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Commit 6e8dcee3 authored by Paul Fulghum's avatar Paul Fulghum Committed by Linus Torvalds
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[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: default avatarPaul Fulghum <paulkf@microgate.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 166692e4

drivers/char/synclinkmp.c

+3 −4
Original line number Original line Diff line number Diff line
@@ -4479,11 +4479,13 @@ void async_mode(SLMP_INFO *info) 
	/* MD2, Mode Register 2

	/* MD2, Mode Register 2

	 *

	 *

	 * 07..02  Reserved, must be 0

	 * 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

	 * 0000 0000

	 */

	 */

	RegValue = 0x00;

	RegValue = 0x00;

	if (info->params.loopback)

		RegValue |= (BIT1 + BIT0);

	write_reg(info, MD2, RegValue);

	write_reg(info, MD2, RegValue);





	/* RXS, Receive clock source

	/* RXS, Receive clock source
@@ -4564,9 +4566,6 @@ void async_mode(SLMP_INFO *info) 
	write_reg(info, IE2, info->ie2_value);

	write_reg(info, IE2, info->ie2_value);





	set_rate( info, info->params.data_rate * 16 );

	set_rate( info, info->params.data_rate * 16 );



	if (info->params.loopback)

		enable_loopback(info,1);

}

}





/* Program the SCA for HDLC communications.

/* Program the SCA for HDLC communications.