X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=sound%2Fpci%2Fhda%2Fpatch_sigmatel.c;h=6998cf29b9bc34016e2d2ee1574b6b3d02ce8ef2;hb=dfc6e469b6d1ee5e8c71fa398b7b58fbb600dad8;hp=088a5afbd1b94846462cc290b7ca0eceab5ffaa7;hpb=cbd209f41ea5f39394de5c1fe2dd9aa54a9c5744;p=firefly-linux-kernel-4.4.55.git diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 088a5afbd1b9..6998cf29b9bc 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -368,6 +368,17 @@ static int stac_vrefout_set(struct hda_codec *codec, return 1; } +/* prevent codec AFG to D3 state when vref-out pin is used for mute LED */ +/* this hook is set in stac_setup_gpio() */ +static unsigned int stac_vref_led_power_filter(struct hda_codec *codec, + hda_nid_t nid, + unsigned int power_state) +{ + if (nid == codec->afg && power_state == AC_PWRST_D3) + return AC_PWRST_D1; + return snd_hda_gen_path_power_filter(codec, nid, power_state); +} + /* update mute-LED accoring to the master switch */ static void stac_update_led_status(struct hda_codec *codec, int enabled) { @@ -4260,30 +4271,8 @@ static int stac_suspend(struct hda_codec *codec) stac_shutup(codec); return 0; } - -static void stac_set_power_state(struct hda_codec *codec, hda_nid_t fg, - unsigned int power_state) -{ - unsigned int afg_power_state = power_state; - struct sigmatel_spec *spec = codec->spec; - - if (power_state == AC_PWRST_D3) { - if (spec->vref_mute_led_nid) { - /* with vref-out pin used for mute led control - * codec AFG is prevented from D3 state - */ - afg_power_state = AC_PWRST_D1; - } - /* this delay seems necessary to avoid click noise at power-down */ - msleep(100); - } - snd_hda_codec_read(codec, fg, 0, AC_VERB_SET_POWER_STATE, - afg_power_state); - snd_hda_codec_set_power_to_all(codec, fg, power_state); -} #else #define stac_suspend NULL -#define stac_set_power_state NULL #endif /* CONFIG_PM */ static const struct hda_codec_ops stac_patch_ops = { @@ -4466,8 +4455,7 @@ static void stac_setup_gpio(struct hda_codec *codec) spec->gpio_dir |= spec->gpio_led; spec->gpio_data |= spec->gpio_led; } else { - codec->patch_ops.set_power_state = - stac_set_power_state; + codec->power_filter = stac_vref_led_power_filter; } }