From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Brown Subject: Re: [PATCH v4 4/4] ARM: mvebu: Armada 385 GP: Add regulators to the SATA port Date: Sat, 17 Jan 2015 13:14:05 +0000 Message-ID: <20150117131404.GA6414@sirena.org.uk> References: <1421330978-9694-1-git-send-email-gregory.clement@free-electrons.com> <1421330978-9694-5-git-send-email-gregory.clement@free-electrons.com> <54B8C933.7020502@redhat.com> <54B8D97B.3090908@free-electrons.com> <54B8E38A.6020709@redhat.com> <20150116123705.GM3043@sirena.org.uk> <54B9629C.9090800@redhat.com> <20150116202516.GL3856@sirena.org.uk> <54BA21F9.5050408@redhat.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="5mCyUwZo2JvN/JJP" Return-path: Content-Disposition: inline In-Reply-To: <54BA21F9.5050408-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Hans de Goede Cc: Gregory CLEMENT , Tejun Heo , linux-ide-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Antoine =?iso-8859-1?Q?T=E9nart?= , Liam Girdwood , Thomas Petazzoni , Ezequiel Garcia , Maxime Ripard , Boris BREZILLON , Jason Cooper , Andrew Lunn , Sebastian Hesselbarth , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Lior Amsalem , Tawfik Bayouk , Nadav Haklai , Mark Rutland , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-ide@vger.kernel.org --5mCyUwZo2JvN/JJP Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Sat, Jan 17, 2015 at 09:48:57AM +0100, Hans de Goede wrote: > and leave these regulators on, rather then turn them of $random time, > because as I've advocated before (see the simplefb thread) there is > no simple magic moment when it is right to turn things off, so doing > it when userspace starts is more or less as good as any moment, and if > it turns out that that is not a good moment, then maybe we need to > re-think the turning off in general. Following your argument to the logical conclusion means we can never turn any regualtor off - we always have the risk that there's another shared user which is going to get a power bounce if we power down. More directly we'll also get people complaining that we're burning power pointlessly on their systems for devices they've not even got drivers enabled for. This powering down is something there's been user demand for. --5mCyUwZo2JvN/JJP Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJUumAcAAoJECTWi3JdVIfQlH0IAIaIzrngaQ6SB0xsjq9eZMgi sqS7M9Oi9AveSVZraYdpQ4AgmkgddW+Mqkn3eiojRw75prISheVi09T7veN5C0+t nq4MhUM8spaInxnT7Ns4GQP7wHwzhWohR6++b24V8olea2Mp+iUQ0C3e7cgxiJLQ vCQvE8CjYH6o6I57XLx2NsvheHh3CsOK6wdfJnb9f8e7kgK6E1vi9ICOvWsTBaMs BMzJojO0OgM3GqU9A6XIwbW8OvLUDMStN0lCRgRjXWgD19dZIuEqR4zfCzRXiIz+ CjLOYUZ5deaxrLjS5c4epyO37eBgfSwZfpAMLZpE3h9ANKG0ealiW6aIN71MtSY= =3ctk -----END PGP SIGNATURE----- --5mCyUwZo2JvN/JJP-- -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html