add audio

hc

2023-12-11 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4

 kernel/sound/soc/codecs/nau8825.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Nuvoton NAU8825 audio codec driver
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  *
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@@ -5,8 +6,6 @@
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  *  Author: Anatol Pomozov <anatol@chromium.org>
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  * Copyright 2015 Nuvoton Technology Corp.
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  *  Co-author: Meng-Huang Kuo <mhkuo@nuvoton.com>
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- *
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- * Licensed under the GPL-2.
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  */
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 #include <linux/module.h>
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@@ -252,7 +251,7 @@
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  *
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  * Acquires the semaphore without jiffies. Try to acquire the semaphore
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  * atomically. Returns 0 if the semaphore has been acquired successfully
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- * or 1 if it it cannot be acquired.
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+ * or 1 if it cannot be acquired.
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  */
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 static int nau8825_sema_acquire(struct nau8825 *nau8825, long timeout)
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 {
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@@ -351,6 +350,7 @@
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  * Computes log10 of a value; the result is round off to 3 decimal. This func-
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  * tion takes reference to dvb-math. The source code locates as the following.
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  * Linux/drivers/media/dvb-core/dvb_math.c
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+ * @value:  input for log10
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  *
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  * return log10(value) * 1000
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  */
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@@ -424,10 +424,8 @@
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 {
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 	u32 gain, sidetone;
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-	if (unlikely(sig_org == 0) || unlikely(sig_cros == 0)) {
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-		WARN_ON(1);
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+	if (WARN_ON(sig_org == 0 || sig_cros == 0))
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 		return 0;
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-	}
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 	sig_org = nau8825_intlog10_dec3(sig_org);
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 	sig_cros = nau8825_intlog10_dec3(sig_cros);
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@@ -1882,6 +1880,10 @@
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 		NAU8825_JACK_EJECT_DEBOUNCE_MASK,
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 		nau8825->jack_eject_debounce << NAU8825_JACK_EJECT_DEBOUNCE_SFT);
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+	/* Pull up IRQ pin */
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+	regmap_update_bits(regmap, NAU8825_REG_INTERRUPT_MASK,
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+		NAU8825_IRQ_PIN_PULLUP | NAU8825_IRQ_PIN_PULL_EN,
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+		NAU8825_IRQ_PIN_PULLUP | NAU8825_IRQ_PIN_PULL_EN);
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 	/* Mask unneeded IRQs: 1 - disable, 0 - enable */
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 	regmap_update_bits(regmap, NAU8825_REG_INTERRUPT_MASK, 0x7ff, 0x7ff);
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