openwrtv4/target/linux/brcm2708/patches-4.4/0023-bcm2835-dma-Fix-dreq-not-set-for-slave-transfers.patch
Felix Fietkau 4224b52c3a brcm2708: add linux 4.4 support
- random-bcm2708 and spi-bcm2708 have been removed.
- sound-soc-bcm2708-i2s has been upstreamed as sound-soc-bcm2835-i2s.

Let's keep linux 4.1 for a while, since linux 4.4 appears to have some issues
with multicast traffic on RPi ethernet:
https://gist.github.com/Noltari/5b1cfdecce5ed4bc08fd

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

SVN-Revision: 48266
2016-01-17 10:42:23 +00:00

21 lines
570 B
Diff

From 50eef5c715b894683aebf81332c82426dc10f8cb Mon Sep 17 00:00:00 2001
From: Matthias Reichl <hias@horus.com>
Date: Sat, 10 Oct 2015 12:29:18 +0200
Subject: [PATCH 023/127] bcm2835-dma: Fix dreq not set for slave transfers
Set dreq to slave_id if it is not set like in bcm2708-dmaengine.
---
drivers/dma/bcm2835-dma.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/dma/bcm2835-dma.c
+++ b/drivers/dma/bcm2835-dma.c
@@ -657,6 +657,8 @@ static int bcm2835_dma_slave_config(stru
}
c->cfg = *cfg;
+ if (!c->dreq)
+ c->dreq = cfg->slave_id;
return 0;
}