openwrt/target/linux/ipq806x/patches-3.18/151-dmaengine-Remove-the-need-to-declare-device_control.patch
John Crispin 21802f22f0 ipq806x: fix 3.18 support
accidentially removed the files in the v4.4 commit

Signed-off-by: John Crispin <john@phrozen.org>
2016-05-27 22:28:15 +02:00

28 lines
1.1 KiB
Diff

From 4f8ef9f4140cc286d7d1cf9237da7a7439e4fc0b Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Mon, 17 Nov 2014 14:42:03 +0100
Subject: [PATCH] dmaengine: Remove the need to declare device_control
In order to migrate the drivers without triggering a BUG_ON for the converted
drivers, which would cause bisectability issues, we need to remove that check
before removing the device_control function entirely.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
drivers/dma/dmaengine.c | 2 --
1 file changed, 2 deletions(-)
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -814,8 +814,6 @@ int dma_async_device_register(struct dma
!device->device_prep_dma_sg);
BUG_ON(dma_has_cap(DMA_CYCLIC, device->cap_mask) &&
!device->device_prep_dma_cyclic);
- BUG_ON(dma_has_cap(DMA_SLAVE, device->cap_mask) &&
- !device->device_control);
BUG_ON(dma_has_cap(DMA_INTERLEAVE, device->cap_mask) &&
!device->device_prep_interleaved_dma);