From: Carlos Hernandez <ceh@ti.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>,
Tony Lindgren <tony@atomide.com>,
Thomas Gleixner <tglx@linutronix.de>
Cc: <linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH] clocksource/drivers/timer-ti-dm: Fix suspend and resume for am3 and am4
Date: Tue, 21 Jul 2020 09:11:29 -0400 [thread overview]
Message-ID: <6b5fc12c-4da3-fc67-b9dd-bfca2ae870f2@ti.com> (raw)
In-Reply-To: <1ac1ac81-1335-8ba2-590c-8f57c2df1910@linaro.org>
On 7/17/20 6:29 AM, Daniel Lezcano wrote:
> On 13/07/2020 18:26, Tony Lindgren wrote:
>> Carlos Hernandez <ceh@ti.com> reported that we now have a suspend and
>> resume regresssion on am3 and am4 compared to the earlier kernels. While
>> suspend and resume works with v5.8-rc3, we now get errors with rtcwake:
>>
>> pm33xx pm33xx: PM: Could not transition all powerdomains to target state
>> ...
>> rtcwake: write error
>>
>> This is because we now fail to idle the system timer clocks that the
>> idle code checks and the error gets propagated to the rtcwake.
>>
>> Turns out there are several issues that need to be fixed:
>>
>> 1. Ignore no-idle and no-reset configured timers for the ti-sysc
>> interconnect target driver as otherwise it will keep the system timer
>> clocks enabled
>>
>> 2. Toggle the system timer functional clock for suspend for am3 and am4
>> (but not for clocksource on am3)
>>
>> 3. Only reconfigure type1 timers in dmtimer_systimer_disable()
>>
>> 4. Use of_machine_is_compatible() instead of of_device_is_compatible()
>> for checking the SoC type
>>
>> Fixes: 52762fbd1c47 ("clocksource/drivers/timer-ti-dm: Add clockevent and clocksource support")
>> Reported-by: Carlos Hernandez <ceh@ti.com>
>> Signed-off-by: Tony Lindgren <tony@atomide.com>
>> ---
Tested-by: Carlos Hernandez <ceh@ti.com>
> Carlos, were you able to test this patch ?
>
--
Carlos
next prev parent reply other threads:[~2020-07-21 13:11 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-13 16:26 [PATCH] clocksource/drivers/timer-ti-dm: Fix suspend and resume for am3 and am4 Tony Lindgren
2020-07-15 10:17 ` Grygorii Strashko
2020-07-15 17:32 ` Tony Lindgren
2020-07-15 18:43 ` Grygorii Strashko
2020-07-17 10:29 ` Daniel Lezcano
[not found] ` <f96cb9d8-c940-672a-b1d2-a26570d6f775@ti.com>
2020-07-20 13:56 ` Carlos Hernandez
2020-07-20 14:30 ` Tony Lindgren
2020-07-21 3:35 ` Sekhar Nori
2020-07-21 13:11 ` Carlos Hernandez [this message]
2020-07-21 13:49 ` Daniel Lezcano
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=6b5fc12c-4da3-fc67-b9dd-bfca2ae870f2@ti.com \
--to=ceh@ti.com \
--cc=daniel.lezcano@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=tglx@linutronix.de \
--cc=tony@atomide.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).