_HIGHSPEED;
	mmc_data->write16_hook = sh_mobile_sdhi_write16_hook;
	if (p) {
		mmc_data->flags = p->tmio_flags;
		mmc_data->ocr_mask = p->tmio_ocr_mask;
		mmc_data->capabilities |= p->tmio_caps;
		mmc_data->capabilities2 |= p->tmio_caps2;
		mmc_data->cd_gpio = p->cd_gpio;

		if (p->dma_slave_tx > 0 && p->dma_slave_rx > 0) {
			/*
			 * Yes, we have to provide slave IDs twice to TMIO:
			 * once as a filter parameter and once for channel
			 * configuration as an explicit slave ID
			 */
			dma_priv->chan_priv_tx = (void *)p->dma_slave_tx;
			dma_priv->chan_priv_rx = (void *)p->dma_slave_rx;
			dma_priv->slave_id_tx = p->dma_slave_tx;
			dma_priv->slave_id_rx = p->dma_slave_rx;
		}
	}

	dma_priv->alignment_shift = 1; /* 2-byte alignment */
	dma_priv->filter = shdma_chan_filter;

	mmc_data->dma = dma_priv;

	/*
	 * All SDHI blocks support 2-byte and larger block sizes in 4-bit
	 * bus width mode.
	 */
	mmc_data->flags |= TMIO_MMC_BLKSZ_2BYTES;

	/*
	 * All SDHI blocks support SDIO IRQ signalling.
	 */
	mmc_data->flags |= TMIO_MMC_SDIO_IRQ;

	if (of_id && of_id->data) {
		const struct sh_mobile_sdhi_of_data *of_data = of_id->data;
		mmc_data->flags |= of_data->tmio_flags;
	}

	/* SD control register space size is 0x100, 0x200 for bus_shift=1 */
	mmc_data->bus_shift = resource_size(res) >> 9;

	ret = tmio_mmc_host_probe(&host, pdev, mmc_data);
	if (ret < 0)
		goto eprobe;

	/*
	 * FIXME:
	 * this Workaround can be more clever method
	 */
	ver = sd_ctrl_read16(host, CTL_VERSION);
	if (ver == 0xCB0D)
		sd_ctrl_write16(host, EXT_ACC, 1);

	/*
	 * Allow one or more specific (named) ISRs or
	 * one or more multiplexed (un-named) ISRs.
	 */

	irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_CARD_DETECT);
	if (irq >= 0) {
		multiplexed_isr = false;
		ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_card_detect_irq, 0,
				  dev_name(&pdev->dev), host);
		if (ret)
			goto eirq;
	}

	irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_SDIO);
	if (irq >= 0) {
		multiplexed_isr = false;
		ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_sdio_irq, 0,
				  dev_name(&pdev->dev), host);
		if (ret)
			goto eirq;
	}

	irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_SDCARD);
	if (irq >= 0) {
		multiplexed_isr = false;
		ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_sdcard_irq, 0,
				  dev_name(&pdev->dev), host);
		if (ret)
			goto eirq;
	} else if (!multiplexed_isr) {
		dev_err(&pdev->dev,
			"Principal SD-card IRQ is missing among named interrupts\n");
		ret = irq;
		goto eirq;
	}

	if (multiplexed_isr) {
		while (1) {
			irq = platform_get_irq(pdev, i);
			if (irq < 0)
				break;
			i++;
			ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_irq, 0,
					  dev_name(&pdev->dev), host);
			if (ret)
				goto eirq;
		}

		/* There must be at least one IRQ source */
		if (!i) {
			ret = irq;
			goto eirq;
		}
	}

	dev_info(&pdev->dev, "%s base at 0x%08lx clock rate %u MHz\n",
		 mmc_hostname(host->mmc), (unsigned long)
		 (platform_get_resource(pdev, IORESOURCE_MEM, 0)->start),
		 host->mmc->f_max / 1000000);

	return ret;

eirq:
	tmio_mmc_host_remove(host);
eprobe:
eclkget:
	if (p && p->cleanup)
		p->cleanup(pdev);
	return ret;
}

static int sh_mobile_sdhi_remove(struct platform_device *pdev)
{
	struct mmc_host *mmc = platform_get_drvdata(pdev);
	struct tmio_mmc_host *host = mmc_priv(mmc);
	struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;

	tmio_mmc_host_remove(host);

	if (p && p->cleanup)
		p->cleanup(pdev);

