2015-07-14 16:47:31

by Keith Packard

[permalink] [raw]
Subject: [PATCH] ALSA: hda/realtek: Enable headphone amp on HP Folio 9480m

This laptop needs GPIO4 pulled high to enable the headphone
amplifier. I modelled the patch on the existing GPIO4 code which pulls
the line low for the same purpose.

Signed-off-by: Keith Packard <[email protected]>
---
sound/pci/hda/patch_realtek.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 6d01045..9060f1f 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3436,6 +3436,23 @@ static void alc280_fixup_hp_gpio4(struct hda_codec *codec,
}
}

+static void alc280_fixup_hp_gpio4_hp_amp(struct hda_codec *codec,
+ const struct hda_fixup *fix,
+ int action)
+{
+ /* Pull GPIO4 high to enable headphone amp */
+ static const struct hda_verb gpio_init[] = {
+ { 0x01, AC_VERB_SET_GPIO_MASK, 0x10 },
+ { 0x01, AC_VERB_SET_GPIO_DIRECTION, 0x10 },
+ { 0x01, AC_VERB_SET_GPIO_DATA, 0x10 },
+ {}
+ };
+
+ if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+ snd_hda_add_verbs(codec, gpio_init);
+ }
+}
+
static void gpio2_mic_hotkey_event(struct hda_codec *codec,
struct hda_jack_callback *event)
{
@@ -4512,6 +4529,7 @@ enum {
ALC286_FIXUP_HP_GPIO_LED,
ALC280_FIXUP_HP_GPIO2_MIC_HOTKEY,
ALC280_FIXUP_HP_DOCK_PINS,
+ ALC280_FIXUP_HP_GPIO4_HP_AMP,
ALC288_FIXUP_DELL_HEADSET_MODE,
ALC288_FIXUP_DELL1_MIC_NO_PRESENCE,
ALC288_FIXUP_DELL_XPS_13_GPIO6,
@@ -5012,6 +5030,10 @@ static const struct hda_fixup alc269_fixups[] = {
.chained = true,
.chain_id = ALC280_FIXUP_HP_GPIO4
},
+ [ALC280_FIXUP_HP_GPIO4_HP_AMP] = {
+ .type = HDA_FIXUP_FUNC,
+ .v.func = alc280_fixup_hp_gpio4_hp_amp,
+ },
[ALC288_FIXUP_DELL_HEADSET_MODE] = {
.type = HDA_FIXUP_FUNC,
.v.func = alc_fixup_headset_mode_dell_alc288,
@@ -5103,6 +5125,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x103c, 0x22b7, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x22bf, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x22cf, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x22db, "HP", ALC280_FIXUP_HP_GPIO4_HP_AMP),
SND_PCI_QUIRK(0x103c, 0x22dc, "HP", ALC269_FIXUP_HP_GPIO_MIC1_LED),
SND_PCI_QUIRK(0x103c, 0x22fb, "HP", ALC269_FIXUP_HP_GPIO_MIC1_LED),
/* ALC290 */
--
2.1.4


2015-07-14 17:44:40

by Keith Packard

[permalink] [raw]
Subject: [PATCH] ALSA: hda/realtek: Enable HP amp and mute LED on HP Folio 9480m

This laptop needs GPIO4 pulled high to enable the headphone amplifier,
and has a mute LED on GPIO3. I modelled the patch on the existing
GPIO4 code which pulls the line low for the same purpose; this time,
the HP amp line is pulled high.

