target/linux/brcm2708/patches-4.4/0023-bcm2835-dma-Fix-dreq-not-set-for-slave-transfers.patch

   1 From 93e23eca701dfbf20def2a598af43d64c39bd9b8 Mon Sep 17 00:00:00 2001
   2 From: Matthias Reichl <hias@horus.com>
   3 Date: Sat, 10 Oct 2015 12:29:18 +0200
   4 Subject: [PATCH] bcm2835-dma: Fix dreq not set for slave transfers
   5
   6 Set dreq to slave_id if it is not set like in bcm2708-dmaengine.
   7 ---
   8  drivers/dma/bcm2835-dma.c | 2 ++
   9  1 file changed, 2 insertions(+)
  10
  11 --- a/drivers/dma/bcm2835-dma.c
  12 +++ b/drivers/dma/bcm2835-dma.c
  13 @@ -657,6 +657,8 @@ static int bcm2835_dma_slave_config(stru
  14         }
  15
  16         c->cfg = *cfg;
  17 +       if (!c->dreq)
  18 +               c->dreq = cfg->slave_id;
  19
  20         return 0;
  21  }