drm/i915: Change the placement of some static functions in intel_dp.c

These static helper functions are required to be used during
fallback link rate implemnetation so they need to be placed at the top
of the file.

v3:
* Add cleanup to other patch (Mika Kahola)
v2:
* Dont move around functions declared in intel_drv.h (Rodrigo Vivi)

Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1477524358-16563-4-git-send-email-manasi.d.navare@intel.com

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 8f313c1..1063afe 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -213,6 +213,81 @@ intel_dp_downstream_max_dotclock(struct intel_dp *intel_dp)
        return max_dotclk;
 }
 
+static int
+intel_dp_sink_rates(struct intel_dp *intel_dp, const int **sink_rates)
+{
+       if (intel_dp->num_sink_rates) {
+               *sink_rates = intel_dp->sink_rates;
+               return intel_dp->num_sink_rates;
+       }
+
+       *sink_rates = default_rates;
+
+       return (intel_dp_max_link_bw(intel_dp) >> 3) + 1;
+}
+
+static int
+intel_dp_source_rates(struct intel_dp *intel_dp, const int **source_rates)
+{
+       struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+       struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
+       int size;
+
+       if (IS_BROXTON(dev_priv)) {
+               *source_rates = bxt_rates;
+               size = ARRAY_SIZE(bxt_rates);
+       } else if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
+               *source_rates = skl_rates;
+               size = ARRAY_SIZE(skl_rates);
+       } else {
+               *source_rates = default_rates;
+               size = ARRAY_SIZE(default_rates);
+       }
+
+       /* This depends on the fact that 5.4 is last value in the array */
+       if (!intel_dp_source_supports_hbr2(intel_dp))
+               size--;
+
+       return size;
+}
+
+static int intersect_rates(const int *source_rates, int source_len,
+                          const int *sink_rates, int sink_len,
+                          int *common_rates)
+{
+       int i = 0, j = 0, k = 0;
+
+       while (i < source_len && j < sink_len) {
+               if (source_rates[i] == sink_rates[j]) {
+                       if (WARN_ON(k >= DP_MAX_SUPPORTED_RATES))
+                               return k;
+                       common_rates[k] = source_rates[i];
+                       ++k;
+                       ++i;
+                       ++j;
+               } else if (source_rates[i] < sink_rates[j]) {
+                       ++i;
+               } else {
+                       ++j;
+               }
+       }
+       return k;
+}
+
+static int intel_dp_common_rates(struct intel_dp *intel_dp,
+                                int *common_rates)
+{
+       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(intel_dp, &source_rates);
+
+       return intersect_rates(source_rates, source_len,
+                              sink_rates, sink_len,
+                              common_rates);
+}
+
 static enum drm_mode_status
 intel_dp_mode_valid(struct drm_connector *connector,
                    struct drm_display_mode *mode)
@@ -1291,19 +1366,6 @@ intel_dp_aux_init(struct intel_dp *intel_dp)
        intel_dp->aux.transfer = intel_dp_aux_transfer;
 }
 
-static int
-intel_dp_sink_rates(struct intel_dp *intel_dp, const int **sink_rates)
-{
-       if (intel_dp->num_sink_rates) {
-               *sink_rates = intel_dp->sink_rates;
-               return intel_dp->num_sink_rates;
-       }
-
-       *sink_rates = default_rates;
-
-       return (intel_dp_max_link_bw(intel_dp) >> 3) + 1;
-}
-
 bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp)
 {
        struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
@@ -1316,31 +1378,6 @@ bool intel_dp_source_supports_hbr2(struct intel_dp *intel_dp)
                return false;
 }
 
-static int
-intel_dp_source_rates(struct intel_dp *intel_dp, const int **source_rates)
-{
-       struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
-       struct drm_i915_private *dev_priv = to_i915(dig_port->base.base.dev);
-       int size;
-
-       if (IS_BROXTON(dev_priv)) {
-               *source_rates = bxt_rates;
-               size = ARRAY_SIZE(bxt_rates);
-       } else if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
-               *source_rates = skl_rates;
-               size = ARRAY_SIZE(skl_rates);
-       } else {
-               *source_rates = default_rates;
-               size = ARRAY_SIZE(default_rates);
-       }
-
-       /* This depends on the fact that 5.4 is last value in the array */
-       if (!intel_dp_source_supports_hbr2(intel_dp))
-               size--;
-
-       return size;
-}
-
 static void
 intel_dp_set_clock(struct intel_encoder *encoder,
                   struct intel_crtc_state *pipe_config)
@@ -1375,43 +1412,6 @@ intel_dp_set_clock(struct intel_encoder *encoder,
        }
 }
 
-static int intersect_rates(const int *source_rates, int source_len,
-                          const int *sink_rates, int sink_len,
-                          int *common_rates)
-{
-       int i = 0, j = 0, k = 0;
-
-       while (i < source_len && j < sink_len) {
-               if (source_rates[i] == sink_rates[j]) {
-                       if (WARN_ON(k >= DP_MAX_SUPPORTED_RATES))
-                               return k;
-                       common_rates[k] = source_rates[i];
-                       ++k;
-                       ++i;
-                       ++j;
-               } else if (source_rates[i] < sink_rates[j]) {
-                       ++i;
-               } else {
-                       ++j;
-               }
-       }
-       return k;
-}
-
-static int intel_dp_common_rates(struct intel_dp *intel_dp,
-                                int *common_rates)
-{
-       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(intel_dp, &source_rates);
-
-       return intersect_rates(source_rates, source_len,
-                              sink_rates, sink_len,
-                              common_rates);
-}
-
 static void snprintf_int_array(char *str, size_t len,
                               const int *array, int nelem)
 {