linux-kernel - [PATCH V5 1/3] arm64: dts: qcom: ipq9574: Add RPM related nodes

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Date:   Wed, 17 May 2023 22:55:25 +0530
From:   Devi Priya <quic_devipriy@...cinc.com>
To:     <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     <quic_srichara@...cinc.com>, <quic_sjaganat@...cinc.com>,
        <quic_kathirav@...cinc.com>, <quic_arajkuma@...cinc.com>,
        <quic_anusha@...cinc.com>
Subject: [PATCH V5 1/3] arm64: dts: qcom: ipq9574: Add RPM related nodes

Add RPM Glink & RPM message RAM nodes to support frequency scaling
on IPQ9574.

Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Co-developed-by: Praveenkumar I <quic_ipkumar@...cinc.com>
Signed-off-by: Praveenkumar I <quic_ipkumar@...cinc.com>
Signed-off-by: Devi Priya <quic_devipriy@...cinc.com>
---
 Changes in V5:
	- No change

 arch/arm64/boot/dts/qcom/ipq9574.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
index adc3fefcb469..31244b1d8c25 100644
--- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
@@ -110,12 +110,29 @@
 		};
 	};
 
+	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>;
+
+		rpm_requests: rpm-requests {
+			compatible = "qcom,rpm-ipq9574";
+			qcom,glink-channels = "rpm_requests";
+		};
+	};
+
 	soc: soc@0 {
 		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges = <0 0 0 0xffffffff>;
 
+		rpm_msg_ram: sram@...00 {
+			compatible = "qcom,rpm-msg-ram";
+			reg = <0x00060000 0x6000>;
+		};
+
 		rng: rng@...00 {
 			compatible = "qcom,prng-ee";
 			reg = <0x000e3000 0x1000>;
-- 
2.17.1