usb: musb: ux500: take the dma_mask from coherent_dma_mask

The dma_mask will always be the same as the coherent_dma_mask, so let's
cut down on the platform_data burden and set it as such in the driver.
This also saves us from supporting it separately when we come to enable
this driver for Device Tree.

Cc: linux-usb@vger.kernel.org
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Fabio Baltieri <fabio.baltieri@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

2 files changed, 1 insertions, 4 deletions

diff --git a/arch/arm/mach-ux500/usb.c b/arch/arm/mach-ux500/usb.c
index 49d6e571f5af..2f9abe99dfaa 100644
--- a/arch/arm/mach-ux500/usb.c
+++ b/arch/arm/mach-ux500/usb.c
@@ -74,8 +74,6 @@ static struct ux500_musb_board_data musb_board_data = {
         .dma_filter = stedma40_filter,
 };
 
-static u64 ux500_musb_dmamask = DMA_BIT_MASK(32);
-
 static struct musb_hdrc_platform_data musb_platform_data = {
         .mode = MUSB_OTG,
         .board_data = &musb_board_data,
@@ -98,7 +96,6 @@ struct platform_device ux500_musb_device = {
         .id = 0,
         .dev = {
                 .platform_data = &musb_platform_data,
-                .dma_mask = &ux500_musb_dmamask,
                 .coherent_dma_mask = DMA_BIT_MASK(32),
         },
         .num_resources = ARRAY_SIZE(usb_resources),
diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index 371776f76ba2..3cf10bcaf118 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -228,7 +228,7 @@ static int ux500_probe(struct platform_device *pdev)
         }
 
         musb->dev.parent                = &pdev->dev;
-        musb->dev.dma_mask              = pdev->dev.dma_mask;
+        musb->dev.dma_mask              = &pdev->dev.coherent_dma_mask;
         musb->dev.coherent_dma_mask     = pdev->dev.coherent_dma_mask;
 
         glue->dev                       = &pdev->dev;