linux-kernel - [RFC PATCH 7/7] ASoC: add new ac97 bus support

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Date:	Sat, 30 Apr 2016 23:15:39 +0200
From:	Robert Jarzmik <robert.jarzmik@...e.fr>
To:	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Daniel Mack <daniel@...que.org>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	alsa-devel@...a-project.org, patches@...nsource.wolfsonmicro.com
Subject: [RFC PATCH 7/7] ASoC: add new ac97 bus support

Add the new ac97 bus support, with ac97 bus automatic probing.

Signed-off-by: Robert Jarzmik <robert.jarzmik@...e.fr>
---
 sound/Kconfig     | 7 +++++++
 sound/Makefile    | 1 +
 sound/soc/Kconfig | 4 ++++
 3 files changed, 12 insertions(+)

diff --git a/sound/Kconfig b/sound/Kconfig
index 5a240e050ae6..83d67eae3580 100644
--- a/sound/Kconfig
+++ b/sound/Kconfig
@@ -134,3 +134,10 @@ config AC97_BUS
 	  sound subsystem and other function drivers completely unrelated to
 	  sound although they're sharing the AC97 bus. Concerned drivers
 	  should "select" this.
+
+config AC97_BUS_NEW
+	tristate
+	help
+	  This is the new AC97 bus type, successor of AC97_BUS. The ported
+	  drivers which benefit from the AC97 automatic probing should "select"
+	  this instead of the AC97_BUS.
diff --git a/sound/Makefile b/sound/Makefile
index 77320709fd26..74728aee25d5 100644
--- a/sound/Makefile
+++ b/sound/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_SND_AOA) += aoa/
 
 # This one must be compilable even if sound is configured out
 obj-$(CONFIG_AC97_BUS) += ac97_bus.o
+obj-$(CONFIG_AC97_BUS_NEW) += ac97/
 
 ifeq ($(CONFIG_SND),y)
   obj-y += last.o
diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig
index 182d92efc7c8..5ad0a0422054 100644
--- a/sound/soc/Kconfig
+++ b/sound/soc/Kconfig
@@ -6,6 +6,7 @@ menuconfig SND_SOC
 	tristate "ALSA for SoC audio support"
 	select SND_PCM
 	select AC97_BUS if SND_SOC_AC97_BUS
+	select AC97_BUS_NEW if SND_SOC_AC97_BUS_NEW
 	select SND_JACK
 	select REGMAP_I2C if I2C
 	select REGMAP_SPI if SPI_MASTER
@@ -25,6 +26,9 @@ if SND_SOC
 config SND_SOC_AC97_BUS
 	bool
 
+config SND_SOC_AC97_BUS_NEW
+	bool
+
 config SND_SOC_GENERIC_DMAENGINE_PCM
 	bool
 	select SND_DMAENGINE_PCM
-- 
2.1.4