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authorDmitry Torokhov <dmitry.torokhov@gmail.com>2022-08-02 10:06:12 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2022-08-02 10:06:12 -0700
commit8bb5e7f4dcd9b9ef22a3ea25c9066a8a968f12dd (patch)
tree0f1383880607a227142f9388a066959926233ff1 /Documentation/devicetree/bindings/spmi/qcom,spmi-pmic-arb.yaml
parentInput: document the units for resolution of size axes (diff)
parentInput: adc-joystick - fix ordering in adc_joystick_probe() (diff)
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+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spmi/qcom,spmi-pmic-arb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SPMI Controller (PMIC Arbiter)
+
+maintainers:
+ - Stephen Boyd <sboyd@kernel.org>
+
+description: |
+ The SPMI PMIC Arbiter is found on Snapdragon chipsets. It is an SPMI
+ controller with wrapping arbitration logic to allow for multiple on-chip
+ devices to control a single SPMI master.
+
+ The PMIC Arbiter can also act as an interrupt controller, providing interrupts
+ to slave devices.
+
+allOf:
+ - $ref: spmi.yaml
+
+properties:
+ compatible:
+ const: qcom,spmi-pmic-arb
+
+ reg:
+ oneOf:
+ - items: # V1
+ - description: core registers
+ - description: interrupt controller registers
+ - description: configuration registers
+ - items: # V2
+ - description: core registers
+ - description: tx-channel per virtual slave regosters
+ - description: rx-channel (called observer) per virtual slave registers
+ - description: interrupt controller registers
+ - description: configuration registers
+
+ reg-names:
+ oneOf:
+ - items:
+ - const: core
+ - const: intr
+ - const: cnfg
+ - items:
+ - const: core
+ - const: chnls
+ - const: obsrvr
+ - const: intr
+ - const: cnfg
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-names:
+ const: periph_irq
+
+ interrupt-controller: true
+
+ '#address-cells': true
+
+ '#interrupt-cells':
+ const: 4
+ description: |
+ cell 1: slave ID for the requested interrupt (0-15)
+ cell 2: peripheral ID for requested interrupt (0-255)
+ cell 3: the requested peripheral interrupt (0-7)
+ cell 4: interrupt flags indicating level-sense information,
+ as defined in dt-bindings/interrupt-controller/irq.h
+
+ '#size-cells': true
+
+ qcom,ee:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 5
+ description: >
+ indicates the active Execution Environment identifier
+
+ qcom,channel:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 5
+ description: >
+ which of the PMIC Arb provided channels to use for accesses
+
+required:
+ - compatible
+ - reg-names
+ - qcom,ee
+ - qcom,channel
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ spmi@fc4cf000 {
+ compatible = "qcom,spmi-pmic-arb";
+ reg-names = "core", "intr", "cnfg";
+ reg = <0xfc4cf000 0x1000>,
+ <0xfc4cb000 0x1000>,
+ <0xfc4ca000 0x1000>;
+
+ interrupt-names = "periph_irq";
+ interrupts = <0 190 0>;
+
+ qcom,ee = <0>;
+ qcom,channel = <0>;
+
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ interrupt-controller;
+ #interrupt-cells = <4>;
+ };
+