Documentation/gpu: Add entry for the DIO component

Cc: Mario Limonciello <[e-mail]>
Cc: Alex Deucher <[e-mail]>
Cc: Harry Wentland <[e-mail]>
Cc: Hamza Mahfooz <[e-mail]>
Cc: Christian König <[e-mail]>
Cc: Aurabindo Pillai <[e-mail]>
Reviewed-by: Mario Limonciello <[e-mail]>
Acked-by: Christian König <[e-mail]>
Acked-by: Hamza Mahfooz <[e-mail]>
Signed-off-by: Rodrigo Siqueira <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

Documentation/gpu/amdgpu/display/dcn-blocks.rst

···
 
 .. kernel-doc:: drivers/gpu/drm/amd/display/dc/inc/hw/opp.h
    :internal:
+
+DIO
+---
+
+.. kernel-doc:: drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.h
+   :doc: overview
+
+.. kernel-doc:: drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.h
+   :export:
+
+.. kernel-doc:: drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.h
+   :internal:

drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.h

···
  * Authors: AMD
  *
  */
+
+/**
+ * DOC: overview
+ *
+ * Display Input Output (DIO), is the display input and output unit in DCN. It
+ * includes output encoders to support different display output, like
+ * DisplayPort, HDMI, DVI interface, and others. It also includes the control
+ * and status channels for these interfaces.
+ */
+
 #ifndef __LINK_HWSS_DIO_H__
 #define __LINK_HWSS_DIO_H__