[PATCH v5 05/13] arm64: dts: mediatek: mt7988: add cci node
From: Frank Wunderlich <hidden>
Date: 2025-06-20 08:36:20
Also in:
linux-arm-kernel, linux-devicetree, linux-mediatek, linux-pm, lkml
Subsystem:
arm/mediatek soc support, the rest · Maintainers:
Matthias Brugger, AngeloGioacchino Del Regno, Linus Torvalds
From: Frank Wunderlich <redacted> Add cci devicetree node for cpu frequency scaling. Signed-off-by: Daniel Golle <daniel@makrotopia.org> Signed-off-by: Frank Wunderlich <redacted> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> --- v3: - add mt7988-cci compatible as suggested by angelo --- arch/arm64/boot/dts/mediatek/mt7988a.dtsi | 33 +++++++++++++++++++++++ 1 file changed, 33 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt7988a.dtsi b/arch/arm64/boot/dts/mediatek/mt7988a.dtsi
index c46b31f8d653..560ec86dbec0 100644
--- 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,mt7988-cci", "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 @@ cpu0: cpu@0 { <&topckgen CLK_TOP_XTAL>; clock-names = "cpu", "intermediate"; operating-points-v2 = <&cluster0_opp>; + mediatek,cci = <&cci>; }; cpu1: cpu@1 {
@@ -36,6 +66,7 @@ cpu1: cpu@1 { <&topckgen CLK_TOP_XTAL>; clock-names = "cpu", "intermediate"; operating-points-v2 = <&cluster0_opp>; + mediatek,cci = <&cci>; }; cpu2: cpu@2 {
@@ -47,6 +78,7 @@ cpu2: cpu@2 { <&topckgen CLK_TOP_XTAL>; clock-names = "cpu", "intermediate"; operating-points-v2 = <&cluster0_opp>; + mediatek,cci = <&cci>; }; cpu3: cpu@3 {
@@ -58,6 +90,7 @@ cpu3: cpu@3 { <&topckgen CLK_TOP_XTAL>; clock-names = "cpu", "intermediate"; operating-points-v2 = <&cluster0_opp>; + mediatek,cci = <&cci>; }; cluster0_opp: opp-table-0 {
--
2.43.0