linux-kernel - [PATCH] arm64: dts: allwinner: h616: rg35xx add missing regulator-ramp-delay

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Message-ID: <20241203203824.23306-1-simons.philippe@gmail.com>
Date: Tue,  3 Dec 2024 21:38:23 +0100
From: Philippe Simons <simons.philippe@...il.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Samuel Holland <samuel@...lland.org>,
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Allwinner sunXi SoC support),
	linux-sunxi@...ts.linux.dev (open list:ARM/Allwinner sunXi SoC support),
	linux-kernel@...r.kernel.org (open list)
Cc: Philippe Simons <simons.philippe@...il.com>
Subject: [PATCH] arm64: dts: allwinner: h616: rg35xx add missing regulator-ramp-delay

AXP datasheet says that ramp delay is 15.625 us/step,
which is 10mV in our case.

add missing regulator-ramp-delay to dcdc regulators accordingly

Signed-off-by: Philippe Simons <simons.philippe@...il.com>
---
 .../boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts    | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts
index 80ccab7b5..b6e76a804 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h700-anbernic-rg35xx-2024.dts
@@ -238,6 +238,7 @@ reg_dcdc1: dcdc1 {
 				regulator-always-on;
 				regulator-min-microvolt = <900000>;
 				regulator-max-microvolt = <1160000>;
+				regulator-ramp-delay = <640>;
 				regulator-name = "vdd-cpu";
 			};
 
@@ -245,6 +246,7 @@ reg_dcdc2: dcdc2 {
 				regulator-always-on;
 				regulator-min-microvolt = <940000>;
 				regulator-max-microvolt = <940000>;
+				regulator-ramp-delay = <640>;
 				regulator-name = "vdd-gpu-sys";
 			};
 
@@ -252,6 +254,7 @@ reg_dcdc3: dcdc3 {
 				regulator-always-on;
 				regulator-min-microvolt = <1100000>;
 				regulator-max-microvolt = <1100000>;
+				regulator-ramp-delay = <640>;
 				regulator-name = "vdd-dram";
 			};
 
-- 
2.47.1