linux-kernel - [200/262] drm/radeon/kms: Add MSI quirk for HP RS690

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Message-Id: <20111109212720.728790150@clark.kroah.org>
Date:	Wed, 09 Nov 2011 13:28:42 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Alex Deucher <alexander.deucher@....com>,
	Dave Airlie <airlied@...hat.com>
Subject: [200/262] drm/radeon/kms: Add MSI quirk for HP RS690

3.0-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@....com>

commit b362105f7f5223fa4d2e03ceeea0e51da754ccc6 upstream.

Some HP laptops only seem to work with MSIs.  This
looks like a platform/bios bug.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=37679

Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Dave Airlie <airlied@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/gpu/drm/radeon/radeon_irq_kms.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -118,6 +118,13 @@ static bool radeon_msi_ok(struct radeon_
 	if (rdev->flags & RADEON_IS_AGP)
 		return false;
 
+	/* Quirks */
+	/* HP RS690 only seems to work with MSIs. */
+	if ((rdev->pdev->device == 0x791f) &&
+	    (rdev->pdev->subsystem_vendor == 0x103c) &&
+	    (rdev->pdev->subsystem_device == 0x30c2))
+		return true;
+
 	if (rdev->flags & RADEON_IS_IGP) {
 		/* APUs work fine with MSIs */
 		if (rdev->family >= CHIP_PALM)


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