Signed-off-by: Keith Packard <[email protected]>
---
sound/pci/hda/patch_realtek.c | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 6d01045..de031f7 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3436,6 +3436,29 @@ static void alc280_fixup_hp_gpio4(struct hda_codec *codec,
}
}

+static void alc280_fixup_hp_gpio4_hp_amp(struct hda_codec *codec,
+ const struct hda_fixup *fix,
+ int action)
+{
+ /* Pull GPIO4 high to enable headphone amp */
+ struct alc_spec *spec = codec->spec;
+ static const struct hda_verb gpio_init[] = {
+ { 0x01, AC_VERB_SET_GPIO_MASK, 0x18 },
+ { 0x01, AC_VERB_SET_GPIO_DIRECTION, 0x18 },
+ { 0x01, AC_VERB_SET_GPIO_DATA, 0x10 },
+ {}
+ };
+
+ if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+ spec->gen.vmaster_mute.hook = alc_fixup_gpio_mute_hook;
+ spec->gpio_led = 0x10;
+ spec->mute_led_polarity = 0;
+ spec->gpio_mute_led_mask = 0x08;
+ snd_hda_add_verbs(codec, gpio_init);
+ codec->power_filter = led_power_filter;
+ }
+}
+
static void gpio2_mic_hotkey_event(struct hda_codec *codec,
struct hda_jack_callback *event)
{
@@ -4512,6 +4535,7 @@ enum {
ALC286_FIXUP_HP_GPIO_LED,
ALC280_FIXUP_HP_GPIO2_MIC_HOTKEY,
ALC280_FIXUP_HP_DOCK_PINS,
+ ALC280_FIXUP_HP_GPIO4_HP_AMP,
ALC288_FIXUP_DELL_HEADSET_MODE,
ALC288_FIXUP_DELL1_MIC_NO_PRESENCE,
ALC288_FIXUP_DELL_XPS_13_GPIO6,
@@ -5012,6 +5036,10 @@ static const struct hda_fixup alc269_fixups[] = {
.chained = true,
.chain_id = ALC280_FIXUP_HP_GPIO4
},
+ [ALC280_FIXUP_HP_GPIO4_HP_AMP] = {
+ .type = HDA_FIXUP_FUNC,
+ .v.func = alc280_fixup_hp_gpio4_hp_amp,
+ },
[ALC288_FIXUP_DELL_HEADSET_MODE] = {
.type = HDA_FIXUP_FUNC,
.v.func = alc_fixup_headset_mode_dell_alc288,
@@ -5103,6 +5131,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x103c, 0x22b7, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x22bf, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
SND_PCI_QUIRK(0x103c, 0x22cf, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+ SND_PCI_QUIRK(0x103c, 0x22db, "HP", ALC280_FIXUP_HP_GPIO4_HP_AMP),
SND_PCI_QUIRK(0x103c, 0x22dc, "HP", ALC269_FIXUP_HP_GPIO_MIC1_LED),
SND_PCI_QUIRK(0x103c, 0x22fb, "HP", ALC269_FIXUP_HP_GPIO_MIC1_LED),
/* ALC290 */
--
2.1.4

2015-07-14 19:29:36

by Takashi Iwai

[permalink] [raw]
Subject: Re: [PATCH] ALSA: hda/realtek: Enable HP amp and mute LED on HP Folio 9480m

