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author | Sascha Hauer <s.hauer@pengutronix.de> | 2018-09-11 08:26:30 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-09-11 17:23:13 +0200 |
commit | 35f607bc7da71b302fd6bf3d6d48d7ea66df1195 (patch) | |
tree | dd2cf14c56430d21079c794fa6e03d7f5d91070e /dts/Bindings/slimbus/slim-ngd-qcom-ctrl.txt | |
parent | 625eea2765d94aee016cf25d9cabecde8eae0775 (diff) | |
download | barebox-35f607bc7da71b302fd6bf3d6d48d7ea66df1195.tar.gz barebox-35f607bc7da71b302fd6bf3d6d48d7ea66df1195.tar.xz |
dts: update to v4.19-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/slimbus/slim-ngd-qcom-ctrl.txt')
-rw-r--r-- | dts/Bindings/slimbus/slim-ngd-qcom-ctrl.txt | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/dts/Bindings/slimbus/slim-ngd-qcom-ctrl.txt b/dts/Bindings/slimbus/slim-ngd-qcom-ctrl.txt new file mode 100644 index 0000000000..e94a2ad3a7 --- /dev/null +++ b/dts/Bindings/slimbus/slim-ngd-qcom-ctrl.txt @@ -0,0 +1,84 @@ +Qualcomm SLIMBus Non Generic Device (NGD) Controller binding + +SLIMBus NGD controller is a light-weight driver responsible for communicating +with SLIMBus slaves directly over the bus using messaging interface and +communicating with master component residing on ADSP for bandwidth and +data-channel management + +Please refer to slimbus/bus.txt for details of the common SLIMBus bindings. + +- compatible: + Usage: required + Value type: <stringlist> + Definition: must be "qcom,slim-ngd-v<MAJOR>.<MINOR>.<STEP>" + must be one of the following. + "qcom,slim-ngd-v1.5.0" for MSM8996 + "qcom,slim-ngd-v2.1.0" for SDM845 + +- reg: + Usage: required + Value type: <prop-encoded-array> + Definition: must specify the base address and size of the controller + register space. +- dmas + Usage: required + Value type: <array of phandles> + Definition: List of rx and tx dma channels + +- dma-names + Usage: required + Value type: <stringlist> + Definition: must be "rx" and "tx". + +- interrupts: + Usage: required + Value type: <prop-encoded-array> + Definition: must list controller IRQ. + +#address-cells + Usage: required + Value type: <u32> + Definition: Should be 1, reflecting the instance id of ngd. + +#size-cells + Usage: required + Value type: <u32> + Definition: Should be 0 + += NGD Devices +Each subnode represents an instance of NGD, must contain the following +properties: + +- reg: + Usage: required + Value type: <u32> + Definition: Should be instance id of ngd. + +#address-cells + Usage: required + Refer to slimbus/bus.txt for details of the common SLIMBus bindings. + +#size-cells + Usage: required + Refer to slimbus/bus.txt for details of the common SLIMBus bindings. + += EXAMPLE + +slim@91c0000 { + compatible = "qcom,slim-ngd-v1.5.0"; + reg = <0x91c0000 0x2c000>; + interrupts = <0 163 0>; + dmas = <&slimbam 3>, <&slimbam 4>; + dma-names = "rx", "tx"; + #address-cells = <1>; + #size-cells = <0>; + ngd@1 { + reg = <1>; + #address-cells = <1>; + #size-cells = <1>; + codec@1 { + compatible = "slim217,1a0"; + reg = <1 0>; + }; + }; +}; |