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authorDaniel Mack <zonque@gmail.com>2012-07-28 12:07:34 +0200
committerChris Ball <cjb@laptop.org>2012-09-04 13:58:12 -0400
commite6027b467cd5b117b9ae2957c197a7cda9f5b932 (patch)
tree5677a2a81a71a700e360f1105aeb6e67ad58540d /drivers/mmc/host/pxamci.c
parent75b53aee2f4fe6375c6007226bf68d75b5c4a929 (diff)
mmc: pxa-mci: add DT bindings
Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/pxamci.c')
-rw-r--r--drivers/mmc/host/pxamci.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index cb2dc0e75ba7..11df8006d47e 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -30,6 +30,9 @@
#include <linux/regulator/consumer.h>
#include <linux/gpio.h>
#include <linux/gfp.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/of_device.h>
#include <asm/sizes.h>
@@ -573,6 +576,50 @@ static irqreturn_t pxamci_detect_irq(int irq, void *devid)
return IRQ_HANDLED;
}
+#ifdef CONFIG_OF
+static const struct of_device_id pxa_mmc_dt_ids[] = {
+ { .compatible = "marvell,pxa-mmc" },
+ { }
+};
+
+MODULE_DEVICE_TABLE(of, pxa_mmc_dt_ids);
+
+static int __devinit pxamci_of_init(struct platform_device *pdev)
+{
+ struct device_node *np = pdev->dev.of_node;
+ struct pxamci_platform_data *pdata;
+ u32 tmp;
+
+ if (!np)
+ return 0;
+
+ pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return -ENOMEM;
+
+ pdata->gpio_card_detect =
+ of_get_named_gpio(np, "cd-gpios", 0);
+ pdata->gpio_card_ro =
+ of_get_named_gpio(np, "wp-gpios", 0);
+
+ /* pxa-mmc specific */
+ pdata->gpio_power =
+ of_get_named_gpio(np, "pxa-mmc,gpio-power", 0);
+
+ if (of_property_read_u32(np, "pxa-mmc,detect-delay-ms", &tmp) == 0)
+ pdata->detect_delay_ms = tmp;
+
+ pdev->dev.platform_data = pdata;
+
+ return 0;
+}
+#else
+static int __devinit pxamci_of_init(struct platform_device *pdev)
+{
+ return 0;
+}
+#endif
+
static int pxamci_probe(struct platform_device *pdev)
{
struct mmc_host *mmc;
@@ -580,6 +627,10 @@ static int pxamci_probe(struct platform_device *pdev)
struct resource *r, *dmarx, *dmatx;
int ret, irq, gpio_cd = -1, gpio_ro = -1, gpio_power = -1;
+ ret = pxamci_of_init(pdev);
+ if (ret)
+ return ret;
+
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
irq = platform_get_irq(pdev, 0);
if (!r || irq < 0)
@@ -866,6 +917,7 @@ static struct platform_driver pxamci_driver = {
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(pxa_mmc_dt_ids),
#ifdef CONFIG_PM
.pm = &pxamci_pm_ops,
#endif