Unverified Commit 0bbcedd6 authored by Paul Cercueil's avatar Paul Cercueil Committed by Mark Brown
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ASoC: es8316: Add support for inverted jack detect 



On some devices (Teclast X98+ II tablet, maybe others), the jack
detection has been wired backwards, so when the ES8316 reports
headphones being present it means they are actually not plugged.

Use a quirk around this incorrect behaviour, which can be enabled
through the 'everest,jack-detect-inverted' boolean device property.

Signed-off-by: default avatarPaul Cercueil <paul@crapouillou.net>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 5a79acf9

sound/soc/codecs/es8316.c

+14 −0
Original line number Diff line number Diff line
@@ -43,6 +43,7 @@ struct es8316_priv { 
	unsigned int sysclk;

	unsigned int allowed_rates[NR_SUPPORTED_MCLK_LRCK_RATIOS];

	struct snd_pcm_hw_constraint_list sysclk_constraints;

	bool jd_inverted;

};



/*
@@ -577,6 +578,9 @@ static irqreturn_t es8316_irq(int irq, void *data) 
	if (!es8316->jack)

		goto out;



	if (es8316->jd_inverted)

		flags ^= ES8316_GPIO_FLAG_HP_NOT_INSERTED;



	dev_dbg(comp->dev, "gpio flags %#04x\n", flags);

	if (flags & ES8316_GPIO_FLAG_HP_NOT_INSERTED) {

		/* Jack removed, or spurious IRQ? */
@@ -592,6 +596,8 @@ static irqreturn_t es8316_irq(int irq, void *data) 
		/* Jack inserted, determine type */

		es8316_enable_micbias_for_mic_gnd_short_detect(comp);

		regmap_read(es8316->regmap, ES8316_GPIO_FLAG, &flags);

		if (es8316->jd_inverted)

			flags ^= ES8316_GPIO_FLAG_HP_NOT_INSERTED;

		dev_dbg(comp->dev, "gpio flags %#04x\n", flags);

		if (flags & ES8316_GPIO_FLAG_HP_NOT_INSERTED) {

			/* Jack unplugged underneath us */
@@ -633,6 +639,14 @@ static void es8316_enable_jack_detect(struct snd_soc_component *component, 
{

	struct es8316_priv *es8316 = snd_soc_component_get_drvdata(component);



	/*

	 * Init es8316->jd_inverted here and not in the probe, as we cannot

	 * guarantee that the bytchr-es8316 driver, which might set this

	 * property, will probe before us.

	 */

	es8316->jd_inverted = device_property_read_bool(component->dev,

							"everest,jack-detect-inverted");



	mutex_lock(&es8316->lock);



	es8316->jack = jack;

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