drm/i915/sdvo: Use an integer mapping for supported tv format modes

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Eric Anholt <eric@anholt.net>

1 files changed, 11 insertions, 23 deletions

diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 300f110fd180..ce8e4432d1c5 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -98,7 +98,7 @@ struct intel_sdvo {
         bool is_tv;
 
         /* This is for current tv format name */
-        char *tv_format_name;
+        int tv_format_index;
 
         /**
          * This is set if we treat the device as HDMI, instead of DVI.
@@ -141,7 +141,7 @@ struct intel_sdvo_connector {
         uint16_t output_flag;
 
         /* This contains all current supported TV format */
-        char *tv_format_supported[TV_FORMAT_NUM];
+        u8 tv_format_supported[TV_FORMAT_NUM];
         int   format_supported_num;
         struct drm_property *tv_format_property;
         struct drm_property *tv_format_name_property[TV_FORMAT_NUM];
@@ -958,13 +958,9 @@ static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo,
 static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo)
 {
         struct intel_sdvo_tv_format format;
-        uint32_t format_map, i;
-
-        for (i = 0; i < TV_FORMAT_NUM; i++)
-                if (tv_format_names[i] == intel_sdvo->tv_format_name)
-                        break;
+        uint32_t format_map;
 
-        format_map = 1 << i;
+        format_map = 1 << intel_sdvo->tv_format_index;
         memset(&format, 0, sizeof(format));
         memcpy(&format, &format_map, min(sizeof(format), sizeof(format_map)));
 
@@ -1614,11 +1610,7 @@ static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
         /* Read the list of supported input resolutions for the selected TV
          * format.
          */
-        for (i = 0; i < TV_FORMAT_NUM; i++)
-                if (tv_format_names[i] ==  intel_sdvo->tv_format_name)
-                        break;
-
-        format_map = (1 << i);
+        format_map = 1 << intel_sdvo->tv_format_index;
         memcpy(&tv_res, &format_map,
                min(sizeof(format_map), sizeof(struct intel_sdvo_sdtv_resolution_request)));
 
@@ -1640,7 +1632,6 @@ static void intel_sdvo_get_tv_modes(struct drm_connector *connector)
                         if (nmode)
                                 drm_mode_probed_add(connector, nmode);
                 }
-
 }
 
 static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
@@ -1768,11 +1759,11 @@ intel_sdvo_set_property(struct drm_connector *connector,
                 if (val >= TV_FORMAT_NUM)
                         return -EINVAL;
 
-                if (intel_sdvo->tv_format_name ==
+                if (intel_sdvo->tv_format_index ==
                     intel_sdvo_connector->tv_format_supported[val])
                         return 0;
 
-                intel_sdvo->tv_format_name = intel_sdvo_connector->tv_format_supported[val];
+                intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[val];
                 changed = true;
         } else if (IS_TV_OR_LVDS(intel_sdvo_connector)) {
                 cmd = 0;
@@ -2271,11 +2262,8 @@ static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
 
         intel_sdvo_connector->format_supported_num = 0;
         for (i = 0 ; i < TV_FORMAT_NUM; i++)
-                if (format_map & (1 << i)) {
-                        intel_sdvo_connector->tv_format_supported
-                        [intel_sdvo_connector->format_supported_num++] =
-                        tv_format_names[i];
-                }
+                if (format_map & (1 << i))
+                        intel_sdvo_connector->tv_format_supported[intel_sdvo_connector->format_supported_num++] = i;
 
 
         intel_sdvo_connector->tv_format_property =
@@ -2285,9 +2273,9 @@ static bool intel_sdvo_tv_create_property(struct intel_sdvo *intel_sdvo,
         for (i = 0; i < intel_sdvo_connector->format_supported_num; i++)
                 drm_property_add_enum(
                                 intel_sdvo_connector->tv_format_property, i,
-                                i, intel_sdvo_connector->tv_format_supported[i]);
+                                i, tv_format_names[intel_sdvo_connector->tv_format_supported[i]]);
 
-        intel_sdvo->tv_format_name = intel_sdvo_connector->tv_format_supported[0];
+        intel_sdvo->tv_format_index = intel_sdvo_connector->tv_format_supported[0];
         drm_connector_attach_property(&intel_sdvo_connector->base.base,
                                       intel_sdvo_connector->tv_format_property, 0);
         return true;