linux-kernel - Re: [PATCH 06/43] clocksource: ep93xx: Add driver for Cirrus Logic EP93xx

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Date:   Wed, 26 Apr 2023 22:40:39 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Nikita Shubin <nikita.shubin@...uefel.me>
Cc:     Arnd Bergmann <arnd@...nel.org>, Linus Walleij <linusw@...nel.org>,
        Alexander Sverdlin <alexander.sverdlin@...il.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 06/43] clocksource: ep93xx: Add driver for Cirrus Logic EP93xx

On Mon, Apr 24, 2023 at 11:35 AM Nikita Shubin
<nikita.shubin@...uefel.me> wrote:

> This us a rewrite of EP93xx timer driver in
> arch/arm/mach-ep93xx/timer-ep93xx.c trying to do everything
> the device tree way:
>
> - Make every IO-access relative to a base address and dynamic
>   so we can do a dynamic ioremap and get going.
> - Find register range and interrupt from the device tree.
>
> Signed-off-by: Nikita Shubin <nikita.shubin@...uefel.me>

That's a fine clocksource driver!
If EP93xx didn't have the sched_clock callback before, it will
likely also speed up boot.
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij