From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Schwab Subject: Re: [PATCH] radeonfb: (#2) Implement proper workarounds for PLL accesses Date: Fri, 08 Apr 2005 23:11:12 +0200 Message-ID: References: <1110519743.5810.13.camel@gaston> <1110672745.5787.60.camel@gaston> <1112743901.9568.67.camel@gaston> <1112827655.9518.194.camel@gaston> <21d7e9970504071422349426eb@mail.gmail.com> <1112914795.9568.320.camel@gaston> <1112923186.9567.349.camel@gaston> Mime-Version: 1.0 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <1112923186.9567.349.camel@gaston> (Benjamin Herrenschmidt's message of "Fri, 08 Apr 2005 11:19:46 +1000") Sender: linux-kernel-owner@vger.kernel.org List-Id: Cc: Dave Airlie , Linux Kernel list , Linux Fbdev development list Benjamin Herrenschmidt writes: > On Fri, 2005-04-08 at 01:58 +0200, Andreas Schwab wrote: >> Benjamin Herrenschmidt writes: >>=20 >> > Yes, that's very extreme, I suspect somebody is banging on set_par= or >> > something like that. >>=20 >> fb_setcolreg is it. > > Ok, what about that patch: > > --- > > This patch adds to the fbdev interface a set_cmap callback that allow > the driver to "batch" palette changes. This is useful for drivers lik= e > radeonfb which might require lenghtly workarounds on palette accesses= , > thus allowing to factor out those workarounds efficiently. This makes it better. But there is still a delay of half a second, and there is an annoying flicker when switching from X to the console. Andreas. --=20 Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux Products GmbH, Maxfeldstra=DFe 5, 90409 N=FCrnberg, Germany Key fingerprint =3D 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."