From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: [PATCH RESEND] i2c/nomadik: runtime PM support Date: Thu, 8 Mar 2012 14:41:54 +0000 Message-ID: <20120308144154.GO3638@opensource.wolfsonmicro.com> References: <1331213407-10135-1-git-send-email-linus.walleij@stericsson.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="jXoUnAu9pZeaHebo" Return-path: Content-Disposition: inline In-Reply-To: <1331213407-10135-1-git-send-email-linus.walleij-0IS4wlFg1OjSUeElwK9/Pw@public.gmane.org> Sender: linux-i2c-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Linus Walleij Cc: Ben Dooks , linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Jonas Aaberg , Magnus Damm , "Rafael J. Wysocki" , Linus Walleij List-Id: linux-i2c@vger.kernel.org --jXoUnAu9pZeaHebo Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, Mar 08, 2012 at 02:30:07PM +0100, Linus Walleij wrote: > The key reason is that we have hardware blocks with different > characteristics on the order to do things, whereas in some other > systems (like shmobile I guess) every IP block shall be twisted > the same way. We have a mixed legacy of ARM PrimeCells and IP > blocks from different corners of the world and just cannot do > it in one single way. ARM PrimeCells already have some > centralized runtime PM callbacks. Yeah, the other issue on some systems with long histories is that if you've got many generations of SoC it can be easier to roll updates out over drivers than get all the SoCs updated to the latest infrastructure along with supporting new ones. --jXoUnAu9pZeaHebo Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAEBAgAGBQJPWMUrAAoJEBus8iNuMP3d2JwQAJgP9X9qYwZy0LCU5L8QAHGg A+hcHV+BILeNzwPL15VXqVZCqUdhfSDW118S0zmKiGnARLw0nqe+TB8Xl9ZNkSWw aJWUV7aq6ulMXy1cihR1CpflDEZRmvq5bgg7C+lom41FgrNvsuE/iL3XRfyn5lXo 2q+AJnDvEbWbr4loLaBGjB0IOwYc+RdOAh1ADWYfCTeqPw4sN5vaaA4cyoowVWMP zlqQKUiCAcDzRp87ZtYr0RqWEpRMidODcyCC1LOO2CysBnVIs80lPA/vQbdFvh9Z Pv4O1zSgc0FbnM2ayhcTBGvQbjpkx/tBAyoDtATqV2NtCSMWRkdarNuB32fT3aAK Cnpf7eRN83NRUZXqKWlmv2wLAkprUE0gBxgEb0Hqzjn3I5/bWNue/jD1Cl/GXi2c gUdAOJoeksjtupDFWtuDRTYU+jO/rggDs/aRqBZ5EPZaDYtu/D3RXYOTqCk71S6g LSS9iOPEQzf5HLFrmZkCefkkgVdQ3A65CQUWN/KxLLULCt2lRwYbrFsJTUfNla5w eTcLfyiY2BGk1Eo//HSDv++IGJUgo6h8KjtCxZIdZl6qC8Ezn0bll+c8P3C8MoNJ wZZGA33mynC3FV2rkntAesom69YVU/2Laup6pzkH04x4e28KdIUPStDNdh8WJBKv te3MGoROGhc37Lwyp+kZ =rPZQ -----END PGP SIGNATURE----- --jXoUnAu9pZeaHebo--