BPI/pi-linux
5
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/sunxi-hdmi: auto-skip audio when sink has no audio capability

Browse Source
This commit is contained in:
Qubot 2026-05-31 22:39:53 +08:00
parent 57fd4dd297
commit 99950980d2
3 changed files with 28 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
bsp/drivers/drm/sunxi_device/hardware/lowlevel_hdmi20/dw_avp.c
View File

@ -811,6 +811,12 @@ int dw_audio_on(void)
struct dw_hdmi_dev_s *hdmi = dw_get_hdmi();
struct dw_audio_s *audio = &hdmi->audio_dev;
if (!dw_sink_support_audio()) {
hdmi_inf("sink does not advertise audio, skip audio enable\n");
hdmi->audio_on = 0;
return 0;
}
_dw_audio_param_print(audio);
ret = dw_hdmi_ctrl_update();
@ -826,7 +832,7 @@ int dw_audio_on(void)
}
if (_dw_audio_check_params() == false) {
hdmi_err("dw audio check params is invalid!\n");
hdmi_wrn("dw audio check params is invalid, skip audio path\n");
goto exit;
}

19
bsp/drivers/drm/sunxi_device/hardware/lowlevel_hdmi20/dw_edid.c
View File

@ -981,6 +981,25 @@ bool dw_sink_support_scdc(void)
return sink->edid_mHdmiForumvsdb.mSCDC_Present;
}
int dw_sink_support_audio(void)
{
struct sink_info_s *sink = dw_get_sink();
if (IS_ERR_OR_NULL(sink)) {
shdmi_err(sink);
return 0;
}
/*
* Prefer CTA basic-audio bit, and fallback to SAD entries for sinks
* that only expose detailed audio descriptors.
*/
if (sink->edid_mBasicAudioSupport || sink->edid_mSadIndex > 0)
return 1;
return 0;
}
int dw_sink_support_only_yuv420(u32 vic)
{
struct sink_info_s *sink = dw_get_sink();

2
bsp/drivers/drm/sunxi_device/hardware/lowlevel_hdmi20/dw_edid.h
View File

@ -51,6 +51,8 @@ int dw_sink_support_cea_vic(u32 code);
bool dw_sink_support_scdc(void);
int dw_sink_support_audio(void);
int dw_edid_exit(void);
int dw_edid_init(void);