[PATCH v4 20/27] ALSA: hda/cs8409: Add Support to disable jack type detection for CS42L42

[Vitaly Rodionov <vitalyr@opensource.cirrus.com>]

From: Stefan Binding <sbinding@opensource.cirrus.com>

Some hardware configurations do not support jack type detection.
Instead, for those configurations, only tip detection is supported.

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com>
---

Changes in v2:
- No changes

Changes in v3:
- No changes

Changes in v4:
- No changes

 sound/pci/hda/patch_cs8409-tables.c |  1 +
 sound/pci/hda/patch_cs8409.c        | 72 ++++++++++++++++-------------
 sound/pci/hda/patch_cs8409.h        |  1 +
 3 files changed, 43 insertions(+), 31 deletions(-)

diff --git a/sound/pci/hda/patch_cs8409-tables.c b/sound/pci/hda/patch_cs8409-tables.c
index 117c70536ff0..be9feb84aaa2 100644
--- a/sound/pci/hda/patch_cs8409-tables.c
+++ b/sound/pci/hda/patch_cs8409-tables.c
@@ -246,6 +246,7 @@ struct sub_codec cs8409_cs42l42_codec = {
 	.mic_jack_in = 0,
 	.paged = 1,
 	.suspended = 1,
+	.no_type_dect = 0,
 };
 
 /******************************************************************************
diff --git a/sound/pci/hda/patch_cs8409.c b/sound/pci/hda/patch_cs8409.c
index 5b3221ddc51b..7ea46c83ac86 100644
--- a/sound/pci/hda/patch_cs8409.c
+++ b/sound/pci/hda/patch_cs8409.c
@@ -559,6 +559,39 @@ static void cs42l42_run_jack_detect(struct sub_codec *cs42l42)
 	usleep_range(10000, 25000);
 }
 
+static int cs42l42_handle_tip_sense(struct sub_codec *cs42l42, unsigned int reg_ts_status)
+{
+	int status_changed = 0;
+
+	/* TIP_SENSE INSERT/REMOVE */
+	switch (reg_ts_status) {
+	case CS42L42_JACK_INSERTED:
+		if (!cs42l42->hp_jack_in) {
+			if (cs42l42->no_type_dect) {
+				status_changed = 1;
+				cs42l42->hp_jack_in = 1;
+				cs42l42->mic_jack_in = 0;
+			} else {
+				cs42l42_run_jack_detect(cs42l42);
+			}
+		}
+		break;
+
+	case CS42L42_JACK_REMOVED:
+		if (cs42l42->hp_jack_in || cs42l42->mic_jack_in) {
+			status_changed = 1;
+			cs42l42->hp_jack_in = 0;
+			cs42l42->mic_jack_in = 0;
+		}
+		break;
+	default:
+		/* jack in transition */
+		break;
+	}
+
+	return status_changed;
+}
+
 static int cs42l42_jack_unsol_event(struct sub_codec *cs42l42)
 {
 	int status_changed = 0;
@@ -583,10 +616,13 @@ static int cs42l42_jack_unsol_event(struct sub_codec *cs42l42)
 		cs8409_i2c_write(cs42l42, 0x131b, 0xFF);
 
 		type = ((reg_hs_status & CS42L42_HSTYPE_MASK) + 1);
-		/* CS42L42 reports optical jack as type 4
-		 * We don't handle optical jack
-		 */
-		if (type != 4) {
+
+		if (cs42l42->no_type_dect) {
+			status_changed = cs42l42_handle_tip_sense(cs42l42, reg_ts_status);
+		} else if (type == 4) {
+			/* Type 4 not supported	*/
+			status_changed = cs42l42_handle_tip_sense(cs42l42, CS42L42_JACK_REMOVED);
+		} else {
 			if (!cs42l42->hp_jack_in) {
 				status_changed = 1;
 				cs42l42->hp_jack_in = 1;
@@ -596,37 +632,11 @@ static int cs42l42_jack_unsol_event(struct sub_codec *cs42l42)
 				status_changed = 1;
 				cs42l42->mic_jack_in = 1;
 			}
-		} else {
-			if (cs42l42->hp_jack_in || cs42l42->mic_jack_in) {
-				status_changed = 1;
-				cs42l42->hp_jack_in = 0;
-				cs42l42->mic_jack_in = 0;
-			}
 		}
-
 		/* Re-Enable Tip Sense Interrupt */
 		cs8409_i2c_write(cs42l42, 0x1320, 0xF3);
-
 	} else {
-		/* TIP_SENSE INSERT/REMOVE */
-		switch (reg_ts_status) {
-		case CS42L42_JACK_INSERTED:
-			cs42l42_run_jack_detect(cs42l42);
-			break;
-
-		case CS42L42_JACK_REMOVED:
-			if (cs42l42->hp_jack_in || cs42l42->mic_jack_in) {
-				status_changed = 1;
-				cs42l42->hp_jack_in = 0;
-				cs42l42->mic_jack_in = 0;
-			}
-			break;
-
-		default:
-			/* jack in transition */
-			status_changed = 0;
-			break;
-		}
+		status_changed = cs42l42_handle_tip_sense(cs42l42, reg_ts_status);
 	}
 
 	return status_changed;
diff --git a/sound/pci/hda/patch_cs8409.h b/sound/pci/hda/patch_cs8409.h
index 817df295d594..a105c3c9023d 100644
--- a/sound/pci/hda/patch_cs8409.h
+++ b/sound/pci/hda/patch_cs8409.h
@@ -285,6 +285,7 @@ struct sub_codec {
 	unsigned int last_page;
 	unsigned int hsbias_hiz;
 	unsigned int full_scale_vol:1;
+	unsigned int no_type_dect:1;
 
 	s8 vol[CS42L42_VOLUMES];
 };
-- 
2.25.1