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authorVivek Gautam <gautam.vivek@samsung.com>2012-11-03 18:00:27 +0530
committerFelipe Balbi <balbi@ti.com>2012-11-06 13:44:15 +0200
commitaccefdd4b234f029a530928ee930b9dcac88fe84 (patch)
treebde0b8305905a3a99338b94f796f7ac8519a45b7 /drivers/usb/dwc3
parent124dafde8f8174caf5cef1c3eaba001657d66f4f (diff)
usb: dwc3: exynos: add support for device tree
This patch adds support to parse probe data for dwc3-exynos driver using device tree. Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3')
-rw-r--r--drivers/usb/dwc3/dwc3-exynos.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index 586f1051b05..6471d786b3c 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -21,6 +21,7 @@
#include <linux/clk.h>
#include <linux/usb/otg.h>
#include <linux/usb/nop-usb-xceiv.h>
+#include <linux/of.h>
#include "core.h"
@@ -87,6 +88,8 @@ err1:
return ret;
}
+static u64 dwc3_exynos_dma_mask = DMA_BIT_MASK(32);
+
static int __devinit dwc3_exynos_probe(struct platform_device *pdev)
{
struct dwc3_exynos_data *pdata = pdev->dev.platform_data;
@@ -102,6 +105,14 @@ static int __devinit dwc3_exynos_probe(struct platform_device *pdev)
goto err0;
}
+ /*
+ * Right now device-tree probed devices don't get dma_mask set.
+ * Since shared usb code relies on it, set it here for now.
+ * Once we move to full device tree support this will vanish off.
+ */
+ if (!pdev->dev.dma_mask)
+ pdev->dev.dma_mask = &dwc3_exynos_dma_mask;
+
platform_set_drvdata(pdev, exynos);
ret = dwc3_exynos_register_phys(exynos);
@@ -191,11 +202,20 @@ static int __devexit dwc3_exynos_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id exynos_dwc3_match[] = {
+ { .compatible = "samsung,exynos-dwc3" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, exynos_dwc3_match);
+#endif
+
static struct platform_driver dwc3_exynos_driver = {
.probe = dwc3_exynos_probe,
.remove = __devexit_p(dwc3_exynos_remove),
.driver = {
.name = "exynos-dwc3",
+ .of_match_table = of_match_ptr(exynos_dwc3_match),
},
};