[PATCH] Fixes HP Spectre x360 15-eb1xxx speakers

[Takashi Iwai]

On Sat, 25 Sep 2021 21:44:26 +0200,
Davide Baldo wrote:
> 
> 
> First kernel contribution, I only tested this patch myself on a 5.14.7.
> There is probably some way to fix the remaining issues, but I need
> some guidance on how I could test the different pinouts since
> hdajackretask hangs the audio card and I can't test out combinations.
> In the meantime this commit fix the most serius problem: silent
> speakers.
> 
> In laptop 'HP Spectre x360 Convertible 15-eb1xxx/8811' both front and
> rear speakers are silent, this patch fixes that by overriding the pin
> layout and by initializing the amplifier which needs a GPIO pin to be
> set to 1 then 0, similar to the existing HP Spectre x360 14 model.
> 
> This patch also correctly map the mute LED but since there is no
> microphone on/off switch exposed by the alsa subsystem it never turns
> on by itself.

Note that the recent kernel binds the mute and mic-mute LED with the
leds subsystem, which can be controlled via sysfs, /sys/class/leds/*.

> There are still known audio issues in this laptop: headset microphone
> doesn't work, the button to mute/unmute microphone is not yet mapped,
> the LED of the mute/unmute speakers doesn't seems to be exposed via
> GPIO and never turns on.
> 
> Signed-off-by: Davide Baldo <davide at baldo.me>

The changes look almost good, but could you fix the following and
resubmit?

> ---
>  sound/pci/hda/patch_realtek.c | 41 ++++++++++++++++++++++++++++++++++-
>  1 file changed, 40 insertions(+), 1 deletion(-)
> 
> diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
> index 70516527ebce..90f845976793 100644
> --- a/sound/pci/hda/patch_realtek.c
> +++ b/sound/pci/hda/patch_realtek.c
> @@ -6414,6 +6414,38 @@ static void alc_fixup_no_int_mic(struct hda_codec *codec,
>  	}
>  }
>  
> +/* GPIO1 = amplifier on/off
> + * GPIO3 = mic mute LED
> + */
> +static void alc285_fixup_hp_spectre_x360_eb1(struct hda_codec *codec,
> +					  const struct hda_fixup *fix, int action)
> +{
> +	struct alc_spec *spec = codec->spec;
> +	static const struct hda_pintbl pincfgs[] = {
> +		{ 0x14, 0x90170110 },  /* front speakers */
> +		{ }
> +	};
> +
> +	//enable micmute led
> +	alc_fixup_hp_gpio_led(codec, action, 0x00, 0x04);
> +	spec->micmute_led_polarity = 1;

This line should be moved under HDA_FIXUP_ACT_PRE_PROBE.  It needs to
be set only once at the beginning.

> +
> +	switch (action) {
> +	case HDA_FIXUP_ACT_PRE_PROBE:
> +		/* needed for amp of back speakers */
> +		spec->gpio_mask |= 0x01;
> +		spec->gpio_dir |= 0x01;
> +		snd_hda_apply_pincfgs(codec, pincfgs);
> +		break;
> +	case HDA_FIXUP_ACT_INIT:
> +		/* need to toggle GPIO to enable the amp of back speakers */
> +		alc_update_gpio_data(codec, 0x01, true);
> +		msleep(100);
> +		alc_update_gpio_data(codec, 0x01, false);
> +		break;
> +	}
> +}
> +
>  static void alc285_fixup_hp_spectre_x360(struct hda_codec *codec,
>  					  const struct hda_fixup *fix, int action)
>  {
> @@ -6534,6 +6566,7 @@ enum {
>  	ALC269_FIXUP_HP_DOCK_GPIO_MIC1_LED,
>  	ALC280_FIXUP_HP_9480M,
>  	ALC245_FIXUP_HP_X360_AMP,
> +	ALC285_FIXUP_HP_SPECTRE_X360_EB1,
>  	ALC288_FIXUP_DELL_HEADSET_MODE,
>  	ALC288_FIXUP_DELL1_MIC_NO_PRESENCE,
>  	ALC288_FIXUP_DELL_XPS_13,
> @@ -6658,7 +6691,7 @@ enum {
>  	ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP,
>  	ALC623_FIXUP_LENOVO_THINKSTATION_P340,
>  	ALC255_FIXUP_ACER_HEADPHONE_AND_MIC,
> -	ALC236_FIXUP_HP_LIMIT_INT_MIC_BOOST,
> +	ALC236_FIXUP_HP_LIMIT_INT_MIC_BOOST

This is unnecessary change.  It's fine to keep the comma of the last
enum entry in Linux kernel coding style.


>  };
>  
>  static const struct hda_fixup alc269_fixups[] = {
> @@ -8222,6 +8255,10 @@ static const struct hda_fixup alc269_fixups[] = {
>  		.type = HDA_FIXUP_FUNC,
>  		.v.func = alc285_fixup_hp_spectre_x360,
>  	},
> +	[ALC285_FIXUP_HP_SPECTRE_X360_EB1] = {
> +		.type = HDA_FIXUP_FUNC,
> +		.v.func = alc285_fixup_hp_spectre_x360_eb1
> +	},
>  	[ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP] = {
>  		.type = HDA_FIXUP_FUNC,
>  		.v.func = alc285_fixup_ideapad_s740_coef,
> @@ -8415,6 +8452,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
>  	SND_PCI_QUIRK(0x103c, 0x84da, "HP OMEN dc0019-ur", ALC295_FIXUP_HP_OMEN),
>  	SND_PCI_QUIRK(0x103c, 0x84e7, "HP Pavilion 15", ALC269_FIXUP_HP_MUTE_LED_MIC3),
>  	SND_PCI_QUIRK(0x103c, 0x8519, "HP Spectre x360 15-df0xxx", ALC285_FIXUP_HP_SPECTRE_X360),
> +	SND_PCI_QUIRK(0x103c, 0x8811, "HP Spectre x360 15-eb1xxx", ALC285_FIXUP_HP_SPECTRE_X360_EB1),
>  	SND_PCI_QUIRK(0x103c, 0x861f, "HP Elite Dragonfly G1", ALC285_FIXUP_HP_GPIO_AMP_INIT),
>  	SND_PCI_QUIRK(0x103c, 0x869d, "HP", ALC236_FIXUP_HP_MUTE_LED),
>  	SND_PCI_QUIRK(0x103c, 0x86c7, "HP Envy AiO 32", ALC274_FIXUP_HP_ENVY_GPIO),

Please insert the entry in PCI SSID order.


thanks,

Takashi