[RESEND PATCH v2 01/15] dt-bindings: soc: qcom: Add bindings for APR bus
From: srinivas.kandagatla at linaro.org <hidden>
Date: 2017-12-14 17:42:55
Also in:
alsa-devel, linux-arm-msm, linux-devicetree, lkml
Subsystem:
arm/qualcomm mailing list, arm/qualcomm support, open firmware and flattened device tree bindings, qcom audio (asoc) drivers, the rest · Maintainers:
Bjorn Andersson, Konrad Dybcio, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Srinivas Kandagatla, Linus Torvalds
From: Srinivas Kandagatla <redacted> This patch add dt bindings for Qualcomm APR bus driver Signed-off-by: Srinivas Kandagatla <redacted> --- .../devicetree/bindings/soc/qcom/qcom,apr.txt | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt
diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt
new file mode 100644
index 000000000000..4e93213ae98d
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt@@ -0,0 +1,28 @@ +Qualcomm APR (Asynchronous Packet Router) binding + +This binding describes the Qualcomm APR. APR is a IPC protocol for +communication between Application processor and QDSP. APR is mainly +used for audio/voice services on the QDSP. + +- compatible: + Usage: required + Value type: <stringlist> + Definition: must be "qcom,apr-<SOC-NAME>" example: "qcom,apr-msm8996" + + +- qcom,smd-channel: + Usage: required + Value type: <string> + Definition: standard SMD property specifying the SMD channel used for + communication with the APR on QDSP. + Should be "apr_audio_svc". + Described in soc/qcom/qcom,smd.txt + += EXAMPLE +The following example represents a QDSP based sound card on a MSM8996 device +which uses apr as communication between Apps and QDSP. + + apr { + compatible = "qcom,apr-msm8996"; + qcom,smd-channels = "apr_audio_svc"; + };
--
2.15.0