This is a note to let you know that I've just added the patch titled
dmaengine: mv_xor_v2: set DMA mask to 40 bits
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
dmaengine-mv_xor_v2-set-dma-mask-to-40-bits.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b2d3c270f9f2fb82518ac500a9849c3aaf503852 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
Date: Fri, 5 May 2017 11:57:50 +0200
Subject: dmaengine: mv_xor_v2: set DMA mask to 40 bits
From: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
commit b2d3c270f9f2fb82518ac500a9849c3aaf503852 upstream.
The XORv2 engine on Armada 7K/8K can only access the first 40 bits of
the physical address space, so the DMA mask must be set accordingly.
Fixes: 19a340b1a820 ("dmaengine: mv_xor_v2: new driver")
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Vinod Koul <vinod.koul@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/dma/mv_xor_v2.c | 4 ++++
1 file changed, 4 insertions(+)
--- a/drivers/dma/mv_xor_v2.c
+++ b/drivers/dma/mv_xor_v2.c
@@ -693,6 +693,10 @@ static int mv_xor_v2_probe(struct platfo
platform_set_drvdata(pdev, xor_dev);
+ ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(40));
+ if (ret)
+ return ret;
+
xor_dev->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(xor_dev->clk) && PTR_ERR(xor_dev->clk) == -EPROBE_DEFER)
return -EPROBE_DEFER;
Patches currently in stable-queue which might be from thomas.petazzoni@xxxxxxxxxxxxxxxxxx are
queue-4.9/dmaengine-mv_xor_v2-properly-handle-wrapping-in-the-array-of-hw-descriptors.patch
queue-4.9/dmaengine-mv_xor_v2-enable-xor-engine-after-its-configuration.patch
queue-4.9/dmaengine-mv_xor_v2-set-dma-mask-to-40-bits.patch
queue-4.9/dmaengine-mv_xor_v2-do-not-use-descriptors-not-acked-by-async_tx.patch
queue-4.9/dmaengine-mv_xor_v2-handle-mv_xor_v2_prep_sw_desc-error-properly.patch
queue-4.9/dmaengine-mv_xor_v2-remove-interrupt-coalescing.patch
queue-4.9/dmaengine-mv_xor_v2-fix-tx_submit-implementation.patch