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Date:   Wed, 12 Dec 2018 10:31:16 -0800
From:   Tony Lindgren <tony@atomide.com>
To:     "Reizer, Eyal" <eyalr@ti.com>
Cc:     Ricardo Salveti <rsalveti@rsalveti.net>,
        John Stultz <john.stultz@linaro.org>,
        "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>,
        "anders.roxell@linaro.org" <anders.roxell@linaro.org>
Subject: Re: [EXTERNAL] Re: wlcore getting stuck on hikey after the runtime
 PM autosuspend support change
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* Reizer, Eyal <eyalr@ti.com> [181212 07:27]:
> I Just tried on an available am335x-evm using 4.20.0-rc1 which I believe has all the patches merged already.
> I am using the same script  and not seeing any failure yet.
> See below:
> 
> root@am335x-evm:/usr/share/wl18xx# uname -r
> 4.20.0-rc1-11287-gf487c00
> root@am335x-evm:/usr/share/wl18xx#
> root@am335x-evm:/usr/share/wl18xx#
> root@am335x-evm:/usr/share/wl18xx#
> root@am335x-evm:/usr/share/wl18xx#
> root@am335x-evm:/usr/share/wl18xx# while true; do ifconfig wlan0 down; ifconfig wlan0 up; done;
> [1378786.491101] wlcore: down
> [1378787.093006] wlcore: PHY firmware version: Rev 8.2.0.0.242
> [1378787.168523] wlcore: firmware booted (Rev 8.9.0.1.79)
> [1378787.215897] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
...

Yeah I was seeing the same yesterday when I tried it.

Could it be that there needs to be a little msleep() after
loading the firmware on some platforms and before enabling
PM runtime?

Regards,

Tony