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Message-Id: <20250919140952.1057737-1-pankaj.patil@oss.qualcomm.com>
Date: Fri, 19 Sep 2025 19:39:52 +0530
From: Pankaj Patil <pankaj.patil@....qualcomm.com>
To: sboyd@...nel.org, robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org
Subject: [PATCH] dt-bindings: spmi: add bindings for glymur-spmi-pmic-arb (arbiter v8)
From: Jishnu Prakash <jishnu.prakash@....qualcomm.com>
SPMI PMIC Arbiter version 8 builds upon version 7 with support for
up to four SPMI buses. To achieve this, the register map was
slightly rearranged. Add a new binding file and compatible string
for version 8 using the name 'glymur' as the Qualcomm Technologies,
Inc. Glymur SoC is the first one to use PMIC arbiter version 8. This
specifies the new register ranges needed only for version 8.
Signed-off-by: David Collins <david.collins@....qualcomm.com>
Signed-off-by: Jishnu Prakash <jishnu.prakash@....qualcomm.com>
Signed-off-by: Pankaj Patil <pankaj.patil@....qualcomm.com>
---
.../spmi/qcom,glymur-spmi-pmic-arb.yaml | 158 ++++++++++++++++++
1 file changed, 158 insertions(+)
create mode 100644 Documentation/devicetree/bindings/spmi/qcom,glymur-spmi-pmic-arb.yaml
diff --git a/Documentation/devicetree/bindings/spmi/qcom,glymur-spmi-pmic-arb.yaml b/Documentation/devicetree/bindings/spmi/qcom,glymur-spmi-pmic-arb.yaml
new file mode 100644
index 000000000000..e80997a5fb4b
--- /dev/null
+++ b/Documentation/devicetree/bindings/spmi/qcom,glymur-spmi-pmic-arb.yaml
@@ -0,0 +1,158 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spmi/qcom,glymur-spmi-pmic-arb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. Glymur SPMI Controller (PMIC Arbiter v8)
+
+maintainers:
+ - Stephen Boyd <sboyd@...nel.org>
+
+description: |
+ The Glymur SPMI PMIC Arbiter implements HW version 8 and it's an SPMI
+ controller with wrapping arbitration logic to allow for multiple on-chip
+ devices to control up to 4 SPMI separate buses.
+
+ The PMIC Arbiter can also act as an interrupt controller, providing interrupts
+ to slave devices.
+
+properties:
+ compatible:
+ enum:
+ - qcom,glymur-spmi-pmic-arb
+
+ reg:
+ items:
+ - description: core registers
+ - description: tx-channel per virtual slave registers
+ - description: rx-channel (called observer) per virtual slave registers
+ - description: channel to PMIC peripheral mapping registers
+
+ reg-names:
+ items:
+ - const: core
+ - const: chnls
+ - const: obsrvr
+ - const: chnl_map
+
+ ranges: true
+
+ '#address-cells':
+ const: 2
+
+ '#size-cells':
+ const: 2
+
+ qcom,ee:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 5
+ description: >
+ indicates the active Execution Environment identifier
+
+ qcom,channel:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 5
+ description: >
+ which of the PMIC Arb provided channels to use for accesses
+
+patternProperties:
+ "^spmi@[a-f0-9]+$":
+ type: object
+ $ref: /schemas/spmi/spmi.yaml
+ unevaluatedProperties: false
+
+ properties:
+ reg:
+ items:
+ - description: configuration registers
+ - description: interrupt controller registers
+ - description: channel owner EE mapping registers
+
+ reg-names:
+ items:
+ - const: cnfg
+ - const: intr
+ - const: chnl_owner
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-names:
+ const: periph_irq
+
+ interrupt-controller: 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
+
+required:
+ - compatible
+ - reg-names
+ - qcom,ee
+ - qcom,channel
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ arbiter@...0000 {
+ compatible = "qcom,glymur-spmi-pmic-arb";
+ reg = <0x0 0xc400000 0x0 0x3000>,
+ <0x0 0xc900000 0x0 0x400000>,
+ <0x0 0xc4c0000 0x0 0x400000>,
+ <0x0 0xc403000 0x0 0x8000>;
+ reg-names = "core", "chnls", "obsrvr", "chnl_map";
+
+ qcom,ee = <0>;
+ qcom,channel = <0>;
+
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ spmi@...6000 {
+ reg = <0x0 0xc426000 0x0 0x4000>,
+ <0x0 0xc8c0000 0x0 0x10000>,
+ <0x0 0xc42a000 0x0 0x8000>;
+ reg-names = "cnfg", "intr", "chnl_owner";
+
+ interrupts-extended = <&pdc 1 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "periph_irq";
+ interrupt-controller;
+ #interrupt-cells = <4>;
+
+ #address-cells = <2>;
+ #size-cells = <0>;
+ };
+
+ spmi@...7000 {
+ reg = <0x0 0xc437000 0x0 0x4000>,
+ <0x0 0xc8d0000 0x0 0x10000>,
+ <0x0 0xc43b000 0x0 0x8000>;
+ reg-names = "cnfg", "intr", "chnl_owner";
+
+ interrupts-extended = <&pdc 3 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "periph_irq";
+ interrupt-controller;
+ #interrupt-cells = <4>;
+
+ #address-cells = <2>;
+ #size-cells = <0>;
+ };
+ };
+ };
--
2.34.1
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