linux-kernel - Re: [PATCH 8/9] regulator: mt6358: Add output voltage fine tuning to variable LDOs

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Message-ID: <33c2f13a-294c-fc69-55a3-2a7aef26f954@collabora.com>
Date:   Fri, 9 Jun 2023 12:03:12 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Chen-Yu Tsai <wenst@...omium.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 8/9] regulator: mt6358: Add output voltage fine tuning to
 variable LDOs

Il 09/06/23 10:30, Chen-Yu Tsai ha scritto:
> Some of the LDO regulators in the MT6358/MT6366 have sparsely populated
> voltage tables, supported by custom get/set operators. While it works,
> it requires more code and an extra field to store the lookup table.
> These LDOs also have fine voltage calibration settings that can slightly
> boost the output voltage from 0 mV to 100 mV, in 10 mV increments.
> 
> These combined could be modeled as a pickable set of linear ranges. The
> coarse voltage setting is modeled as the range selector, while each
> range has 11 selectors, starting from the range's base voltage, up to
> +100 mV, in 10mV increments.
> 

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>