[tip:,irq/core] dt-bindings: interrupt-controller: mpm: Pass MSG RAM slice through phandle
Commit Message
The following commit has been merged into the irq/core branch of tip:
Commit-ID: ca596295f4c9ec803d3379635ad175897993f121
Gitweb: https://git.kernel.org/tip/ca596295f4c9ec803d3379635ad175897993f121
Author: Konrad Dybcio <konrad.dybcio@linaro.org>
AuthorDate: Mon, 27 Nov 2023 16:52:12 +01:00
Committer: Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Tue, 12 Dec 2023 15:40:42 +01:00
dt-bindings: interrupt-controller: mpm: Pass MSG RAM slice through phandle
Due to the wild nature of the Qualcomm RPM Message RAM, the kernel can't
really use 'reg' to point to the MPM's slice of Message RAM without cutting
into an already-defined RPM MSG RAM node used for GLINK and SMEM.
Document passing the register space as a slice of SRAM through the
qcom,rpm-msg-ram property. This also makes 'reg' deprecated.
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230328-topic-msgram_mpm-v7-1-6ee2bfeaac2c@linaro.org
---
Documentation/devicetree/bindings/interrupt-controller/qcom,mpm.yaml | 52 +++++++++++++++++++++++++++++++++++-----------------
1 file changed, 35 insertions(+), 17 deletions(-)
@@ -29,6 +29,12 @@ properties:
maxItems: 1
description:
Specifies the base address and size of vMPM registers in RPM MSG RAM.
+ deprecated: true
+
+ qcom,rpm-msg-ram:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ Phandle to the APSS MPM slice of the RPM Message RAM
interrupts:
maxItems: 1
@@ -64,33 +70,45 @@ properties:
required:
- compatible
- - reg
- interrupts
- mboxes
- interrupt-controller
- '#interrupt-cells'
- qcom,mpm-pin-count
- qcom,mpm-pin-map
+ - qcom,rpm-msg-ram
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
- mpm: interrupt-controller@45f01b8 {
- compatible = "qcom,mpm";
- interrupts = <GIC_SPI 197 IRQ_TYPE_EDGE_RISING>;
- reg = <0x45f01b8 0x1000>;
- mboxes = <&apcs_glb 1>;
- interrupt-controller;
- #interrupt-cells = <2>;
- interrupt-parent = <&intc>;
- qcom,mpm-pin-count = <96>;
- qcom,mpm-pin-map = <2 275>,
- <5 296>,
- <12 422>,
- <24 79>,
- <86 183>,
- <90 260>,
- <91 260>;
+
+ remoteproc-rpm {
+ compatible = "qcom,msm8998-rpm-proc", "qcom,rpm-proc";
+
+ glink-edge {
+ compatible = "qcom,glink-rpm";
+
+ interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>;
+ qcom,rpm-msg-ram = <&rpm_msg_ram>;
+ mboxes = <&apcs_glb 0>;
+ };
+
+ mpm: interrupt-controller {
+ compatible = "qcom,mpm";
+ qcom,rpm-msg-ram = <&apss_mpm>;
+ interrupts = <GIC_SPI 197 IRQ_TYPE_EDGE_RISING>;
+ mboxes = <&apcs_glb 1>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&intc>;
+ qcom,mpm-pin-count = <96>;
+ qcom,mpm-pin-map = <2 275>,
+ <5 296>,
+ <12 422>,
+ <24 79>,
+ <86 183>,
+ <91 260>;
+ };
};