[PATCH 08/12] drm/amd/display: Remove two unused variables 'speakers' and 'channels' and remove unused function 'speakers_to_channels'

[Caio Novais]

Compiling AMD GPU drivers displays two warnings:

drivers/gpu/drm/amd/amdgpu/../display/dc/dcn31/dcn31_apg.c: In function 
???apg31_se_audio_setup???:
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn31/dcn31_apg.c:117:18: warning: 
variable ???channels??? set but not used [-Wunused-but-set-variable]
and
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn31/dcn31_apg.c:116:18: warning: 
variable ???speakers??? set but not used [-Wunused-but-set-variable]

Get rid of them by removing the variables and the function
"speakers_to_channels".

Signed-off-by: Caio Novais <caionov...@usp.br>
---
 .../gpu/drm/amd/display/dc/dcn31/dcn31_apg.c  | 39 -------------------
 1 file changed, 39 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_apg.c 
b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_apg.c
index 24e9ff65434d..e94d0ba915ce 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_apg.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_apg.c
@@ -72,40 +72,6 @@ static void apg31_disable(
        REG_UPDATE(APG_CONTROL2, APG_ENABLE, 0);
 }
 
-static union audio_cea_channels speakers_to_channels(
-       struct audio_speaker_flags speaker_flags)
-{
-       union audio_cea_channels cea_channels = {0};
-
-       /* these are one to one */
-       cea_channels.channels.FL = speaker_flags.FL_FR;
-       cea_channels.channels.FR = speaker_flags.FL_FR;
-       cea_channels.channels.LFE = speaker_flags.LFE;
-       cea_channels.channels.FC = speaker_flags.FC;
-
-       /* if Rear Left and Right exist move RC speaker to channel 7
-        * otherwise to channel 5
-        */
-       if (speaker_flags.RL_RR) {
-               cea_channels.channels.RL_RC = speaker_flags.RL_RR;
-               cea_channels.channels.RR = speaker_flags.RL_RR;
-               cea_channels.channels.RC_RLC_FLC = speaker_flags.RC;
-       } else {
-               cea_channels.channels.RL_RC = speaker_flags.RC;
-       }
-
-       /* FRONT Left Right Center and REAR Left Right Center are exclusive */
-       if (speaker_flags.FLC_FRC) {
-               cea_channels.channels.RC_RLC_FLC = speaker_flags.FLC_FRC;
-               cea_channels.channels.RRC_FRC = speaker_flags.FLC_FRC;
-       } else {
-               cea_channels.channels.RC_RLC_FLC = speaker_flags.RLC_RRC;
-               cea_channels.channels.RRC_FRC = speaker_flags.RLC_RRC;
-       }
-
-       return cea_channels;
-}
-
 static void apg31_se_audio_setup(
        struct apg *apg,
        unsigned int az_inst,
@@ -113,17 +79,12 @@ static void apg31_se_audio_setup(
 {
        struct dcn31_apg *apg31 = DCN31_APG_FROM_APG(apg);
 
-       uint32_t speakers = 0;
-       uint32_t channels = 0;
 
        ASSERT(audio_info);
        /* This should not happen.it does so we don't get BSOD*/
        if (audio_info == NULL)
                return;
 
-       speakers = audio_info->flags.info.ALLSPEAKERS;
-       channels = speakers_to_channels(audio_info->flags.speaker_flags).all;
-
        /* DisplayPort only allows for one audio stream with stream ID 0 */
        REG_UPDATE(APG_CONTROL2, APG_DP_AUDIO_STREAM_ID, 0);
 
-- 
2.40.0