[MIPS] IP22/28: Add platform devices for HAL2

Create platform devices for hal2 and add option for selecting HAL2 alsa
driver.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

arch/mips/Kconfig

@@ -385,6 +385,8 @@ config SGI_IP28
 	select SGI_HAS_DS1286
 	select SGI_HAS_I8042
 	select SGI_HAS_INDYDOG
+	select SGI_HAS_HAL2
+	select SGI_HAS_HAL2
 	select SGI_HAS_SEEQ
 	select SGI_HAS_WD93
 	select SGI_HAS_ZILOG
@@ -868,6 +870,9 @@ config SGI_HAS_DS1286
 config SGI_HAS_INDYDOG
 	bool
 
+config SGI_HAS_HAL2
+	bool
+
 config SGI_HAS_SEEQ
 	bool
 

arch/mips/sgi-ip22/ip22-platform.c

@@ -175,3 +175,10 @@ static int __init sgiseeq_devinit(void)
 }
 
 device_initcall(sgiseeq_devinit);
+
+static int __init sgi_hal2_devinit(void)
+{
+	return IS_ERR(platform_device_register_simple("sgihal2", 0, NULL, 0));
+}
+
+device_initcall(sgi_hal2_devinit);