Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a02dc74b authored by Alex Deucher's avatar Alex Deucher
Browse files

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



Fixes flickering with some high res montiors.

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
CC: stable@vger.kernel.org
parent 0d0b3e74

drivers/gpu/drm/radeon/atombios_crtc.c

+2 −0
Original line number Diff line number Diff line
@@ -561,6 +561,8 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc, 
		/* use frac fb div on APUs */

		if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE61(rdev))

			radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;

		if (ASIC_IS_DCE32(rdev) && mode->clock > 165000)

			radeon_crtc->pll_flags |= RADEON_PLL_USE_FRAC_FB_DIV;

	} else {

		radeon_crtc->pll_flags |= RADEON_PLL_LEGACY;