On Tue, 14 Jul 2015 19:44:31 +0200,
Keith Packard wrote:
>
> This laptop needs GPIO4 pulled high to enable the headphone amplifier,
> and has a mute LED on GPIO3. I modelled the patch on the existing
> GPIO4 code which pulls the line low for the same purpose; this time,
> the HP amp line is pulled high.
>
> Signed-off-by: Keith Packard <[email protected]>
> ---
> sound/pci/hda/patch_realtek.c | 29 +++++++++++++++++++++++++++++
> 1 file changed, 29 insertions(+)
>
> diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
> index 6d01045..de031f7 100644
> --- a/sound/pci/hda/patch_realtek.c
> +++ b/sound/pci/hda/patch_realtek.c
> @@ -3436,6 +3436,29 @@ static void alc280_fixup_hp_gpio4(struct hda_codec *codec,
> }
> }
>
> +static void alc280_fixup_hp_gpio4_hp_amp(struct hda_codec *codec,
> + const struct hda_fixup *fix,
> + int action)
> +{
> + /* Pull GPIO4 high to enable headphone amp */
> + struct alc_spec *spec = codec->spec;
> + static const struct hda_verb gpio_init[] = {
> + { 0x01, AC_VERB_SET_GPIO_MASK, 0x18 },
> + { 0x01, AC_VERB_SET_GPIO_DIRECTION, 0x18 },
> + { 0x01, AC_VERB_SET_GPIO_DATA, 0x10 },
> + {}
> + };
> +
> + if (action == HDA_FIXUP_ACT_PRE_PROBE) {
> + spec->gen.vmaster_mute.hook = alc_fixup_gpio_mute_hook;
> + spec->gpio_led = 0x10;
> + spec->mute_led_polarity = 0;
> + spec->gpio_mute_led_mask = 0x08;
> + snd_hda_add_verbs(codec, gpio_init);
> + codec->power_filter = led_power_filter;
> + }
> +}
> +
> static void gpio2_mic_hotkey_event(struct hda_codec *codec,
> struct hda_jack_callback *event)
> {
> @@ -4512,6 +4535,7 @@ enum {
> ALC286_FIXUP_HP_GPIO_LED,
> ALC280_FIXUP_HP_GPIO2_MIC_HOTKEY,
> ALC280_FIXUP_HP_DOCK_PINS,
> + ALC280_FIXUP_HP_GPIO4_HP_AMP,
> ALC288_FIXUP_DELL_HEADSET_MODE,
> ALC288_FIXUP_DELL1_MIC_NO_PRESENCE,
> ALC288_FIXUP_DELL_XPS_13_GPIO6,
> @@ -5012,6 +5036,10 @@ static const struct hda_fixup alc269_fixups[] = {
> .chained = true,
> .chain_id = ALC280_FIXUP_HP_GPIO4
> },
> + [ALC280_FIXUP_HP_GPIO4_HP_AMP] = {
> + .type = HDA_FIXUP_FUNC,
> + .v.func = alc280_fixup_hp_gpio4_hp_amp,
> + },
> [ALC288_FIXUP_DELL_HEADSET_MODE] = {
> .type = HDA_FIXUP_FUNC,
> .v.func = alc_fixup_headset_mode_dell_alc288,
> @@ -5103,6 +5131,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
> SND_PCI_QUIRK(0x103c, 0x22b7, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
> SND_PCI_QUIRK(0x103c, 0x22bf, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
> SND_PCI_QUIRK(0x103c, 0x22cf, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC1),
> + SND_PCI_QUIRK(0x103c, 0x22db, "HP", ALC280_FIXUP_HP_GPIO4_HP_AMP),
> SND_PCI_QUIRK(0x103c, 0x22dc, "HP", ALC269_FIXUP_HP_GPIO_MIC1_LED),
> SND_PCI_QUIRK(0x103c, 0x22fb, "HP", ALC269_FIXUP_HP_GPIO_MIC1_LED),
> /* ALC290 */

Thanks for the patch. But this looks suboptimal, unfortunately, since
it keeps the amp always on, and more badly, it would block the power
save of the widget root node.

Can just using gpio_mute_led_mask=0x18 and gpio_led=0 (also drop
AC_VERB_SET_GPIO_DATA in gpio_init[]) work instead? If GPIO4 is the
the amp, we can associate it with the master mute control together
with the mute LED. The only concern would be the possible click
noise, but it doesn't happen on most machines.


Takashi

2015-07-15 08:14:22

by Takashi Iwai

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Subject: Re: [PATCH] ALSA: hda/realtek: Enable HP amp and mute LED on HP Folio 9480m

On Wed, 15 Jul 2015 04:37:44 +0200,
Keith Packard wrote:
>
> Takashi Iwai <[email protected]> writes:
>
> > Thanks for the patch. But this looks suboptimal, unfortunately, since
> > it keeps the amp always on, and more badly, it would block the power
> > save of the widget root node.
>
> Thanks very much for your feedback; I wasn't sure precisely how this
> code worked and tried to make a change that was as close as I could
> manage to existing examples.
>
> > Can just using gpio_mute_led_mask=0x18 and gpio_led=0 (also drop
> > AC_VERB_SET_GPIO_DATA in gpio_init[]) work instead? If GPIO4 is the
> > the amp, we can associate it with the master mute control together
> > with the mute LED. The only concern would be the possible click
> > noise, but it doesn't happen on most machines.
>
> It's not quite that simple; the GPIO4 value is inverted from the mute
> LED value (the amp is powered up when GPIO4 is set).

