[PATCH 3/4] ASoC: rt5645: add inv_hp_det flag

[Chris Chiu]

The ECS EF20EA laptop use gpio for jack detection instead of rt5645
rt5645 JD. However, the GPIO polarity is inverse for hp-detect based
on the _DSD property of the RTK2 device.

Name (_DSD, Package () {
    ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
    Package () {
        Package () {"hp-detect-gpio", Package() {^RTK2, 0, 0, 1 }},
    }
})

This flag will invert the hp-detect gpio polarity.

Signed-off-by: Chris Chiu <chiu@xxxxxxxxxxxxx>
---
 include/sound/rt5645.h    | 2 ++
 sound/soc/codecs/rt5645.c | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/include/sound/rt5645.h b/include/sound/rt5645.h
index 39a77c7cea36..710c95be5509 100644
--- a/include/sound/rt5645.h
+++ b/include/sound/rt5645.h
@@ -22,6 +22,8 @@ struct rt5645_platform_data {
 	bool level_trigger_irq;
 	/* Invert JD1_1 status polarity */
 	bool inv_jd1_1;
+	/* Invert HP detect status polarity */
+	bool inv_hp_pol;
 
 	/* Value to asign to snd_soc_card.long_name */
 	const char *long_name;
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 24a6acb3c12f..530145cf8c5b 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -34,6 +34,7 @@
 #define QUIRK_INV_JD1_1(q)	((q) & 1)
 #define QUIRK_LEVEL_IRQ(q)	(((q) >> 1) & 1)
 #define QUIRK_IN2_DIFF(q)	(((q) >> 2) & 1)
+#define QUIRK_INV_HP_POL(q)	(((q) >> 3) & 1)
 #define QUIRK_JD_MODE(q)	(((q) >> 4) & 7)
 #define QUIRK_DMIC1_DATA_PIN(q)	(((q) >> 8) & 3)
 #define QUIRK_DMIC2_DATA_PIN(q)	(((q) >> 12) & 3)
@@ -3263,6 +3264,8 @@ static void rt5645_jack_detect_work(struct work_struct *work)
 	case 0: /* Not using rt5645 JD */
 		if (rt5645->gpiod_hp_det) {
 			gpio_state = gpiod_get_value(rt5645->gpiod_hp_det);
+			if (rt5645->pdata.inv_hp_pol)
+				gpio_state ^= 1;
 			dev_dbg(rt5645->component->dev, "gpio_state = %d\n",
 				gpio_state);
 			report = rt5645_jack_detect(rt5645->component, gpio_state);
@@ -3871,6 +3874,7 @@ static int rt5645_i2c_probe(struct i2c_client *i2c,
 		rt5645->pdata.in2_diff = QUIRK_IN2_DIFF(quirk);
 		rt5645->pdata.level_trigger_irq = QUIRK_LEVEL_IRQ(quirk);
 		rt5645->pdata.inv_jd1_1 = QUIRK_INV_JD1_1(quirk);
+		rt5645->pdata.inv_hp_pol = QUIRK_INV_HP_POL(quirk);
 		rt5645->pdata.jd_mode = QUIRK_JD_MODE(quirk);
 		rt5645->pdata.dmic1_data_pin = QUIRK_DMIC1_DATA_PIN(quirk);
 		rt5645->pdata.dmic2_data_pin = QUIRK_DMIC2_DATA_PIN(quirk);
-- 
2.20.1