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[v2,1/2] dt-bindings: dmaengine: sprd: Change channel id to slave id for DMA cell specifier

Message ID 652a8ef9554890c254823ec39858b8d7413fd561.1550719757.git.baolin.wang@linaro.org
State Accepted
Commit b5a4c37324049efe0e0199e975e0df9554fa8873
Headers show
Series [v2,1/2] dt-bindings: dmaengine: sprd: Change channel id to slave id for DMA cell specifier | expand

Commit Message

(Exiting) Baolin Wang Feb. 21, 2019, 5:34 a.m. UTC
For Spreadtrum DMA engine, all channels are equal, which means slave can
request any channels with setting a unique slave id to trigger this channel.

Thus we can remove the channel id from device tree to assign the channel
dynamically, moreover we should add the slave id in device tree.

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>

---
Changes from v1:
 - Remove channel id from DT.
---
 Documentation/devicetree/bindings/dma/sprd-dma.txt |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
1.7.9.5

Comments

Rob Herring (Arm) Feb. 22, 2019, 8:42 p.m. UTC | #1
On Thu, 21 Feb 2019 13:34:40 +0800, Baolin Wang wrote:
> For Spreadtrum DMA engine, all channels are equal, which means slave can

> request any channels with setting a unique slave id to trigger this channel.

> 

> Thus we can remove the channel id from device tree to assign the channel

> dynamically, moreover we should add the slave id in device tree.

> 

> Signed-off-by: Baolin Wang <baolin.wang@linaro.org>

> ---

> Changes from v1:

>  - Remove channel id from DT.

> ---

>  Documentation/devicetree/bindings/dma/sprd-dma.txt |    2 +-

>  1 file changed, 1 insertion(+), 1 deletion(-)

> 


Reviewed-by: Rob Herring <robh@kernel.org>
Vinod Koul Feb. 25, 2019, 6:41 a.m. UTC | #2
On 21-02-19, 13:34, Baolin Wang wrote:
> For Spreadtrum DMA engine, all channels are equal, which means slave can

> request any channels with setting a unique slave id to trigger this channel.

> 

> Thus we can remove the channel id from device tree to assign the channel

> dynamically, moreover we should add the slave id in device tree.


Applied, thanks

-- 
~Vinod
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/dma/sprd-dma.txt b/Documentation/devicetree/bindings/dma/sprd-dma.txt
index 7a10fea..adccea994 100644
--- a/Documentation/devicetree/bindings/dma/sprd-dma.txt
+++ b/Documentation/devicetree/bindings/dma/sprd-dma.txt
@@ -31,7 +31,7 @@  DMA clients connected to the Spreadtrum DMA controller must use the format
 described in the dma.txt file, using a two-cell specifier for each channel.
 The two cells in order are:
 1. A phandle pointing to the DMA controller.
-2. The channel id.
+2. The slave id.
 
 spi0: spi@70a00000{
 	...