lede/target/linux/mediatek/patches-6.12/176-arm64-dts-mediatek-mt7988-add-cci-node.patch
2025-05-28 14:26:28 +08:00

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From patchwork Sun May 11 14:19:22 2025
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X-Patchwork-Submitter: Frank Wunderlich <linux@fw-web.de>
X-Patchwork-Id: 14084106
From: Frank Wunderlich <linux@fw-web.de>
To: Andrew Lunn <andrew@lunn.ch>,
Vladimir Oltean <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Subject: [PATCH v1 06/14] arm64: dts: mediatek: mt7988: add cci node
Date: Sun, 11 May 2025 16:19:22 +0200
Message-ID: <20250511141942.10284-7-linux@fw-web.de>
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Cc: devicetree@vger.kernel.org, Landen Chao <Landen.Chao@mediatek.com>,
=?utf-8?b?QXLEsW7DpyDDnE5BTA==?= <arinc.unal@arinc9.com>,
netdev@vger.kernel.org, Sean Wang <sean.wang@mediatek.com>,
Daniel Golle <daniel@makrotopia.org>, linux-kernel@vger.kernel.org,
DENG Qingfang <dqfext@gmail.com>, linux-mediatek@lists.infradead.org,
Lorenzo Bianconi <lorenzo@kernel.org>, linux-arm-kernel@lists.infradead.org,
Felix Fietkau <nbd@nbd.name>
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linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org
From: Frank Wunderlich <frank-w@public-files.de>
Add cci devicetree node for cpu frequency scaling.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
---
arch/arm64/boot/dts/mediatek/mt7988a.dtsi | 33 +++++++++++++++++++++++
1 file changed, 33 insertions(+)
--- a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
@@ -12,6 +12,35 @@
#address-cells = <2>;
#size-cells = <2>;
+ cci: cci {
+ compatible = "mediatek,mt8183-cci";
+ clocks = <&mcusys CLK_MCU_BUS_DIV_SEL>,
+ <&topckgen CLK_TOP_XTAL>;
+ clock-names = "cci", "intermediate";
+ operating-points-v2 = <&cci_opp>;
+ };
+
+ cci_opp: opp-table-cci {
+ compatible = "operating-points-v2";
+ opp-shared;
+ opp-480000000 {
+ opp-hz = /bits/ 64 <480000000>;
+ opp-microvolt = <850000>;
+ };
+ opp-660000000 {
+ opp-hz = /bits/ 64 <660000000>;
+ opp-microvolt = <850000>;
+ };
+ opp-900000000 {
+ opp-hz = /bits/ 64 <900000000>;
+ opp-microvolt = <850000>;
+ };
+ opp-1080000000 {
+ opp-hz = /bits/ 64 <1080000000>;
+ opp-microvolt = <900000>;
+ };
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -25,6 +54,7 @@
<&topckgen CLK_TOP_XTAL>;
clock-names = "cpu", "intermediate";
operating-points-v2 = <&cluster0_opp>;
+ mediatek,cci = <&cci>;
};
cpu1: cpu@1 {
@@ -36,6 +66,7 @@
<&topckgen CLK_TOP_XTAL>;
clock-names = "cpu", "intermediate";
operating-points-v2 = <&cluster0_opp>;
+ mediatek,cci = <&cci>;
};
cpu2: cpu@2 {
@@ -47,6 +78,7 @@
<&topckgen CLK_TOP_XTAL>;
clock-names = "cpu", "intermediate";
operating-points-v2 = <&cluster0_opp>;
+ mediatek,cci = <&cci>;
};
cpu3: cpu@3 {
@@ -58,6 +90,7 @@
<&topckgen CLK_TOP_XTAL>;
clock-names = "cpu", "intermediate";
operating-points-v2 = <&cluster0_opp>;
+ mediatek,cci = <&cci>;
};
cluster0_opp: opp-table-0 {