diff --git a/drivers/gpu/drm/radeon/atom.h b/drivers/gpu/drm/radeon/atom.h
index 1bf06c91cd95..5de0563b63d2 100644
--- a/drivers/gpu/drm/radeon/atom.h
+++ b/drivers/gpu/drm/radeon/atom.h
@@ -154,6 +154,13 @@ bool atom_parse_data_header(struct atom_context *ctx, int index, uint16_t *size,
 bool atom_parse_cmd_header(struct atom_context *ctx, int index,
 			   uint8_t *frev, uint8_t *crev);
 int atom_allocate_fb_scratch(struct atom_context *ctx);
+
+struct i2c_msg;
+struct i2c_adapter;
+int radeon_atom_hw_i2c_xfer(struct i2c_adapter *i2c_adap,
+			    struct i2c_msg *msgs, int num);
+u32 radeon_atom_hw_i2c_func(struct i2c_adapter *adap);
+
 #include "atom-types.h"
 #include "atombios.h"
 #include "ObjectID.h"
diff --git a/drivers/gpu/drm/radeon/radeon_i2c.c b/drivers/gpu/drm/radeon/radeon_i2c.c
index aa61b3cb4049..e543d993f73e 100644
--- a/drivers/gpu/drm/radeon/radeon_i2c.c
+++ b/drivers/gpu/drm/radeon/radeon_i2c.c
@@ -34,10 +34,6 @@
 #include "radeon.h"
 #include "atom.h"
 
-extern int radeon_atom_hw_i2c_xfer(struct i2c_adapter *i2c_adap,
-				   struct i2c_msg *msgs, int num);
-extern u32 radeon_atom_hw_i2c_func(struct i2c_adapter *adap);
-
 bool radeon_ddc_probe(struct radeon_connector *radeon_connector, bool use_aux)
 {
 	u8 out = 0x0;