This is a note to let you know that I've just added the patch titled
dmaengine: mmp-pdma: add number of requestors
to the 4.4-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-mmp-pdma-add-number-of-requestors.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From c283e41ef32442f41e7180f9bb1c5aedf9255bfe Mon Sep 17 00:00:00 2001
From: Robert Jarzmik <robert.jarzmik@xxxxxxx>
Date: Mon, 15 Feb 2016 21:57:46 +0100
Subject: dmaengine: mmp-pdma: add number of requestors
From: Robert Jarzmik <robert.jarzmik@xxxxxxx>
commit c283e41ef32442f41e7180f9bb1c5aedf9255bfe upstream.
The DMA chip has a fixed number of requestor lines used for flow
control. This number is platform dependent. The pxa_dma dma driver will
use this value to activate or not the flow control.
There won't be any impact on mmp_pdma driver.
Signed-off-by: Robert Jarzmik <robert.jarzmik@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
include/linux/platform_data/mmp_dma.h | 1 +
1 file changed, 1 insertion(+)
--- a/include/linux/platform_data/mmp_dma.h
+++ b/include/linux/platform_data/mmp_dma.h
@@ -14,6 +14,7 @@
struct mmp_dma_platdata {
int dma_channels;
+ int nb_requestors;
};
#endif /* MMP_DMA_H */
Patches currently in stable-queue which might be from robert.jarzmik@xxxxxxx are
queue-4.4/arm-pxa-fix-the-number-of-dma-requestor-lines.patch
queue-4.4/arm-pxa-add-the-number-of-dma-requestor-lines.patch
queue-4.4/dmaengine-mmp-pdma-add-number-of-requestors.patch