From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 13 Jan 2017 15:02:09 +0000 (+0100)
Subject: dmaengine: ste_dma40: indicate granularity on channels
X-Git-Tag: v4.11-rc1~131^2~2^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=15c606686541d49cc38465a3cfe25c23bff4395b;p=platform%2Fkernel%2Flinux-exynos.git

dmaengine: ste_dma40: indicate granularity on channels

The ste_dma40 has burst level granularity on the residue
registers, which is necessary for some  clients to know,
notably the UART. Before this patch we get this message:

uart-pl011 80007000.uart: RX DMA disabled - no residue processing

This patch fixes it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 2f0852d..a6620b6 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -2838,6 +2838,7 @@ static void d40_ops_init(struct d40_base *base, struct dma_device *dev)
 	dev->device_pause = d40_pause;
 	dev->device_resume = d40_resume;
 	dev->device_terminate_all = d40_terminate_all;
+	dev->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
 	dev->dev = base->dev;
 }