From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Courbot Subject: Re: [PATCH v6 0/4] Runtime Interpreted Power Sequences Date: Thu, 13 Sep 2012 15:42:11 +0900 Message-ID: <4473898.CeAQBgUhKL@percival> References: <1347443867-18868-1-git-send-email-acourbot@nvidia.com> <1749811.4qrG1GZfBf@percival> <20120913062552.GB17869@opensource.wolfsonmicro.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: In-Reply-To: <20120913062552.GB17869@opensource.wolfsonmicro.com> Sender: linux-kernel-owner@vger.kernel.org To: Mark Brown Cc: Tomi Valkeinen , Stephen Warren , Thierry Reding , Simon Glass , Grant Likely , Rob Herring , Anton Vorontsov , David Woodhouse , Arnd Bergmann , Leela Krishna Amudala , "linux-tegra@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-fbdev@vger.kernel.org" , "devicetree-discuss@lists.ozlabs.org" , "linux-pm@vger.kernel.org" , "linux-doc@vger.kernel.org" List-Id: linux-tegra@vger.kernel.org On Thursday 13 September 2012 14:25:53 Mark Brown wrote: > On Thu, Sep 13, 2012 at 03:23:06PM +0900, Alex Courbot wrote: > > I understand the logic behind handling powering sequences in the device > > driver, but as we discussed for some classes of devices this might just > > not > > scale. I don't know how many different panels (each with different > > powering > > It would be sensible to make sure that the framework is done in such a > way that drivers can use it - there will be drivers (perhaps not display > ones) that have a known power sequence and which could benefit from the > ability to use library code to implement it based on the user simply > supplying named resources. Not sure I understand what you mean, but things should be working this way already - regulators and PWMs are acquired by name using the standard regulator_get() and pwm_get() functions. GPIOs do not, AFAIK, have a way to be referenced by name so their number is used instead. Alex.