summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/dma/stm32-dma.txt
diff options
context:
space:
mode:
authorLinus Torvalds2017-11-15 01:49:31 +0100
committerLinus Torvalds2017-11-15 01:49:31 +0100
commit23c258763ba992f6a95a4b8980ffa7c1890bc8d8 (patch)
tree7f089cb2c2a3f01ff071bca2dc9cc4e2b939a8c4 /Documentation/devicetree/bindings/dma/stm32-dma.txt
parentMerge tag 'vfio-v4.15-rc1' of git://github.com/awilliam/linux-vfio (diff)
parentMerge branch 'topic/xilinx' into for-linus (diff)
downloadkernel-qcow2-linux-23c258763ba992f6a95a4b8980ffa7c1890bc8d8.tar.gz
kernel-qcow2-linux-23c258763ba992f6a95a4b8980ffa7c1890bc8d8.tar.xz
kernel-qcow2-linux-23c258763ba992f6a95a4b8980ffa7c1890bc8d8.zip
Merge tag 'dmaengine-4.15-rc1' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine updates from Vinod Koul: "Updates for this cycle include: - new driver for Spreadtrum dma controller, ST MDMA and DMAMUX controllers - PM support for IMG MDC drivers - updates to bcm-sba-raid driver and improvements to sun6i driver - subsystem conversion for: - timers to use timer_setup() - remove usage of PCI pool API - usage of %p format specifier - minor updates to bunch of drivers" * tag 'dmaengine-4.15-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (49 commits) dmaengine: ti-dma-crossbar: Correct am335x/am43xx mux value type dmaengine: dmatest: warn user when dma test times out dmaengine: Revert "rcar-dmac: use TCRB instead of TCR for residue" dmaengine: stm32_mdma: activate pack/unpack feature dmaengine: at_hdmac: Remove unnecessary 0x prefixes before %pad dmaengine: coh901318: Remove unnecessary 0x prefixes before %pad MAINTAINERS: Step down from a co-maintaner of DW DMAC driver dmaengine: pch_dma: Replace PCI pool old API dmaengine: Convert timers to use timer_setup() dmaengine: sprd: Add Spreadtrum DMA driver dt-bindings: dmaengine: Add Spreadtrum SC9860 DMA controller dmaengine: sun6i: Retrieve channel count/max request from devicetree dmaengine: Build bcm-sba-raid driver as loadable module for iProc SoCs dmaengine: bcm-sba-raid: Use common GPL comment header dmaengine: bcm-sba-raid: Use only single mailbox channel dmaengine: bcm-sba-raid: serialize dma_cookie_complete() using reqs_lock dmaengine: pl330: fix descriptor allocation fail dmaengine: rcar-dmac: use TCRB instead of TCR for residue dmaengine: sun6i: Add support for Allwinner A64 and compatibles arm64: allwinner: a64: Add devicetree binding for DMA controller ...
Diffstat (limited to 'Documentation/devicetree/bindings/dma/stm32-dma.txt')
-rw-r--r--Documentation/devicetree/bindings/dma/stm32-dma.txt4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/dma/stm32-dma.txt b/Documentation/devicetree/bindings/dma/stm32-dma.txt
index 6f44df94101c..0b55718bf889 100644
--- a/Documentation/devicetree/bindings/dma/stm32-dma.txt
+++ b/Documentation/devicetree/bindings/dma/stm32-dma.txt
@@ -13,6 +13,7 @@ Required properties:
- #dma-cells : Must be <4>. See DMA client paragraph for more details.
Optional properties:
+- dma-requests : Number of DMA requests supported.
- resets: Reference to a reset controller asserting the DMA controller
- st,mem2mem: boolean; if defined, it indicates that the controller supports
memory-to-memory transfer
@@ -34,12 +35,13 @@ Example:
#dma-cells = <4>;
st,mem2mem;
resets = <&rcc 150>;
+ dma-requests = <8>;
};
* DMA client
DMA clients connected to the STM32 DMA controller must use the format
-described in the dma.txt file, using a five-cell specifier for each
+described in the dma.txt file, using a four-cell specifier for each
channel: a phandle to the DMA controller plus the following four integer cells:
1. The channel id