target/linux/brcm2708/patches-3.10/0011-sdhci-bcm2708-speed-up-DMA-sync.patch

   1 From e38d3d05747f6877a2ad1a7af1ac26e6a48a8be3 Mon Sep 17 00:00:00 2001
   2 From: Grigori Goronzy <greg@blackbox>
   3 Date: Mon, 4 Jun 2012 04:27:48 +0200
   4 Subject: [PATCH 011/174] sdhci-bcm2708: speed up DMA sync
   5
   6 Experiments show that it doesn't really take that long to sync, so we
   7 can reduce the poll interval slightly. Might improve performance a bit.
   8 ---
   9  drivers/mmc/host/sdhci-bcm2708.c | 2 +-
  10  1 file changed, 1 insertion(+), 1 deletion(-)
  11
  12 --- a/drivers/mmc/host/sdhci-bcm2708.c
  13 +++ b/drivers/mmc/host/sdhci-bcm2708.c
  14 @@ -897,7 +897,7 @@ static void sdhci_bcm2708_dma_complete_i
  15                 while (0 != (sdhci_bcm2708_raw_readl(host, SDHCI_PRESENT_STATE)
  16                         & state_mask) && --timeout > 0)
  17                 {
  18 -                       udelay(100);
  19 +                       udelay(30);
  20                         continue;
  21                 }
  22                 if (timeout <= 0)