linux-kernel - Re: [PATCH V4 2/2] iio: light: isl29018: add optional vdd/vdda regulator operation support

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Date:   Tue, 11 Dec 2018 13:02:00 +0800
From:   Phil Reid <preid@...ctromag.com.au>
To:     Anson Huang <anson.huang@....com>,
        "jic23@...nel.org" <jic23@...nel.org>,
        "knaack.h@....de" <knaack.h@....de>,
        "lars@...afoo.de" <lars@...afoo.de>,
        "pmeerw@...erw.net" <pmeerw@...erw.net>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "linux-iio@...r.kernel.org" <linux-iio@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "festevam@...il.com" <festevam@...il.com>
Cc:     dl-linux-imx <linux-imx@....com>
Subject: Re: [PATCH V4 2/2] iio: light: isl29018: add optional vdd/vdda
 regulator operation support

On 11/12/2018 12:29 pm, Anson Huang wrote:
>> G'day Anson,
>>
>> Just pulled up the datasheet for this chip.
>>
>> The absolute max for Vdda is speced as Vddd ±0.5 With a note that Vdda
>> should be externally shorted to Vddd.
> The data sheet says vdda should be connected to vdd externally, then I think we should just
> use one regulator vdd, then it will be much easier for the driver, what do you think?
> 

Yes I think that makes sense.



-- 
Regards
Phil