From 08b9b9e5c6a3f2ccf1a5e257c21c6c77b2911b8d Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 18 May 2010 17:51:15 -0400 Subject: [PATCH] drm/radeon/kms: reset ddc_bus in object header parsing Some LVDS connectors don't have a ddc bus, so reset the ddc bus to invalid before parsing the next connector to avoid using stale ddc bus data. Should fix fdo bug 28164. Signed-off-by: Alex Deucher Cc: stable@kernel.org --- drivers/gpu/drm/radeon/radeon_atombios.c | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 9149e4a..c2c10e2 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -530,6 +530,8 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev) } /* look up gpio for ddc, hpd */ + ddc_bus.valid = false; + hpd.hpd = RADEON_HPD_NONE; if ((le16_to_cpu(path->usDeviceTag) & (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT)) == 0) { for (j = 0; j < con_obj->ucNumberOfObjects; j++) { @@ -585,9 +587,6 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev) break; } } - } else { - hpd.hpd = RADEON_HPD_NONE; - ddc_bus.valid = false; } /* needed for aux chan transactions */ -- 1.5.6.3