[PATCH 2/3] drm/i915: Introduce new intel_output_name()

[Paulo Zanoni <przanoni@gmail.com>]

From: Damien Lespiau <damien.lespiau@intel.com>

That we can use for debugging purposes.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 13 +++++++++++++
 drivers/gpu/drm/i915/intel_drv.h     |  1 +
 2 files changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 7cc67b3..034952c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10253,6 +10253,19 @@ static bool has_edp_a(struct drm_device *dev)
 	return true;
 }
 
+const char *intel_output_name(int output)
+{
+	static const char *names[] = {
+		"Unused", "Analog", "DVO", "SDVO", "LVDS", "TV", "HDMI",
+		"DisplayPort", "eDP", "DSI", "Unknown"
+	};
+
+	if (output < 0 || output >= ARRAY_SIZE(names))
+		return "Invalid";
+
+	return names[output];
+}
+
 static void intel_setup_outputs(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 46aea6c..25bbbb5 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -625,6 +625,7 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
 
 
 /* intel_display.c */
+const char *intel_output_name(int output);
 int intel_pch_rawclk(struct drm_device *dev);
 void intel_mark_busy(struct drm_device *dev);
 void intel_mark_fb_busy(struct drm_i915_gem_object *obj,
-- 
1.8.4.2