From: Tony Lindgren <tony@atomide.com> To: Ulf Hansson <ulf.hansson@linaro.org> Cc: "Reizer, Eyal" <eyalr@ti.com>, Kalle Valo <kvalo@codeaurora.org>, KISHON VIJAY ABRAHAM <kishon@ti.com>, "Mishol, Guy" <guym@ti.com>, "linux-wireless@vger.kernel.org" <linux-wireless@vger.kernel.org>, linux-omap <linux-omap@vger.kernel.org>, Anders Roxell <anders.roxell@linaro.org>, John Stultz <john.stultz@linaro.org>, Ricardo Salveti <rsalveti@rsalveti.net> 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@mail.gmail.com> * Ulf Hansson <ulf.hansson@linaro.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
WARNING: multiple messages have this Message-ID (diff)
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
next prev parent reply other threads:[~2019-01-07 15:18 UTC|newest] Thread overview: 30+ 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 2018-12-17 16:42 ` Tony Lindgren 2018-12-18 1:06 ` Ricardo Salveti 2018-12-18 1:06 ` Ricardo Salveti 2018-12-18 12:34 ` Ulf Hansson 2018-12-18 12:34 ` Ulf Hansson 2018-12-18 15:54 ` Tony Lindgren 2018-12-18 15:54 ` Tony Lindgren 2018-12-20 10:14 ` Ulf Hansson 2018-12-20 10:14 ` Ulf Hansson 2018-12-20 23:14 ` Tony Lindgren 2018-12-20 23:14 ` Tony Lindgren 2018-12-23 7:38 ` [EXTERNAL] " Reizer, Eyal 2018-12-23 7:38 ` Reizer, Eyal 2018-12-23 16:02 ` Tony Lindgren 2018-12-23 16:02 ` Tony Lindgren 2018-12-28 11:01 ` Ulf Hansson 2018-12-28 11:01 ` Ulf Hansson 2018-12-28 19:59 ` Tony Lindgren 2018-12-28 19:59 ` Tony Lindgren 2019-01-02 12:01 ` Ulf Hansson 2019-01-02 12:01 ` Ulf Hansson 2019-01-07 15:18 ` Tony Lindgren [this message] 2019-01-07 15:18 ` Tony Lindgren 2019-01-07 16:12 ` Kalle Valo 2019-01-07 16:12 ` Kalle Valo 2019-01-14 13:47 ` Ulf Hansson 2019-01-14 13:47 ` Ulf Hansson 2018-12-28 9:48 ` Ulf Hansson 2018-12-28 9:48 ` Ulf Hansson
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