From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Mon, 15 Feb 2016 20:57:46 +0000 (+0100)
Subject: dmaengine: mmp-pdma: add number of requestors
X-Git-Tag: v4.4.90~7
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a85f176c857e4fe0d2c0b5d2c7090c422982e585;p=thirdparty%2Fkernel%2Fstable.git

dmaengine: mmp-pdma: add number of requestors

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@free.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/include/linux/platform_data/mmp_dma.h b/include/linux/platform_data/mmp_dma.h
index 2a330ec9e2af0..d1397c8ed94ee 100644
--- 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 */