The HP Elitepad 1000 G2 tablet has 2 headset jacks:
1. on the dock which uses the output of the codecs built-in HP-amp + the standard IN2 input which is always used with the headset-jack.
2. on the tablet itself, this uses the line-out of the codec + an external HP-amp, which gets enabled by the ALC5642 codec's GPIO1 pin; and IN1 for the headset-mic.
The codec's GPIO1 is also its only IRQ output pin, so this means that the codec's IRQ cannot be used on this tablet. Instead the jack-detect is connected directly to GPIOs on the main SoC. The dock has a helper chip which also detects if a headset-mic is present or not, so there are 2 GPIOs for the jack-detect status of the dock. The tablet jack uses a single GPIO which indicates if a jack is present or not.
Differentiating between between headphones vs a headset on the tablet jack is done by using the usual mic-bias over-current-detection mechanism.
Add support for this unique setup, this support gets enabled on this tablet through a new BYT_RT5640_JD_HP_ELITEP_1000G2 quirk.
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=213415 Signed-off-by: Hans de Goede hdegoede@redhat.com --- sound/soc/intel/boards/bytcr_rt5640.c | 146 +++++++++++++++++++++++++- 1 file changed, 145 insertions(+), 1 deletion(-)
diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index fecccff76caf..369642c07a5d 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -18,6 +18,8 @@ #include <linux/clk.h> #include <linux/device.h> #include <linux/dmi.h> +#include <linux/gpio/consumer.h> +#include <linux/gpio/machine.h> #include <linux/input.h> #include <linux/slab.h> #include <sound/pcm.h> @@ -76,6 +78,7 @@ enum { #define BYT_RT5640_LINEOUT BIT(25) #define BYT_RT5640_LINEOUT_AS_HP2 BIT(26) #define BYT_RT5640_HSMIC2_ON_IN1 BIT(27) +#define BYT_RT5640_JD_HP_ELITEP_1000G2 BIT(28)
#define BYTCR_INPUT_DEFAULTS \ (BYT_RT5640_IN3_MAP | \ @@ -89,6 +92,8 @@ enum {
struct byt_rt5640_private { struct snd_soc_jack jack; + struct snd_soc_jack jack2; + struct gpio_desc *hsmic_detect; struct clk *mclk; struct device *codec_dev; }; @@ -141,6 +146,8 @@ static void log_quirks(struct device *dev) } if (byt_rt5640_quirk & BYT_RT5640_JD_NOT_INV) dev_info(dev, "quirk JD_NOT_INV enabled\n"); + if (byt_rt5640_quirk & BYT_RT5640_JD_HP_ELITEP_1000G2) + dev_info(dev, "quirk JD_HP_ELITEPAD_1000G2 enabled\n"); if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) dev_info(dev, "quirk MONO_SPEAKER enabled\n"); if (byt_rt5640_quirk & BYT_RT5640_NO_SPEAKERS) @@ -438,6 +445,76 @@ static struct snd_soc_jack_pin rt5640_pins[] = { }, };
+static struct snd_soc_jack_pin rt5640_pins2[] = { + { + /* The 2nd headset jack uses lineout with an external HP-amp */ + .pin = "Line Out", + .mask = SND_JACK_HEADPHONE, + }, + { + /* BYT_RT5640_HSMIC2_ON_IN1 uses byt_rt5640_intmic_in1_map */ + .pin = "Internal Mic", + .mask = SND_JACK_MICROPHONE, + }, +}; + +struct snd_soc_jack_gpio rt5640_jack_gpio = { + .name = "hp-detect", + .report = SND_JACK_HEADSET, + .invert = true, + .debounce_time = 200, +}; + +struct snd_soc_jack_gpio rt5640_jack2_gpio = { + .name = "hp2-detect", + .report = SND_JACK_HEADSET, + .invert = true, + .debounce_time = 200, +}; + +static const struct acpi_gpio_params acpi_gpio0 = { 0, 0, false }; +static const struct acpi_gpio_params acpi_gpio1 = { 1, 0, false }; +static const struct acpi_gpio_params acpi_gpio2 = { 2, 0, false }; + +static const struct acpi_gpio_mapping byt_rt5640_hp_elitepad_1000g2_gpios[] = { + { "hp-detect-gpios", &acpi_gpio0, 1, }, + { "headset-mic-detect-gpios", &acpi_gpio1, 1, }, + { "hp2-detect-gpios", &acpi_gpio2, 1, }, + { }, +}; + +int byt_rt5640_hp_elitepad_1000g2_jack1_check(void *data) +{ + struct byt_rt5640_private *priv = data; + int jack_status, mic_status; + + jack_status = gpiod_get_value_cansleep(rt5640_jack_gpio.desc); + if (jack_status) + return 0; + + mic_status = gpiod_get_value_cansleep(priv->hsmic_detect); + if (mic_status) + return SND_JACK_HEADPHONE; + else + return SND_JACK_HEADSET; +} + +int byt_rt5640_hp_elitepad_1000g2_jack2_check(void *data) +{ + struct snd_soc_component *component = data; + int jack_status, report; + + jack_status = gpiod_get_value_cansleep(rt5640_jack2_gpio.desc); + if (jack_status) + return 0; + + rt5640_enable_micbias1_for_ovcd(component); + report = rt5640_detect_headset(component, rt5640_jack2_gpio.desc); + rt5640_disable_micbias1_for_ovcd(component); + + return report; +} + static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { @@ -649,7 +726,8 @@ static const struct dmi_system_id byt_rt5640_quirk_table[] = { BYT_RT5640_MCLK_EN | BYT_RT5640_LINEOUT | BYT_RT5640_LINEOUT_AS_HP2 | - BYT_RT5640_HSMIC2_ON_IN1), + BYT_RT5640_HSMIC2_ON_IN1 | + BYT_RT5640_JD_HP_ELITEP_1000G2), }, { /* HP Pavilion x2 10-k0XX, 10-n0XX */ .matches = { @@ -1172,9 +1250,60 @@ static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime) snd_soc_component_set_jack(component, &priv->jack, NULL); }
+ if (byt_rt5640_quirk & BYT_RT5640_JD_HP_ELITEP_1000G2) { + ret = snd_soc_card_jack_new(card, "Headset", + SND_JACK_HEADSET, + &priv->jack, rt5640_pins, + ARRAY_SIZE(rt5640_pins)); + if (ret) + return ret; + + ret = snd_soc_card_jack_new(card, "Headset 2", + SND_JACK_HEADSET, + &priv->jack2, rt5640_pins2, + ARRAY_SIZE(rt5640_pins2)); + if (ret) + return ret; + + acpi_dev_add_driver_gpios(ACPI_COMPANION(priv->codec_dev), + byt_rt5640_hp_elitepad_1000g2_gpios); + + rt5640_jack_gpio.data = priv; + rt5640_jack_gpio.gpiod_dev = priv->codec_dev; + rt5640_jack_gpio.jack_status_check = byt_rt5640_hp_elitepad_1000g2_jack1_check; + ret = snd_soc_jack_add_gpios(&priv->jack, 1, &rt5640_jack_gpio); + if (ret) { + acpi_dev_remove_driver_gpios(ACPI_COMPANION(priv->codec_dev)); + return ret; + } + + rt5640_set_ovcd_params(component); + rt5640_jack2_gpio.data = component; + rt5640_jack2_gpio.gpiod_dev = priv->codec_dev; + rt5640_jack2_gpio.jack_status_check = byt_rt5640_hp_elitepad_1000g2_jack2_check; + ret = snd_soc_jack_add_gpios(&priv->jack2, 1, &rt5640_jack2_gpio); + if (ret) { + snd_soc_jack_free_gpios(&priv->jack, 1, &rt5640_jack_gpio); + acpi_dev_remove_driver_gpios(ACPI_COMPANION(priv->codec_dev)); + return ret; + } + } + return 0; }
+static void byt_rt5640_exit(struct snd_soc_pcm_runtime *runtime) +{ + struct snd_soc_card *card = runtime->card; + struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card); + + if (byt_rt5640_quirk & BYT_RT5640_JD_HP_ELITEP_1000G2) { + snd_soc_jack_free_gpios(&priv->jack2, 1, &rt5640_jack2_gpio); + snd_soc_jack_free_gpios(&priv->jack, 1, &rt5640_jack_gpio); + acpi_dev_remove_driver_gpios(ACPI_COMPANION(priv->codec_dev)); + } +} + static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params) { @@ -1287,6 +1416,7 @@ static struct snd_soc_dai_link byt_rt5640_dais[] = { .dpcm_playback = 1, .dpcm_capture = 1, .init = byt_rt5640_init, + .exit = byt_rt5640_exit, .ops = &byt_rt5640_be_ssp2_ops, SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform), }, @@ -1490,6 +1620,20 @@ static int snd_byt_rt5640_mc_probe(struct platform_device *pdev) return -EPROBE_DEFER; priv->codec_dev = get_device(codec_dev);
+ if (byt_rt5640_quirk & BYT_RT5640_JD_HP_ELITEP_1000G2) { + acpi_dev_add_driver_gpios(ACPI_COMPANION(priv->codec_dev), + byt_rt5640_hp_elitepad_1000g2_gpios); + priv->hsmic_detect = devm_fwnode_gpiod_get(&pdev->dev, codec_dev->fwnode, + "headset-mic-detect", GPIOD_IN, + "headset-mic-detect"); + acpi_dev_remove_driver_gpios(ACPI_COMPANION(priv->codec_dev)); + if (IS_ERR(priv->hsmic_detect)) { + ret_val = PTR_ERR(priv->hsmic_detect); + dev_err_probe(&pdev->dev, ret_val, "getting hsmic-detect GPIO\n"); + goto err_device; + } + } + /* Must be called before register_card, also see declaration comment. */ ret_val = byt_rt5640_add_codec_device_props(codec_dev, priv); if (ret_val)