From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932711Ab1CEBS6 (ORCPT ); Fri, 4 Mar 2011 20:18:58 -0500 Received: from kroah.org ([198.145.64.141]:50130 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760177Ab1CEA7z (ORCPT ); Fri, 4 Mar 2011 19:59:55 -0500 X-Mailbox-Line: From gregkh@clark.kroah.org Fri Mar 4 16:56:35 2011 Message-Id: <20110305005635.458998955@clark.kroah.org> User-Agent: quilt/0.48-11.2 Date: Fri, 04 Mar 2011 16:55:14 -0800 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Alex Deucher , Dave Airlie Subject: [09/73] Revert "drm/radeon/kms: switch back to min->max pll post divider iteration" In-Reply-To: <20110305005720.GA16162@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.37-stable review patch. If anyone has any objections, please let us know. ------------------ From: Alex Deucher commit bd6a60afeb4c9ada3ff27f1d13db1a2b5c11d8c0 upstream. This reverts commit a6f9761743bf35b052180f4a8bdae4d2cc0465f6. Remove this commit as it is no longer necessary. The relevant bugs were fixed properly in: drm/radeon/kms: hopefully fix pll issues for real (v3) 5b40ddf888398ce4cccbf3b9d0a18d90149ed7ff drm/radeon/kms: add missing frac fb div flag for dce4+ 9f4283f49f0a96a64c5a45fe56f0f8c942885eef This commit also broke certain ~5 Mhz modes on old arcade monitors, so reverting this commit fixes: https://bugzilla.kernel.org/show_bug.cgi?id=29502 Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/radeon/radeon_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/radeon/radeon_display.c +++ b/drivers/gpu/drm/radeon/radeon_display.c @@ -639,7 +639,7 @@ void radeon_compute_pll_legacy(struct ra max_fractional_feed_div = pll->max_frac_feedback_div; } - for (post_div = min_post_div; post_div <= max_post_div; ++post_div) { + for (post_div = max_post_div; post_div >= min_post_div; --post_div) { uint32_t ref_div; if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))