openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

ALSA: HDA: Remove unconnected PCM devices for Intel HDMI 

Some newer chips have more than one HDMI output, but usually not
all of them are exposed as physical jacks. Removing the unused
PCM devices (as indicated by BIOS in the pin config default) will
reduce user confusion as they currently have to choose between
several HDMI devices, some of them not working anyway.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
David Henningsson 2010-11-23 10:23:40 +01:00 committed by Takashi Iwai
parent d0fa15e098
commit 116dcde638
1 changed files with 32 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
sound/pci/hda/patch_hdmi.c
View File

@ -904,23 +904,28 @@ static int hdmi_add_pin(struct hda_codec *codec, hda_nid_t pin_nid)
spec->pin[spec->num_pins] = pin_nid;
spec->num_pins++;
/*
* It is assumed that converter nodes come first in the node list and
* hence have been registered and usable now.
*/
return hdmi_read_pin_conn(codec, pin_nid);
}
static int hdmi_add_cvt(struct hda_codec *codec, hda_nid_t nid)
{
int i, found_pin = 0;
struct hdmi_spec *spec = codec->spec;
if (spec->num_cvts >= MAX_HDMI_CVTS) {
snd_printk(KERN_WARNING
"HDMI: no space for converter %d\n", nid);
return -E2BIG;
for (i = 0; i < spec->num_pins; i++)
if (nid == spec->pin_cvt[i]) {
found_pin = 1;
break;
}
if (!found_pin) {
snd_printdd("HDMI: Skipping node %d (no connection)\n", nid);
return -EINVAL;
}
if (snd_BUG_ON(spec->num_cvts >= MAX_HDMI_CVTS))
return -E2BIG;
spec->cvt[spec->num_cvts] = nid;
spec->num_cvts++;
@ -931,6 +936,8 @@ static int hdmi_parse_codec(struct hda_codec *codec)
{
hda_nid_t nid;
int i, nodes;
int num_tmp_cvts = 0;
hda_nid_t tmp_cvt[MAX_HDMI_CVTS];
nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid);
if (!nid || nodes < 0) {
@ -941,6 +948,7 @@ static int hdmi_parse_codec(struct hda_codec *codec)
for (i = 0; i < nodes; i++, nid++) {
unsigned int caps;
unsigned int type;
unsigned int config;
caps = snd_hda_param_read(codec, nid, AC_PAR_AUDIO_WIDGET_CAP);
type = get_wcaps_type(caps);
@ -950,17 +958,32 @@ static int hdmi_parse_codec(struct hda_codec *codec)
switch (type) {
case AC_WID_AUD_OUT:
hdmi_add_cvt(codec, nid);
if (num_tmp_cvts >= MAX_HDMI_CVTS) {
snd_printk(KERN_WARNING
"HDMI: no space for converter %d\n", nid);
continue;
}
tmp_cvt[num_tmp_cvts] = nid;
num_tmp_cvts++;
break;
case AC_WID_PIN:
caps = snd_hda_param_read(codec, nid, AC_PAR_PIN_CAP);
if (!(caps & (AC_PINCAP_HDMI | AC_PINCAP_DP)))
continue;
config = snd_hda_codec_read(codec, nid, 0,
AC_VERB_GET_CONFIG_DEFAULT, 0);
if (get_defcfg_connect(config) == AC_JACK_PORT_NONE)
continue;
hdmi_add_pin(codec, nid);
break;
}
}
for (i = 0; i < num_tmp_cvts; i++)
hdmi_add_cvt(codec, tmp_cvt[i]);
/*
* G45/IbexPeak don't support EPSS: the unsolicited pin hot plug event
* can be lost and presence sense verb will become inaccurate if the