linux-kernel - [PATCH v3 6/9] ARM: mstar: Add OPP table for infinity

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Date:   Fri, 21 Jan 2022 20:35:41 +0100
From:   Romain Perier <romain.perier@...il.com>
To:     Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-clk@...r.kernel.org,
        Arnd Bergmann <arnd@...db.de>, Daniel Palmer <daniel@...f.com>,
        Romain Perier <romain.perier@...il.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Willy Tarreau <w@....eu>
Subject: [PATCH v3 6/9] ARM: mstar: Add OPP table for infinity

From: Daniel Palmer <daniel@...f.com>

Add an OPP table for the inifinity chips so
that cpu frequency scaling can happen.

Co-authored-by: Willy Tarreau <w@....eu>
Signed-off-by: Daniel Palmer <daniel@...f.com>
---
 arch/arm/boot/dts/mstar-infinity.dtsi | 34 +++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/arch/arm/boot/dts/mstar-infinity.dtsi b/arch/arm/boot/dts/mstar-infinity.dtsi
index 0bee517797f4..441a917b88ba 100644
--- a/arch/arm/boot/dts/mstar-infinity.dtsi
+++ b/arch/arm/boot/dts/mstar-infinity.dtsi
@@ -8,6 +8,40 @@
 
 #include <dt-bindings/gpio/msc313-gpio.h>
 
+/ {
+	cpu0_opp_table: opp_table0 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp-240000000 {
+			opp-hz = /bits/ 64 <240000000>;
+			opp-microvolt = <1000000>;
+			clock-latency-ns = <300000>;
+		};
+
+		opp-400000000 {
+			opp-hz = /bits/ 64 <400000000>;
+			opp-microvolt = <1000000>;
+			clock-latency-ns = <300000>;
+		};
+		opp-600000000 {
+			opp-hz = /bits/ 64 <600000000>;
+			opp-microvolt = <1000000>;
+			clock-latency-ns = <300000>;
+		};
+
+		opp-800000000 {
+			opp-hz = /bits/ 64 <800000000>;
+			opp-microvolt = <1000000>;
+			clock-latency-ns = <300000>;
+		};
+	};
+};
+
+&cpu0 {
+	operating-points-v2 = <&cpu0_opp_table>;
+};
+
 &imi {
 	reg = <0xa0000000 0x16000>;
 };
-- 
2.34.1