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Commit bd6a60af authored by Alex Deucher's avatar Alex Deucher Committed by Dave Airlie
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Revert "drm/radeon/kms: switch back to min->max pll post divider iteration" 

This reverts commit a6f97617.

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)
5b40ddf8
drm/radeon/kms: add missing frac fb div flag for dce4+
9f4283f4

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: default avatarAlex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent d8204a37

drivers/gpu/drm/radeon/radeon_display.c

+1 −1
Original line number Diff line number Diff line
@@ -971,7 +971,7 @@ void radeon_compute_pll_legacy(struct radeon_pll *pll, 
		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))