Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) # SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) %YAML 1.2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) ---
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) $id: http://devicetree.org/schemas/mailbox/qcom-ipcc.yaml#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) $schema: http://devicetree.org/meta-schemas/core.yaml#
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) title: Qualcomm Technologies, Inc. Inter-Processor Communication Controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) maintainers:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)   - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)   The Inter-Processor Communication Controller (IPCC) is a centralized hardware
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)   to route interrupts across various subsystems. It involves a three-level
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)   addressing scheme called protocol, client and signal. For example, consider an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)   entity on the Application Processor Subsystem (APSS) that wants to listen to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)   Modem's interrupts via Shared Memory Point to Point (SMP2P) interface. In such
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)   a case, the client would be Modem (client-id is 2) and the signal would be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)   SMP2P (signal-id is 2). The SMP2P itself falls under the Multiprocessor (MPROC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)   protocol (protocol-id is 0). Refer include/dt-bindings/mailbox/qcom-ipcc.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)   for the list of such IDs.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) properties:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)   compatible:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)     items:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)       - enum:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)           - qcom,sm8250-ipcc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)       - const: qcom,ipcc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)   reg:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)     maxItems: 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)   interrupts:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)     maxItems: 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)   interrupt-controller: true
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)   "#interrupt-cells":
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)     const: 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)     description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)       The first cell is the client-id, the second cell is the signal-id and the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)       third cell is the interrupt type.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)   "#mbox-cells":
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)     const: 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)     description:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)       The first cell is the client-id, and the second cell is the signal-id.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) required:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50)   - compatible
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)   - reg
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)   - interrupts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)   - interrupt-controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)   - "#interrupt-cells"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)   - "#mbox-cells"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) additionalProperties: false
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) examples:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)   - |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)         #include <dt-bindings/interrupt-controller/arm-gic.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)         #include <dt-bindings/mailbox/qcom-ipcc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)         mailbox@408000 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)                 compatible = "qcom,sm8250-ipcc", "qcom,ipcc";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)                 reg = <0x408000 0x1000>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)                 interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_HIGH>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)                 interrupt-controller;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)                 #interrupt-cells = <3>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)                 #mbox-cells = <2>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)         };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)         smp2p-modem {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)                 compatible = "qcom,smp2p";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)                 interrupts-extended = <&ipcc_mproc IPCC_CLIENT_MPSS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)                                 IPCC_MPROC_SIGNAL_SMP2P IRQ_TYPE_EDGE_RISING>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)                 mboxes = <&ipcc_mproc IPCC_CLIENT_MPSS IPCC_MPROC_SIGNAL_SMP2P>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)                 /* Other SMP2P fields */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)         };