From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759222Ab2DJPTt (ORCPT ); Tue, 10 Apr 2012 11:19:49 -0400 Received: from opensource.wolfsonmicro.com ([80.75.67.52]:43646 "EHLO opensource.wolfsonmicro.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758798Ab2DJPTr (ORCPT ); Tue, 10 Apr 2012 11:19:47 -0400 Date: Tue, 10 Apr 2012 16:19:43 +0100 From: Mark Brown To: Alan Cox Cc: mingo@elte.hu, linux-kernel@vger.kernel.org Subject: Re: [PATCH RESEND] x86, intel_mid: ADC management Message-ID: <20120410151943.GM7499@opensource.wolfsonmicro.com> References: <20120410131930.28186.85370.stgit@bob.linux.org.uk> <20120410131206.GB31551@sirena.org.uk> <20120410142501.6045c6c0@pyramind.ukuu.org.uk> <20120410133339.GK7499@opensource.wolfsonmicro.com> <20120410144235.1e05efd4@pyramind.ukuu.org.uk> <20120410140749.GL7499@opensource.wolfsonmicro.com> <20120410151529.5bcc5ce6@pyramind.ukuu.org.uk> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="yaap9KN+GmBP785v" Content-Disposition: inline In-Reply-To: <20120410151529.5bcc5ce6@pyramind.ukuu.org.uk> X-Cookie: You dialed 5483. User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --yaap9KN+GmBP785v Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Tue, Apr 10, 2012 at 03:15:29PM +0100, Alan Cox wrote: > > Could you be more specific about what this early boot time stuff is? > > Looking at the changelogs in there it all looks like the standard > > battery monitoring and power supply stuff that these ADCs get used for - > > just based on the changelogs there doesn't appear to be anything > > remarkable here. > It depends on the actual device but things the like battery management > are a key one. Right, like I say that all sounds totally standard and unremarkable. > > We can't just keep on going round adding new custom interfaces every > > time someone supports a new SoC - it means we end up having to sit and > We can't go around blocking entire platforms because of the IIO blob. I > raised this point with the whole previous *generation* of Intel SoC > devices about IIO and nothing has been done about it. Including by Intel, of course. > Get IIO out of staing and we can look at it, until then IIO is staging > code, it's not part of the kernel, it may never be part of the kernel, > and it should never block actual kernel code. That's not where the rest of the embedded community has been coming from on this stuff and from a deployment point of view staging isn't really that big a blocker to users. We've had a lot of experience with trying to follow that approach and the results haven't been great thus far. Frankly at this point I don't understand why we can't just lift IIO out of staging as-is, perhaps with the userspace ABI nobbled or moved into debugfs for the time being if that's still a concern. Alternatively there is the option of you proposing some other generic framework. --yaap9KN+GmBP785v Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAEBAgAGBQJPhE+HAAoJEBus8iNuMP3dYpsP/1iRFE12P5ybBC9/bKMs2PsY KZAADZ6M79UaDuZ6t4hlS5BGSLqSKb7cCeA1Qkzqvts4AfwKruUPpCExMoCL1yKE dHgl4m0BAGmfcXeDkv5FOMuJxgOojAajvGPsB61JgFIMjE8eYli4nd01VIf+ei0z axqPeGTnZQexLNvY09kCv4eFOvmCGf3mU3dGnxk6WPQrMZ49hMeVdZFB+CkLMuXv 009/q6sWduyGgv80ntyC99cW5vWuuFG/Hh7JVnkPpQ0f43ATbC+aPMq8nvnxHQua b7j8K05+EKCFoLWrnooKGLrW1QJRS3cC0ozjEYoMPDVwhgY0luwf+3dp64kF31up gaIl+ETCW4nVlrxdtbsrXAsG73HFW6RR0QShLXAfd1Uo1g0nzmZHFBJBQdo2mOJP fXh/h8MP8+8AOd5NZnOIqCSXKku11tCuyAZzx1xTPsWXsg0IZkryL6lV3m5QFOyT iYE5+gc7IeTJxXvMMgEyaM9LRzXK35n5+i7rDh6YmlKd1OkCa4DX+CBcyVMXJ46V WsRvQARW0mjYz9JZF1cSfPn0Kee02a6vLNAfWZrwxnFvAnztXjhkRYTF/YWHJMr8 rhsJFQZITqnqzvMwjOKvwspVlWqDYLK3YPozBru8nslkmcpySv9S2+xopYURk5Gw 5S4Z9wTjdbGeiUZVY4JL =MVFs -----END PGP SIGNATURE----- --yaap9KN+GmBP785v--