linux-kernel - [PATCH] ASoC: wm8731: Fix a unused function gcc warning

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Message-ID: <1538271918-24033-1-git-send-email-zhongjiang@huawei.com>
Date:   Sun, 30 Sep 2018 09:45:18 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     <broonie@...nel.org>
CC:     <perex@...ex.cz>, <tiwai@...e.com>, <lgirdwood@...il.com>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] ASoC: wm8731: Fix a unused function gcc warning

Fix the following compile warning:

sound/soc/codecs/wm8731.c:575:12: warning: 'wm8731_request_supplies' defined but not used [-Wunused-function]
sound/soc/codecs/wm8731.c:600:12: warning: 'wm8731_hw_init' defined but not used [-Wunused-function]

Signed-off-by: zhong jiang <zhongjiang@...wei.com>
---
 sound/soc/codecs/wm8731.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index 7c8fad8..b5dc6ba2 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -36,12 +36,15 @@
 #include "wm8731.h"
 
 #define WM8731_NUM_SUPPLIES 4
+
+#if defined(CONFIG_I2C) || defined(CONFIG_SPI_MASTER)
 static const char *wm8731_supply_names[WM8731_NUM_SUPPLIES] = {
 	"AVDD",
 	"HPVDD",
 	"DCVDD",
 	"DBVDD",
 };
+#endif
 
 /* codec private data */
 struct wm8731_priv {
@@ -572,6 +575,7 @@ static int wm8731_startup(struct snd_pcm_substream *substream,
 	.symmetric_rates = 1,
 };
 
+#if defined(CONFIG_I2C) || defined(CONFIG_SPI_MASTER)
 static int wm8731_request_supplies(struct device *dev,
 		struct wm8731_priv *wm8731)
 {
@@ -627,6 +631,7 @@ static int wm8731_hw_init(struct device *dev, struct wm8731_priv *wm8731)
 
 	return ret;
 }
+#endif
 
 static const struct snd_soc_component_driver soc_component_dev_wm8731 = {
 	.set_bias_level		= wm8731_set_bias_level,
-- 
1.7.12.4