Hi,
On Saturday 13 October 2012 07:17 PM, Vivek Gautam wrote:
This patch adds support to parse probe data for
dwc3 driver for exynos using device tree
Signed-off-by: Vivek Gautam <gautam.vivek@xxxxxxxxxxx>
---
drivers/usb/dwc3/dwc3-exynos.c | 22 ++++++++++++++++++++++
1 files changed, 22 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index ca65978..78e6219 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;
@@ -103,6 +106,16 @@ 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;
+ if (!pdev->dev.coherent_dma_mask)
+ pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
of/platform.c shows coherent_dma_mask is set for dt.
Thanks
Kishon
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