From 112e70ae165bb19d3d305614761c4fc5985fe336 Mon Sep 17 00:00:00 2001 From: jsg Date: Thu, 4 Apr 2024 07:29:56 +0000 Subject: [PATCH] drm/amd/display: Fix noise issue on HDMI AV mute From Leo Ma 066bbc4306445f16e529a13a6e8d05ec6074416e in linux-6.6.y/6.6.24 69e3be6893a7e668660b05a966bead82bbddb01d in mainline linux --- sys/dev/pci/drm/amd/display/dc/dcn30/dcn30_hwseq.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/sys/dev/pci/drm/amd/display/dc/dcn30/dcn30_hwseq.c b/sys/dev/pci/drm/amd/display/dc/dcn30/dcn30_hwseq.c index 255713ec29b..ba47a1c8eec 100644 --- a/sys/dev/pci/drm/amd/display/dc/dcn30/dcn30_hwseq.c +++ b/sys/dev/pci/drm/amd/display/dc/dcn30/dcn30_hwseq.c @@ -619,10 +619,20 @@ void dcn30_set_avmute(struct pipe_ctx *pipe_ctx, bool enable) if (pipe_ctx == NULL) return; - if (dc_is_hdmi_signal(pipe_ctx->stream->signal) && pipe_ctx->stream_res.stream_enc != NULL) + if (dc_is_hdmi_signal(pipe_ctx->stream->signal) && pipe_ctx->stream_res.stream_enc != NULL) { pipe_ctx->stream_res.stream_enc->funcs->set_avmute( pipe_ctx->stream_res.stream_enc, enable); + + /* Wait for two frame to make sure AV mute is sent out */ + if (enable) { + pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg, CRTC_STATE_VACTIVE); + pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg, CRTC_STATE_VBLANK); + pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg, CRTC_STATE_VACTIVE); + pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg, CRTC_STATE_VBLANK); + pipe_ctx->stream_res.tg->funcs->wait_for_state(pipe_ctx->stream_res.tg, CRTC_STATE_VACTIVE); + } + } } void dcn30_update_info_frame(struct pipe_ctx *pipe_ctx) -- 2.20.1