From: Matthew Ranostay <mranostay@embeddedalley.com>
To: alsa-devel@alsa-project.org
Cc: Takashi Iwai <tiwai@suse.de>
Subject: [PATCH] hda: EAPD power management
Date: Sun, 13 Apr 2008 13:51:26 -0400 [thread overview]
Message-ID: <4802481E.6010507@embeddedalley.com> (raw)
Power management support for EAPD enabled laptops, when headphones
are sensed it pulls the EAPD GPIO line low to power it down.
Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
---
diff -r 0dd2b6cb1506 pci/hda/patch_sigmatel.c
--- a/pci/hda/patch_sigmatel.c Wed Apr 09 08:16:33 2008 +0200
+++ b/pci/hda/patch_sigmatel.c Fri Apr 11 15:09:39 2008 -0400
@@ -129,6 +129,7 @@ struct sigmatel_spec {
unsigned int hp_detect: 1;
/* gpio lines */
+ unsigned int eapd_mask;
unsigned int gpio_mask;
unsigned int gpio_dir;
unsigned int gpio_data;
@@ -3183,6 +3184,10 @@ static void stac92xx_hp_detect(struct hd
for (i = 0; i < cfg->speaker_outs; i++)
stac92xx_reset_pinctl(codec, cfg->speaker_pins[i],
AC_PINCTL_OUT_EN);
+ if (spec->eapd_mask)
+ stac_gpio_set(codec, spec->gpio_mask,
+ spec->gpio_dir, spec->gpio_data &
+ ~spec->eapd_mask);
} else {
/* enable lineouts, disable hp */
for (i = 0; i < cfg->line_outs; i++)
@@ -3191,6 +3196,10 @@ static void stac92xx_hp_detect(struct hd
for (i = 0; i < cfg->speaker_outs; i++)
stac92xx_set_pinctl(codec, cfg->speaker_pins[i],
AC_PINCTL_OUT_EN);
+ if (spec->eapd_mask)
+ stac_gpio_set(codec, spec->gpio_mask,
+ spec->gpio_dir, spec->gpio_data |
+ spec->eapd_mask);
}
}
@@ -3478,7 +3487,7 @@ again:
spec->num_dmuxes = ARRAY_SIZE(stac92hd73xx_dmux_nids);
spec->dinput_mux = &stac92hd73xx_dmux;
/* GPIO0 High = Enable EAPD */
- spec->gpio_mask = spec->gpio_dir = 0x1;
+ spec->eapd_mask = spec->gpio_mask = spec->gpio_dir = 0x1;
spec->gpio_data = 0x01;
switch (spec->board_config) {
@@ -3584,7 +3593,10 @@ again:
spec->aloopback_shift = 0;
/* GPIO0 High = EAPD */
- spec->gpio_mask = spec->gpio_dir = spec->gpio_data = 0x1;
+ spec->gpio_mask = 0x01;
+ spec->gpio_dir = 0x01;
+ spec->gpio_mask = 0x01;
+ spec->gpio_data = 0x01;
spec->mux_nids = stac92hd71bxx_mux_nids;
spec->adc_nids = stac92hd71bxx_adc_nids;
@@ -3770,7 +3782,7 @@ static int patch_stac927x(struct hda_cod
case STAC_D965_3ST:
case STAC_D965_5ST:
/* GPIO0 High = Enable EAPD */
- spec->gpio_mask = spec->gpio_dir = 0x01;
+ spec->eapd_mask = spec->gpio_mask = spec->gpio_dir = 0x01;
spec->gpio_data = 0x01;
spec->num_dmics = 0;
@@ -3787,7 +3799,7 @@ static int patch_stac927x(struct hda_cod
/* fallthru */
case STAC_DELL_3ST:
/* GPIO2 High = Enable EAPD */
- spec->gpio_mask = spec->gpio_dir = 0x04;
+ spec->eapd_mask = spec->gpio_mask = spec->gpio_dir = 0x04;
spec->gpio_data = 0x04;
spec->dmic_nids = stac927x_dmic_nids;
spec->num_dmics = STAC927X_NUM_DMICS;
@@ -3799,7 +3811,7 @@ static int patch_stac927x(struct hda_cod
break;
default:
/* GPIO0 High = Enable EAPD */
- spec->gpio_mask = spec->gpio_dir = 0x1;
+ spec->eapd_mask = spec->gpio_mask = spec->gpio_dir = 0x1;
spec->gpio_data = 0x01;
spec->num_dmics = 0;
@@ -3903,6 +3915,7 @@ static int patch_stac9205(struct hda_cod
(AC_USRSP_EN | STAC_HP_EVENT));
spec->gpio_dir = 0x0b;
+ spec->eapd_mask = 0x01;
spec->gpio_mask = 0x1b;
spec->gpio_mute = 0x10;
/* GPIO0 High = EAPD, GPIO1 Low = Headphone Mute,
@@ -3912,7 +3925,7 @@ static int patch_stac9205(struct hda_cod
break;
default:
/* GPIO0 High = EAPD */
- spec->gpio_mask = spec->gpio_dir = 0x1;
+ spec->eapd_mask = spec->gpio_mask = spec->gpio_dir = 0x1;
spec->gpio_data = 0x01;
break;
}
next reply other threads:[~2008-04-13 17:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-13 17:51 Matthew Ranostay [this message]
2008-04-14 10:37 ` [PATCH] hda: EAPD power management Takashi Iwai
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