Linux on ARM based TI OMAP SoCs
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From: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
To: Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: "Reizer, Eyal" <eyalr-l0cyMroinI0@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: Mon, 7 Jan 2019 07:18:49 -0800	[thread overview]
Message-ID: <20190107151849.GC5544@atomide.com> (raw)
In-Reply-To: <CAPDyKFq9XmRueJEFKVb03hqLuoB84TGjrdvEjre46ezYbk_wgw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>

* Ulf Hansson <ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org> [190102 12:02]:
>
> However, if this is about an out-of-band IRQ line, instead of using
> the SDIO IRQs on DAT1, I think management of that, belongs in the wlan
> (or gpiochip) layers.

Yes this can be handled at the gpiochip layer.

> We have to distinguish if "down" has a strict requirement to power off
> the wlan-chip.
> 
> For example, in "flight mode", is it okay to leave the wlan chip
> powered on and thus potentially also having its radio part active?

I don't know. If unsure, we should at least have that possibility
available for future versions if needed. It might also help a bit
with PM measurements :)

Regards,

Tony

  parent reply	other threads:[~2019-01-07 15:18 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
     [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 [this message]
     [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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