70 lines
1.9 KiB
Plaintext
70 lines
1.9 KiB
Plaintext
Qualcomm Technologies, Inc. GLINK Probe
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This binding describes the GLINK Probe driver, a device
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that initializes the GLINK edge pairs within the system.
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- compatible :
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Usage: required
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Value type: <stringlist>
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Definition: must be "qcom,glink"
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= SUBNODES
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The GLINK probe node must contain subnodes that describes the
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edge-pairs. See qcom,glink.txt for details on how to describe them.
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In addition to the properties in qcom,glink.txt, The GLINK Probe driver
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requires the qcom,glink-label and transport type to be specified in the
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subnodes.
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- transport :
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Usage: required
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Value type: <stringlist>
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Definition: must be "smem", "spss", or "spi"
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- qcom,glink-label :
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Usage: required
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Value type: <stringlist>
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Definition: specifies the identifier of the remote proc of this edge.
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= GLINK_SSR
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The GLINK probe driver also initializes the GLINK_SSR channel for the edges
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that it brings up. The channel should be specified as a subnode to each edge. In
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addition to the properties in qcom,glink.txt to specify a channel device node,
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the qcom,notify-edges property must be defined.
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- qcom,notify-edges :
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Usage: required
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Value type: <prop-encoded-array>
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Definition: list of phandles that specify the subsystems this glink edge
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needs to receive ssr notifications about.
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= EXAMPLE
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qcom,glink {
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compatible = "qcom,glink";
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glink_modem: modem {
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transport = "smem";
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qcom,remote-pid = <0>;
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mboxes = <&apcs_glb 8>;
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mbox-names = "mpss_smem";
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interrupts = <GIC_SPI 449 IRQ_TYPE_EDGE_RISING>;
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qcom,modem_glink_ssr {
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qcom,glink-channels = "glink_ssr";
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qcom,notify-edges = <&glink_adsp>;
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};
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};
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glink_adsp: adsp {
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transport = "smem";
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qcom,remote-pid = <2>;
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mboxes = <&apcs_glb 4>;
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mbox-names = "adsp_smem";
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interrupts = <GIC_SPI 348 IRQ_TYPE_EDGE_RISING>;
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qcom,modem_glink_ssr {
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qcom,glink-channels = "glink_ssr";
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qcom,notify-edges = <&glink_modem>;
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};
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};
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};
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