	return 0;
}

static const struct dev_pm_ops tmio_mmc_dev_pm_ops = {
	.suspend = tmio_mmc_host_suspend,
	.resume = tmio_mmc_host_resume,
	.runtime_suspend = tmio_mmc_host_runtime_suspend,
	.runtime_resume = tmio_mmc_host_runtime_resume,
};

static struct platform_driver sh_mobile_sdhi_driver = {
	.driver		= {
		.name	= "sh_mobile_sdhi",
		.owner	= THIS_MODULE,
		.pm	= &tmio_mmc_dev_pm_ops,
		.of_match_table = sh_mobile_sdhi_of_match,
	},
	.probe		= sh_mobile_sdhi_probe,
	.remove		= sh_mobile_sdhi_remove,
};

module_platform_driver(sh_mobile_sdhi_driver);

MODULE_DESCRIPTION("SuperH Mobile SDHI driver");
MODULE_AUTHOR("Magnus Damm");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:sh_mobile_sdhi");
Commit	Line	Data
a87d5638 MD	1	/*
	2	* SuperH Mobile SDHI
	3	*
	4	* Copyright (C) 2009 Magnus Damm
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*
	10	* Based on "Compaq ASIC3 support":
	11	*
	12	* Copyright 2001 Compaq Computer Corporation.
	13	* Copyright 2004-2005 Phil Blundell
	14	* Copyright 2007-2008 OpenedHand Ltd.
	15	*
	16	* Authors: Phil Blundell <pb@handhelds.org>,
	17	* Samuel Ortiz <sameo@openedhand.com>
	18	*
	19	*/
	20
	21	#include <linux/kernel.h>
	22	#include <linux/clk.h>
5a0e3ad6	23	#include <linux/slab.h>
c7bb4487	24	#include <linux/mod_devicetable.h>
88b47679	25	#include <linux/module.h>
5a00a971	26	#include <linux/of_device.h>
a87d5638	27	#include <linux/platform_device.h>
3c49e810	28	#include <linux/mmc/host.h>
42051e8a	29	#include <linux/mmc/sh_mobile_sdhi.h>
a87d5638	30	#include <linux/mfd/tmio.h>
056676da	31	#include <linux/sh_dma.h>
973ed3af	32	#include <linux/delay.h>
a87d5638	33
42051e8a GL	34	#include "tmio_mmc.h"
42051e8a GL	35
e3c418f1 KM	36	#define EXT_ACC 0xe4
e3c418f1 KM	37
5a00a971 GL	38	struct sh_mobile_sdhi_of_data {
	39	unsigned long tmio_flags;
	40	};
	41
	42	static const struct sh_mobile_sdhi_of_data sh_mobile_sdhi_of_cfg[] = {
	43	{
	44	.tmio_flags = TMIO_MMC_HAS_IDLE_WAIT,
	45	},
	46	};
	47
a87d5638 MD	48	struct sh_mobile_sdhi {
	49	struct clk *clk;
	50	struct tmio_mmc_data mmc_data;
056676da	51	struct tmio_mmc_dma dma_priv;
a87d5638 MD	52	};
a87d5638 MD	53
56c49287 GL	54	static int sh_mobile_sdhi_clk_enable(struct platform_device pdev, unsigned int f)
56c49287 GL	55	{
6e2c0f3f	56	struct mmc_host *mmc = platform_get_drvdata(pdev);
56c49287 GL	57	struct tmio_mmc_host *host = mmc_priv(mmc);
56c49287 GL	58	struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data);
00fb3d2a	59	int ret = clk_prepare_enable(priv->clk);
56c49287 GL	60	if (ret < 0)
	61	return ret;
	62
	63	*f = clk_get_rate(priv->clk);
	64	return 0;
	65	}
	66
	67	static void sh_mobile_sdhi_clk_disable(struct platform_device *pdev)
	68	{
6e2c0f3f	69	struct mmc_host *mmc = platform_get_drvdata(pdev);
56c49287 GL	70	struct tmio_mmc_host *host = mmc_priv(mmc);
56c49287 GL	71	struct sh_mobile_sdhi *priv = container_of(host->pdata, struct sh_mobile_sdhi, mmc_data);
00fb3d2a	72	clk_disable_unprepare(priv->clk);
56c49287 GL	73	}
56c49287 GL	74
