Hi Andy, On 01/07/2015 10:26 PM, Andy Gross wrote: > This patch removes the crci information from the dma channel property. At least > one client device requires using more than one CRCI value for a channel. This > does not match the current binding and the crci information needs to be removed. > > Instead, the client device will provide this information via other means. > > Signed-off-by: Andy Gross <agross@xxxxxxxxxxxxxx> > --- > Documentation/devicetree/bindings/dma/qcom_adm.txt | 14 +++++--------- > 1 file changed, 5 insertions(+), 9 deletions(-) > > diff --git a/Documentation/devicetree/bindings/dma/qcom_adm.txt b/Documentation/devicetree/bindings/dma/qcom_adm.txt > index 9bcab91..fba67c6 100644 > --- a/Documentation/devicetree/bindings/dma/qcom_adm.txt > +++ b/Documentation/devicetree/bindings/dma/qcom_adm.txt > @@ -4,8 +4,7 @@ Required properties: > - compatible: must contain "qcom,adm" for IPQ/APQ8064 and MSM8960 > - reg: Address range for DMA registers > - interrupts: Should contain one interrupt shared by all channels > -- #dma-cells: must be <2>. First cell denotes the channel number. Second cell > - denotes CRCI (client rate control interface) flow control assignment. > +- #dma-cells: must be <1>. First cell denotes the channel number. > - clocks: Should contain the core clock and interface clock. > - clock-names: Must contain "core" for the core clock and "iface" for the > interface clock. > @@ -22,7 +21,7 @@ Example: > compatible = "qcom,adm"; > reg = <0x18300000 0x100000>; > interrupts = <0 170 0>; > - #dma-cells = <2>; > + #dma-cells = <1>; > > clocks = <&gcc ADM0_CLK>, <&gcc ADM0_PBUS_CLK>; > clock-names = "core", "iface"; > @@ -35,15 +34,12 @@ Example: > qcom,ee = <0>; > }; > > -DMA clients must use the format descripted in the dma.txt file, using a three > +DMA clients must use the format descripted in the dma.txt file, using a two > cell specifier for each channel. > > Each dmas request consists of 3 cells: Now 2 cells? > 1. phandle pointing to the DMA controller > 2. channel number > - 3. CRCI assignment, if applicable. If no CRCI flow control is required, use 0. > - The CRCI is used for flow control. It identifies the peripheral device that > - is the source/destination for the transferred data. > > Example: > > @@ -56,7 +52,7 @@ Example: > > cs-gpios = <&qcom_pinmux 20 0>; > > - dmas = <&adm_dma 6 9>, > - <&adm_dma 5 10>; > + dmas = <&adm_dma 6>, > + <&adm_dma 5>; > dma-names = "rx", "tx"; > }; > Chris -- Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
