From: Robby Cai Date: Thu, 6 Dec 2012 10:15:27 +0000 (+0800) Subject: ENGR00236137 mx6sl: csi: Change video buffer access mode to writecombine X-Git-Tag: v3.0.35-fsl~191 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ab6df9de6ce63bb0086e1533bd9483f92c096b14;p=karo-tx-linux.git ENGR00236137 mx6sl: csi: Change video buffer access mode to writecombine Change buffer access mode from noncached to writecombine for better performance. Signed-off-by: Robby Cai --- diff --git a/drivers/media/video/mxc/capture/csi_v4l2_capture.c b/drivers/media/video/mxc/capture/csi_v4l2_capture.c index 6cf06c47f996..74266b0367a8 100644 --- a/drivers/media/video/mxc/capture/csi_v4l2_capture.c +++ b/drivers/media/video/mxc/capture/csi_v4l2_capture.c @@ -1428,7 +1428,7 @@ static int csi_mmap(struct file *file, struct vm_area_struct *vma) return -EINTR; size = vma->vm_end - vma->vm_start; - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); if (remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, size, vma->vm_page_prot)) {