From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alex Deucher , Ben Hutchings , Weng Meiling Subject: [PATCH 3.4 160/214] drm/radeon/dce32+: use fractional fb dividers for high clocks Date: Wed, 4 Jun 2014 21:18:43 -0700 Message-Id: <20140605041701.160045283@linuxfoundation.org> In-Reply-To: <20140605041639.638675216@linuxfoundation.org> References: <20140605041639.638675216@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alex Deucher commit a02dc74b317d78298cb0587b9b1f6f741fd5c139 upstream. Fixes flickering with some high res montiors. Signed-off-by: Alex Deucher [bwh: Backported to 3.2: use pll->flags instead of radeon_crtc->pll_flags] Signed-off-by: Ben Hutchings Cc: Weng Meiling Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/radeon/atombios_crtc.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -573,6 +573,8 @@ static u32 atombios_adjust_pll(struct dr /* 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;