[PATCH 0/2] arm64: dts: renesas: Add cpu-supply properties for DVFS

[PATCH 0/2] arm64: dts: renesas: Add cpu-supply properties for DVFS

[Geert Uytterhoeven]

	Hi all,

This patch series adds the cpu-supply properties to the a57_0 nodes on
the Salvator-X(S) and ULCB development boards, so Dynamic Voltage and
Frequency Scaling (DVFS) can change the CPU core voltages.
This is a prerequisite for enabling CPU boost modes.

To be queued in renesas-devel for 5.13.

Dien Pham (1):
  arm64: dts: renesas: salvator-common: Add cpu-supply property to a57_0
    node

Yusuke Goda (1):
  arm64: dts: renesas: ulcb: Add cpu-supply property to a57_0 node

 arch/arm64/boot/dts/renesas/salvator-common.dtsi | 4 ++++
 arch/arm64/boot/dts/renesas/ulcb.dtsi            | 4 ++++
 2 files changed, 8 insertions(+)

-- 
2.25.1

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

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[PATCH 1/2] arm64: dts: renesas: salvator-common: Add cpu-supply property to a57_0 node

[Geert Uytterhoeven]

From: Dien Pham <dien.pham.ry@renesas.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: Dien Pham <dien.pham.ry@renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
 arch/arm64/boot/dts/renesas/salvator-common.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
index 581667c9fa748191..20243ffde649876d 100644
--- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
@@ -326,6 +326,10 @@ x23_clk: x23-clock {
 	};
 };
 
+&a57_0 {
+	cpu-supply = <&dvfs>;
+};
+
 &audio_clk_a {
 	clock-frequency = <22579200>;
 };
-- 
2.25.1


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[PATCH 2/2] arm64: dts: renesas: ulcb: Add cpu-supply property to a57_0 node

[Geert Uytterhoeven]

From: Yusuke Goda <yusuke.goda.sx@renesas.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@renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.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


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