From: Sriram Dash <sriram.dash@freescale.com>
To: <linux-kernel@vger.kernel.org>, <linux-usb@vger.kernel.org>
Cc: <stern@rowland.harvard.edu>, <gregkh@linuxfoundation.org>,
<ramneek.mehresh@freescale.com>, <rajesh.bhagat@freescale.com>,
Sriram Dash <sriram.dash@freescale.com>
Subject: [PATCH] drivers/usb : Set DMA_MASK of usb platform device
Date: Thu, 17 Dec 2015 17:02:35 +0530 [thread overview]
Message-ID: <1450351955-32758-1-git-send-email-sriram.dash@freescale.com> (raw)
Set DMA_MASK of usb platform device properly.
Signed-off-by: Sriram Dash <sriram.dash@freescale.com>
Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
---
drivers/usb/host/fsl-mph-dr-of.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c
index 0c38265..1044b0f 100644
--- a/drivers/usb/host/fsl-mph-dr-of.c
+++ b/drivers/usb/host/fsl-mph-dr-of.c
@@ -17,6 +17,7 @@
#include <linux/of_platform.h>
#include <linux/clk.h>
#include <linux/module.h>
+#include <linux/dma-mapping.h>
struct fsl_usb2_dev_data {
char *dr_mode; /* controller mode */
@@ -96,7 +97,11 @@ static struct platform_device *fsl_usb2_device_register(
pdev->dev.parent = &ofdev->dev;
pdev->dev.coherent_dma_mask = ofdev->dev.coherent_dma_mask;
- *pdev->dev.dma_mask = *ofdev->dev.dma_mask;
+
+ if (!pdev->dev.dma_mask)
+ pdev->dev.dma_mask = &ofdev->dev.coherent_dma_mask;
+ else
+ dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
retval = platform_device_add_data(pdev, pdata, sizeof(*pdata));
if (retval)
--
2.1.0
reply other threads:[~2015-12-17 11:32 UTC|newest]
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