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-Binding for the Qualcomm APCS global block
-==========================================
-
-This binding describes the APCS "global" block found in various Qualcomm
-platforms.
-
-- compatible:
- Usage: required
- Value type: <string>
- Definition: must be one of:
- "qcom,msm8916-apcs-kpss-global",
- "qcom,msm8996-apcs-hmss-global"
- "qcom,msm8998-apcs-hmss-global"
- "qcom,qcs404-apcs-apps-global"
- "qcom,sc7180-apss-shared"
- "qcom,sdm845-apss-shared"
- "qcom,sm8150-apss-shared"
- "qcom,ipq8074-apcs-apps-global"
-
-- reg:
- Usage: required
- Value type: <prop-encoded-array>
- Definition: must specify the base address and size of the global block
-
-- clocks:
- Usage: required if #clock-names property is present
- Value type: <phandle array>
- Definition: phandles to the two parent clocks of the clock driver.
-
-- #mbox-cells:
- Usage: required
- Value type: <u32>
- Definition: as described in mailbox.txt, must be 1
-
-- #clock-cells:
- Usage: optional
- Value type: <u32>
- Definition: as described in clock.txt, must be 0
-
-- clock-names:
- Usage: required if the platform data based clock driver needs to
- retrieve the parent clock names from device tree.
- This will requires two mandatory clocks to be defined.
- Value type: <string-array>
- Definition: must be "pll" and "aux"
-
-= EXAMPLE
-The following example describes the APCS HMSS found in MSM8996 and part of the
-GLINK RPM referencing the "rpm_hlos" doorbell therein.
-
- apcs_glb: mailbox@9820000 {
- compatible = "qcom,msm8996-apcs-hmss-global";
- reg = <0x9820000 0x1000>;
-
- #mbox-cells = <1>;
- };
-
- rpm-glink {
- compatible = "qcom,glink-rpm";
-
- interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
-
- qcom,rpm-msg-ram = <&rpm_msg_ram>;
-
- mboxes = <&apcs_glb 0>;
- mbox-names = "rpm_hlos";
- };
-
-Below is another example of the APCS binding on MSM8916 platforms:
-
- apcs: mailbox@b011000 {
- compatible = "qcom,msm8916-apcs-kpss-global";
- reg = <0xb011000 0x1000>;
- #mbox-cells = <1>;
- clocks = <&a53pll>;
- #clock-cells = <0>;
- };
-
-Below is another example of the APCS binding on QCS404 platforms:
-
- apcs_glb: mailbox@b011000 {
- compatible = "qcom,qcs404-apcs-apps-global", "syscon";
- reg = <0x0b011000 0x1000>;
- #mbox-cells = <1>;
- clocks = <&apcs_hfpll>, <&gcc GCC_GPLL0_AO_OUT_MAIN>;
- clock-names = "pll", "aux";
- #clock-cells = <0>;
- };
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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/mailbox/qcom,apcs-kpss-global.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm APCS global block bindings
+
+description:
+ This binding describes the APCS "global" block found in various Qualcomm
+ platforms.
+
+maintainers:
+ - Sivaprakash Murugesan <sivaprak@codeaurora.org>
+
+properties:
+ compatible:
+ enum:
+ - qcom,ipq8074-apcs-apps-global
+ - qcom,msm8916-apcs-kpss-global
+ - qcom,msm8996-apcs-hmss-global
+ - qcom,msm8998-apcs-hmss-global
+ - qcom,qcs404-apcs-apps-global
+ - qcom,sc7180-apss-shared
+ - qcom,sdm845-apss-shared
+ - qcom,sm8150-apss-shared
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ description: phandles to the parent clocks of the clock driver
+ items:
+ - description: primary pll parent of the clock driver
+ - description: auxiliary parent
+
+ '#mbox-cells':
+ const: 1
+
+ '#clock-cells':
+ const: 0
+
+ clock-names:
+ items:
+ - const: pll
+ - const: aux
+
+required:
+ - compatible
+ - reg
+ - '#mbox-cells'
+
+additionalProperties: false
+
+examples:
+
+ # Example apcs with msm8996
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ apcs_glb: mailbox@9820000 {
+ compatible = "qcom,msm8996-apcs-hmss-global";
+ reg = <0x9820000 0x1000>;
+
+ #mbox-cells = <1>;
+ };
+
+ rpm-glink {
+ compatible = "qcom,glink-rpm";
+ interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
+ qcom,rpm-msg-ram = <&rpm_msg_ram>;
+ mboxes = <&apcs_glb 0>;
+ mbox-names = "rpm_hlos";
+ };
+
+ # Example apcs with qcs404
+ - |
+ #define GCC_APSS_AHB_CLK_SRC 1
+ #define GCC_GPLL0_AO_OUT_MAIN 123
+ apcs: mailbox@b011000 {
+ compatible = "qcom,qcs404-apcs-apps-global";
+ reg = <0x0b011000 0x1000>;
+ #mbox-cells = <1>;
+ clocks = <&apcs_hfpll>, <&gcc GCC_GPLL0_AO_OUT_MAIN>;
+ clock-names = "pll", "aux";
+ #clock-cells = <0>;
+ };