| From | Luis Henriques <> | Subject | [PATCH 051/115] drm/radeon: use frac fb div on RS780/RS880 | Date | Mon, 20 May 2013 11:50:51 +0100 |
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3.5.7.13 -stable review patch. If anyone has any objections, please let me know.
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From: Alex Deucher <alexander.deucher@amd.com>
commit 411678288d61ba17afe1f8afed92200be6bbc65d upstream.
Monitors seem to prefer it. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=37696
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> [ luis: backported to 3.5: - adjust context - use pll->flags instead of radeon_crtc->pll_flags ] Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- drivers/gpu/drm/radeon/atombios_crtc.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 08b71a3..c4e646f 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -573,6 +573,9 @@ 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; + /* use frac fb div on RS780/RS880 */ + if ((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880)) + 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 { -- 1.8.1.2
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