ASoC: jz4740: Improve build test coverage

Allow the jz4740 audio drivers to be build when CONFIG_COMPILE_TEST is selected.
This should improve the build test coverage. There is one small piece of
platform dependent code in the jz4740-i2s driver. It uses the DMA request type
constants which are defined in a platform specific header. We can solve this by
moving them from the platform specific header to the I2S driver.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/jz4740/Kconfig b/sound/soc/jz4740/Kconfig
index 29f76af..1a354a6 100644
--- a/sound/soc/jz4740/Kconfig
+++ b/sound/soc/jz4740/Kconfig
@@ -1,24 +1,29 @@
 config SND_JZ4740_SOC
 	tristate "SoC Audio for Ingenic JZ4740 SoC"
-	depends on MACH_JZ4740 && SND_SOC
+	depends on MACH_JZ4740 || COMPILE_TEST
 	select SND_SOC_GENERIC_DMAENGINE_PCM
 	help
 	  Say Y or M if you want to add support for codecs attached to
 	  the JZ4740 I2S interface. You will also need to select the audio
 	  interfaces to support below.
 
+if SND_JZ4740_SOC
+
 config SND_JZ4740_SOC_I2S
-	depends on SND_JZ4740_SOC
 	tristate "SoC Audio (I2S protocol) for Ingenic JZ4740 SoC"
+	depends on HAS_IOMEM
 	help
 	  Say Y if you want to use I2S protocol and I2S codec on Ingenic JZ4740
 	  based boards.
 
 config SND_JZ4740_SOC_QI_LB60
 	tristate "SoC Audio support for Qi LB60"
-	depends on SND_JZ4740_SOC && JZ4740_QI_LB60
+	depends on HAS_IOMEM
+	depends on JZ4740_QI_LB60 || COMPILE_TEST
 	select SND_JZ4740_SOC_I2S
     select SND_SOC_JZ4740_CODEC
 	help
 	  Say Y if you want to add support for ASoC audio on the Qi LB60 board
 	  a.k.a Qi Ben NanoNote.
+
+endif