ALSA: ASoC: Check for machine type in GTA01 machine driver

Since there are now multiple OpenMoko platforms it is more important to
check that the machine driver is running on the correct system.  This
was orgininally generated as part of the initial GTA02 machine port.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

1 files changed, 7 insertions, 0 deletions

diff --git a/sound/soc/s3c24xx/neo1973_wm8753.c b/sound/soc/s3c24xx/neo1973_wm8753.c
index 47ddcdedc3a4..73a50e93a9a2 100644
--- a/sound/soc/s3c24xx/neo1973_wm8753.c
+++ b/sound/soc/s3c24xx/neo1973_wm8753.c
@@ -24,6 +24,7 @@
 #include <sound/soc-dapm.h>
 #include <sound/tlv.h>
 
+#include <asm/mach-types.h>
 #include <asm/hardware/scoop.h>
 #include <mach/regs-clock.h>
 #include <mach/regs-gpio.h>
@@ -716,6 +717,12 @@ static int __init neo1973_init(void)
 
         DBG("Entered %s\n", __func__);
 
+        if (!machine_is_neo1973_gta01()) {
+                printk(KERN_INFO
+                        "Only GTA01 hardware supported by ASoC driver\n");
+                return -ENODEV;
+        }
+
         neo1973_snd_device = platform_device_alloc("soc-audio", -1);
         if (!neo1973_snd_device)
                 return -ENOMEM;