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usb: host: xhci-plat: use ioremap_nocache 

Use the ioremap_nocache variant of the ioremap API in
order to make sure our memory will be marked uncachable.

This patch should be backported to kernels as old as 3.4, that contain
the commit 3429e91a66 "usb: host: xhci:
add platform driver support".

Signed-off-by: Ruchika Kharwar <ruchika@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Ruchika Kharwar 2012-08-10 09:58:30 +03:00 committed by Sarah Sharp
parent 71c731a296
commit 319acdfc06
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/host/xhci-plat.c
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@ -118,7 +118,7 @@ static int xhci_plat_probe(struct platform_device *pdev)
goto put_hcd;
}
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs) {
dev_dbg(&pdev->dev, "error mapping memory\n");
ret = -EFAULT;