From: Mark Brown <broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
To: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
Cc: Wei Ni <wni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
'Philip Rakity' <prakity-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>,
Rakesh Kumar <krakesh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
"'frankyl-dY08KVG/lbpWk0Htik3J/w@public.gmane.org'"
<frankyl-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>,
Thierry Reding
<thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>,
Mursalin Akon <makon-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
"'linux-mmc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org'"
<linux-mmc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org"
<devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org>,
"'linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org'"
<linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
Grant Likely
<grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org>
Subject: Re: Where to power on the wifi device before loading the driver.
Date: Wed, 20 Jun 2012 11:47:44 +0100 [thread overview]
Message-ID: <20120620104744.GK3978@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <4FE112F2.7000506-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
[-- Attachment #1: Type: text/plain, Size: 825 bytes --]
On Tue, Jun 19, 2012 at 06:01:54PM -0600, Stephen Warren wrote:
> Unfortunately, it should be noted that the WiFi device socket on Cardhu
> apparently isn't some standardized thing (like PCIe) but something
> rather more custom, although there are apparently devices available to
> plug into it from multiple module vendors which contain WiFi chips from
> multiple chip vendors.
Right, and indeed someone may decide to plug in something that isn't a
WiFi device at all but some other SDIO attached device with totally
different uses for those GPIOs. Really these boards are an example of
the sort of thing I was talking about with modular reference systems,
though a simpler case as given what's brought out you probably can just
do something like list all the options that are there and allow hotplug
to sort things out.
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WARNING: multiple messages have this Message-ID (diff)
From: Mark Brown <broonie@opensource.wolfsonmicro.com>
To: Stephen Warren <swarren@wwwdotorg.org>
Cc: Wei Ni <wni@nvidia.com>, 'Philip Rakity' <prakity@marvell.com>,
Rakesh Kumar <krakesh@nvidia.com>,
"'frankyl@broadcom.com'" <frankyl@broadcom.com>,
Thierry Reding <thierry.reding@avionic-design.de>,
Mursalin Akon <makon@nvidia.com>,
"'linux-mmc@vger.kernel.org'" <linux-mmc@vger.kernel.org>,
"devicetree-discuss@lists.ozlabs.org"
<devicetree-discuss@lists.ozlabs.org>,
"'linux-wireless@vger.kernel.org'"
<linux-wireless@vger.kernel.org>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
Grant Likely <grant.likely@secretlab.ca>
Subject: Re: Where to power on the wifi device before loading the driver.
Date: Wed, 20 Jun 2012 11:47:44 +0100 [thread overview]
Message-ID: <20120620104744.GK3978@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <4FE112F2.7000506@wwwdotorg.org>
[-- Attachment #1: Type: text/plain, Size: 825 bytes --]
On Tue, Jun 19, 2012 at 06:01:54PM -0600, Stephen Warren wrote:
> Unfortunately, it should be noted that the WiFi device socket on Cardhu
> apparently isn't some standardized thing (like PCIe) but something
> rather more custom, although there are apparently devices available to
> plug into it from multiple module vendors which contain WiFi chips from
> multiple chip vendors.
Right, and indeed someone may decide to plug in something that isn't a
WiFi device at all but some other SDIO attached device with totally
different uses for those GPIOs. Really these boards are an example of
the sort of thing I was talking about with modular reference systems,
though a simpler case as given what's brought out you probably can just
do something like list all the options that are there and allow hotplug
to sort things out.
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 836 bytes --]
WARNING: multiple messages have this Message-ID (diff)
From: broonie@opensource.wolfsonmicro.com (Mark Brown)
To: linux-arm-kernel@lists.infradead.org
Subject: Where to power on the wifi device before loading the driver.
Date: Wed, 20 Jun 2012 11:47:44 +0100 [thread overview]
Message-ID: <20120620104744.GK3978@opensource.wolfsonmicro.com> (raw)
In-Reply-To: <4FE112F2.7000506@wwwdotorg.org>
On Tue, Jun 19, 2012 at 06:01:54PM -0600, Stephen Warren wrote:
> Unfortunately, it should be noted that the WiFi device socket on Cardhu
> apparently isn't some standardized thing (like PCIe) but something
> rather more custom, although there are apparently devices available to
> plug into it from multiple module vendors which contain WiFi chips from
> multiple chip vendors.
Right, and indeed someone may decide to plug in something that isn't a
WiFi device at all but some other SDIO attached device with totally
different uses for those GPIOs. Really these boards are an example of
the sort of thing I was talking about with modular reference systems,
though a simpler case as given what's brought out you probably can just
do something like list all the options that are there and allow hotplug
to sort things out.
