linux-kernel - Re: [PATCH v2] clocksource/drivers/riscv: Get rid of clocksource_arch

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Message-ID: <b766f862-b253-b2a7-7f43-87ebeb0a4263@linaro.org>
Date:   Thu, 26 Jan 2023 12:18:05 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Prabhakar <prabhakar.csengg@...il.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     linux-riscv@...ts.infradead.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        linux-kernel@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        Samuel Holland <samuel@...lland.org>
Subject: Re: [PATCH v2] clocksource/drivers/riscv: Get rid of
 clocksource_arch_init() callback

On 29/12/2022 23:46, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> 
> Having a clocksource_arch_init() callback always sets vdso_clock_mode to
> VDSO_CLOCKMODE_ARCHTIMER if GENERIC_GETTIMEOFDAY is enabled, this is
> required for the riscv-timer.
> 
> This works for platforms where just riscv-timer clocksource is present.
> On platforms where other clock sources are available we want them to
> register with vdso_clock_mode set to VDSO_CLOCKMODE_NONE.
> 
> On the Renesas RZ/Five SoC OSTM block can be used as clocksource [0], to
> avoid multiple clock sources being registered as VDSO_CLOCKMODE_ARCHTIMER
> move setting of vdso_clock_mode in the riscv-timer driver instead of doing
> this in clocksource_arch_init() callback as done similarly for ARM/64
> architecture.
> 
> [0] drivers/clocksource/renesas-ostm.c
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> Tested-by: Samuel Holland <samuel@...lland.org>
> ---

Applied, I had a trivial conflict which was fixed. Please have a look on 
the patch once it is push in the timers/next branch

Thanks

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