Ah, right, there was already a fixup for GPIO4 low, and yours is for
GPIO4 high.

> What I've done is to make the amp powered only when a headphone is
> plugged in, and then removed the code which was disabling power saving,
> which lets everything (including the amp) get turned back off when the
> device goes idle.
>
> Here's a second version of the patch.

Thanks! The new patch looks good, but I think we don't have to use
the headset code, as your case looks more like a headphone, not a
combo headset that needs the special handling. If so, the change can
be reduced something like below. Could you check whether this is
enough?


Takashi

--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3430,6 +3430,37 @@ static void alc280_fixup_hp_gpio4(struct hda_codec *codec,
}
}

+static void alc280_hp_gpio4_hp_automue(struct hda_codec *codec,
+ struct hda_jack_callback *jack)
+{
+ snd_hda_gen_hp_automute(codec, jack);
+ /* mute_led_polarity is set to 0, so we pass inverted value here */
+ alc_update_gpio_led(codec, 0x10, !spec->gen.hp_jack_present);
+}
+
+/* GPIO3 = mute LED, GPIO4 high = enable headphone amp */
+static void alc280_fixup_hp_gpio4_hp_amp(struct hda_codec *codec,
+ const struct hda_fixup *fix,
+ int action)
+{
+ struct alc_spec *spec = codec->spec;
+ static const struct hda_verb gpio_init[] = {
+ { 0x01, AC_VERB_SET_GPIO_MASK, 0x18 },
+ { 0x01, AC_VERB_SET_GPIO_DIRECTION, 0x18 },
+ {}
+ };
+
+ if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+ spec->gen.vmaster_mute.hook = alc_fixup_gpio_mute_hook;
+ spec->gen.hp_automute_hook = alc280_hp_gpio4_hp_automue;
+ spec->gpio_led = 0;
+ spec->mute_led_polarity = 0;
+ spec->gpio_mute_led_mask = 0x08;
+ snd_hda_add_verbs(codec, gpio_init);
+ codec->power_filter = led_power_filter;
+ }
+}
+

2015-07-16 10:26:46

by Takashi Iwai

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Subject: Re: [PATCH] ALSA: hda/realtek: Enable HP amp and mute LED on HP Folio 9480m

On Wed, 15 Jul 2015 21:14:39 +0200,
Keith Packard wrote:
>
> Takashi Iwai <[email protected]> writes:
>
> > Thanks! The new patch looks good, but I think we don't have to use
> > the headset code, as your case looks more like a headphone, not a
> > combo headset that needs the special handling. If so, the change can
> > be reduced something like below. Could you check whether this is
> > enough?
>
> Yes, that seems a lot simpler and works fine. I did remove the
> led_power_filter setting; that doesn't seem relevant for GPIO-based
> leds, and isn't necessary on my device in any case.
>
> This patch is now otherwise essentially the same as yours, with the
> addition of comments.
>
> Thanks again for your help; it's always interesting to dive into some
> different area of the kernel and see how it works.

Great, I queued the patch now. It'll be included in the next pull
request for 4.2-rc3.


thanks,

Takashi

2015-07-16 14:48:52

by Keith Packard

[permalink] [raw]
Subject: Re: [PATCH] ALSA: hda/realtek: Enable HP amp and mute LED on HP Folio 9480m

Takashi Iwai <[email protected]> writes:

> Great, I queued the patch now. It'll be included in the next pull
> request for 4.2-rc3.

Thanks -- you're an awesome maintainer.

--
-keith


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