Blackfin serial driver: pending a unique anomaly id, tie the break flood issue to...

pending a unique anomaly id, tie the break flood issue to ANOMALY_05000230
as when that was fixed, the fallout also fixed the break flood

Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index 3f39e18..6f475b6 100644 (file)
--- a/drivers/serial/bfin_5xx.c
+++ b/drivers/serial/bfin_5xx.c
@@ -231,12 +231,10 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart)
 {
        struct tty_struct *tty = uart->port.info->tty;
        unsigned int status, ch, flg;
+       static int in_break = 0;
 #ifdef CONFIG_KGDB_UART
        struct pt_regs *regs = get_irq_regs();
 #endif
-#ifdef BF533_FAMILY
-       static int in_break = 0;
-#endif
 
        status = UART_GET_LSR(uart);
        ch = UART_GET_CHAR(uart);
@@ -262,29 +260,30 @@ static void bfin_serial_rx_chars(struct bfin_serial_port *uart)
                }
        }
 #endif
- 
-#ifdef BF533_FAMILY
-       /* The BF533 family of processors have a nice misbehavior where
-        * they continuously generate characters for a "single" break.
-        * We have to basically ignore this flood until the "next" valid
-        * character comes across.  All other Blackfin families operate
-        * properly though.
-        */
-       if (in_break) {
-               if (ch != 0) {
-                       in_break = 0;
-                       ch = UART_GET_CHAR(uart);
-                       if (bfin_revid() < 5)
+
+       if (ANOMALY_05000230) {
+               /* The BF533 family of processors have a nice misbehavior where
+                * they continuously generate characters for a "single" break.
+                * We have to basically ignore this flood until the "next" valid
+                * character comes across.  All other Blackfin families operate
+                * properly though.
+                * Note: While Anomaly 05000230 does not directly address this,
+                *       the changes that went in for it also fixed this issue.
+                */
+               if (in_break) {
+                       if (ch != 0) {
+                               in_break = 0;
+                               ch = UART_GET_CHAR(uart);
+                               if (bfin_revid() < 5)
+                                       return;
+                       } else
                                return;
-               } else
-                       return;
+               }
        }
-#endif
 
        if (status & BI) {
-#ifdef BF533_FAMILY
-               in_break = 1;
-#endif
+               if (ANOMALY_05000230)
+                       in_break = 1;
                uart->port.icount.brk++;
                if (uart_handle_break(&uart->port))
                        goto ignore_char;