linux-kernel - Re: [PATCH v2] clk: imx: composite-8m: fix clock pauses when set

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:   Mon, 14 Aug 2023 13:09:57 +0300
From:   Abel Vesa <abel.vesa@...aro.org>
To:     Abel Vesa <abelvesa@...nel.org>, Peng Fan <peng.fan@....com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Ahmad Fatoum <a.fatoum@...gutronix.de>
Cc:     Peng Fan <peng.fan@....nxp.com>, linux-clk@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] clk: imx: composite-8m: fix clock pauses when set_rate would be a no-op


On Mon, 07 Aug 2023 10:22:00 +0200, Ahmad Fatoum wrote:
> Reconfiguring the clock divider to the exact same value is observed
> on an i.MX8MN to often cause a longer than usual clock pause, probably
> because the divider restarts counting whenever the register is rewritten.
> 
> This issue doesn't show up normally, because the clock framework will
> take care to not call set_rate when the clock rate is the same.
> However, when we reconfigure an upstream clock, the common code will
> call set_rate with the newly calculated rate on all children, e.g.:
> 
> [...]

Applied, thanks!

[1/1] clk: imx: composite-8m: fix clock pauses when set_rate would be a no-op
      commit: 4dd432d985ef258e3bc436e568fba4b987b59171

Best regards,
-- 
Abel Vesa <abel.vesa@...aro.org>