diff options
Diffstat (limited to 'Documentation/devicetree/bindings/soc')
3 files changed, 99 insertions, 2 deletions
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..bcc612cc7423 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,apr.txt @@ -0,0 +1,84 @@ +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-v<VERSION-NUMBER>", example "qcom,apr-v2" + +- reg + Usage: required + Value type: <u32> + Definition: Destination processor ID. + Possible values are : + 1 - APR simulator + 2 - PC + 3 - MODEM + 4 - ADSP + 5 - APPS + 6 - MODEM2 + 7 - APPS2 + += APR SERVICES +Each subnode of the APR node represents service tied to this apr. The name +of the nodes are not important. The properties of these nodes are defined +by the individual bindings for the specific service +- All APR services MUST contain the following property: + +- reg + Usage: required + Value type: <u32> + Definition: APR Service ID + Possible values are : + 3 - DSP Core Service + 4 - Audio Front End Service. + 5 - Voice Stream Manager Service. + 6 - Voice processing manager. + 7 - Audio Stream Manager Service. + 8 - Audio Device Manager Service. + 9 - Multimode voice manager. + 10 - Core voice stream. + 11 - Core voice processor. + 12 - Ultrasound stream manager. + 13 - Listen stream manager. + += EXAMPLE +The following example represents a QDSP based sound card on a MSM8996 device +which uses apr as communication between Apps and QDSP. + + apr@4 { + compatible = "qcom,apr-v2"; + reg = <APR_DOMAIN_ADSP>; + + q6core@3 { + compatible = "qcom,q6core"; + reg = <APR_SVC_ADSP_CORE>; + }; + + q6afe@4 { + compatible = "qcom,q6afe"; + reg = <APR_SVC_AFE>; + + dais { + #sound-dai-cells = <1>; + hdmi@1 { + reg = <1>; + }; + }; + }; + + q6asm@7 { + compatible = "qcom,q6asm"; + reg = <APR_SVC_ASM>; + ... + }; + + q6adm@8 { + compatible = "qcom,q6adm"; + reg = <APR_SVC_ADM>; + ... + }; + }; diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,smd.txt b/Documentation/devicetree/bindings/soc/qcom/qcom,smd.txt index ea1dc75ec9ea..234ae2256501 100644 --- a/Documentation/devicetree/bindings/soc/qcom/qcom,smd.txt +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,smd.txt @@ -22,9 +22,15 @@ The edge is described by the following properties: Definition: should specify the IRQ used by the remote processor to signal this processor about communication related updates -- qcom,ipc: +- mboxes: Usage: required Value type: <prop-encoded-array> + Definition: reference to the associated doorbell in APCS, as described + in mailbox/mailbox.txt + +- qcom,ipc: + Usage: required, unless mboxes is specified + Value type: <prop-encoded-array> Definition: three entries specifying the outgoing ipc bit used for signaling the remote processor: - phandle to a syscon node representing the apcs registers diff --git a/Documentation/devicetree/bindings/soc/ti/keystone-navigator-qmss.txt b/Documentation/devicetree/bindings/soc/ti/keystone-navigator-qmss.txt index 77cd42cc5f54..b025770eeb92 100644 --- a/Documentation/devicetree/bindings/soc/ti/keystone-navigator-qmss.txt +++ b/Documentation/devicetree/bindings/soc/ti/keystone-navigator-qmss.txt @@ -17,7 +17,8 @@ pool management. Required properties: -- compatible : Must be "ti,keystone-navigator-qmss"; +- compatible : Must be "ti,keystone-navigator-qmss". + : Must be "ti,66ak2g-navss-qm" for QMSS on K2G SoC. - clocks : phandle to the reference clock for this device. - queue-range : <start number> total range of queue numbers for the device. - linkram0 : <address size> for internal link ram, where size is the total @@ -39,6 +40,12 @@ Required properties: - Descriptor memory setup region. - Queue Management/Queue Proxy region for queue Push. - Queue Management/Queue Proxy region for queue Pop. + +For QMSS on K2G SoC, following QM reg indexes are used in that order + - Queue Peek region. + - Queue configuration region. + - Queue Management/Queue Proxy region for queue Push/Pop. + - queue-pools : child node classifying the queue ranges into pools. Queue ranges are grouped into 3 type of pools: - qpend : pool of qpend(interruptible) queues |