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Date:   Thu, 5 Dec 2019 12:11:33 +0100
From:   Sean Nyekjaer <>
To:     Joakim Zhang <>,
        Marc Kleine-Budde <>,
        "" <>
Cc:     dl-linux-imx <>,
        "" <>
Subject: Re: [PATCH V2 2/4] can: flexcan: try to exit stop mode during probe

On 05/12/2019 12.04, Joakim Zhang wrote:
> Hi Sean,
> At my side, both Power-On-Reset and reboot from console can get CAN-IP out of stop mode, HW is i.MX7D-SDB/i.MX8QXP-mek.
> I think HW design could make difference.
> We more care about how does CAN-IP stuck in stop mode, could you please explain in details? We want figure out the root cause.

When running only with the first stop mode commit:
de3578c198c6 ("can: flexcan: add self wakeup support")
And there is incoming traffic on both CAN lines.
I happens when going into suspend.
Then the CAN-IP is stuck in stop mode..

I'm on this custom i.MX6ull board.
I have another custom board also with the i.MX6ull where the watchdog 
pins are wired to the PMIC.
Will try to test on that next week


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