Commit 6ac1c753 authored by Dave Stevenson's avatar Dave Stevenson Committed by Maxime Ripard

drm/vc4: hdmi: Reset audio infoframe on encoder_enable if previously streaming

If the encoder is disabled and re-enabled (eg mode change) all infoframes
are reset, whilst the audio subsystem know nothing about this change.
The driver therefore needs to reinstate the audio infoframe for
itself.
Signed-off-by: default avatarDave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: default avatarMaxime Ripard <maxime@cerno.tech>
Tested-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
Tested-by: default avatarHoegeun Kwon <hoegeun.kwon@samsung.com>
Tested-by: default avatarStefan Wahren <stefan.wahren@i2se.com>
Link: https://patchwork.freedesktop.org/patch/msgid/cd579ccc2c9b9d2fce0ebaf32f847cedb0e4a7a2.1599120059.git-series.maxime@cerno.tech
parent 094864bd
......@@ -308,8 +308,16 @@ static void vc4_hdmi_set_audio_infoframe(struct drm_encoder *encoder)
static void vc4_hdmi_set_infoframes(struct drm_encoder *encoder)
{
struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
vc4_hdmi_set_avi_infoframe(encoder);
vc4_hdmi_set_spd_infoframe(encoder);
/*
* If audio was streaming, then we need to reenabled the audio
* infoframe here during encoder_enable.
*/
if (vc4_hdmi->audio.streaming)
vc4_hdmi_set_audio_infoframe(encoder);
}
static void vc4_hdmi_encoder_disable(struct drm_encoder *encoder)
......@@ -694,6 +702,7 @@ static void vc4_hdmi_audio_reset(struct vc4_hdmi *vc4_hdmi)
struct device *dev = &vc4_hdmi->pdev->dev;
int ret;
vc4_hdmi->audio.streaming = false;
ret = vc4_hdmi_stop_packet(encoder, HDMI_INFOFRAME_TYPE_AUDIO);
if (ret)
dev_err(dev, "Failed to stop audio infoframe: %d\n", ret);
......@@ -797,6 +806,7 @@ static int vc4_hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd,
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
vc4_hdmi_set_audio_infoframe(encoder);
vc4_hdmi->audio.streaming = true;
if (vc4_hdmi->variant->phy_rng_enable)
vc4_hdmi->variant->phy_rng_enable(vc4_hdmi);
......@@ -815,6 +825,8 @@ static int vc4_hdmi_audio_trigger(struct snd_pcm_substream *substream, int cmd,
if (vc4_hdmi->variant->phy_rng_disable)
vc4_hdmi->variant->phy_rng_disable(vc4_hdmi);
vc4_hdmi->audio.streaming = false;
break;
default:
break;
......
......@@ -85,6 +85,8 @@ struct vc4_hdmi_audio {
int channels;
struct snd_dmaengine_dai_dma_data dma_data;
struct snd_pcm_substream *substream;
bool streaming;
};
/* General HDMI hardware state. */
......
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