[Patch v5 06/13] usb: chipidea: add imx platform driver

Dear Sascha Hauer,

On Wed, Jun 13, 2012 at 08:34:16PM +0800, Richard Zhao wrote:

quoted

This patch supports only the host-mode functionality so far.

Signed-off-by: Richard Zhao <redacted>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Peter Chen <redacted>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Felipe Balbi <redacted>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

 .../devicetree/bindings/usb/ci13xxx-imx.txt        |   20 +++
 drivers/usb/chipidea/Makefile                      |    3 +
 drivers/usb/chipidea/ci13xxx_imx.c                 |  189
 ++++++++++++++++++++ 3 files changed, 212 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/ci13xxx-imx.txt
 create mode 100644 drivers/usb/chipidea/ci13xxx_imx.c

[...]

quoted

+
+	ci13xxx_imx_platdata.phy = data->phy;
+
+	if (!pdev->dev.dma_mask) {
+		pdev->dev.dma_mask = devm_kzalloc(&pdev->dev,
+				      sizeof(*pdev->dev.dma_mask), GFP_KERNEL);
+		if (!pdev->dev.dma_mask) {
+			ret = -ENOMEM;
+			dev_err(&pdev->dev, "Failed to alloc dma_mask!\n");
+			goto err;
+		}
+		*pdev->dev.dma_mask = DMA_BIT_MASK(32);
+		dma_set_coherent_mask(&pdev->dev, *pdev->dev.dma_mask);
+	}

Do you need this? I assume not.

Ain't this the dma mask crap without which the usb stuff won't work?

Sascha

Best regards,
Marek Vasut