From 8315d8adc048bd7f8eb7ee5722ecef4e6e7d52ff Mon Sep 17 00:00:00 2001
From: David Lin <CTLIN0@nuvoton.com>
Date: Wed, 31 May 2023 15:53:35 +0800
Subject: [PATCH] ASoC: nau8825: Add the management of headset detection for power saving
Git-commit: 8315d8adc048bd7f8eb7ee5722ecef4e6e7d52ff
Patch-mainline: v6.5-rc1
References: jsc#PED-6045 jsc#PED-6036 jsc#PED-6104 jsc#PED-6114 jsc#PED-6067 jsc#PED-6123
The patch is to manage HSD feature for power saving. The detail is to
disable HSD feature after the headset detection is done. When the jack
is inserted, the HSD feature will be enabled again.
Signed-off-by: David Lin <CTLIN0@nuvoton.com>
Link: https://lore.kernel.org/r/20230531075334.168637-1-CTLIN0@nuvoton.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
sound/soc/codecs/nau8825.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c
index cc3e18207c42..f6dd84b32e0b 100644
--- a/sound/soc/codecs/nau8825.c
+++ b/sound/soc/codecs/nau8825.c
@@ -1704,6 +1704,10 @@ static void nau8825_setup_auto_irq(struct nau8825 *nau8825)
{
struct regmap *regmap = nau8825->regmap;
+ /* Enable HSD function */
+ regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL,
+ NAU8825_HSD_AUTO_MODE, NAU8825_HSD_AUTO_MODE);
+
/* Enable headset jack type detection complete interruption and
* jack ejection interruption.
*/
@@ -1955,6 +1959,9 @@ static int nau8825_jack_insert(struct nau8825 *nau8825)
regmap_update_bits(regmap, NAU8825_REG_CLK_DIVIDER,
NAU8825_CLK_MCLK_SRC_MASK, 0xf);
+ /* Disable HSD function */
+ regmap_update_bits(regmap, NAU8825_REG_HSD_CTRL, NAU8825_HSD_AUTO_MODE, 0);
+
/* Leaving HPOL/R grounded after jack insert by default. They will be
* ungrounded as part of the widget power up sequence at the beginning
* of playback to reduce pop.
--
2.35.3