drm/radeon/atombios_encoders: Move 'radeon_atom_get_tv_timings()'s prototype into shared location

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/radeon/radeon_atombios.c:1791:6: warning: no previous prototype for ‘radeon_atom_get_tv_timings’ [-Wmissing-prototypes]
 1791 | bool radeon_atom_get_tv_timings(struct radeon_device *rdev, int index,
 | ^~~~~~~~~~~~~~~~~~~~~~~~~~

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index cc5ee1b3af84..683de198e18d 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -33,6 +33,7 @@
 #include <drm/radeon_drm.h>
 
 #include "atom.h"
+#include "radeon_atombios.h"
 #include "radeon.h"
 #include "radeon_asic.h"
 #include "radeon_audio.h"
@@ -296,10 +297,6 @@ static void radeon_atom_backlight_exit(struct radeon_encoder *encoder)
 
 #endif
 
-/* evil but including atombios.h is much worse */
-bool radeon_atom_get_tv_timings(struct radeon_device *rdev, int index,
-				struct drm_display_mode *mode);
-
 static bool radeon_atom_mode_fixup(struct drm_encoder *encoder,
 				   const struct drm_display_mode *mode,
 				   struct drm_display_mode *adjusted_mode)