drm/i915: make transcoder_name return a string
Nicer for eDP (actually "EDP" instead of "D"), and makes future
expansion for DSI transcoders easier.
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/2ac55ed584e450fe154daecb6453dff8eede5e7d.1458070700.git.jani.nikula@intel.com
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index e5e2982..33e1311 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -125,7 +125,22 @@
TRANSCODER_EDP,
I915_MAX_TRANSCODERS
};
-#define transcoder_name(t) ((t) + 'A')
+
+static inline const char *transcoder_name(enum transcoder transcoder)
+{
+ switch (transcoder) {
+ case TRANSCODER_A:
+ return "A";
+ case TRANSCODER_B:
+ return "B";
+ case TRANSCODER_C:
+ return "C";
+ case TRANSCODER_EDP:
+ return "EDP";
+ default:
+ return "<invalid>";
+ }
+}
/*
* I915_MAX_PLANES in the enum below is the maximum (across all platforms)