973ed3af SH	75	static int sh_mobile_sdhi_wait_idle(struct tmio_mmc_host *host)
	76	{
	77	int timeout = 1000;
	78
	79	while (--timeout && !(sd_ctrl_read16(host, CTL_STATUS2) & (1 << 13)))
	80	udelay(1);
	81
	82	if (!timeout) {
	83	dev_warn(host->pdata->dev, "timeout waiting for SD bus idle\n");
	84	return -EBUSY;
	85	}
	86
	87	return 0;
	88	}
	89
	90	static int sh_mobile_sdhi_write16_hook(struct tmio_mmc_host *host, int addr)
	91	{
	92	switch (addr)
	93	{
	94	case CTL_SD_CMD:
	95	case CTL_STOP_INTERNAL_ACTION:
	96	case CTL_XFER_BLK_COUNT:
	97	case CTL_SD_CARD_CLK_CTL:
	98	case CTL_SD_XFER_LEN:
	99	case CTL_SD_MEM_CARD_OPT:
	100	case CTL_TRANSACTION_CTL:
	101	case CTL_DMA_ENABLE:
	102	return sh_mobile_sdhi_wait_idle(host);
	103	}
	104
	105	return 0;
	106	}
	107
7f524217 GL	108	static void sh_mobile_sdhi_cd_wakeup(const struct platform_device *pdev)
7f524217 GL	109	{
6e2c0f3f	110	mmc_detect_change(platform_get_drvdata(pdev), msecs_to_jiffies(100));
7f524217 GL	111	}
	112
	113	static const struct sh_mobile_sdhi_ops sdhi_ops = {
	114	.cd_wakeup = sh_mobile_sdhi_cd_wakeup,
	115	};
	116
5a00a971	117	static const struct of_device_id sh_mobile_sdhi_of_match[] = {
df1d0584 GL	118	{ .compatible = "renesas,sdhi-shmobile" },
	119	{ .compatible = "renesas,sdhi-sh7372" },
	120	{ .compatible = "renesas,sdhi-sh73a0", .data = &sh_mobile_sdhi_of_cfg[0], },
	121	{ .compatible = "renesas,sdhi-r8a73a4", .data = &sh_mobile_sdhi_of_cfg[0], },
	122	{ .compatible = "renesas,sdhi-r8a7740", .data = &sh_mobile_sdhi_of_cfg[0], },
	123	{ .compatible = "renesas,sdhi-r8a7778", .data = &sh_mobile_sdhi_of_cfg[0], },
	124	{ .compatible = "renesas,sdhi-r8a7779", .data = &sh_mobile_sdhi_of_cfg[0], },
	125	{ .compatible = "renesas,sdhi-r8a7790", .data = &sh_mobile_sdhi_of_cfg[0], },
5a00a971 GL	126	{},
	127	};
	128	MODULE_DEVICE_TABLE(of, sh_mobile_sdhi_of_match);
	129
c3be1efd	130	static int sh_mobile_sdhi_probe(struct platform_device *pdev)
a87d5638	131	{
5a00a971 GL	132	const struct of_device_id *of_id =
5a00a971 GL	133	of_match_device(sh_mobile_sdhi_of_match, &pdev->dev);
a87d5638	134	struct sh_mobile_sdhi *priv;
056676da GL	135	struct tmio_mmc_data *mmc_data;
056676da GL	136	struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;
42051e8a	137	struct tmio_mmc_host *host;
3b159a6e	138	struct resource *res;
d5098cb6 SH	139	int irq, ret, i = 0;
d5098cb6 SH	140	bool multiplexed_isr = true;
87ae7bbe	141	struct tmio_mmc_dma *dma_priv;
e3c418f1	142	u16 ver;
a87d5638	143
3b159a6e KM	144	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	145	if (!res)
	146	return -EINVAL;
	147
ac51b961	148	priv = devm_kzalloc(&pdev->dev, sizeof(struct sh_mobile_sdhi), GFP_KERNEL);
a87d5638 MD	149	if (priv == NULL) {
	150	dev_err(&pdev->dev, "kzalloc failed\n");
	151	return -ENOMEM;
	152	}
	153
056676da	154	mmc_data = &priv->mmc_data;
87ae7bbe	155	dma_priv = &priv->dma_priv;
056676da	156
c7bb4487	157	if (p) {
c7bb4487 GL	158	if (p->init) {
	159	ret = p->init(pdev, &sdhi_ops);
	160	if (ret)
ac51b961	161	return ret;
c7bb4487	162	}
e82b4ac9 BH	163	}
e82b4ac9 BH	164
