linux-kernel - Re: [PATCH 1/3] ASoC: mediatek: mt8188-mt6359: support dynamic pinctrl

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Message-ID: <3c6f6ca4-c563-525e-e773-3539678956ae@collabora.com>
Date:   Mon, 31 Jul 2023 15:35:14 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Trevor Wu <trevor.wu@...iatek.com>, broonie@...nel.org,
        lgirdwood@...il.com, tiwai@...e.com, perex@...ex.cz,
        matthias.bgg@...il.com
Cc:     alsa-devel@...a-project.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] ASoC: mediatek: mt8188-mt6359: support dynamic
 pinctrl

Il 25/07/23 05:53, Trevor Wu ha scritto:
> To avoid power leakage, it is recommended to replace the default pinctrl
> state with dynamic pinctrl since certain audio pinmux functions can
> remain in a HIGH state even when audio is disabled. Linking pinctrl with
> DAPM using SND_SOC_DAPM_PINCTRL will ensure that audio pins remain in
> GPIO mode by default and only switch to an audio function when necessary.
> 
> Signed-off-by: Trevor Wu <trevor.wu@...iatek.com>

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