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ALSA: hda - Fix power of pins used for mute LED with vrefs

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Some pins are used for controlling the LED with the VREF value.
This patch changes the power behavior of such pins to be constantly
up.  A new state, pin_fixed, is introduced to nid_path to indicate
that the path contains the fixed pin.  This improves also the
readability a bit for other static routes, too.

Then a helper function snd_hda_gen_fix_pin_power() is called from the
codec driver for such fixed pins, and it will create fake paths
containing only these pins with pin_fixed=1 flag.

Reported-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2015-03-20 18:11:05 +01:00
parent fc0daafeb4
commit 6b275b1400
3 changed files with 38 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
sound/pci/hda/hda_generic.c
View File

@ -665,7 +665,7 @@ static bool is_active_nid(struct hda_codec *codec, hda_nid_t nid,
if (!path->stream_enabled)
continue;
/* ignore unplugged paths except for DAC/ADC */
if (!path->pin_enabled &&
if (!(path->pin_enabled || path->pin_fixed) &&
type != AC_WID_AUD_OUT && type != AC_WID_AUD_IN)
continue;
}
@ -1607,7 +1607,7 @@ static int check_aamix_out_path(struct hda_codec *codec, int path_idx)
return 0;
/* print_nid_path(codec, "output-aamix", path); */
path->active = false; /* unused as default */
path->pin_enabled = true; /* static route */
path->pin_fixed = true; /* static route */
return snd_hda_get_path_idx(codec, path);
}
@ -3044,7 +3044,7 @@ static int new_analog_input(struct hda_codec *codec, int input_idx,
if (path) {
print_nid_path(codec, "loopback-merge", path);
path->active = true;
path->pin_enabled = true; /* static route */
path->pin_fixed = true; /* static route */
path->stream_enabled = true; /* no DAC/ADC involved */
spec->loopback_merge_path =
snd_hda_get_path_idx(codec, path);
@ -3847,7 +3847,7 @@ static void parse_digital(struct hda_codec *codec)
continue;
print_nid_path(codec, "digout", path);
path->active = true;
path->pin_enabled = true; /* no jack detection */
path->pin_fixed = true; /* no jack detection */
spec->digout_paths[i] = snd_hda_get_path_idx(codec, path);
set_pin_target(codec, pin, PIN_OUT, false);
if (!nums) {
@ -3875,7 +3875,7 @@ static void parse_digital(struct hda_codec *codec)
if (path) {
print_nid_path(codec, "digin", path);
path->active = true;
path->pin_enabled = true; /* no jack */
path->pin_fixed = true; /* no jack */
spec->dig_in_nid = dig_nid;
spec->digin_path = snd_hda_get_path_idx(codec, path);
set_pin_target(codec, pin, PIN_IN, false);
@ -3959,8 +3959,8 @@ static hda_nid_t set_path_power(struct hda_codec *codec, hda_nid_t nid,
path->pin_enabled = pin_state;
if (stream_state >= 0)
path->stream_enabled = stream_state;
if (path->pin_enabled != pin_old ||
path->stream_enabled != stream_old) {
if ((!path->pin_fixed && path->pin_enabled != pin_old)
|| path->stream_enabled != stream_old) {
last = path_power_update(codec, path, true);
if (last)
changed = last;
@ -4136,6 +4136,29 @@ static void beep_power_hook(struct hda_beep *beep, bool on)
set_path_power(beep->codec, beep->nid, -1, on);
}
/**
* snd_hda_gen_fix_pin_power - Fix the power of the given pin widget to D0
* @codec: the HDA codec
* @pin: NID of pin to fix
*/
int snd_hda_gen_fix_pin_power(struct hda_codec *codec, hda_nid_t pin)
{
struct hda_gen_spec *spec = codec->spec;
struct nid_path *path;
path = snd_array_new(&spec->paths);
if (!path)
return -ENOMEM;
memset(path, 0, sizeof(*path));
path->depth = 1;
path->path[0] = pin;
path->active = true;
path->pin_fixed = true;
path->stream_enabled = true;
return 0;
}
EXPORT_SYMBOL_GPL(snd_hda_gen_fix_pin_power);
/*
* Jack detections for HP auto-mute and mic-switch
*/

2
sound/pci/hda/hda_generic.h
View File

@ -48,6 +48,7 @@ struct nid_path {
unsigned int ctls[NID_PATH_NUM_CTLS]; /* NID_PATH_XXX_CTL */
bool active:1; /* activated by driver */
bool pin_enabled:1; /* pins are enabled */
bool pin_fixed:1; /* path with fixed pin */
bool stream_enabled:1; /* stream is active */
};
@ -343,5 +344,6 @@ unsigned int snd_hda_gen_path_power_filter(struct hda_codec *codec,
hda_nid_t nid,
unsigned int power_state);
void snd_hda_gen_stream_pm(struct hda_codec *codec, hda_nid_t nid, bool on);
int snd_hda_gen_fix_pin_power(struct hda_codec *codec, hda_nid_t pin);
#endif /* __SOUND_HDA_GENERIC_H */

6
sound/pci/hda/patch_sigmatel.c
View File

@ -4225,6 +4225,12 @@ static int stac_parse_auto_config(struct hda_codec *codec)
if (err < 0)
return err;
if (spec->vref_mute_led_nid) {
err = snd_hda_gen_fix_pin_power(codec, spec->vref_mute_led_nid);
if (err < 0)
return err;
}
/* setup analog beep controls */
if (spec->anabeep_nid > 0) {
err = stac_auto_create_beep_ctls(codec,