linux-kernel - Re: [PATCH 7/9] arm64: dts: imx8mn-bsh-smm-s2-common: Set minimum value for VDD

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <a44cad65-1f23-43cd-83b7-bc128e9f858f@gmail.com>
Date: Thu, 15 May 2025 12:20:29 +0300
From: Matti Vaittinen <mazziesaccount@...il.com>
To: Dario Binacchi <dario.binacchi@...rulasolutions.com>,
 linux-kernel@...r.kernel.org
Cc: Simon Holesch <simon.holesch@...g.com>,
 Karthikdatt Anantharamrao <karthikdatt.anantharamrao@...bosch.com>,
 michael@...rulasolutions.com, linux-amarula@...rulasolutions.com,
 Wolfgang Birkner <wolfgang.birkner@...g.com>,
 Conor Dooley <conor+dt@...nel.org>, Fabio Estevam <festevam@...il.com>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Rob Herring <robh@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>,
 Shawn Guo <shawnguo@...nel.org>, devicetree@...r.kernel.org,
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 7/9] arm64: dts: imx8mn-bsh-smm-s2-common: Set minimum
 value for VDD_3V3

On 14/05/2025 11:25, Dario Binacchi wrote:
> From: Wolfgang Birkner <wolfgang.birkner@...g.com>
> 
> Buck4 is called Buck6 in the BD71847 datasheet. This buck supports
> 2.6...3.3V. Set the minimum allowed value.

Same comment as for 6/9. Please provide better rationale than the PMIC's 
limits.

> 
> Signed-off-by: Wolfgang Birkner <wolfgang.birkner@...g.com>
> Signed-off-by: Dario Binacchi <dario.binacchi@...rulasolutions.com>
> ---
> 
>   arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
> index 81fa0a8767e2..04112a83b1d3 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
> @@ -144,7 +144,7 @@ buck3_reg: BUCK3 {
>   			buck4_reg: BUCK4 {
>   				/* PMIC_BUCK6 - VDD_3V3 */
>   				regulator-name = "buck4";
> -				regulator-min-microvolt = <3000000>;
> +				regulator-min-microvolt = <2600000>;
>   				regulator-max-microvolt = <3300000>;
>   				regulator-boot-on;
>   				regulator-always-on;

Yours,
	-- Matti