diff options
| author |   Ville Syrjälä <ville.syrjala@linux.intel.com> | 2015-03-12 17:10:33 +0200 |
|---|---|---|
| committer |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-03-20 11:48:07 +0100 |
| commit | 2ecae76ad6c6da042dbbcce0084bd6b6c5700845 (patch) | |
| tree | 8a0aca71296edae5062a3999ce1f31f729fc1fa0 /drivers/gpu/drm/i915/intel_dp.c | |
| parent | drm/i915: Fully separate source vs. sink rates (diff) | |
| download | linux-dev-2ecae76ad6c6da042dbbcce0084bd6b6c5700845.tar.xz linux-dev-2ecae76ad6c6da042dbbcce0084bd6b6c5700845.zip | |
drm/i915: Hide the source vs. sink rate handling from intel_dp_compute_config()
intel_dp_compute_config() only really needs to know the rates supported
by both source and sink, so hide the raw source and sink arrays from it.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 7553f08d87e1..45c35681eb48 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1195,9 +1195,9 @@ intel_dp_set_clock(struct intel_encoder *encoder, } } -static int intel_supported_rates(const int *source_rates, int source_len, - const int *sink_rates, int sink_len, - int *supported_rates) +static int intersect_rates(const int *source_rates, int source_len, + const int *sink_rates, int sink_len, + int *supported_rates) { int i = 0, j = 0, k = 0; @@ -1216,6 +1216,21 @@ static int intel_supported_rates(const int *source_rates, int source_len, return k; } +static int intel_supported_rates(struct intel_dp *intel_dp, + int *supported_rates) +{ + struct drm_device *dev = intel_dp_to_dev(intel_dp); + const int *source_rates, *sink_rates; + int source_len, sink_len; + + sink_len = intel_dp_sink_rates(intel_dp, &sink_rates); + source_len = intel_dp_source_rates(dev, &source_rates); + + return intersect_rates(source_rates, source_len, + sink_rates, sink_len, + supported_rates); +} + static int rate_to_index(int find, const int *rates) { int i = 0; @@ -1246,17 +1261,10 @@ intel_dp_compute_config(struct intel_encoder *encoder, int max_clock; int bpp, mode_rate; int link_avail, link_clock; - const int *sink_rates; - int supported_rates[8] = {0}; - const int *source_rates; - int source_len, sink_len, supported_len; - - sink_len = intel_dp_sink_rates(intel_dp, &sink_rates); - - source_len = intel_dp_source_rates(dev, &source_rates); + int supported_rates[DP_MAX_SUPPORTED_RATES] = {}; + int supported_len; - supported_len = intel_supported_rates(source_rates, source_len, - sink_rates, sink_len, supported_rates); + supported_len = intel_supported_rates(intel_dp, supported_rates); /* No common link rates between source and sink */ WARN_ON(supported_len <= 0); @@ -1355,7 +1363,8 @@ found: if (INTEL_INFO(dev)->gen >= 9 && intel_dp->supported_rates[0]) { intel_dp->rate_select = - rate_to_index(supported_rates[clock], sink_rates); + rate_to_index(supported_rates[clock], + intel_dp->supported_rates); intel_dp->link_bw = 0; } |