linux-kernel - Re: [PATCH v3 15/21] ARM: dts: imx6ull-colibri: reduce v

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Message-ID: <b1d05badaf2bfbb09f67be76ccc5a98105222c9f.camel@toradex.com>
Date:   Fri, 9 Aug 2019 15:40:09 +0000
From:   Marcel Ziswiler <marcel.ziswiler@...adex.com>
To:     Max Krummenacher <max.krummenacher@...adex.com>,
        "stefan@...er.ch" <stefan@...er.ch>,
        Philippe Schenker <philippe.schenker@...adex.com>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "michal.vokac@...ft.com" <michal.vokac@...ft.com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "festevam@...il.com" <festevam@...il.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>
CC:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-imx@....com" <linux-imx@....com>
Subject: Re: [PATCH v3 15/21] ARM: dts: imx6ull-colibri: reduce v_batt current
 in power off

On Wed, 2019-08-07 at 08:26 +0000, Philippe Schenker wrote:
> From: Max Krummenacher <max.krummenacher@...adex.com>
> 
> Reduce the current drawn from VCC_BATT when the main power on the 3V3
> pins to the module are switched off.
> 
> This switches off SoC internal pull resistors which are provided on
> the
> module for TAMPER7 and TAMPER9 SoC pin and switches on a pull down
> instead of a pullup for the USBC_DET module pin (TAMPER2).
> 
> Signed-off-by: Max Krummenacher <max.krummenacher@...adex.com>
> Signed-off-by: Philippe Schenker <philippe.schenker@...adex.com>

Acked-by: Marcel Ziswiler <marcel.ziswiler@...adex.com>

> ---
> 
> Changes in v3: None
> Changes in v2: None
> 
>  arch/arm/boot/dts/imx6ull-colibri.dtsi | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/imx6ull-colibri.dtsi
> b/arch/arm/boot/dts/imx6ull-colibri.dtsi
> index 1019ce69a242..1f112ec55e5c 100644
> --- a/arch/arm/boot/dts/imx6ull-colibri.dtsi
> +++ b/arch/arm/boot/dts/imx6ull-colibri.dtsi
> @@ -533,19 +533,19 @@
>  
>  	pinctrl_snvs_ad7879_int: snvs-ad7879-int-grp { /* TOUCH
> Interrupt */
>  		fsl,pins = <
> -			MX6ULL_PAD_SNVS_TAMPER7__GPIO5_IO07	0x1b0
> b0
> +			MX6ULL_PAD_SNVS_TAMPER7__GPIO5_IO07	0x100
> b0
>  		>;
>  	};
>  
>  	pinctrl_snvs_reg_sd: snvs-reg-sd-grp {
>  		fsl,pins = <
> -			MX6ULL_PAD_SNVS_TAMPER9__GPIO5_IO09	0x400
> 1b8b0
> +			MX6ULL_PAD_SNVS_TAMPER9__GPIO5_IO09	0x400
> 100b0
>  		>;
>  	};
>  
>  	pinctrl_snvs_usbc_det: snvs-usbc-det-grp {
>  		fsl,pins = <
> -			MX6ULL_PAD_SNVS_TAMPER2__GPIO5_IO02	0x1b0
> b0
> +			MX6ULL_PAD_SNVS_TAMPER2__GPIO5_IO02	0x130
> b0
>  		>;
>  	};