linux-kernel - Re: [PATCH 3/9] regulator: mt6380: Add support for MT6380

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Date:   Fri, 14 Jul 2017 16:14:39 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Sean Wang <sean.wang@...iatek.com>
Cc:     mark.rutland@....com, jamesjj.liao@...iatek.com,
        devicetree@...r.kernel.org, chenglin.xu@...iatek.com,
        lgirdwood@...il.com, henryc.chen@...iatek.com,
        linux-kernel@...r.kernel.org, robh+dt@...nel.org,
        linux-mediatek@...ts.infradead.org, matthias.bgg@...il.com,
        chen.zhong@...iatek.com
Subject: Re: [PATCH 3/9] regulator: mt6380: Add support for MT6380

On Fri, Jul 14, 2017 at 11:06:08PM +0800, Sean Wang wrote:

> We usually want to use /sys/class/regulator/regulator.*/status to get
> actual status from hardware, but if we remove the get_status(), the
> status entry under sysfs would be gone. So could I keep the get_status
> callback in this driver ?

If the device doesn't support physical status readback it shouldn't have
a get_status() callback.  

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