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From: Shawn Guo <shawn.guo@linaro.org>
To: Marc Zyngier <maz@kernel.org>, Thomas Gleixner <tglx@linutronix.de>
Cc: Maulik Shah <quic_mkshah@quicinc.com>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Loic Poulain <loic.poulain@linaro.org>,
	linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Shawn Guo <shawn.guo@linaro.org>
Subject: [PATCH v3 2/3] dt-bindings: interrupt-controller: Add Qualcomm MPM support
Date: Thu,  2 Dec 2021 20:21:21 +0800	[thread overview]
Message-ID: <20211202122122.23548-3-shawn.guo@linaro.org> (raw)
In-Reply-To: <20211202122122.23548-1-shawn.guo@linaro.org>

It adds DT binding support for Qualcomm MPM interrupt controller.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 .../interrupt-controller/qcom,mpm.yaml        | 72 +++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/qcom,mpm.yaml

diff --git a/Documentation/devicetree/bindings/interrupt-controller/qcom,mpm.yaml b/Documentation/devicetree/bindings/interrupt-controller/qcom,mpm.yaml
new file mode 100644
index 000000000000..22e87fe2eb8e
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/qcom,mpm.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/qcom,mpm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcom MPM Interrupt Controller
+
+maintainers:
+  - Shawn Guo <shawn.guo@linaro.org>
+
+description:
+  Qualcomm Technologies Inc. SoCs based on the RPM architecture have a
+  MSM Power Manager (MPM) that is in always-on domain. In addition to managing
+  resources during sleep, the hardware also has an interrupt controller that
+  monitors the interrupts when the system is asleep, wakes up the APSS when
+  one of these interrupts occur and replays it to GIC interrupt controller
+  after GIC becomes operational.
+
+allOf:
+  - $ref: /schemas/interrupt-controller.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: qcom,qcm2290-mpm
+
+  reg:
+    maxItems: 1
+    description:
+      Specifies the base address and size of vMPM registers in RPM MSG RAM.
+
+  interrupts:
+    maxItems: 1
+    description:
+      Specify the IRQ used by RPM to wakeup APSS.
+
+  mboxes:
+    maxItems: 1
+    description:
+      Specify the mailbox used to notify RPM for writing vMPM registers.
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 2
+    description:
+      The first cell is the MPM pin number for the interrupt, and the second
+      is the trigger type.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - mboxes
+  - interrupt-controller
+  - '#interrupt-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    mpm: interrupt-controller@45f01b8 {
+        compatible = "qcom,qcm2290-mpm";
+        interrupts = <GIC_SPI 197 IRQ_TYPE_EDGE_RISING>;
+        reg = <0x45f01b8 0x1000>;
+        mboxes = <&apcs_glb 1>;
+        interrupt-controller;
+        #interrupt-cells = <2>;
+        interrupt-parent = <&intc>;
+    };
-- 
2.17.1


  parent reply	other threads:[~2021-12-02 12:22 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-02 12:21 [PATCH v3 0/3] Add Qualcomm MPM irqchip driver support Shawn Guo
2021-12-02 12:21 ` [PATCH v3 1/3] irqchip: Pass platform_device pointer to init_cb Shawn Guo
2021-12-02 17:52   ` Florian Fainelli
2021-12-02 19:10     ` Marc Zyngier
2021-12-02 21:44       ` Florian Fainelli
2021-12-06  6:40       ` Shawn Guo
2021-12-06  8:29         ` Marc Zyngier
2021-12-06  6:35     ` Shawn Guo
2021-12-02 12:21 ` Shawn Guo [this message]
2021-12-02 12:21 ` [PATCH v3 3/3] irqchip: Add Qualcomm MPM controller driver Shawn Guo
2021-12-03  0:00   ` kernel test robot
2021-12-03  0:00     ` kernel test robot
2021-12-06  9:46   ` Marc Zyngier
2021-12-06 13:15     ` Shawn Guo
2021-12-06 13:48       ` Marc Zyngier
2021-12-07  9:48         ` Shawn Guo
2021-12-07 10:16           ` Marc Zyngier
2021-12-08 10:04             ` Shawn Guo

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