linux-kernel - Re: [PATCH 8/9] arm64: dts: allwinner: pinebook: Fix backlight regulator

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Message-ID: <20200121090757.y4du3fg2jdwz6itc@gilmour.lan>
Date:   Tue, 21 Jan 2020 10:07:57 +0100
From:   Maxime Ripard <mripard@...nel.org>
To:     Samuel Holland <samuel@...lland.org>
Cc:     Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...glegroups.com
Subject: Re: [PATCH 8/9] arm64: dts: allwinner: pinebook: Fix backlight
 regulator

On Sun, Jan 19, 2020 at 10:31:03AM -0600, Samuel Holland wrote:
> The output from the backlight regulator is labeled as "VBKLT" in the
> schematic. Using the equation and resistor values from the schematic,
> the output is approximately 18V, not 3.3V. Since the regulator in use
> (SS6640STR) is a boost regulator powered by PS (battery or AC input),
> which are both >3.3V, the output could not be 3.3V anyway.
>
> Signed-off-by: Samuel Holland <samuel@...lland.org>

Applied, thanks!
Maxime

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