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ALSA: hda/hdmi: Add module option to disable audio component binding

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As the recent regression showed, we want sometimes to turn off the
audio component binding just for debugging.  This patch adds the
module option to control it easily without compilation.

Fixes: ade49db337 ("ALSA: hda/hdmi - Allow audio component for AMD/ATI and Nvidia HDMI")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=207223
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200415162523.27499-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2020-04-15 18:25:23 +02:00
parent 9a6418487b
commit b392350ec3
1 changed files with 9 additions and 0 deletions
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9
sound/pci/hda/patch_hdmi.c
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@ -38,6 +38,10 @@ static bool static_hdmi_pcm;
module_param(static_hdmi_pcm, bool, 0644);
MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per ELD info");
static bool enable_acomp = true;
module_param(enable_acomp, bool, 0444);
MODULE_PARM_DESC(enable_acomp, "Enable audio component binding (default=yes)");
struct hdmi_spec_per_cvt {
hda_nid_t cvt_nid;
int assigned;
@ -2505,6 +2509,11 @@ static void generic_acomp_init(struct hda_codec *codec,
{
struct hdmi_spec *spec = codec->spec;
if (!enable_acomp) {
codec_info(codec, "audio component disabled by module option\n");
return;
}
spec->port2pin = port2pin;
setup_drm_audio_ops(codec, ops);
if (!snd_hdac_acomp_init(&codec->bus->core, &spec->drm_audio_ops,