Linux on ARM based TI OMAP SoCs
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From: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
To: "Reizer, Eyal" <eyalr-l0cyMroinI0@public.gmane.org>
Cc: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	Kalle Valo <kvalo-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
	KISHON VIJAY ABRAHAM <kishon-l0cyMroinI0@public.gmane.org>,
	"Mishol, Guy" <guym-l0cyMroinI0@public.gmane.org>,
	"linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	linux-omap <linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	Anders Roxell
	<anders.roxell-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	John Stultz <john.stultz-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
	Ricardo Salveti
	<rsalveti-3fX5ma9fJBTk1uMJSBkQmQ@public.gmane.org>
Subject: Re: [EXTERNAL] Re: [PATCH] wlcore: Fix bringing up wlan0 again if powered down briefly
Date: Sun, 23 Dec 2018 08:02:26 -0800	[thread overview]
Message-ID: <20181223160226.GK6707@atomide.com> (raw)
In-Reply-To: <c22e2ab61b494ea0852c0f4654fef92d-l0cyMroinI0@public.gmane.org>

Hi,

* Reizer, Eyal <eyalr-l0cyMroinI0@public.gmane.org> [181223 07:38]:
> You are ok as long as the wlan_enable pin Does go down for a sufficient amount of time 
> turning the wl18xx device off.
> The firmware can only be downloaded once after power on.
> In between down/up you have to make sure the wlan_enable is fully going through on->off->on 
> and the wl18xx device is fully reset. 
> On power on the firmware is loaded by the driver and this will fail in case the reset didn't happen

OK thanks for confirming that it's the enable pin that needs to toggle.

Sounds like I need to get the wlcore pwrseq changes done and posted as
the long term solution.

And for a short term fix, we should just add msleep(50) for now with
updated patch description.

Does that that sound OK to everybody?

Regards,

Tony

  parent reply	other threads:[~2018-12-23 16:02 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-17 16:42 [PATCH] wlcore: Fix bringing up wlan0 again if powered down briefly Tony Lindgren
     [not found] ` <20181217164207.20081-1-tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2018-12-18  1:06   ` Ricardo Salveti
2018-12-18 12:34   ` Ulf Hansson
     [not found]     ` <CAPDyKFoLnNWsBfaUwqwL31J=zb0UOQjXUKi7Sj0AUsnNoC6bYg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-12-18 15:54       ` Tony Lindgren
     [not found]         ` <20181218155439.GB6707-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2018-12-20 10:14           ` Ulf Hansson
     [not found]             ` <CAPDyKFr2xx6fmdgjd10C1jekWg-yZPk32fGWEPO2PyexjofJ1A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-12-20 23:14               ` Tony Lindgren
     [not found]                 ` <20181220231401.GG6707-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2018-12-23  7:38                   ` [EXTERNAL] " Reizer, Eyal
     [not found]                     ` <c22e2ab61b494ea0852c0f4654fef92d-l0cyMroinI0@public.gmane.org>
2018-12-23 16:02                       ` Tony Lindgren [this message]
     [not found]                         ` <20181223160226.GK6707-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2018-12-28 11:01                           ` Ulf Hansson
     [not found]                             ` <CAPDyKFoEOGACs4Wnm7UgKab2b1-7+v8+31DpC+p=8XxcQhSpcQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-12-28 19:59                               ` Tony Lindgren
     [not found]                                 ` <20181228195903.GX6707-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2019-01-02 12:01                                   ` Ulf Hansson
     [not found]                                     ` <CAPDyKFq9XmRueJEFKVb03hqLuoB84TGjrdvEjre46ezYbk_wgw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-01-07 15:18                                       ` Tony Lindgren
     [not found]                                         ` <20190107151849.GC5544-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2019-01-07 16:12                                           ` Kalle Valo
     [not found]                                             ` <87k1jgsaze.fsf-HodKDYzPHsUD5k0oWYwrnHL1okKdlPRT@public.gmane.org>
2019-01-14 13:47                                               ` Ulf Hansson
2018-12-28  9:48                       ` Ulf Hansson

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