From: Robert Jarzmik <robert.jarzmik@free.fr>
To: Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Kumar Gala <galak@codeaurora.org>,
Daniel Mack <daniel@zonque.org>,
Haojian Zhuang <haojian.zhuang@gmail.com>,
Robert Jarzmik <robert.jarzmik@free.fr>,
Vinod Koul <vinod.koul@intel.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org
Subject: [PATCH v2 2/4] dmaengine: mmp-pdma: add number of requestors
Date: Mon, 15 Feb 2016 21:57:46 +0100 [thread overview]
Message-ID: <1455569868-25017-2-git-send-email-robert.jarzmik@free.fr> (raw)
In-Reply-To: <1455569868-25017-1-git-send-email-robert.jarzmik@free.fr>
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>
---
include/linux/platform_data/mmp_dma.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/platform_data/mmp_dma.h b/include/linux/platform_data/mmp_dma.h
index 2a330ec9e2af..d1397c8ed94e 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 */
--
2.1.4
next prev parent reply other threads:[~2016-02-15 20:57 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-15 20:57 [PATCH v2 1/4] dma: mmp_pdma: Add the #dma-requests DT property documentation Robert Jarzmik
2016-02-15 20:57 ` Robert Jarzmik [this message]
2016-02-23 17:45 ` [PATCH v2 2/4] dmaengine: mmp-pdma: add number of requestors Robert Jarzmik
2016-02-15 20:57 ` [PATCH v2 3/4] ARM: pxa: add the number of DMA requestor lines Robert Jarzmik
2016-02-15 20:57 ` [PATCH v2 4/4] dmaengine: pxa_dma: fix the maximum requestor line Robert Jarzmik
2016-02-20 21:39 ` Robert Jarzmik
2016-02-23 3:13 ` Vinod Koul
2016-02-23 7:13 ` Robert Jarzmik
2016-02-26 22:17 ` Robert Jarzmik
2016-02-18 14:38 ` [PATCH v2 1/4] dma: mmp_pdma: Add the #dma-requests DT property documentation Rob Herring
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