diff options
author | Takashi Iwai <tiwai@suse.de> | 2011-10-14 13:22:34 (GMT) |
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committer | Takashi Iwai <tiwai@suse.de> | 2011-10-27 14:58:10 (GMT) |
commit | 254f296840b64b034a4c850d45dbde7c040f0819 (patch) | |
tree | 0341a73271adc08dd7fc6e654e46e23682cca081 /sound/pci/hda/patch_conexant.c | |
parent | 527e4d73af16dfc35a770dfdc3874ef63c359ea6 (diff) | |
download | linux-fsl-qoriq-254f296840b64b034a4c850d45dbde7c040f0819.tar.xz |
ALSA: hda - Keep EAPD turned on for old Conexant chips
In the old Conexant chips (5045, 5047, 5051 and 5066), a single EAPD
may handle both headphone and speaker outputs while it's assigned only
to one of them. Turning off dynamically leads to the unexpected silent
output in such a configuration with the auto-mute function.
Since it's difficult to know how the EAPD is handled in the actual h/w
implementation, better to keep EAPD on while running for such codecs.
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/patch_conexant.c')
-rw-r--r-- | sound/pci/hda/patch_conexant.c | 43 |
1 files changed, 22 insertions, 21 deletions
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index 686ec6d..1d69a3e 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -136,6 +136,7 @@ struct conexant_spec { unsigned int thinkpad:1; unsigned int hp_laptop:1; unsigned int asus:1; + unsigned int pin_eapd_ctrls:1; unsigned int adc_switching:1; @@ -3430,12 +3431,14 @@ static void cx_auto_turn_eapd(struct hda_codec *codec, int num_pins, static void do_automute(struct hda_codec *codec, int num_pins, hda_nid_t *pins, bool on) { + struct conexant_spec *spec = codec->spec; int i; for (i = 0; i < num_pins; i++) snd_hda_codec_write(codec, pins[i], 0, AC_VERB_SET_PIN_WIDGET_CONTROL, on ? PIN_OUT : 0); - cx_auto_turn_eapd(codec, num_pins, pins, on); + if (spec->pin_eapd_ctrls) + cx_auto_turn_eapd(codec, num_pins, pins, on); } static int detect_jacks(struct hda_codec *codec, int num_pins, hda_nid_t *pins) @@ -3460,9 +3463,12 @@ static void cx_auto_update_speakers(struct hda_codec *codec) int on = 1; /* turn on HP EAPD when HP jacks are present */ - if (spec->auto_mute) - on = spec->hp_present; - cx_auto_turn_eapd(codec, cfg->hp_outs, cfg->hp_pins, on); + if (spec->pin_eapd_ctrls) { + if (spec->auto_mute) + on = spec->hp_present; + cx_auto_turn_eapd(codec, cfg->hp_outs, cfg->hp_pins, on); + } + /* mute speakers in auto-mode if HP or LO jacks are plugged */ if (spec->auto_mute) on = !(spec->hp_present || @@ -3889,20 +3895,10 @@ static void cx_auto_parse_beep(struct hda_codec *codec) #define cx_auto_parse_beep(codec) #endif -static bool found_in_nid_list(hda_nid_t nid, const hda_nid_t *list, int nums) -{ - int i; - for (i = 0; i < nums; i++) - if (list[i] == nid) - return true; - return false; -} - -/* parse extra-EAPD that aren't assigned to any pins */ +/* parse EAPDs */ static void cx_auto_parse_eapd(struct hda_codec *codec) { struct conexant_spec *spec = codec->spec; - struct auto_pin_cfg *cfg = &spec->autocfg; hda_nid_t nid, end_nid; end_nid = codec->start_nid + codec->num_nodes; @@ -3911,14 +3907,18 @@ static void cx_auto_parse_eapd(struct hda_codec *codec) continue; if (!(snd_hda_query_pin_caps(codec, nid) & AC_PINCAP_EAPD)) continue; - if (found_in_nid_list(nid, cfg->line_out_pins, cfg->line_outs) || - found_in_nid_list(nid, cfg->hp_pins, cfg->hp_outs) || - found_in_nid_list(nid, cfg->speaker_pins, cfg->speaker_outs)) - continue; spec->eapds[spec->num_eapds++] = nid; if (spec->num_eapds >= ARRAY_SIZE(spec->eapds)) break; } + + /* NOTE: below is a wild guess; if we have more than two EAPDs, + * it's a new chip, where EAPDs are supposed to be associated to + * pins, and we can control EAPD per pin. + * OTOH, if only one or two EAPDs are found, it's an old chip, + * thus it might control over all pins. + */ + spec->pin_eapd_ctrls = spec->num_eapds > 2; } static int cx_auto_parse_auto_config(struct hda_codec *codec) @@ -4024,8 +4024,9 @@ static void cx_auto_init_output(struct hda_codec *codec) } } cx_auto_update_speakers(codec); - /* turn on/off extra EAPDs, too */ - cx_auto_turn_eapd(codec, spec->num_eapds, spec->eapds, true); + /* turn on all EAPDs if no individual EAPD control is available */ + if (!spec->pin_eapd_ctrls) + cx_auto_turn_eapd(codec, spec->num_eapds, spec->eapds, true); } static void cx_auto_init_input(struct hda_codec *codec) |