linux-kernel - Re: [PATCH 2/2] drivers: misc: add ripple counter driver

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Message-ID: <CAHp75VfNHkJp-SMacKdaSuy3gDECs=u4BNMNe2KjYkrDiwb8jg@mail.gmail.com>
Date:   Sun, 28 Feb 2021 11:29:05 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>,
        "linux-clk@...r.kernel.org" <linux-clk@...r.kernel.org>
Subject: Re: [PATCH 2/2] drivers: misc: add ripple counter driver

On Sun, Feb 28, 2021 at 11:07 AM Andy Shevchenko
<andy.shevchenko@...il.com> wrote:
> On Friday, February 26, 2021, Rasmus Villemoes <linux@...musvillemoes.dk> wrote:
>>
>> The only purpose of this driver is to serve as a consumer of the input
>> clock, to prevent it from being disabled by clk_disable_unused().
>
> We have a clock API to do the same (something like marking it used or so) why do you need a driver?

Example:
https://elixir.bootlin.com/linux/latest/source/drivers/platform/x86/pmc_atom.c#L365

If it's a DT based platform I think you can make it somehow work thru DT.

-- 
With Best Regards,
Andy Shevchenko