linux-kernel - [PATCH] radeon: add AGPMode 1 quirk for RV250

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Message-ID: <1353356251.19434.22.camel@x61.thuisdomein>
Date:	Mon, 19 Nov 2012 21:17:31 +0100
From:	Paul Bolle <pebolle@...cali.nl>
To:	David Airlie <airlied@...ux.ie>
Cc:	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] radeon: add AGPMode 1 quirk for RV250

The Intel 82855PM host bridge / Mobility FireGL 9000 RV250 combination
in an (outdated) ThinkPad T41 needs AGPMode 1 for suspend/resume (under
KMS, that is). So add a quirk for it.

(Change R250 to RV250 in comment for preceding quirk too.)

Signed-off-by: Paul Bolle <pebolle@...cali.nl>
---
0) Last tested on v3.6.7. The patch was cherry-picked on top of
v3.7-rc6.

1) A similar patch was submitted twenty months ago via
https://bugzilla.redhat.com/show_bug.cgi?id=531825 , but nothing
happened after that.

 drivers/gpu/drm/radeon/radeon_agp.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_agp.c b/drivers/gpu/drm/radeon/radeon_agp.c
index 10ea17a..4243334 100644
--- a/drivers/gpu/drm/radeon/radeon_agp.c
+++ b/drivers/gpu/drm/radeon/radeon_agp.c
@@ -69,9 +69,12 @@ static struct radeon_agpmode_quirk radeon_agpmode_quirk_list[] = {
 	/* Intel 82830 830 Chipset Host Bridge / Mobility M6 LY Needs AGPMode 2 (fdo #17360)*/
 	{ PCI_VENDOR_ID_INTEL, 0x3575, PCI_VENDOR_ID_ATI, 0x4c59,
 		PCI_VENDOR_ID_DELL, 0x00e3, 2},
-	/* Intel 82852/82855 host bridge / Mobility FireGL 9000 R250 Needs AGPMode 1 (lp #296617) */
+	/* Intel 82852/82855 host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 (lp #296617) */
 	{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4c66,
 		PCI_VENDOR_ID_DELL, 0x0149, 1},
+	/* Intel 82855PM host bridge / Mobility FireGL 9000 RV250 Needs AGPMode 1 for suspend/resume */
+	{ PCI_VENDOR_ID_INTEL, 0x3340, PCI_VENDOR_ID_ATI, 0x4c66,
+		PCI_VENDOR_ID_IBM, 0x0531, 1},
 	/* Intel 82852/82855 host bridge / Mobility 9600 M10 RV350 Needs AGPMode 1 (deb #467460) */
 	{ PCI_VENDOR_ID_INTEL, 0x3580, PCI_VENDOR_ID_ATI, 0x4e50,
 		0x1025, 0x0061, 1},
-- 
1.7.7.6

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