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drm/i915/dp: Read more DPCD registers on connection probe 

For parity with radeon and nouveau, and also because I suspect we're
going to need it to get format-conversion dongles right.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
hifive-unleashed-5.1
Adam Jackson 2011-07-12 17:38:02 -04:00 committed by Keith Packard
parent 1b9be9d09d
commit 9de88e6e89
1 changed files with 5 additions and 3 deletions
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8
drivers/gpu/drm/i915/intel_dp.c
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@ -52,7 +52,7 @@ struct intel_dp {
uint32_t color_range;
uint8_t link_bw;
uint8_t lane_count;
uint8_t dpcd[4];
uint8_t dpcd[8];
struct i2c_adapter adapter;
struct i2c_algo_dp_aux_data algo;
bool is_pch_edp;
@ -1678,8 +1678,10 @@ intel_dp_detect(struct drm_connector *connector, bool force)
else
status = g4x_dp_detect(intel_dp);
DRM_DEBUG_KMS("DPCD: %hx%hx%hx%hx\n", intel_dp->dpcd[0],
intel_dp->dpcd[1], intel_dp->dpcd[2], intel_dp->dpcd[3]);
DRM_DEBUG_KMS("DPCD: %hx%hx%hx%hx%hx%hx%hx%hx\n", intel_dp->dpcd[0],
intel_dp->dpcd[1], intel_dp->dpcd[2], intel_dp->dpcd[3],
intel_dp->dpcd[4], intel_dp->dpcd[5], intel_dp->dpcd[6],
intel_dp->dpcd[7]);
if (status != connector_status_connected)
return status;