linux-kernel - Re: [PATCH] clocksource: sh_cmt: use CMTOUT

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Message-ID: <20210309093525.GB2538@ninjato>
Date:   Tue, 9 Mar 2021 10:35:25 +0100
From:   Wolfram Sang <wsa+renesas@...g-engineering.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Phong Hoang <phong.hoang.wz@...esas.com>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Niklas Söderlund <niklas.soderlund@...natech.se>
Subject: Re: [PATCH] clocksource: sh_cmt: use CMTOUT_IE only when supported


> But given my comments below, I think it would make sense to change the
> one-line summary to e.g. "clocksource: sh_cmt: R-Car Gen2/Gen3 do not
> have CMTOUT_IE".

Makes sense. I will resend.

> SH_CMT_48BIT:
> sh73a0/r8a7740: CMTOUT_IE supported on channels 1/2/3, not on 0/4/5

Oh, I didn't spot this, sorry!

> So even not all older models support this bit.
> Probably this bit should only be set when the timer is configured as a
> wake-up source.  But that is out-of-scope for this patch.

Ack.


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