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[1/2] ASoC: nau8825: Adjust internal clock during jack detection

Message ID 20221122073855.43024-1-CTLIN0@nuvoton.com
State Accepted
Commit fa0fb0738e9c412d3c4a9fe655948ac9a87c6274
Headers show
Series [1/2] ASoC: nau8825: Adjust internal clock during jack detection | expand

Commit Message

David Lin Nov. 22, 2022, 7:38 a.m. UTC 
This patch is to rasie up internal clock during jack detection.
The fast clock will accelerate charge and discharge effect.
So this mechanism will make jack detection more robust.

Signed-off-by: David Lin <CTLIN0@nuvoton.com>
---
 sound/soc/codecs/nau8825.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/sound/soc/codecs/nau8825.c b/sound/soc/codecs/nau8825.c
index 3eac7c92df88..ba7f5ec28609 100644
--- a/sound/soc/codecs/nau8825.c
+++ b/sound/soc/codecs/nau8825.c
@@ -1686,6 +1686,9 @@  static void nau8825_setup_auto_irq(struct nau8825 *nau8825)
 
 	/* Enable internal VCO needed for interruptions */
 	nau8825_configure_sysclk(nau8825, NAU8825_CLK_INTERNAL, 0);
+	/* Raise up the internal clock for jack detection */
+	regmap_update_bits(regmap, NAU8825_REG_CLK_DIVIDER,
+			   NAU8825_CLK_MCLK_SRC_MASK, 0);
 
 	/* Enable ADC needed for interruptions */
 	regmap_update_bits(regmap, NAU8825_REG_ENA_CTRL,
@@ -1800,6 +1803,10 @@  static int nau8825_jack_insert(struct nau8825 *nau8825)
 		break;
 	}
 
+	/* Update to the default divider of internal clock for power saving */
+	regmap_update_bits(regmap, NAU8825_REG_CLK_DIVIDER,
+			   NAU8825_CLK_MCLK_SRC_MASK, 0xf);
+
 	/* 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.