From mboxrd@z Thu Jan 1 00:00:00 1970 From: Siva Chandra Subject: Re: [PATCH] drm/i915: Add a DRM property "psr" Date: Tue, 18 Mar 2014 13:53:56 -0700 Message-ID: References: <1395172267-9203-1-git-send-email-sivachandra@chromium.org> <20140318130620.07fa8680@jbarnes-desktop> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-ve0-f173.google.com (mail-ve0-f173.google.com [209.85.128.173]) by gabe.freedesktop.org (Postfix) with ESMTP id BBDBB6E52C for ; Tue, 18 Mar 2014 13:53:57 -0700 (PDT) Received: by mail-ve0-f173.google.com with SMTP id oy12so7704264veb.18 for ; Tue, 18 Mar 2014 13:53:57 -0700 (PDT) In-Reply-To: <20140318130620.07fa8680@jbarnes-desktop> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Jesse Barnes Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Tue, Mar 18, 2014 at 1:06 PM, Jesse Barnes wrote: > On Tue, 18 Mar 2014 12:51:07 -0700 > Siva Chandra wrote: > >> This property helps one turn PSR "on" and "off" via xrandr. >> The default value is same as that of the module param i915.enable_psr. >> >> Signed-off-by: Siva Chandra >> --- > > So are you using this in Chromium for disabling PSR in cases where it > doesn't work? Or to optimize power consumption when the kernel driver > gets it wrong? Or just for debug? We are testing a few PSR panels; Having a knob to turn PSR on and off would be of great convenience for manual testing and for test scripts. Thanks, Siva Chandra