drm/i915: Don't copy the DP source rates arrays
The source rates don't change, so we can just point the caller at the
const arrays.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Sonika Jindal <sonika.jindal@intel.com>
Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index f71ede7..12dd56b 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1160,22 +1160,18 @@
}
static int
-intel_read_source_rates(struct intel_dp *intel_dp, int *source_rates)
+intel_dp_source_rates(struct intel_dp *intel_dp, const int **source_rates)
{
struct drm_device *dev = intel_dp_to_dev(intel_dp);
- int i;
- int max_default_rate;
- if (INTEL_INFO(dev)->gen >= 9 && intel_dp->supported_rates[0]) {
- for (i = 0; i < ARRAY_SIZE(gen9_rates); ++i)
- source_rates[i] = gen9_rates[i];
- } else {
- /* Index of the max_link_bw supported + 1 */
- max_default_rate = (intel_dp_max_link_bw(intel_dp) >> 3) + 1;
- for (i = 0; i < max_default_rate; ++i)
- source_rates[i] = default_rates[i];
+ if (INTEL_INFO(dev)->gen >= 9) {
+ *source_rates = gen9_rates;
+ return ARRAY_SIZE(gen9_rates);
}
- return i;
+
+ *source_rates = default_rates;
+
+ return (intel_dp_max_link_bw(intel_dp) >> 3) + 1;
}
static void
@@ -1272,12 +1268,12 @@
int link_avail, link_clock;
int sink_rates[8];
int supported_rates[8] = {0};
- int source_rates[8];
+ const int *source_rates;
int source_len, sink_len, supported_len;
sink_len = intel_read_sink_rates(intel_dp, sink_rates);
- source_len = intel_read_source_rates(intel_dp, source_rates);
+ source_len = intel_dp_source_rates(intel_dp, &source_rates);
supported_len = intel_supported_rates(source_rates, source_len,
sink_rates, sink_len, supported_rates);