[PATCH 27/40] drm/amd/display/dc/dce110/dce110_compressor: Strip out unused function 'controller_id_to_index'

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

 drivers/gpu/drm/amd/amdgpu/../display/dc/dce110/dce110_compressor.c:429:14: warning: no previous prototype for ‘controller_id_to_index’ [-Wmissing-prototypes]

Cc: Harry Wentland <harry.wentland@xxxxxxx>
Cc: Leo Li <sunpeng.li@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: "Christian König" <christian.koenig@xxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: Lee Jones <lee.jones@xxxxxxxxxx>
Cc: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
---
 .../amd/display/dc/dce110/dce110_compressor.c | 25 -------------------
 1 file changed, 25 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c
index 18b0a69b0b1e8..44564a4742b52 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c
@@ -425,31 +425,6 @@ void get_max_support_fbc_buffersize(unsigned int *max_x, unsigned int *max_y)
 	 */
 }
 
-
-unsigned int controller_id_to_index(enum controller_id controller_id)
-{
-	unsigned int index = 0;
-
-	switch (controller_id) {
-	case CONTROLLER_ID_D0:
-		index = 0;
-		break;
-	case CONTROLLER_ID_D1:
-		index = 1;
-		break;
-	case CONTROLLER_ID_D2:
-		index = 2;
-		break;
-	case CONTROLLER_ID_D3:
-		index = 3;
-		break;
-	default:
-		break;
-	}
-	return index;
-}
-
-
 static const struct compressor_funcs dce110_compressor_funcs = {
 	.power_up_fbc = dce110_compressor_power_up_fbc,
 	.enable_fbc = dce110_compressor_enable_fbc,
-- 
2.25.1

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