linux-kernel - [247/272] drm/radeon/kms: switch back to min->max pll post divider iteration

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Date:	Tue, 15 Feb 2011 16:15:04 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Alex Deucher <alexdeucher@...il.com>,
	Dave Airlie <airlied@...hat.com>
Subject: [247/272] drm/radeon/kms: switch back to min->max pll post divider iteration

2.6.37-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Alex Deucher <alexdeucher@...il.com>

commit a6f9761743bf35b052180f4a8bdae4d2cc0465f6 upstream.

Seems more reliable.  Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=26552

Signed-off-by: Alex Deucher <alexdeucher@...il.com>
Signed-off-by: Dave Airlie <airlied@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 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
@@ -517,7 +517,7 @@ void radeon_compute_pll(struct radeon_pl
 		max_fractional_feed_div = pll->max_frac_feedback_div;
 	}
 
-	for (post_div = max_post_div; post_div >= min_post_div; --post_div) {
+	for (post_div = min_post_div; post_div <= max_post_div; ++post_div) {
 		uint32_t ref_div;
 
 		if ((pll->flags & RADEON_PLL_NO_ODD_POST_DIV) && (post_div & 1))


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