diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c index b0c08ee6bc2c..bf4436d7aaab 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_stream_encoder.c @@ -902,6 +902,19 @@ void enc1_stream_encoder_stop_dp_info_packets( } +void enc1_stream_encoder_reset_fifo( + struct stream_encoder *enc) +{ + struct dcn10_stream_encoder *enc1 = DCN10STRENC_FROM_STRENC(enc); + + /* set DIG_START to 0x1 to reset FIFO */ + REG_UPDATE(DIG_FE_CNTL, DIG_START, 1); + udelay(100); + + /* write 0 to take the FIFO out of reset */ + REG_UPDATE(DIG_FE_CNTL, DIG_START, 0); +} + void enc1_stream_encoder_dp_blank( struct dc_link *link, struct stream_encoder *enc) @@ -1587,6 +1600,8 @@ static const struct stream_encoder_funcs dcn10_str_enc_funcs = { enc1_stream_encoder_send_immediate_sdp_message, .stop_dp_info_packets = enc1_stream_encoder_stop_dp_info_packets, + .reset_fifo = + enc1_stream_encoder_reset_fifo, .dp_blank = enc1_stream_encoder_dp_blank, .dp_unblank = |