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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: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Guennadi Liakhovetski 2013-02-15 16:13:56 +01:00 committed by Chris Ball
parent d804820fa3
commit 5a00a971a2
2 changed files with 44 additions and 8 deletions
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32
drivers/mmc/host/sh_mobile_sdhi.c
View File

@ -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",

20
drivers/mmc/host/tmio_mmc_pio.c
View File

@ -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);