Commit 5a00a971 authored by Guennadi Liakhovetski's avatar Guennadi Liakhovetski Committed by Chris Ball
Browse files

mmc: tmio-mmc: parse device-tree bindings



Add parsing of common and driver-specific DT bindings to the tmio-mmc
MMC host driver and the sh_mobile_sdhi interface layer.

Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: default avatarChris Ball <cjb@laptop.org>
parent d804820f
Loading
Loading
Loading
Loading
+26 −6
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@
#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>
@@ -32,6 +33,16 @@

#include "tmio_mmc.h"

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;
@@ -117,8 +128,18 @@ 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,shmobile-sdhi" },
	{ .compatible = "renesas,sh7372-sdhi" },
	{ .compatible = "renesas,r8a7740-sdhi", .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;
@@ -186,6 +207,11 @@ static int sh_mobile_sdhi_probe(struct platform_device *pdev)
	 */
	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;
	}

	ret = tmio_mmc_host_probe(&host, pdev, mmc_data);
	if (ret < 0)
		goto eprobe;
@@ -313,12 +339,6 @@ static const struct dev_pm_ops tmio_mmc_dev_pm_ops = {
	.runtime_resume = tmio_mmc_host_runtime_resume,
};

static const struct of_device_id sh_mobile_sdhi_of_match[] = {
	{ .compatible = "renesas,shmobile-sdhi" },
	{ }
};
MODULE_DEVICE_TABLE(of, sh_mobile_sdhi_of_match);

static struct platform_driver sh_mobile_sdhi_driver = {
	.driver		= {
		.name	= "sh_mobile_sdhi",
+18 −2
Original line number Diff line number Diff line
@@ -918,6 +918,17 @@ static void tmio_mmc_init_ocr(struct tmio_mmc_host *host)
		dev_warn(mmc_dev(mmc), "Platform OCR mask is ignored\n");
}

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;
}

int tmio_mmc_host_probe(struct tmio_mmc_host **host,
				  struct platform_device *pdev,
				  struct tmio_mmc_data *pdata)
@@ -928,6 +939,8 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host,
	int ret;
	u32 irq_mask = TMIO_MASK_CMD;

	tmio_mmc_of_parse(pdev, pdata);

	if (!(pdata->flags & TMIO_MMC_HAS_IDLE_WAIT))
		pdata->write16_hook = NULL;

@@ -939,6 +952,8 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host,
	if (!mmc)
		return -ENOMEM;

	mmc_of_parse(mmc);

	pdata->dev = &pdev->dev;
	_host = mmc_priv(mmc);
	_host->pdata = pdata;
@@ -959,7 +974,7 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host,
	}

	mmc->ops = &tmio_mmc_ops;
	mmc->caps = MMC_CAP_4_BIT_DATA | pdata->capabilities;
	mmc->caps |= MMC_CAP_4_BIT_DATA | pdata->capabilities;
	mmc->caps2 = pdata->capabilities2;
	mmc->max_segs = 32;
	mmc->max_blk_size = 512;
@@ -971,7 +986,8 @@ int tmio_mmc_host_probe(struct tmio_mmc_host **host,

	_host->native_hotplug = !(pdata->flags & TMIO_MMC_USE_GPIO_CD ||
				  mmc->caps & MMC_CAP_NEEDS_POLL ||
				  mmc->caps & MMC_CAP_NONREMOVABLE);
				  mmc->caps & MMC_CAP_NONREMOVABLE ||
				  mmc->slot.cd_irq >= 0);

	_host->power = false;
	pm_runtime_enable(&pdev->dev);