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@xxxxxx>
---
v4: add compatible string parsing to sh_mobile_sdhi, remove
"toshiba,mmc-blksz-2bytes" and "toshiba,mmc-has-idle-wait" properties.
drivers/mmc/host/sh_mobile_sdhi.c | 32 ++++++++++++++++++++++++++------
drivers/mmc/host/tmio_mmc_pio.c | 20 ++++++++++++++++++--
2 files changed, 44 insertions(+), 8 deletions(-)
diff --git a/drivers/mmc/host/sh_mobile_sdhi.c b/drivers/mmc/host/sh_mobile_sdhi.c
index e0ca0ab..06e1bc9 100644
--- a/drivers/mmc/host/sh_mobile_sdhi.c
+++ b/drivers/mmc/host/sh_mobile_sdhi.c
@@ -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",
diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index b25adb4..e5b3fcf 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -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);
--
1.7.2.5
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