linux-kernel - [PATCH 2/2] ASoC: wm8974: add devicetree support

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Date:	Wed, 16 Dec 2015 13:02:55 +0000
From:	Mans Rullgard <mans@...sr.com>
To:	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org, patches@...nsource.wolfsonmicro.com
Subject: [PATCH 2/2] ASoC: wm8974: add devicetree support

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@...sr.com>
---
 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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