linux-kernel - [PATCH 2/2] arm64: dts: renesas: ulcb: Add cpu-supply property to a57

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Message-Id: <20210326105009.1574424-3-geert+renesas@glider.be>
Date:   Fri, 26 Mar 2021 11:50:09 +0100
From:   Geert Uytterhoeven <geert+renesas@...der.be>
To:     Magnus Damm <magnus.damm@...il.com>
Cc:     Dien Pham <dien.pham.ry@...esas.com>,
        Yusuke Goda <yusuke.goda.sx@...esas.com>,
        Takeshi Kihara <takeshi.kihara.df@...esas.com>,
        linux-renesas-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert+renesas@...der.be>
Subject: [PATCH 2/2] arm64: dts: renesas: ulcb: Add cpu-supply property to a57_0 node

From: Yusuke Goda <yusuke.goda.sx@...esas.com>

Add the cpu-supply property to the a57_0 node, so Dynamic Voltage and
Frequency Scaling (DVFS) can change the CPU core voltage.

Signed-off-by: Yusuke Goda <yusuke.goda.sx@...esas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@...esas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
---
 arch/arm64/boot/dts/renesas/ulcb.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/ulcb.dtsi b/arch/arm64/boot/dts/renesas/ulcb.dtsi
index 14b211f357f8894a..1f177af3eb9dfa37 100644
--- a/arch/arm64/boot/dts/renesas/ulcb.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb.dtsi
@@ -138,6 +138,10 @@ x23_clk: x23-clock {
 	};
 };
 
+&a57_0 {
+	cpu-supply = <&dvfs>;
+};
+
 &audio_clk_a {
 	clock-frequency = <22579200>;
 };
-- 
2.25.1