ac51b961	165	priv->clk = devm_clk_get(&pdev->dev, NULL);
a87d5638	166	if (IS_ERR(priv->clk)) {
a87d5638	167	ret = PTR_ERR(priv->clk);
56ae1adc	168	dev_err(&pdev->dev, "cannot get clock: %d\n", ret);
42051e8a	169	goto eclkget;
a87d5638 MD	170	}
a87d5638 MD	171
56c49287 GL	172	mmc_data->clk_enable = sh_mobile_sdhi_clk_enable;
56c49287 GL	173	mmc_data->clk_disable = sh_mobile_sdhi_clk_disable;
056676da	174	mmc_data->capabilities = MMC_CAP_MMC_HIGHSPEED;
7b952137	175	mmc_data->write16_hook = sh_mobile_sdhi_write16_hook;
bb0fe533	176	if (p) {
f87c20a9	177	mmc_data->flags = p->tmio_flags;
bb0fe533	178	mmc_data->ocr_mask = p->tmio_ocr_mask;
998283e2	179	mmc_data->capabilities \|= p->tmio_caps;
d7d8d500	180	mmc_data->capabilities2 \|= p->tmio_caps2;
58126c87	181	mmc_data->cd_gpio = p->cd_gpio;
42051e8a	182
3e713373	183	if (p->dma_slave_tx > 0 && p->dma_slave_rx > 0) {
eec95ee2 GL	184	/*
	185	* Yes, we have to provide slave IDs twice to TMIO:
	186	* once as a filter parameter and once for channel
	187	* configuration as an explicit slave ID
	188	*/
	189	dma_priv->chan_priv_tx = (void *)p->dma_slave_tx;
	190	dma_priv->chan_priv_rx = (void *)p->dma_slave_rx;
	191	dma_priv->slave_id_tx = p->dma_slave_tx;
	192	dma_priv->slave_id_rx = p->dma_slave_rx;
42051e8a	193	}
bb0fe533	194	}
056676da	195
87ae7bbe GL	196	dma_priv->alignment_shift = 1; /* 2-byte alignment */
	197	dma_priv->filter = shdma_chan_filter;
	198
	199	mmc_data->dma = dma_priv;
	200
f1334fb3 YG	201	/*
	202	* All SDHI blocks support 2-byte and larger block sizes in 4-bit
	203	* bus width mode.
	204	*/
	205	mmc_data->flags \|= TMIO_MMC_BLKSZ_2BYTES;
	206
23b66071 AH	207	/*
	208	* All SDHI blocks support SDIO IRQ signalling.
	209	*/
	210	mmc_data->flags \|= TMIO_MMC_SDIO_IRQ;
	211
5a00a971 GL	212	if (of_id && of_id->data) {
	213	const struct sh_mobile_sdhi_of_data *of_data = of_id->data;
	214	mmc_data->flags \|= of_data->tmio_flags;
	215	}
	216
3b159a6e KM	217	/* SD control register space size is 0x100, 0x200 for bus_shift=1 */
	218	mmc_data->bus_shift = resource_size(res) >> 9;
	219
42051e8a GL	220	ret = tmio_mmc_host_probe(&host, pdev, mmc_data);
	221	if (ret < 0)
	222	goto eprobe;
a87d5638	223
e3c418f1 KM	224	/*
	225	* FIXME:
	226	* this Workaround can be more clever method
	227	*/
	228	ver = sd_ctrl_read16(host, CTL_VERSION);
	229	if (ver == 0xCB0D)
	230	sd_ctrl_write16(host, EXT_ACC, 1);
	231
d5098cb6 SH	232	/*
	233	* Allow one or more specific (named) ISRs or
	234	* one or more multiplexed (un-named) ISRs.
	235	*/
	236
	237	irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_CARD_DETECT);
	238	if (irq >= 0) {
	239	multiplexed_isr = false;
ac51b961	240	ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_card_detect_irq, 0,
d5098cb6 SH	241	dev_name(&pdev->dev), host);
d5098cb6 SH	242	if (ret)
ac51b961	243	goto eirq;
d5098cb6 SH	244	}
	245
	246	irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_SDIO);
	247	if (irq >= 0) {
	248	multiplexed_isr = false;
ac51b961	249	ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_sdio_irq, 0,
