ASoC: Tegra: Move utilities to separate module

The utilities will be required by every machine driver. Including the
utility object directly into every machine driver causes a build failure
if the modules are actually built into the kernel, since each will define
the symbols exported by the utility file. Solve this by moving the
utility object into a separate module.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/tegra/Makefile

@@ -2,13 +2,14 @@
 snd-soc-tegra-das-objs := tegra_das.o
 snd-soc-tegra-pcm-objs := tegra_pcm.o
 snd-soc-tegra-i2s-objs := tegra_i2s.o
+snd-soc-tegra-utils-objs += tegra_asoc_utils.o
 
+obj-$(CONFIG_SND_TEGRA_SOC) += snd-soc-tegra-utils.o
 obj-$(CONFIG_SND_TEGRA_SOC) += snd-soc-tegra-das.o
 obj-$(CONFIG_SND_TEGRA_SOC) += snd-soc-tegra-pcm.o
 obj-$(CONFIG_SND_TEGRA_SOC_I2S) += snd-soc-tegra-i2s.o
 
 # Tegra machine Support
 snd-soc-tegra-harmony-objs := harmony.o
-snd-soc-tegra-harmony-objs += tegra_asoc_utils.o
 
 obj-$(CONFIG_SND_TEGRA_SOC_HARMONY) += snd-soc-tegra-harmony.o

sound/soc/tegra/tegra_asoc_utils.c

@@ -101,6 +101,7 @@ int tegra_asoc_utils_set_rate(struct tegra_asoc_utils_data *data, int srate,
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(tegra_asoc_utils_set_rate);
 
 int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data,
 			  struct device *dev)
@@ -139,6 +140,7 @@ err_put_pll_a:
 err:
 	return ret;
 }
+EXPORT_SYMBOL_GPL(tegra_asoc_utils_init);
 
 void tegra_asoc_utils_fini(struct tegra_asoc_utils_data *data)
 {
@@ -146,4 +148,8 @@ void tegra_asoc_utils_fini(struct tegra_asoc_utils_data *data)
 	clk_put(data->clk_pll_a_out0);
 	clk_put(data->clk_pll_a);
 }
+EXPORT_SYMBOL_GPL(tegra_asoc_utils_fini);
 
+MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
+MODULE_DESCRIPTION("Tegra ASoC utility code");
+MODULE_LICENSE("GPL");