target/linux/layerscape/patches-5.4/701-net-0146-bus-fsl-mc-DMA-configure-to-have-force-dma-as-defaul.patch

   1 From b6b91c9f49f8459eab973aa3b52b4e8a3a00daa1 Mon Sep 17 00:00:00 2001
   2 From: Bharat Bhushan <Bharat.Bhushan@nxp.com>
   3 Date: Mon, 27 Aug 2018 13:22:34 +0530
   4 Subject: [PATCH] bus: fsl-mc: DMA configure to have force-dma as default
   5
   6 Implicit dma setting from bus works when dma-ranges
   7 specified but not otherwise. We need to continue
   8 to go for force_dma as default for cases dma-ranges not
   9 specified. Example dynamic device tree generation for
  10 generic kvm virtual machines.
  11
  12 Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
  13 ---
  14  drivers/bus/fsl-mc/fsl-mc-bus.c | 2 +-
  15  1 file changed, 1 insertion(+), 1 deletion(-)
  16
  17 --- a/drivers/bus/fsl-mc/fsl-mc-bus.c
  18 +++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
  19 @@ -140,7 +140,7 @@ static int fsl_mc_dma_configure(struct d
  20         while (dev_is_fsl_mc(dma_dev))
  21                 dma_dev = dma_dev->parent;
  22
  23 -       return of_dma_configure(dev, dma_dev->of_node, 0);
  24 +       return of_dma_configure(dev, dma_dev->of_node, 1);
  25  }
  26
  27  static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,