drm: Remove duplicate drm_mode_cea_vic()

The same function had already been merged with a different name. Remove
the duplicate one but reuse some of its kerneldoc fragments for the
existing implementation.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

4 files changed, 11 insertions, 27 deletions

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 67aa0dd68250..02da919f6c38 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1516,11 +1516,14 @@ u8 *drm_find_cea_extension(struct edid *edid)
 }
 EXPORT_SYMBOL(drm_find_cea_extension);
 
-/*
- * Looks for a CEA mode matching given drm_display_mode.
- * Returns its CEA Video ID code, or 0 if not found.
+/**
+ * drm_match_cea_mode - look for a CEA mode matching given mode
+ * @to_match: display mode
+ *
+ * Returns the CEA Video ID (VIC) of the mode or 0 if it isn't a CEA-861
+ * mode.
  */
-u8 drm_match_cea_mode(struct drm_display_mode *to_match)
+u8 drm_match_cea_mode(const struct drm_display_mode *to_match)
 {
         struct drm_display_mode *cea_mode;
         u8 mode;
@@ -2114,22 +2117,3 @@ int drm_add_modes_noedid(struct drm_connector *connector,
         return num_modes;
 }
 EXPORT_SYMBOL(drm_add_modes_noedid);
-
-/**
- * drm_mode_cea_vic - return the CEA-861 VIC of a given mode
- * @mode: mode
- *
- * RETURNS:
- * The VIC number, 0 in case it's not a CEA-861 mode.
- */
-uint8_t drm_mode_cea_vic(const struct drm_display_mode *mode)
-{
-        uint8_t i;
-
-        for (i = 0; i < drm_num_cea_modes; i++)
-                if (drm_mode_equal(mode, &edid_cea_modes[i]))
-                        return i + 1;
-
-        return 0;
-}
-EXPORT_SYMBOL(drm_mode_cea_vic);
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 31c0205685ab..f61cb7998c72 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -770,7 +770,7 @@ intel_dp_mode_fixup(struct drm_encoder *encoder,
                  * CEA-861-E - 5.1 Default Encoding Parameters
                  * VESA DisplayPort Ver.1.2a - 5.1.1.1 Video Colorimetry
                  */
-                if (bpp != 18 && drm_mode_cea_vic(adjusted_mode) > 1)
+                if (bpp != 18 && drm_match_cea_mode(adjusted_mode) > 1)
                         intel_dp->color_range = DP_COLOR_RANGE_16_235;
                 else
                         intel_dp->color_range = 0;
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index 3ea0c8b6a00f..f131dfc54b01 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -348,7 +348,7 @@ static void intel_hdmi_set_avi_infoframe(struct drm_encoder *encoder,
                         avi_if.body.avi.ITC_EC_Q_SC |= DIP_AVI_RGB_QUANT_RANGE_FULL;
         }
 
-        avi_if.body.avi.VIC = drm_mode_cea_vic(adjusted_mode);
+        avi_if.body.avi.VIC = drm_match_cea_mode(adjusted_mode);
 
         intel_set_infoframe(encoder, &avi_if);
 }
@@ -781,7 +781,7 @@ bool intel_hdmi_mode_fixup(struct drm_encoder *encoder,
         if (intel_hdmi->color_range_auto) {
                 /* See CEA-861-E - 5.1 Default Encoding Parameters */
                 if (intel_hdmi->has_hdmi_sink &&
-                    drm_mode_cea_vic(adjusted_mode) > 1)
+                    drm_match_cea_mode(adjusted_mode) > 1)
                         intel_hdmi->color_range = SDVO_COLOR_RANGE_16_235;
                 else
                         intel_hdmi->color_range = 0;
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 33b46d9694ea..d07a8cdf998e 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1077,7 +1077,7 @@ static bool intel_sdvo_mode_fixup(struct drm_encoder *encoder,
         if (intel_sdvo->color_range_auto) {
                 /* See CEA-861-E - 5.1 Default Encoding Parameters */
                 if (intel_sdvo->has_hdmi_monitor &&
-                    drm_mode_cea_vic(adjusted_mode) > 1)
+                    drm_match_cea_mode(adjusted_mode) > 1)
                         intel_sdvo->color_range = SDVO_COLOR_RANGE_16_235;
                 else
                         intel_sdvo->color_range = 0;