linux-kernel - Re: [PATCH RFC 0/2] mach-omap2: handle autoidle denial

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

Date:   Thu, 4 Oct 2018 08:07:51 -0700
From:   Tony Lindgren <tony@...mide.com>
To:     Tero Kristo <t-kristo@...com>
Cc:     Andreas Kemnade <andreas@...nade.info>, mturquette@...libre.com,
        sboyd@...nel.org, linux-omap@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        paul@...an.com, letux-kernel@...nphoenux.org,
        Suman Anna <s-anna@...com>
Subject: Re: [PATCH RFC 0/2] mach-omap2: handle autoidle denial

* Tero Kristo <t-kristo@...com> [181004 14:47]:
> On 04/10/18 17:25, Tony Lindgren wrote:
> > It seems we should just provide a generic interface for
> > clk_allow_autoidle() and clk_deny_autoidle()? Otherwise we'll
> > be forever stuck with pdata callbacks it seems.
> 
> The TI clock driver is actually providing these APIs, so that should be
> fine. I don't think there is any use / need for pdata callbacks atm, it just
> happens hwmod core is calling these at the moment which might have confused
> you.

Hmm OK. So do we already have some way to deny autoidle for a
clock from ti-sysc.c driver without pdata callbacks?

Suman pointed out few days ago that for a reset driver to work
we must do clkdm_deny_idle() and clkdm_allow_idle() as the hwmod
code does. I gues that really just boils down to doing clk deny
idle and allow idle on the clockdomain clkctrl clock?

Regards,

Tony