d5098cb6 SH	250	dev_name(&pdev->dev), host);
d5098cb6 SH	251	if (ret)
ac51b961	252	goto eirq;
d5098cb6 SH	253	}
	254
	255	irq = platform_get_irq_byname(pdev, SH_MOBILE_SDHI_IRQ_SDCARD);
	256	if (irq >= 0) {
	257	multiplexed_isr = false;
ac51b961	258	ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_sdcard_irq, 0,
d6a1f863	259	dev_name(&pdev->dev), host);
d5098cb6	260	if (ret)
ac51b961	261	goto eirq;
d5098cb6 SH	262	} else if (!multiplexed_isr) {
	263	dev_err(&pdev->dev,
	264	"Principal SD-card IRQ is missing among named interrupts\n");
	265	ret = irq;
ac51b961	266	goto eirq;
d5098cb6 SH	267	}
	268
	269	if (multiplexed_isr) {
	270	while (1) {
	271	irq = platform_get_irq(pdev, i);
	272	if (irq < 0)
	273	break;
	274	i++;
ac51b961	275	ret = devm_request_irq(&pdev->dev, irq, tmio_mmc_irq, 0,
d5098cb6 SH	276	dev_name(&pdev->dev), host);
d5098cb6 SH	277	if (ret)
ac51b961	278	goto eirq;
d6a1f863	279	}
d5098cb6 SH	280
d5098cb6 SH	281	/* There must be at least one IRQ source */
7913ae7d WY	282	if (!i) {
7913ae7d WY	283	ret = irq;
ac51b961	284	goto eirq;
7913ae7d	285	}
8e7bfdb3	286	}
d5098cb6	287
1f7d6819 MD	288	dev_info(&pdev->dev, "%s base at 0x%08lx clock rate %u MHz\n",
1f7d6819 MD	289	mmc_hostname(host->mmc), (unsigned long)
58126c87	290	(platform_get_resource(pdev, IORESOURCE_MEM, 0)->start),
369213bd	291	host->mmc->f_max / 1000000);
a87d5638	292
42051e8a	293	return ret;
a87d5638	294
ac51b961	295	eirq:
8e7bfdb3	296	tmio_mmc_host_remove(host);
42051e8a	297	eprobe:
42051e8a	298	eclkget:
c7bb4487	299	if (p && p->cleanup)
e82b4ac9	300	p->cleanup(pdev);
a87d5638 MD	301	return ret;
	302	}
	303
	304	static int sh_mobile_sdhi_remove(struct platform_device *pdev)
	305	{
42051e8a GL	306	struct mmc_host *mmc = platform_get_drvdata(pdev);
42051e8a GL	307	struct tmio_mmc_host *host = mmc_priv(mmc);
25958804	308	struct sh_mobile_sdhi_info *p = pdev->dev.platform_data;
d6a1f863	309
742a0c7c GL	310	tmio_mmc_host_remove(host);
742a0c7c GL	311
c7bb4487	312	if (p && p->cleanup)
e82b4ac9 BH	313	p->cleanup(pdev);
e82b4ac9 BH	314
a87d5638 MD	315	return 0;
	316	}
	317
e6ee7182 GL	318	static const struct dev_pm_ops tmio_mmc_dev_pm_ops = {
	319	.suspend = tmio_mmc_host_suspend,
	320	.resume = tmio_mmc_host_resume,
25958804 GL	321	.runtime_suspend = tmio_mmc_host_runtime_suspend,
25958804 GL	322	.runtime_resume = tmio_mmc_host_runtime_resume,
e6ee7182 GL	323	};
e6ee7182 GL	324
a87d5638 MD	325	static struct platform_driver sh_mobile_sdhi_driver = {
	326	.driver = {
	327	.name = "sh_mobile_sdhi",
	328	.owner = THIS_MODULE,
e6ee7182	329	.pm = &tmio_mmc_dev_pm_ops,
c7bb4487	330	.of_match_table = sh_mobile_sdhi_of_match,
a87d5638 MD	331	},
a87d5638 MD	332	.probe = sh_mobile_sdhi_probe,
0433c143	333	.remove = sh_mobile_sdhi_remove,
a87d5638 MD	334	};
a87d5638 MD	335
d1f81a64	336	module_platform_driver(sh_mobile_sdhi_driver);
a87d5638 MD	337
	338	MODULE_DESCRIPTION("SuperH Mobile SDHI driver");
	339	MODULE_AUTHOR("Magnus Damm");
	340	MODULE_LICENSE("GPL v2");
42051e8a	341	MODULE_ALIAS("platform:sh_mobile_sdhi");