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authorTakashi Iwai <tiwai@suse.de>2011-12-04 13:44:06 +0100
committerTakashi Iwai <tiwai@suse.de>2011-12-06 13:18:46 +0100
commitf1a73746c6664442082e3d53e1804f46e1910436 (patch)
tree08d21f39323f9b47ef2652a5d7fa2e4934a574f4 /sound
parent77088cc97315e9bc713e335fb082ad26d065a4cf (diff)
ALSA: hda - Fix GPIO LED setup for IDT 92HD75 codecs
Some HP laptops with IDT 92HD75 codecs may use a GPIO > 4 for the mute LED, but currently the driver doesn't check this properly, and confuses the mute LED behavior. This ended up with the silent output on some HP laptops due to having another GPIO used as external amp control. This patch fixes the problem by checking the max GPIO count and comparing with the given value from DMI entry instead of magic fixed value 4 and 8, and adding a new field to indicate the VREF mute-LED behavior. Reported-and-tested-by: Vitaliy Kulikov <Vitaliy.Kulikov@idt.com> Cc: <stable@kernel.org> [v3.1] Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/patch_sigmatel.c45
1 files changed, 24 insertions, 21 deletions
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index f3658658548..e035cf6de27 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -215,6 +215,7 @@ struct sigmatel_spec {
unsigned int gpio_mute;
unsigned int gpio_led;
unsigned int gpio_led_polarity;
+ unsigned int vref_mute_led_nid; /* pin NID for mute-LED vref control */
unsigned int vref_led;
/* stream */
@@ -4318,12 +4319,10 @@ static void stac_store_hints(struct hda_codec *codec)
spec->eapd_switch = val;
get_int_hint(codec, "gpio_led_polarity", &spec->gpio_led_polarity);
if (get_int_hint(codec, "gpio_led", &spec->gpio_led)) {
- if (spec->gpio_led <= 8) {
- spec->gpio_mask |= spec->gpio_led;
- spec->gpio_dir |= spec->gpio_led;
- if (spec->gpio_led_polarity)
- spec->gpio_data |= spec->gpio_led;
- }
+ spec->gpio_mask |= spec->gpio_led;
+ spec->gpio_dir |= spec->gpio_led;
+ if (spec->gpio_led_polarity)
+ spec->gpio_data |= spec->gpio_led;
}
}
@@ -4913,8 +4912,14 @@ static int find_mute_led_gpio(struct hda_codec *codec, int default_polarity)
if (sscanf(dev->name, "HP_Mute_LED_%d_%x",
&spec->gpio_led_polarity,
&spec->gpio_led) == 2) {
- if (spec->gpio_led < 4)
+ unsigned int max_gpio;
+ max_gpio = snd_hda_param_read(codec, codec->afg,
+ AC_PAR_GPIO_CAP);
+ max_gpio &= AC_GPIO_IO_COUNT;
+ if (spec->gpio_led < max_gpio)
spec->gpio_led = 1 << spec->gpio_led;
+ else
+ spec->vref_mute_led_nid = spec->gpio_led;
return 1;
}
if (sscanf(dev->name, "HP_Mute_LED_%d",
@@ -5043,15 +5048,12 @@ static int stac92xx_pre_resume(struct hda_codec *codec)
struct sigmatel_spec *spec = codec->spec;
/* sync mute LED */
- if (spec->gpio_led) {
- if (spec->gpio_led <= 8) {
- stac_gpio_set(codec, spec->gpio_mask,
- spec->gpio_dir, spec->gpio_data);
- } else {
- stac_vrefout_set(codec,
- spec->gpio_led, spec->vref_led);
- }
- }
+ if (spec->vref_mute_led_nid)
+ stac_vrefout_set(codec, spec->vref_mute_led_nid,
+ spec->vref_led);
+ else if (spec->gpio_led)
+ stac_gpio_set(codec, spec->gpio_mask,
+ spec->gpio_dir, spec->gpio_data);
return 0;
}
@@ -5076,7 +5078,7 @@ static void stac92xx_set_power_state(struct hda_codec *codec, hda_nid_t fg,
struct sigmatel_spec *spec = codec->spec;
if (power_state == AC_PWRST_D3) {
- if (spec->gpio_led > 8) {
+ if (spec->vref_mute_led_nid) {
/* with vref-out pin used for mute led control
* codec AFG is prevented from D3 state
*/
@@ -5129,7 +5131,7 @@ static int stac92xx_update_led_status(struct hda_codec *codec)
}
}
/*polarity defines *not* muted state level*/
- if (spec->gpio_led <= 8) {
+ if (!spec->vref_mute_led_nid) {
if (muted)
spec->gpio_data &= ~spec->gpio_led; /* orange */
else
@@ -5147,7 +5149,8 @@ static int stac92xx_update_led_status(struct hda_codec *codec)
muted_lvl = spec->gpio_led_polarity ?
AC_PINCTL_VREF_GRD : AC_PINCTL_VREF_HIZ;
spec->vref_led = muted ? muted_lvl : notmtd_lvl;
- stac_vrefout_set(codec, spec->gpio_led, spec->vref_led);
+ stac_vrefout_set(codec, spec->vref_mute_led_nid,
+ spec->vref_led);
}
return 0;
}
@@ -5661,7 +5664,7 @@ again:
#ifdef CONFIG_SND_HDA_POWER_SAVE
if (spec->gpio_led) {
- if (spec->gpio_led <= 8) {
+ if (!spec->vref_mute_led_nid) {
spec->gpio_mask |= spec->gpio_led;
spec->gpio_dir |= spec->gpio_led;
spec->gpio_data |= spec->gpio_led;
@@ -5976,7 +5979,7 @@ again:
#ifdef CONFIG_SND_HDA_POWER_SAVE
if (spec->gpio_led) {
- if (spec->gpio_led <= 8) {
+ if (!spec->vref_mute_led_nid) {
spec->gpio_mask |= spec->gpio_led;
spec->gpio_dir |= spec->gpio_led;
spec->gpio_data |= spec->gpio_led;