Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-12 07:01:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

serial: sh-sci: Fix fifo stall on SH7760/SH7780/SH7785 SCIF.

Browse Source 
There was an off-by-1 in the SCRFDR calculation that caused writes over
128-bytes to hang in the FIFO. Fix it up.

Signed-off-by: Yutaro Ebihara <ebiharaml@si-linux.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Yutaro Ebihara 2008-03-11 13:58:50 +09:00 committed by Paul Mundt
parent 2f44bbb495
commit cae167d3d7
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/serial/sh-sci.c
View File

@ -414,12 +414,12 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
defined(CONFIG_CPU_SUBTYPE_SH7785)
static inline int scif_txroom(struct uart_port *port)
{
return SCIF_TXROOM_MAX - (sci_in(port, SCTFDR) & 0x7f);
return SCIF_TXROOM_MAX - (sci_in(port, SCTFDR) & 0xff);
}
static inline int scif_rxroom(struct uart_port *port)
{
return sci_in(port, SCRFDR) & 0x7f;
return sci_in(port, SCRFDR) & 0xff;
}
#else
static inline int scif_txroom(struct uart_port *port)