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Date:   Tue, 23 Apr 2019 12:32:22 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     megous@...ous.com
Cc:     linux-sunxi <linux-sunxi@...glegroups.com>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Mark Rutland <mark.rutland@....com>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S. Miller" <davem@...emloft.net>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        "open list:DRM PANEL DRIVERS" <dri-devel@...ts.freedesktop.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>,
        linux-stm32@...md-mailman.stormreply.com,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH v4 4/9] pinctrl: sunxi: Support I/O bias voltage setting
 on H6

On Sat, Apr 13, 2019 at 6:54 PM <megous@...ous.com> wrote:

> From: Ondrej Jirman <megous@...ous.com>
>
> H6 SoC has a "pio group withstand voltage mode" register (datasheet
> description), that needs to be used to select either 1.8V or 3.3V I/O mode,
> based on what voltage is powering the respective pin banks and is thus used
> for I/O signals.
>
> Add support for configuring this register according to the voltage of the
> pin bank regulator (if enabled).
>
> This is similar to the support for I/O bias voltage setting patch for A80
> and the same concerns apply. See:
>
>   commit 402bfb3c1352 ("Support I/O bias voltage setting on A80")
>
> Signed-off-by: Ondrej Jirman <megous@...ous.com>
> Acked-by: Maxime Ripard <maxime.ripard@...tlin.com>

This patch applied to the pinctrl tree for v5.2.

Yours,
Linus Walleij

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