linux-kernel - Re: [PATCH 3/3] arm64: dts: imx8mq: Add system counter node

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Message-ID: <8a887fee-54e7-16ac-6373-a693ec7ad944@posteo.de>
Date:   Sun, 23 Jun 2019 13:20:40 +0200
From:   Martin Kepplinger <martink@...teo.de>
To:     Anson.Huang@....com, daniel.lezcano@...aro.org, tglx@...utronix.de,
        robh+dt@...nel.org, mark.rutland@....com, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        l.stach@...gutronix.de, abel.vesa@....com, ccaione@...libre.com,
        angus@...ea.ca, andrew.smirnov@...il.com, agx@...xcpu.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     Linux-imx@....com
Subject: Re: [PATCH 3/3] arm64: dts: imx8mq: Add system counter node

On 22.06.19 16:16, Martin Kepplinger wrote:
> On 21.06.19 10:28, Anson.Huang@....com wrote:
>> From: Anson Huang <Anson.Huang@....com>
>>
>> Add i.MX8MQ system counter node to enable timer-imx-sysctr
>> broadcast timer driver.
> 
> with these changes and TIMER_IMX_SYS_CTR selected, I don't see cpuidle
> working yet (which is what I want to achieve on imx8mq). Might there be
> a system counter clock definition or anything else missing?
> 

To be clear about what I tried running: Abel's wakeup-workaround (with
the corresponding ATF changes): https://lkml.org/lkml/2019/6/10/350 plus
your patches here (although you don't define a system counter clock,
like you do in your imx8mm patches).

In any case, I might try to enable cpuidle totally wrong still :) and
I'd be happy for hints and test your changes (no matter how fit they are
to be merged right now).

thanks,
                                     martin