linux-kernel - Re: [RFC v0 7/8] Input: ims-pcu: use firmware

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Message-ID: <2713d779-ef55-793d-f37e-d1414bb1bfc2@bmw-carit.de>
Date:	Tue, 2 Aug 2016 08:53:55 +0200
From:	Daniel Wagner <daniel.wagner@...-carit.de>
To:	"Luis R. Rodriguez" <mcgrof@...nel.org>
CC:	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Arend van Spriel <arend.vanspriel@...adcom.com>,
	Bjorn Andersson <bjorn.andersson@...aro.org>,
	Daniel Wagner <wagi@...om.org>,
	Bastien Nocera <hadess@...ess.net>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Johannes Berg <johannes.berg@...el.com>,
	Kalle Valo <kvalo@...eaurora.org>,
	Ohad Ben-Cohen <ohad@...ery.com>,
	Mimi Zohar <zohar@...ux.vnet.ibm.com>,
	David Howells <dhowells@...hat.com>,
	Andy Lutomirski <luto@...capital.net>,
	David Woodhouse <dwmw2@...radead.org>,
	Julia Lawall <julia.lawall@...6.fr>,
	<linux-input@...r.kernel.org>, <linux-kselftest@...r.kernel.org>,
	<linux-wireless@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [RFC v0 7/8] Input: ims-pcu: use firmware_stat instead of
 completion

On 08/02/2016 08:34 AM, Luis R. Rodriguez wrote:
> On Tue, Aug 02, 2016 at 07:49:19AM +0200, Daniel Wagner wrote:
>>> The sysdata API's main goal rather is to provide a flexible API first,
>>> compartamentalizing the usermode helper was secondary. But now it seems
>>> I may just also add devm support too to help simplify code further.
>>
>> I missed the point that you plan to add usermode helper support to
>> the sysdata API.
>
> I had no such plans, when I have asked folks so far about "hey are you
> really in need for it, OK what for? " and "what extended uses do you
> envision?" so I far I have not gotten any replies at all. So -- instead
> sysdata currently ignores it.

So you argue for the remoteproc use case with 100+ MB firmware that if 
there is a way to load after pivot_root() (or other additional firmware 
partition shows up) then there is no need at all for usermode helper?