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next prev parent reply other threads:[~2012-06-20 10:47 UTC|newest]
Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-13 10:40 Where to power on the wifi device before loading the driver Wei Ni
2012-06-13 10:40 ` Wei Ni
2012-06-13 10:40 ` Wei Ni
[not found] ` <6B4D417B830BC44B8026029FD256F7F1C377BFFE88-Q4EWCATADntDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-06-13 17:33 ` Franky Lin
2012-06-13 17:33 ` Franky Lin
2012-06-13 17:33 ` Franky Lin
2012-06-14 4:17 ` Wei Ni
2012-06-14 4:17 ` Wei Ni
2012-06-14 16:45 ` Franky Lin
2012-06-14 16:45 ` Franky Lin
2012-06-13 21:17 ` Stephen Warren
2012-06-13 21:17 ` Stephen Warren
2012-06-14 6:31 ` Thierry Reding
2012-06-14 6:31 ` Thierry Reding
[not found] ` <20120614063120.GA20167-RM9K5IK7kjIQXX3q8xo1gnVAuStQJXxyR5q1nwbD4aMs9pC9oP6+/A@public.gmane.org>
2012-06-14 12:12 ` Mark Brown
2012-06-14 12:12 ` Mark Brown
2012-06-14 12:12 ` Mark Brown
[not found] ` <20120614121234.GC3913-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-06-14 15:54 ` Stephen Warren
2012-06-14 15:54 ` Stephen Warren
2012-06-14 15:54 ` Stephen Warren
2012-06-15 6:09 ` Wei Ni
2012-06-15 6:09 ` Wei Ni
2012-06-15 15:49 ` Stephen Warren
2012-06-15 15:49 ` Stephen Warren
[not found] ` <4FDB5976.20809-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-06-18 6:20 ` Wei Ni
2012-06-18 6:20 ` Wei Ni
2012-06-18 6:20 ` Wei Ni
2012-06-18 7:40 ` Rakesh Kumar
2012-06-18 7:40 ` Rakesh Kumar
[not found] ` <96C9D994977DD0439FB6D3FE3B13DD907DE14CB4DF-kdsAE/FnitNDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-06-18 8:03 ` Laxman Dewangan
2012-06-18 8:03 ` Laxman Dewangan
2012-06-18 8:03 ` Laxman Dewangan
[not found] ` <96C9D994977DD0439FB6D3FE3B13DD907DE14CB4E8-kdsAE/FnitNDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-06-18 15:01 ` Stephen Warren
2012-06-18 15:01 ` Stephen Warren
2012-06-18 15:01 ` Stephen Warren
2012-06-19 9:13 ` Wei Ni
2012-06-19 9:13 ` Wei Ni
[not found] ` <6B4D417B830BC44B8026029FD256F7F1C6EE2DD61F-Q4EWCATADntDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-06-19 1:23 ` Philip Rakity
2012-06-19 1:23 ` Philip Rakity
2012-06-19 1:23 ` Philip Rakity
2012-06-19 4:25 ` Wei Ni
2012-06-19 4:25 ` Wei Ni
[not found] ` <6B4D417B830BC44B8026029FD256F7F1C6EE2DD622-Q4EWCATADntDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-06-19 9:17 ` Mark Brown
2012-06-19 9:17 ` Mark Brown
2012-06-19 9:17 ` Mark Brown
[not found] ` <20120619091719.GZ3974-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
2012-06-19 9:44 ` Wei Ni
2012-06-19 9:44 ` Wei Ni
2012-06-19 9:44 ` Wei Ni
[not found] ` <6B4D417B830BC44B8026029FD256F7F1C6EE2DD626-Q4EWCATADntDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-06-20 0:01 ` Stephen Warren
2012-06-20 0:01 ` Stephen Warren
2012-06-20 0:01 ` Stephen Warren
[not found] ` <4FE112F2.7000506-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-06-20 10:47 ` Mark Brown [this message]
2012-06-20 10:47 ` Mark Brown
2012-06-20 10:47 ` Mark Brown
2012-06-20 11:28 ` Wei Ni
2012-06-20 11:28 ` Wei Ni
2012-06-20 11:28 ` Wei Ni
[not found] ` <6B4D417B830BC44B8026029FD256F7F1C6EE2DD629-Q4EWCATADntDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-06-20 16:51 ` Stephen Warren
2012-06-20 16:51 ` Stephen Warren
2012-06-20 16:51 ` Stephen Warren
2012-06-26 8:56 ` Dong Aisheng
2012-06-26 8:56 ` Dong Aisheng
2012-06-26 8:56 ` Dong Aisheng
[not found] ` <20120626085605.GA6047-Fb7DQEYuewWctlrPMvKcciBecyulp+rMXqFh9Ls21Oc@public.gmane.org>
2012-06-26 16:53 ` Stephen Warren
2012-06-26 16:53 ` Stephen Warren
[not found] ` <4FE9E907.6050803-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-06-26 21:26 ` Rob Herring
2012-06-26 21:26 ` Rob Herring
[not found] ` <4FEA28EC.2080906-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-06-26 22:38 ` Stephen Warren
2012-06-26 22:38 ` Stephen Warren
2012-06-27 2:19 ` Dong Aisheng
2012-06-27 2:19 ` Dong Aisheng
2012-06-27 2:16 ` Dong Aisheng
2012-06-27 2:16 ` Dong Aisheng
2012-06-15 16:24 ` Franky Lin
2012-06-15 16:24 ` Franky Lin
2012-06-15 16:24 ` Franky Lin
2012-06-18 6:00 ` Wei Ni
2012-06-18 6:00 ` Wei Ni
2012-06-14 11:27 ` Wei Ni
2012-06-14 11:27 ` Wei Ni
[not found] ` <6B4D417B830BC44B8026029FD256F7F1C377BFFE8A-Q4EWCATADntDw2glCA4ptUEOCMrvLtNR@public.gmane.org>
2012-06-14 11:44 ` Wei Ni
2012-06-14 11:44 ` Wei Ni
2012-06-14 11:44 ` Wei Ni
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