diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2010-11-24 17:37:17 +0000 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2010-11-24 17:37:17 +0000 |
| commit | ba84cd1f2b5dd49bda9300c5a11373f7e14c3c66 (patch) | |
| tree | 45b7fe1c0c146ad1b995dd95399c0d5614e920c4 /drivers/gpu/drm/i915/intel_sdvo.c | |
| parent | cc840f77036fa0a141951967cd010014f088b5e0 (diff) | |
drm/i915/sdvo: Always add a 30ms delay to make SDVO TV detection reliable
Commit d09c23de intended to add a 30ms delay to give the ADD time to
detect any TVs connected. However, it used the sdvo->is_tv flag to do so
which is dependent upon the previous detection result and not whether the
output supports TVs.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Diffstat (limited to 'drivers/gpu/drm/i915/intel_sdvo.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_sdvo.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index bf643100dec..d97e6cb52d3 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -1377,10 +1377,12 @@ intel_sdvo_detect(struct drm_connector *connector, bool force) if (!intel_sdvo_write_cmd(intel_sdvo, SDVO_CMD_GET_ATTACHED_DISPLAYS, NULL, 0)) return connector_status_unknown; - if (intel_sdvo->is_tv) { - /* add 30ms delay when the output type is SDVO-TV */ + + /* add 30ms delay when the output type might be TV */ + if (intel_sdvo->caps.output_flags & + (SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_CVBS0)) mdelay(30); - } + if (!intel_sdvo_read_response(intel_sdvo, &response, 2)) return connector_status_unknown; |