linux-kernel - [PATCH V2 5/6] arm64: dts: qcom: ipq9574: Add RPM related nodes

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Message-ID: <20230217142030.16012-6-quic_devipriy@quicinc.com>
Date:   Fri, 17 Feb 2023 19:50:29 +0530
From:   Devi Priya <quic_devipriy@...cinc.com>
To:     <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <lgirdwood@...il.com>,
        <broonie@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>,
        <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
CC:     <quic_srichara@...cinc.com>, <quic_gokulsri@...cinc.com>,
        <quic_sjaganat@...cinc.com>, <quic_kathirav@...cinc.com>,
        <quic_arajkuma@...cinc.com>, <quic_anusha@...cinc.com>,
        <quic_ipkumar@...cinc.com>
Subject: [PATCH V2 5/6] arm64: dts: qcom: ipq9574: Add RPM related nodes

Add RPM Glink, RPM message RAM and SMPA1 regulator
nodes to support frequency scaling on IPQ9574

Signed-off-by: Devi Priya <quic_devipriy@...cinc.com>
---
 Changes in V2:
	- Splitted the RPM and CPU Freq changes to individual patches
	- Moved the regulators node to Board DT
	- Dropped the regulator-always-on property
	- Updated the compatible in regulators node with the existing
	  mp5496 compatible

 arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dts | 11 +++++++++++
 arch/arm64/boot/dts/qcom/ipq9574.dtsi        | 17 +++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dts b/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dts
index 21b53f34ce84..8a6caaeb0c4b 100644
--- a/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dts
+++ b/arch/arm64/boot/dts/qcom/ipq9574-al02-c7.dts
@@ -57,6 +57,17 @@
 	status = "okay";
 };
 
+&rpm_requests {
+	regulators {
+		compatible = "qcom,rpm-mp5496-regulators";
+
+		ipq9574_s1: s1 {
+			regulator-min-microvolt = <587500>;
+			regulator-max-microvolt = <1075000>;
+		};
+	};
+};
+
 &sdhc_1 {
 	pinctrl-0 = <&sdc_default_state>;
 	pinctrl-names = "default";
diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
index d20f3c7383f5..2f300cbab93e 100644
--- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
@@ -133,6 +133,11 @@
 		#size-cells = <2>;
 		ranges;
 
+		rpm_msg_ram: rpm@...00 {
+			reg = <0x0 0x00060000 0x0 0x6000>;
+			no-map;
+		};
+
 		tz_region: tz@...00000 {
 			reg = <0x0 0x4a600000 0x0 0x400000>;
 			no-map;
@@ -768,6 +773,18 @@
 		};
 	};
 
+	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: glink-channel {
+			compatible = "qcom,rpm-ipq9574";
+			qcom,glink-channels = "rpm_requests";
+		};
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 2 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
-- 
2.17.1