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

   1 From 07947cfde701f7ba29b06574e9533bd6459da8ad 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 011/196] 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 diff --git a/drivers/mmc/host/sdhci-bcm2708.c b/drivers/mmc/host/sdhci-bcm2708.c
  13 index ae8edf7..a6bdc25 100644
  14 --- a/drivers/mmc/host/sdhci-bcm2708.c
  15 +++ b/drivers/mmc/host/sdhci-bcm2708.c
  16 @@ -897,7 +897,7 @@ static void sdhci_bcm2708_dma_complete_irq(struct sdhci_host *host,
  17                 while (0 != (sdhci_bcm2708_raw_readl(host, SDHCI_PRESENT_STATE)
  18                         & state_mask) && --timeout > 0)
  19                 {
  20 -                       udelay(100);
  21 +                       udelay(30);
  22                         continue;
  23                 }
  24                 if (timeout <= 0)
  25 --
  26 1.9.1
  27