linux-kernel - Re: [RESEND PATCH] clk: stm32: fix: stm32 clock drivers are not compiled by default

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Message-ID: <503ec7d8-e493-3458-e974-5fab5649aaf8@st.com>
Date:   Wed, 16 May 2018 10:01:56 +0200
From:   Alexandre Torgue <alexandre.torgue@...com>
To:     Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        <gabriel.fernandez@...com>
CC:     <linux-clk@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        benjamin GAIGNARD <benjamin.gaignard@...com>,
        Loic PALLARDY <loic.pallardy@...com>
Subject: Re: [RESEND PATCH] clk: stm32: fix: stm32 clock drivers are not
 compiled by default



On 05/16/2018 09:57 AM, Stephen Boyd wrote:
> Quoting Alexandre Torgue (2018-05-16 00:34:21)
>>>>
>>>> Sorry I don't understand. Clock driver is mandatory to boot each
>>>> platform and depends on machine type. Do you see a use case where we
>>>> could need to disable the clock driver? (it would impose to change
>>>> devicetree to use fixed clocks and to have a booloader which configures
>>>> all PLL and clocks).
>>>
>>> No. My understanding of the patch that introduced the options was to
>>> allow the user to disable these drivers if they wanted to. I'm just
>>> reiterating the spirit of that patch. That must be wrong?
>>>
>> Actually initial patch is a mistake. You can't boot STM32 platform
>> without clock driver. This patch fixes that, and offers the possibility
>> to not build the clock driver of the machine which are not used
>> (currently all machine are selected but to reduce memory footprint you
>> could disable not used machine in defconfig).
> 
> Ok I stuck the patch into clk-fixes. Will send off to Linus tomorrow or the
> next day.
> 
Thanks Stephen