From mboxrd@z Thu Jan 1 00:00:00 1970 From: akpm@linux-foundation.org Subject: + cyber2000fb-avoid-palette-corruption-at-higher-clocks.patch added to -mm tree Date: Mon, 23 Aug 2010 12:33:19 -0700 Message-ID: <201008231933.o7NJXJ9R010514@imap1.linux-foundation.org> Reply-To: linux-kernel@vger.kernel.org Return-path: Received: from smtp1.linux-foundation.org ([140.211.169.13]:60062 "EHLO smtp1.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752509Ab0HWTd1 (ORCPT ); Mon, 23 Aug 2010 15:33:27 -0400 Sender: mm-commits-owner@vger.kernel.org List-Id: mm-commits@vger.kernel.org To: mm-commits@vger.kernel.org Cc: linux@rainbow-software.org, rmk@arm.linux.org.uk The patch titled cyber2000fb: avoid palette corruption at higher clocks has been added to the -mm tree. Its filename is cyber2000fb-avoid-palette-corruption-at-higher-clocks.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: cyber2000fb: avoid palette corruption at higher clocks From: Ondrej Zary When 1280x1024@75Hz mode is set, console palette is not set properly - sometimes the background is white, sometimes yellow and text colors are also messed up. This does not happen at 1280x1024@60Hz and below. It seems that the HW needs some time before setting the palette - maybe the PLL needs more time to lock at higher speeds. This patch fixes the problem but without knowing what register to check for PLL lock(?), the delay might be excessive. Signed-off-by: Ondrej Zary Cc: Russell King Signed-off-by: Andrew Morton --- drivers/video/cyber2000fb.c | 3 +++ 1 file changed, 3 insertions(+) diff -puN drivers/video/cyber2000fb.c~cyber2000fb-avoid-palette-corruption-at-higher-clocks drivers/video/cyber2000fb.c --- a/drivers/video/cyber2000fb.c~cyber2000fb-avoid-palette-corruption-at-higher-clocks +++ a/drivers/video/cyber2000fb.c @@ -502,6 +502,9 @@ static void cyber2000fb_set_timing(struc cyber2000_grphw(0xb9, 0x80, cfb); cyber2000_grphw(0xb9, 0x00, cfb); + /* wait (for the PLL?) to avoid palette corruption at higher clocks */ + msleep(1000); + cfb->ramdac_ctrl = hw->ramdac; cyber2000fb_write_ramdac_ctrl(cfb); _ Patches currently in -mm which might be from linux@rainbow-software.org are cyber2000fb-avoid-palette-corruption-at-higher-clocks.patch