ARM: 6141/1: Add audio support part in arch/arm/mach-w90x900

Add audio support part in arch/arm/mach-w90x900

Signed-off-by: Wan ZongShun<mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/arm/mach-w90x900/mfp.c b/arch/arm/mach-w90x900/mfp.c
index a47dc9a708e..fb7fb627b1a 100644
--- a/arch/arm/mach-w90x900/mfp.c
+++ b/arch/arm/mach-w90x900/mfp.c
@@ -36,9 +36,12 @@
 
 #define GPIOG0TO1       (0x03 << 14)
 #define GPIOG2TO3       (0x03 << 16)
+#define GPIOG22TO23     (0x03 << 22)
+
 #define ENSPI           (0x0a << 14)
 #define ENI2C0          (0x01 << 14)
 #define ENI2C1          (0x01 << 16)
+#define ENAC97          (0x02 << 22)
 
 static DEFINE_MUTEX(mfp_mutex);
 
@@ -146,6 +149,9 @@ void mfp_set_groupg(struct device *dev)
         } else if (strcmp(dev_id, "nuc900-i2c1") == 0) {
                 mfpen &= ~(GPIOG2TO3);
                 mfpen |= ENI2C1;/*enable i2c1*/
+        } else if (strcmp(dev_id, "nuc900-audio") == 0) {
+                mfpen &= ~(GPIOG22TO23);
+                mfpen |= ENAC97;/*enable AC97*/
         } else {
                 mfpen &= ~(GPIOG0TO1 | GPIOG2TO3);/*GPIOG[3:0]*/
         }