From mboxrd@z Thu Jan 1 00:00:00 1970 From: Felipe Balbi Subject: Re: [PATCH V4 1/3] OPP: Redefine bindings to overcome shortcomings Date: Tue, 12 May 2015 11:19:45 -0500 Message-ID: <20150512161945.GE8699@saruman.tx.rr.com> References: Reply-To: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="HnQK338I3UIa/qiP" Return-path: Content-Disposition: inline In-Reply-To: Sender: linux-pm-owner@vger.kernel.org To: Viresh Kumar Cc: Rafael Wysocki , rob.herring@linaro.org, arnd.bergmann@linaro.org, nm@ti.com, broonie@kernel.org, mike.turquette@linaro.org, sboyd@codeaurora.org, thomas.petazzoni@free-electrons.com, devicetree@vger.kernel.org, kesavan.abhilash@gmail.com, linaro-kernel@lists.linaro.org, ta.omasab@gmail.com, linux-pm@vger.kernel.org, viswanath.puttagunta@linaro.org, santosh.shilimkar@oracle.com, olof@lixom.net, khilman@linaro.org, Sudeep.Holla@arm.com, grant.likely@linaro.org, linux-arm-kernel@lists.infradead.org, l.stach@pengutronix.de List-Id: devicetree@vger.kernel.org --HnQK338I3UIa/qiP Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, Apr 30, 2015 at 05:37:59PM +0530, Viresh Kumar wrote: > Current OPP (Operating performance point) DT bindings are proven to be > insufficient at multiple instances. >=20 > The shortcomings we are trying to solve here: >=20 > - Getting clock sharing information between CPUs. Single shared clock vs > independent clock per core vs shared clock per cluster. >=20 > - Support for specifying current levels along with voltages. >=20 > - Support for multiple regulators. >=20 > - Support for turbo modes. >=20 > - Other per OPP settings: transition latencies, disabled status, etc.? >=20 > - Expandability of OPPs in future. >=20 > This patch introduces new bindings "operating-points-v2" to get these pro= blems operating-points-v2 is kinda awkward, how about operating-points-extended, much like interrupts-extended ? Other than this, I very much like the new approach. Regards --=20 balbi --HnQK338I3UIa/qiP Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJVUighAAoJEIaOsuA1yqRE1/YP/A3nLJGjm1qsghOFoEkVMolt EVD1eYqOREbQOoHNgJloy/D9gCyz8kLJEjHj4ITslxfrpHhQQvQkWhjUEJsX2YDT bd3KomL5oHinmgpK5qMQBKsKYFXK90pYfRFWoUY+Va4MAOCLkSrlob9GmxwfLbiA XTJs2JYyncYzMqSNliAUzP//eJCL7VfnMZXoZSDlJrqfNR8exu+R+4MVLQdG3iLB zl9ZxAfIRlDPJeOB9ow6veL9KwxI8cE9QyeTh0cYt0T9SvupvJXCDvDN7Y8VJmiQ osEFLJFsa0JF1IkEgRUtDqv4h9CJAubYUOo1nU/8IcavWGOARVdCBNk/CfNeGGob BT88NM77JA1iiuaYKn2BFd518yK+EOYyz7JKZy+qvc3tvGyiTKV2iFVX9dRnzRrz lrBEQufXPzzZ3O2060DnxI/U+bTG2E/q2xL209C105UhW2KclS4BDAP0rXO1TUJ7 vdUxd+vUuWlOKmekMHv2D+RPRTXTV5jizqIqxhRsixak4uzqkKu+qKSBFBO0O7lX OPcUECWumgkA/7z5hM4kuUAsKSjh2UuejiUZlzmdm8EVB3M8ReTqvhaAJYv7I4no Y+rBj3zvhsHkxRBme+wwf2QTsaAv5emiXvAxZZgy32/i3rjL84vzdpjIoh2s/A2Y YLN+9UZdryV9Y9zgGRCi =8m7v -----END PGP SIGNATURE----- --HnQK338I3UIa/qiP--