recipes-kernel/linux/linux-ti33x-psp-3.2/3.2.10/0023-ARM-S3C24XX-DMA-resume-regression-fix.patch

   1 From 22f75673eb447eb62c1890393fe82728d86aad06 Mon Sep 17 00:00:00 2001
   2 From: Gusakov Andrey <dron0gus@gmail.com>
   3 Date: Sat, 3 Mar 2012 07:32:36 +0900
   4 Subject: [PATCH 23/95] ARM: S3C24XX: DMA resume regression fix
   5
   6 commit e39d40c65dfd8390b50c03482ae9e289b8a8f351 upstream.
   7
   8 s3c2410_dma_suspend suspends channels from 0 to dma_channels.
   9 s3c2410_dma_resume resumes channels in reverse order. So
  10 pointer should be decremented instead of being incremented.
  11
  12 Signed-off-by: Gusakov Andrey <dron0gus@gmail.com>
  13 Reviewed-by: Heiko Stuebner <heiko@sntech.de>
  14 Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
  15 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  16 ---
  17  arch/arm/plat-s3c24xx/dma.c |    2 +-
  18  1 file changed, 1 insertion(+), 1 deletion(-)
  19
  20 diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c
  21 index 53754bc..8a90b6a 100644
  22 --- a/arch/arm/plat-s3c24xx/dma.c
  23 +++ b/arch/arm/plat-s3c24xx/dma.c
  24 @@ -1249,7 +1249,7 @@ static void s3c2410_dma_resume(void)
  25         struct s3c2410_dma_chan *cp = s3c2410_chans + dma_channels - 1;
  26         int channel;
  27
  28 -       for (channel = dma_channels - 1; channel >= 0; cp++, channel--)
  29 +       for (channel = dma_channels - 1; channel >= 0; cp--, channel--)
  30                 s3c2410_dma_resume_chan(cp);
  31  }
  32
  33 --
  34 1.7.9.4
  35