[PATCH 2/2] ASoC: wm8974: add devicetree support

From: Mans Rullgard
Date: Wed Dec 16 2015 - 08:03:27 EST


This adds devicetree support to the wm8974 codec driver.
With a DT-based kernel, there is no board-specific setting
to select the driver so allow it to be manually chosen.

Signed-off-by: Mans Rullgard <mans@xxxxxxxxx>
---
sound/soc/codecs/Kconfig | 3 ++-
sound/soc/codecs/wm8974.c | 7 +++++++
2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index cfdafc4..e36b14c 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -838,7 +838,8 @@ config SND_SOC_WM8971
tristate

config SND_SOC_WM8974
- tristate
+ tristate "Wolfson Microelectronics WM8974 codec"
+ depends on I2C

config SND_SOC_WM8978
tristate "Wolfson Microelectronics WM8978 codec"
diff --git a/sound/soc/codecs/wm8974.c b/sound/soc/codecs/wm8974.c
index 4c29bd2..c284c7b 100644
--- a/sound/soc/codecs/wm8974.c
+++ b/sound/soc/codecs/wm8974.c
@@ -632,9 +632,16 @@ static const struct i2c_device_id wm8974_i2c_id[] = {
};
MODULE_DEVICE_TABLE(i2c, wm8974_i2c_id);

+static const struct of_device_id wm8974_of_match[] = {
+ { .compatible = "wlf,wm8974", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, wm8974_of_match);
+
static struct i2c_driver wm8974_i2c_driver = {
.driver = {
.name = "wm8974",
+ .of_match_table = wm8974_of_match,
},
.probe = wm8974_i2c_probe,
.remove = wm8974_i2c_remove,
--
2.6.3

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