Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
89 lines
2.5 KiB
YAML
89 lines
2.5 KiB
YAML
# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/mailbox/qcom-ipcc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm Technologies, Inc. Inter-Processor Communication Controller
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maintainers:
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- Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
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description:
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The Inter-Processor Communication Controller (IPCC) is a centralized hardware
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to route interrupts across various subsystems. It involves a three-level
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addressing scheme called protocol, client and signal. For example, consider an
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entity on the Application Processor Subsystem (APSS) that wants to listen to
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Modem's interrupts via Shared Memory Point to Point (SMP2P) interface. In such
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a case, the client would be Modem (client-id is 2) and the signal would be
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SMP2P (signal-id is 2). The SMP2P itself falls under the Multiprocessor (MPROC)
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protocol (protocol-id is 0). Refer include/dt-bindings/mailbox/qcom-ipcc.h
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for the list of such IDs.
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properties:
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compatible:
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items:
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- enum:
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- qcom,milos-ipcc
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- qcom,qcs8300-ipcc
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- qcom,qdu1000-ipcc
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- qcom,sa8255p-ipcc
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- qcom,sa8775p-ipcc
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- qcom,sar2130p-ipcc
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- qcom,sc7280-ipcc
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- qcom,sc8280xp-ipcc
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- qcom,sdx75-ipcc
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- qcom,sm6350-ipcc
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- qcom,sm6375-ipcc
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- qcom,sm8250-ipcc
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- qcom,sm8350-ipcc
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- qcom,sm8450-ipcc
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- qcom,sm8550-ipcc
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- qcom,sm8650-ipcc
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- qcom,sm8750-ipcc
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- qcom,x1e80100-ipcc
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- const: qcom,ipcc
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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interrupt-controller: true
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"#interrupt-cells":
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const: 3
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description:
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The first cell is the client-id, the second cell is the signal-id and the
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third cell is the interrupt type.
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"#mbox-cells":
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const: 2
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description:
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The first cell is the client-id, and the second cell is the signal-id.
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required:
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- compatible
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- reg
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- interrupts
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- interrupt-controller
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- "#interrupt-cells"
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- "#mbox-cells"
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/mailbox/qcom-ipcc.h>
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mailbox@408000 {
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compatible = "qcom,sm8250-ipcc", "qcom,ipcc";
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reg = <0x408000 0x1000>;
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interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_HIGH>;
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interrupt-controller;
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#interrupt-cells = <3>;
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#mbox-cells = <2>;
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};
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