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drm/bridge: synopsys: Recover sound for XRUN routine

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This patch add audio reset in prepare stage to clean audio FIFO
to recover sound from XRUN state.

Change-Id: I3808be7973306cc6f8d377f5eb5a0bcec844ab16
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
This commit is contained in:
Sugar Zhang
2023-09-22 15:19:38 +08:00
parent 352863bfa2
commit 19820cc653
1 changed files with 18 additions and 0 deletions
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drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
+18
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@@ -132,6 +132,23 @@ static int dw_hdmi_i2s_hw_params(struct device *dev, void *data,
return 0;
}
static int dw_hdmi_i2s_prepare(struct device *dev, void *data,
struct hdmi_codec_daifmt *fmt,
struct hdmi_codec_params *hparms)
{
struct dw_hdmi_i2s_audio_data *audio = data;
struct dw_hdmi *hdmi = audio->hdmi;
dw_hdmi_audio_disable(hdmi);
hdmi_write(audio, HDMI_AUD_CONF0_SW_RESET, HDMI_AUD_CONF0);
hdmi_write(audio, (u8)~HDMI_MC_SWRSTZ_I2SSWRST_REQ, HDMI_MC_SWRSTZ);
dw_hdmi_audio_enable(hdmi);
return 0;
}
static int dw_hdmi_i2s_audio_startup(struct device *dev, void *data)
{
struct dw_hdmi_i2s_audio_data *audio = data;
@@ -198,6 +215,7 @@ static int dw_hdmi_i2s_hook_plugged_cb(struct device *dev, void *data,
static struct hdmi_codec_ops dw_hdmi_i2s_ops = {
.hw_params = dw_hdmi_i2s_hw_params,
.prepare = dw_hdmi_i2s_prepare,
.audio_startup = dw_hdmi_i2s_audio_startup,
.audio_shutdown = dw_hdmi_i2s_audio_shutdown,
.get_eld = dw_hdmi_i2s_get_eld,