diff mbox series

[v4,25/27] ALSA: hda/cs8409: Remove unnecessary delays

Message ID 20210811185654.6837-26-vitalyr@opensource.cirrus.com (mailing list archive)
State New, archived
Headers show
Series ALSA: hda/cirrus: Split generic cirrus HDA codecs and CS8490 bridge into separate modules. | expand

Commit Message

Vitaly Rodionov Aug. 11, 2021, 6:56 p.m. UTC 
From: Stefan Binding <sbinding@opensource.cirrus.com>

Since delays when starting jack detection after initialization
have been reduced/removed, it is necessary to add back in an extra
20ms delay after the init sequence to allow the CS42L42 to power up
correctly.

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.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/sound/pci/hda/patch_cs8409.c b/sound/pci/hda/patch_cs8409.c
index 9f6c51a5835a..b528c8353b3c 100644
--- a/sound/pci/hda/patch_cs8409.c
+++ b/sound/pci/hda/patch_cs8409.c
@@ -541,12 +541,10 @@  static void cs42l42_run_jack_detect(struct sub_codec *cs42l42)
 	cs8409_i2c_write(cs42l42, 0x1b74, 0x07);
 	cs8409_i2c_write(cs42l42, 0x131b, 0xFD);
 	cs8409_i2c_write(cs42l42, 0x1120, 0x80);
-	/* Wait ~110ms*/
-	usleep_range(110000, 200000);
+	/* Wait ~100us*/
+	usleep_range(100, 200);
 	cs8409_i2c_write(cs42l42, 0x111f, 0x77);
 	cs8409_i2c_write(cs42l42, 0x1120, 0xc0);
-	/* Wait ~10ms */
-	usleep_range(10000, 25000);
 }
 
 static int cs42l42_handle_tip_sense(struct sub_codec *cs42l42, unsigned int reg_ts_status)
@@ -653,6 +651,7 @@  static void cs42l42_resume(struct sub_codec *cs42l42)
 
 	/* Initialize CS42L42 companion codec */
 	cs8409_i2c_bulk_write(cs42l42, cs42l42->init_seq, cs42l42->init_seq_num);
+	usleep_range(20000, 25000);
 
 	/* Clear interrupts, by reading interrupt status registers */
 	cs8409_i2c_bulk_read(cs42l42, irq_regs, ARRAY_SIZE(irq_regs));
@@ -927,7 +926,6 @@  void cs8409_cs42l42_fixups(struct hda_codec *codec, const struct hda_fixup *fix,
 		 * Run immediately after init.
 		 */
 		cs42l42_run_jack_detect(spec->scodecs[CS8409_CODEC0]);
-		usleep_range(100000, 150000);
 		break;
 	default:
 		break;
@@ -1122,10 +1120,8 @@  void dolphin_fixups(struct hda_codec *codec, const struct hda_fixup *fix, int ac
 		 * been already plugged in.
 		 * Run immediately after init.
 		 */
-		for (i = 0; i < spec->num_scodecs; i++) {
+		for (i = 0; i < spec->num_scodecs; i++)
 			cs42l42_run_jack_detect(spec->scodecs[i]);
-			usleep_range(100000, 150000);
-		}
 
 		break;
 	default: