Attachment 88451 Details for Bug 45334 – possible fix

[patch] possible fix

0001-drm-radeon-don-t-share-PPLLs-on-DCE4.1.patch (text/plain), 1.08 KB, created by Alex Deucher on 2013-10-31 20:45:45 UTC

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Creator: Alex Deucher

Created: 2013-10-31 20:45:45 UTC

Size: 1.08 KB

patch

obsolete

>From e63d6c95079174e1d91628066e5c31e034649c58 Mon Sep 17 00:00:00 2001
>From: Alex Deucher <alexander.deucher@amd.com>
>Date: Thu, 31 Oct 2013 16:43:27 -0400
>Subject: [PATCH] drm/radeon: don't share PPLLs on DCE4.1
>
>Sharing PPLLs seems to cause problems on some boards.
>
>Bug:
>https://bugs.freedesktop.org/show_bug.cgi?id=45334
>
>Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
>Cc: stable@vger.kernel.org
>---
> drivers/gpu/drm/radeon/atombios_crtc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
>index bf87f6d..86d9ee0 100644
>--- a/drivers/gpu/drm/radeon/atombios_crtc.c
>+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
>@@ -1753,7 +1753,7 @@ static int radeon_atom_pick_pll(struct drm_crtc *crtc)
> 				if (pll != ATOM_PPLL_INVALID)
> 					return pll;
> 			}
>-		} else {
>+		} else if (!ASIC_IS_DCE41(rdev)) { /* Don't share PLLs on DCE4.1 chips */
> 			/* use the same PPLL for all monitors with the same clock */
> 			pll = radeon_get_shared_nondp_ppll(crtc);
> 			if (pll != ATOM_PPLL_INVALID)
>-- 
>1.8.3.1
>

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Attachments on bug 45334: 56256 | 56257 | 58659 | 58660 | 58661 | 58662 | 62834 | 62835 | 62837 | 63735 | 63736 | 88413 | 88451

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