ASoC: Add WM8974 CODEC driver

The WM8974 is a low power, high quality mono CODEC designed for portable
applications such as digital still cameras or digital voice recorders.

This driver was originally written by Graeme Gregory and Liam Girdwood
and has since been maintained by myself with some updates contributed by
Brett Saunders and Javier Martin.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 7f78b65fc4e3..91daffd30e8b 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -38,6 +38,7 @@ config SND_SOC_ALL_CODECS
         select SND_SOC_WM8940 if I2C
         select SND_SOC_WM8960 if I2C
         select SND_SOC_WM8971 if I2C
+        select SND_SOC_WM8974 if I2C
         select SND_SOC_WM8988 if SND_SOC_I2C_AND_SPI
         select SND_SOC_WM8990 if I2C
         select SND_SOC_WM9081 if I2C
@@ -151,6 +152,9 @@ config SND_SOC_WM8960
 config SND_SOC_WM8971
         tristate
 
+config SND_SOC_WM8974
+        tristate
+
 config SND_SOC_WM8988
         tristate