linux-kernel - [PATCH] ASoC: soc-io: Add CONFIG_REGMAP_I2C/CONFIG_REGMAP_SPI guards for regmap_init_i2c/regmap_init

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Date:	Wed, 10 Aug 2011 16:24:12 +0800
From:	Axel Lin <axel.lin@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Liam Girdwood <lrg@...com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	alsa-devel@...a-project.org
Subject: [PATCH] ASoC: soc-io: Add CONFIG_REGMAP_I2C/CONFIG_REGMAP_SPI
 guards for regmap_init_i2c/regmap_init_spi

In the case of "make da8xx_omapl_defconfig;make", the SPI support is disabled.
Thus calling regmap_init_spi in soc-io.c has below build error.

ERROR: "regmap_init_spi" [sound/soc/snd-soc-core.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2

This patch fixes the build error by adding CONFIG_REGMAP_I2C/CONFIG_REGMAP_SPI
guards for regmap_init_i2c/regmap_init_spi.

Signed-off-by: Axel Lin <axel.lin@...il.com>
---
 sound/soc/soc-io.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/sound/soc/soc-io.c b/sound/soc/soc-io.c
index e471ed6..be5aac3 100644
--- a/sound/soc/soc-io.c
+++ b/sound/soc/soc-io.c
@@ -122,15 +122,19 @@ int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
 	config.val_bits = data_bits;
 
 	switch (control) {
+#ifdef CONFIG_REGMAP_I2C
 	case SND_SOC_I2C:
 		codec->control_data = regmap_init_i2c(to_i2c_client(codec->dev),
 						      &config);
 		break;
+#endif
 
+#ifdef CONFIG_REGMAP_SPI
 	case SND_SOC_SPI:
 		codec->control_data = regmap_init_spi(to_spi_device(codec->dev),
 						      &config);
 		break;
+#endif
 
 	case SND_SOC_REGMAP:
 		/* Device has made its own regmap arrangements */
-- 
1.7.4.1



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