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drm/bridge: synopsys: dw-hdmi-qp: Workaround for Hisense TV

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This patch workaround for no sound issue on Hisense TV which
seems to need AUDI ACR packet when initial stage.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Change-Id: I192b631b29d33ad6571f70e062788c45b917803c
This commit is contained in:
Sugar Zhang
2022-08-11 18:56:40 +08:00
parent 928790df25
commit e4405c819b
1 changed files with 33 additions and 0 deletions
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33
drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c
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@@ -568,6 +568,36 @@ void dw_hdmi_qp_set_channel_allocation(struct dw_hdmi_qp *hdmi, unsigned int ca)
}
EXPORT_SYMBOL_GPL(dw_hdmi_qp_set_channel_allocation);
static int dw_hdmi_qp_init_audio_infoframe(struct dw_hdmi_qp *hdmi)
{
struct hdmi_audio_infoframe frame;
u8 infoframe_buf[HDMI_INFOFRAME_SIZE(AUDIO)];
int ret = 0;
hdmi_audio_infoframe_init(&frame);
frame.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM;
frame.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM;
frame.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM;
frame.channels = 2;
ret = hdmi_audio_infoframe_pack(&frame, infoframe_buf,
sizeof(infoframe_buf));
if (ret < 0) {
dev_err(hdmi->dev, "%s: Failed to pack audio infoframe: %d\n",
__func__, ret);
return ret;
}
regmap_bulk_write(hdmi->regm, PKT_AUDI_CONTENTS1, &infoframe_buf[3], 2);
hdmi_modb(hdmi,
PKTSCHED_ACR_TX_EN | PKTSCHED_AUDI_TX_EN,
PKTSCHED_ACR_TX_EN | PKTSCHED_AUDI_TX_EN,
PKTSCHED_PKT_EN);
return 0;
}
void dw_hdmi_qp_set_audio_infoframe(struct dw_hdmi_qp *hdmi,
struct hdmi_codec_params *hparms)
{
@@ -2334,6 +2364,9 @@ static void dw_hdmi_qp_bridge_atomic_enable(struct drm_bridge *bridge,
hdmi->dclk_en = true;
mutex_unlock(&hdmi->audio_mutex);
}
dw_hdmi_qp_init_audio_infoframe(hdmi);
dw_hdmi_qp_audio_enable(hdmi);
hdmi_clk_regenerator_update_pixel_clock(hdmi);
extcon_set_state_sync(hdmi->extcon, EXTCON_DISP_HDMI, true);
handle_plugged_change(hdmi, true);