linux-kernel - Re: [PATCH v4 15/21] ARM: dts: imx6ull-colibri: reduce v

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Date:   Thu, 15 Aug 2019 07:55:40 +0000
From:   Oleksandr Suvorov <oleksandr.suvorov@...adex.com>
To:     Philippe Schenker <philippe.schenker@...adex.com>
CC:     Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        Max Krummenacher <max.krummenacher@...adex.com>,
        "stefan@...er.ch" <stefan@...er.ch>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Michal Vokáč <michal.vokac@...ft.com>,
        Fabio Estevam <festevam@...il.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        Sascha Hauer <s.hauer@...gutronix.de>
Subject: Re: [PATCH v4 15/21] ARM: dts: imx6ull-colibri: reduce v_batt current
 in power off

On Mon, Aug 12, 2019 at 5:24 PM Philippe Schenker
<philippe.schenker@...adex.com> 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>

Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@...adex.com>

>
> ---
>
> Changes in v4:
> - Add Marcel Ziswiler's Ack
>
> 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     0x1b0b0
> +                       MX6ULL_PAD_SNVS_TAMPER7__GPIO5_IO07     0x100b0
>                 >;
>         };
>
>         pinctrl_snvs_reg_sd: snvs-reg-sd-grp {
>                 fsl,pins = <
> -                       MX6ULL_PAD_SNVS_TAMPER9__GPIO5_IO09     0x4001b8b0
> +                       MX6ULL_PAD_SNVS_TAMPER9__GPIO5_IO09     0x400100b0
>                 >;
>         };
>
>         pinctrl_snvs_usbc_det: snvs-usbc-det-grp {
>                 fsl,pins = <
> -                       MX6ULL_PAD_SNVS_TAMPER2__GPIO5_IO02     0x1b0b0
> +                       MX6ULL_PAD_SNVS_TAMPER2__GPIO5_IO02     0x130b0
>                 >;
>         };
>
> --
> 2.22.0
>


--
Best regards
Oleksandr Suvorov

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