[3.5.y.z,extended,stable] Patch "drm/radeon/dce32+: use fractional fb dividers for high" has been added to staging queue

Message ID 1357591045-21260-1-git-send-email-herton.krzesinski@canonical.com
State New
Headers show

Commit Message

Herton Ronaldo Krzesinski Jan. 7, 2013, 8:37 p.m.
This is a note to let you know that I have just added a patch titled

    drm/radeon/dce32+: use fractional fb dividers for high

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:


If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see



From faeabd7fa1c23e4dbf4d1fc0fe9ba412171ca464 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 13 Nov 2012 18:03:41 -0500
Subject: [PATCH] drm/radeon/dce32+: use fractional fb dividers for high

commit a02dc74b317d78298cb0587b9b1f6f741fd5c139 upstream.

Fixes flickering with some high res montiors.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
[ herton: on 3.5, set pll->flags instead of radeon_crtc->pll_flags ]
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
 drivers/gpu/drm/radeon/atombios_crtc.c |    2 ++
 1 file changed, 2 insertions(+)



diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 25b8014..80eb8d5 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -577,6 +577,8 @@  static u32 atombios_adjust_pll(struct drm_crtc *crtc,
 		/* use frac fb div on APUs */
 		if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE61(rdev))
 			pll->flags |= RADEON_PLL_USE_FRAC_FB_DIV;
+		if (ASIC_IS_DCE32(rdev) && mode->clock > 165000)
+			pll->flags |= RADEON_PLL_USE_FRAC_FB_DIV;
 	} else {
 		pll->flags |= RADEON_PLL_LEGACY;