[ALSA] Add snd-riptide driver for Conexant Riptide chip

Add snd-riptide driver for Conexant Riptide chip by Peter Gruber.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Documentation/sound/alsa/ALSA-Configuration.txt

@@ -1220,6 +1220,20 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 
     The power-management is supported.
 
+  Module snd-riptide
+  ------------------
+
+    Module for Conexant Riptide chip
+
+      joystick_port	- Joystick port # (default: 0x200)
+      mpu_port		- MPU401 port # (default: 0x330)
+      opl3_port		- OPL3 port # (default: 0x388)
+
+    This module supports multiple cards.
+    The driver requires the firmware loader support on kernel.
+    You need to install the firmware file "riptide.hex" to the standard
+    firmware path (e.g. /lib/firmware).
+
   Module snd-rme32
   ----------------
 

sound/pci/Kconfig

@@ -467,6 +467,19 @@ config SND_PCXHR
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-pcxhr.
 
+config SND_RIPTIDE
+	tristate "Conexant Riptide"
+	depends on SND
+	depends on FW_LOADER
+	select SND_OPL3_LIB
+	select SND_MPU401_UART
+	select SND_AC97_CODEC
+	help
+	  Say 'Y' or 'M' to include support for Conexant Riptide chip.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-riptide
+
 config SND_RME32
 	tristate "RME Digi32, 32/8, 32 PRO"
 	depends on SND

sound/pci/Makefile

@@ -62,6 +62,7 @@ obj-$(CONFIG_SND) += \
 	mixart/ \
 	nm256/ \
 	pcxhr/ \
+	riptide/ \
 	rme9652/ \
 	trident/ \
 	ymfpci/ \

sound/pci/riptide/Makefile

+snd-riptide-objs := riptide.o
+
+obj-$(CONFIG_SND_RIPTIDE) += snd-riptide.o