[PATCH] synclinkmp.c: fix async internal loopback

Fix async internal loopback by not using enable_loopback function which
reprograms clocking and should only be used for hdlc mode.

Signed-off-by: Paul Fulghum <paulkf@microgate.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 4 deletions

diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
index eb31a3b865df..6fb165cf8a61 100644
--- a/drivers/char/synclinkmp.c
+++ b/drivers/char/synclinkmp.c
@@ -4479,11 +4479,13 @@ void async_mode(SLMP_INFO *info)
         /* MD2, Mode Register 2
          *
          * 07..02  Reserved, must be 0
-         * 01..00  CNCT<1..0> Channel connection, 0=normal
+         * 01..00  CNCT<1..0> Channel connection, 00=normal 11=local loopback
          *
          * 0000 0000
          */
         RegValue = 0x00;
+        if (info->params.loopback)
+                RegValue |= (BIT1 + BIT0);
         write_reg(info, MD2, RegValue);
 
         /* RXS, Receive clock source
@@ -4564,9 +4566,6 @@ void async_mode(SLMP_INFO *info)
         write_reg(info, IE2, info->ie2_value);
 
         set_rate( info, info->params.data_rate * 16 );
-
-        if (info->params.loopback)
-                enable_loopback(info,1);
 }
 
 /* Program the SCA for HDLC communications.