diff options
| author | Adam Jackson <ajax@redhat.com> | 2012-09-20 22:42:45 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-10-02 18:06:07 +0200 |
| commit | 232351777cd0fe2341f917d28bf130df2b44bf8a (patch) | |
| tree | d87db183b51bc5bb848508e0436bed177c7fb2d0 /drivers | |
| parent | drm/dp: Document DP spec versions for various DPCD registers (diff) | |
| download | linux-232351777cd0fe2341f917d28bf130df2b44bf8a.tar.xz linux-232351777cd0fe2341f917d28bf130df2b44bf8a.zip | |
drm/dp: Make sink count DP 1.2 aware
Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 4f2a38181491..c63f54e84847 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -2101,13 +2101,12 @@ intel_dp_detect_dpcd(struct intel_dp *intel_dp) /* If we're HPD-aware, SINK_COUNT changes dynamically */ hpd = !!(intel_dp->downstream_ports[0] & DP_DS_PORT_HPD); if (hpd) { - uint8_t sink_count; + uint8_t reg; if (!intel_dp_aux_native_read_retry(intel_dp, DP_SINK_COUNT, - &sink_count, 1)) + ®, 1)) return connector_status_unknown; - sink_count &= DP_SINK_COUNT_MASK; - return sink_count ? connector_status_connected - : connector_status_disconnected; + return DP_GET_SINK_COUNT(reg) ? connector_status_connected + : connector_status_disconnected; } /* If no HPD, poke DDC gently */ |