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Groups > linux.kernel > #1334808
| From | Robert Jarzmik <robert.jarzmik@free.fr> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 2/4] dmaengine: mmp-pdma: add number of requestors |
| Date | 2016-02-15 22:00 +0100 |
| Message-ID | <r2yps-6g5-19@gated-at.bofh.it> (permalink) |
| References | <r2ypr-6g5-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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
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[PATCH v2 1/4] dma: mmp_pdma: Add the #dma-requests DT property documentation Robert Jarzmik <robert.jarzmik@free.fr> - 2016-02-15 22:00 +0100
[PATCH v2 2/4] dmaengine: mmp-pdma: add number of requestors Robert Jarzmik <robert.jarzmik@free.fr> - 2016-02-15 22:00 +0100
[PATCH v2 3/4] ARM: pxa: add the number of DMA requestor lines Robert Jarzmik <robert.jarzmik@free.fr> - 2016-02-15 22:00 +0100
[PATCH v2 4/4] dmaengine: pxa_dma: fix the maximum requestor line Robert Jarzmik <robert.jarzmik@free.fr> - 2016-02-15 22:00 +0100
Re: [PATCH v2 4/4] dmaengine: pxa_dma: fix the maximum requestor line Robert Jarzmik <robert.jarzmik@free.fr> - 2016-02-20 22:40 +0100
Re: [PATCH v2 1/4] dma: mmp_pdma: Add the #dma-requests DT property documentation Rob Herring <robh@kernel.org> - 2016-02-18 15:40 +0100
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