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+Qualcomm WCNSS Binding
+
+This binding describes the Qualcomm WCNSS hardware. It consists of control
+block and a BT, WiFi and FM radio block, all using SMD as command channels.
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be: "qcom,wcnss",
+
+- qcom,smd-channel:
+ Usage: required
+ Value type: <string>
+ Definition: standard SMD property specifying the SMD channel used for
+ communication with the WiFi firmware.
+ Should be "WCNSS_CTRL".
+
+- qcom,mmio:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: reference to a node specifying the wcnss "ccu" and "dxe"
+ register blocks. The node must be compatible with one of
+ the following:
+ "qcom,riva",
+ "qcom,pronto"
+
+= SUBNODES
+The subnodes of the wcnss node are optional and describe the individual blocks in
+the WCNSS.
+
+== Bluetooth
+The following properties are defined to the bluetooth node:
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be:
+ "qcom,wcnss-bt"
+
+== WiFi
+The following properties are defined to the WiFi node:
+
+- compatible:
+ Usage: required
+ Value type: <string>
+ Definition: must be one of:
+ "qcom,wcnss-wlan",
+
+- interrupts:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: should specify the "rx" and "tx" interrupts
+
+- interrupt-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must contain "rx" and "tx"
+
+- qcom,smem-state:
+ Usage: required
+ Value type: <prop-encoded-array>
+ Definition: should reference the tx-enable and tx-rings-empty SMEM states
+
+- qcom,smem-state-names:
+ Usage: required
+ Value type: <stringlist>
+ Definition: must contain "tx-enable" and "tx-rings-empty"
+
+= EXAMPLE
+The following example represents a SMD node, with one edge representing the
+"pronto" subsystem, with the wcnss device and its wcn3680 BT and WiFi blocks
+described; as found on the 8974 platform.
+
+smd {
+ compatible = "qcom,smd";
+
+ pronto-edge {
+ interrupts = <0 142 1>;
+
+ qcom,ipc = <&apcs 8 17>;
+ qcom,smd-edge = <6>;
+
+ wcnss {
+ compatible = "qcom,wcnss";
+ qcom,smd-channels = "WCNSS_CTRL";
+
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ qcom,mmio = <&pronto>;
+
+ bt {
+ compatible = "qcom,wcnss-bt";
+ };
+
+ wlan {
+ compatible = "qcom,wcnss-wlan";
+
+ interrupts = <0 145 0>, <0 146 0>;
+ interrupt-names = "tx", "rx";
+
+ qcom,smem-state = <&apps_smsm 10>, <&apps_smsm 9>;
+ qcom,smem-state-names = "tx-enable", "tx-rings-empty";
+ };
+ };
+ };
+};
+
+soc {
+ pronto: pronto {
+ compatible = "qcom,pronto";
+
+ reg = <0xfb204000 0x2000>, <0xfb202000 0x1000>, <0xfb21b000 0x3000>;
+ reg-names = "ccu", "dxe", "pmu";
+ };
+};
This binding describes the control interface for the Qualcomm WCNSS. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> --- Changes since v3: - Included missed fixup of the smem-state properties Changes since v2: - Fixup some misstakes in the document pointed out by Rob Changes since v1: - Introduce reference to wcnss block node for register block definition - Use wcnss block node compatible for hw version detection (riva vs pronto) - Clean up compatible name for bt node .../devicetree/bindings/soc/qcom/qcom,wcnss.txt | 116 +++++++++++++++++++++ 1 file changed, 116 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,wcnss.txt -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html