From mboxrd@z Thu Jan 1 00:00:00 1970 From: Imre Deak Subject: Re: [PATCH v2 6/8] drm/i915: don't do BDW/HSW specific powerdomains init on other platforms Date: Fri, 22 Nov 2013 20:54:18 +0200 Message-ID: <1385146458.3665.36.camel@ideak-mobl> References: <1383326394-3933-1-git-send-email-imre.deak@intel.com> <1384434652-3206-1-git-send-email-imre.deak@intel.com> Reply-To: imre.deak@intel.com Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 7F148FB2DF for ; Fri, 22 Nov 2013 10:54:21 -0800 (PST) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org To: Paulo Zanoni Cc: Intel Graphics Development List-Id: intel-gfx@lists.freedesktop.org On Fri, 2013-11-22 at 14:09 -0200, Paulo Zanoni wrote: > 2013/11/14 Imre Deak : > > Signed-off-by: Imre Deak > > Since I assume all power wells will require some kind of > register-checking and hardware-touching at the init paths, shouldn't > we add power_well->init_hw() and call it once for each power well? So far HSW/BDW is the only instance that I know of, so we'd end up having empty stubs for the rest. > The problem with this series is that we're doing code changes for a case > we still didn't try to implement (multiple power wells), so sometimes > it gets hard to predict what exactly will be needed/used. Yea, I realize this is somewhat of a problem. This a preparation for future stuff, for which I do have an implementation only in my local tree.. But I tried to make clarifications in the logs to this effect. --Imre > > --- > > drivers/gpu/drm/i915/intel_pm.c | 3 +++ > > 1 file changed, 3 insertions(+) > > > > diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c > > index ee5aeb1..d5eacd8 100644 > > --- a/drivers/gpu/drm/i915/intel_pm.c > > +++ b/drivers/gpu/drm/i915/intel_pm.c > > @@ -5912,6 +5912,9 @@ void intel_power_domains_init_hw(struct drm_device *dev) > > intel_display_set_init_power(dev, true); > > intel_power_domains_resume(dev); > > > > + if (!(IS_HASWELL(dev) || IS_BROADWELL(dev))) > > + return; > > + > > /* We're taking over the BIOS, so clear any requests made by it since > > * the driver is in charge now. */ > > if (I915_READ(HSW_PWR_WELL_BIOS) & HSW_PWR_WELL_ENABLE_REQUEST) > > -- > > 1.8.4 > > > > _______________________________________________ > > Intel-gfx mailing list > > Intel-gfx@lists.freedesktop.org > > http://lists.freedesktop.org/mailman/listinfo/intel-gfx