ASoC: nau8821: Generalize helper to clear IRQ status

Instead of adding yet another utility function for dealing with the
interrupt clearing register, generalize nau8821_int_status_clear_all()
by renaming it to nau8821_irq_status_clear(), whilst introducing a
second parameter to allow restricting the operation scope to a single
interrupt instead of the whole range of active IRQs.

While at it, also fix a spelling typo in the comment block.

Note this is mainly a prerequisite for subsequent patches aiming to
address some deficiencies in the implementation of the interrupt
handler.  Thus the presence of the Fixes tag below is intentional, to
facilitate backporting.

Fixes: aab1ad1 ("ASoC: nau8821: new driver")
Signed-off-by: Cristian Ciocaltea <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>

Author: cristicc

sound/soc/codecs/nau8821.c

@@ -1021,12 +1021,17 @@ static bool nau8821_is_jack_inserted(struct regmap *regmap)
 	return active_high == is_high;
 }
 
-static void nau8821_int_status_clear_all(struct regmap *regmap)
+static void nau8821_irq_status_clear(struct regmap *regmap, int active_irq)
 {
-	int active_irq, clear_irq, i;
+	int clear_irq, i;
 
-	/* Reset the intrruption status from rightmost bit if the corres-
-	 * ponding irq event occurs.
+	if (active_irq) {
+		regmap_write(regmap, NAU8821_R11_INT_CLR_KEY_STATUS, active_irq);
+		return;
+	}
+
+	/* Reset the interruption status from rightmost bit if the
+	 * corresponding irq event occurs.
 	 */
 	regmap_read(regmap, NAU8821_R10_IRQ_STATUS, &active_irq);
 	for (i = 0; i < NAU8821_REG_DATA_LEN; i++) {
@@ -1053,7 +1058,7 @@ static void nau8821_eject_jack(struct nau8821 *nau8821)
 	snd_soc_dapm_sync(dapm);
 
 	/* Clear all interruption status */
-	nau8821_int_status_clear_all(regmap);
+	nau8821_irq_status_clear(regmap, 0);
 
 	/* Enable the insertion interruption, disable the ejection inter-
 	 * ruption, and then bypass de-bounce circuit.
@@ -1522,7 +1527,7 @@ static int nau8821_resume_setup(struct nau8821 *nau8821)
 	nau8821_configure_sysclk(nau8821, NAU8821_CLK_DIS, 0);
 	if (nau8821->irq) {
 		/* Clear all interruption status */
-		nau8821_int_status_clear_all(regmap);
+		nau8821_irq_status_clear(regmap, 0);
 
 		/* Enable both insertion and ejection interruptions, and then
 		 * bypass de-bounce circuit.