drm/i915: Cleaning up intel_dp_hpd_pulse
Current DP detection has DPCD operations split across
intel_dp_hpd_pulse and intel_dp_detect which contains
duplicates as well. Also intel_dp_detect is called
during modes enumeration as well which will result
in multiple dpcd operations. So this patch tries
to solve both these by bringing all DPCD operations
in one single function and make intel_dp_detect
use existing values instead of repeating same steps.
v2: Pulled in a hunk from last patch of the series to
this patch. (Ander)
v3: Added MST hotplug handling. (Ander)
v4: Added a flag to check if detect is performed to
prevent multiple detects on hotplug. (Ander)
Tested-by: Nathan D Ciobanu <nathan.d.ciobanu@intel.com>
Signed-off-by: Sivakumar Thulasimani <sivakumar.thulasimani@intel.com>
Signed-off-by: Shubhangi Shrivastava <shubhangi.shrivastava@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
[anderco: fix parenthesis aligment]
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1459341326-13142-2-git-send-email-shubhangi.shrivastava@intel.com
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 6ac46d9..ed65a71 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -797,6 +797,7 @@
int link_rate;
uint8_t lane_count;
bool has_audio;
+ bool detect_done;
enum hdmi_force_audio force_audio;
bool limited_color_range;
bool color_range_auto;