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Message-Id: <E1V50un-0006ry-AB@rmk-PC.arm.linux.org.uk> Date: Thu, 01 Aug 2013 23:00:09 +0100 From: Russell King <rmk+kernel@....linux.org.uk> To: linux-arm-kernel@...ts.infradead.org Cc: linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de> Subject: [PATCH RFC 26/51] DMA-API: usb: ohci-sa1111: add a note about DMA masks Add a comment to explain why this driver doesn't call any of the DMA API dma_set_mask() functions. Signed-off-by: Russell King <rmk+kernel@....linux.org.uk> --- drivers/usb/host/ohci-sa1111.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c index 17b2a7d..aa9e127 100644 --- a/drivers/usb/host/ohci-sa1111.c +++ b/drivers/usb/host/ohci-sa1111.c @@ -185,6 +185,12 @@ static int ohci_hcd_sa1111_probe(struct sa1111_dev *dev) if (usb_disabled()) return -ENODEV; + /* + * We don't call dma_set_mask_and_coherent() here because the + * DMA mask has already been appropraitely setup by the core + * SA-1111 bus code (which includes bug workarounds.) + */ + hcd = usb_create_hcd(&ohci_sa1111_hc_driver, &dev->dev, "sa1111"); if (!hcd) return -ENOMEM; -- 1.7.4.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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