linux-kernel - Re: [PATCH 3/6] arm64: dts: meson-sm1-odroid-c4: fix hub

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Date:   Fri, 4 Jun 2021 12:19:28 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc:     khilman@...libre.com, jbrunet@...libre.com,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        tobetter@...il.com
Subject: Re: [PATCH 3/6] arm64: dts: meson-sm1-odroid-c4: fix hub_5v regulator
 gpio

On 04/06/2021 12:13, Martin Blumenstingl wrote:
> Hi Neil,
> 
> On Fri, Jun 4, 2021 at 11:43 AM Neil Armstrong <narmstrong@...libre.com> wrote:
> [...]
>> So I'll add:
>> +&vcc_5v {
>> +       gpio = <&gpio GPIOH_8 GPIO_OPEN_DRAIN>;
>> +       enable-active-high;
>> +};
>>
>> in odroid.dtsi instead in this patch.
> that sounds good to me
> 
>> Not sure what to do about the regulator-hub_5v.
> maybe dropping this regulator overall? we're using gpio-hogs elsewhere
> for the USB hub's reset line
> or dropping the gpio-hog and keeping this regulator to manage GPIOH_4

I'll drop it completely, it makes no sense to have a regulator for a HUB reset anyway.

Neil

> 
> 
> Best regards,
> Martin
>