linux-kernel - Re: [RFC][PATCH 0/1] ep93xx: clock: convert in-place

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Date:   Tue, 25 May 2021 21:39:27 +0200
From:   Alexander Sverdlin <alexander.sverdlin@...il.com>
To:     Nikita Shubin <nikita.shubin@...uefel.me>
Cc:     Russell King <linux@...linux.org.uk>,
        Hartley Sweeten <hsweeten@...ionengravers.com>,
        Arnd Bergmann <arnd@...db.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Ard Biesheuvel <ardb@...nel.org>,
        Mike Rapoport <rppt@...nel.org>,
        Gregory Fong <gregory.0xf0@...il.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        YiFei Zhu <yifeifz2@...inois.edu>,
        Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH 0/1] ep93xx: clock: convert in-place

Hello Nikita!

On 25/05/2021 10:33, Nikita Shubin wrote:
> Alexander please look at provided patch, the size goes from
> 
> ```
>    text    data     bss     dec     hex filename
> 4491689  920748   92840 5505277  5400fd vmlinux
> ```
> 
> to with patch applied:
> 
> ```
>    text    data     bss     dec     hex filename
> 4534485  927424   90304 5552213  54b855 vmlinux
> ```
> 
> If this is not acceptable to you, than it's perfectly fine, i'll 
> finish (actually only gpio left to rework to DT) and stash my rework 
> somewhere and can send link or patches to all interested.

I don't think that 50k is a serios issue even for this HW.
And Arnd is right, we still have some potential hidden within
missing CONFIG_LD_DEAD_CODE_DATA_ELIMINATION support.

> But still if you have possibility to test clocks for video and I2S
> it would be nice.

I don't have video, but I2S and ADC, and earliest in 2 weeks.

Thank you for looking into this!
--
Alexander.