From 1ebf169ad4dc68f18cc0dab35163b0f324fc6c41 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 23 May 2012 11:48:59 -0400 Subject: [PATCH] drm/radeon: fix XFX quirk Only override the ddc bus if the connector doesn't have a valid one. The existing code overrode the ddc bus for all connectors even if it had ddc bus. Fixes ddc on another XFX card with the same pci ids that was broken by the quirk overwriting the correct ddc bus. Reported-by: Mehdi Aqadjani Memar Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_atombios.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index f6e69b8c06c6..b1e3820df363 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -444,7 +444,9 @@ static bool radeon_atom_apply_quirks(struct drm_device *dev, */ if ((dev->pdev->device == 0x9498) && (dev->pdev->subsystem_vendor == 0x1682) && - (dev->pdev->subsystem_device == 0x2452)) { + (dev->pdev->subsystem_device == 0x2452) && + (i2c_bus->valid == false) && + !(supported_device & (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT))) { struct radeon_device *rdev = dev->dev_private; *i2c_bus = radeon_lookup_i2c_gpio(rdev, 0x93); }