Attachment 91611 Details for Bug 73067 – add quirk

[patch] add quirk

0001-drm-radeon-dpm-add-quirk-for-HIS-RV770.patch (text/plain), 1.11 KB, created by Alex Deucher on 2014-01-07 18:53:49 UTC

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Creator: Alex Deucher

Created: 2014-01-07 18:53:49 UTC

Size: 1.11 KB

patch

obsolete

>From 26871b6f90d348950edd33d604761d6337229bdf Mon Sep 17 00:00:00 2001
>From: Alex Deucher <alexander.deucher@amd.com>
>Date: Tue, 7 Jan 2014 13:51:51 -0500
>Subject: [PATCH] drm/radeon/dpm: add quirk for HIS RV770
>
>mclk switching doesn't seem to work reliably on this
>card.
>
>Bug:
>https://bugs.freedesktop.org/show_bug.cgi?id=73067
>
>Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
>Cc: stable@vger.kernel.org
>---
> drivers/gpu/drm/radeon/rv770_dpm.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
>diff --git a/drivers/gpu/drm/radeon/rv770_dpm.c b/drivers/gpu/drm/radeon/rv770_dpm.c
>index 4aaeb11..6e4b49d 100644
>--- a/drivers/gpu/drm/radeon/rv770_dpm.c
>+++ b/drivers/gpu/drm/radeon/rv770_dpm.c
>@@ -2532,6 +2532,12 @@ bool rv770_dpm_vblank_too_short(struct radeon_device *rdev)
> 	    (rdev->pdev->subsystem_device == 0x1c42))
> 		switch_limit = 200;
> 
>+	/* HIS RV770 */
>+	if ((rdev->pdev->device == 0x9442) &&
>+	    (rdev->pdev->subsystem_vendor == 0x1787) &&
>+	    (rdev->pdev->subsystem_device == 0x2266))
>+		switch_limit = 0xffffffff; /* disable mclk switching */
>+
> 	if (vblank_time < switch_limit)
> 		return true;
> 	else
>-- 
>1.8.3.1
>

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Attachments on bug 73067: 91222 | 91223 | 91224 | 91227 | 91232 | 91233 | 91254 | 91611

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