Blackfin Serial Driver: Fix bug - ircp fails on sir over Blackfin UART

We now use the sir_dev/irtty_sir/uart/bfin_serial drivers framework
to monitor the TX status.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

6 files changed, 17 insertions, 0 deletions

diff --git a/arch/blackfin/mach-bf527/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf527/include/mach/bfin_serial_5xx.h
index a23d0475081..75722d6008b 100644
--- a/arch/blackfin/mach-bf527/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf527/include/mach/bfin_serial_5xx.h
@@ -78,6 +78,9 @@
 #  define CONFIG_UART1_RTS_PIN -1
 # endif
 #endif
+
+#define BFIN_UART_TX_FIFO_SIZE  2
+
 /*
  * The pin configuration is different from schematic
  */
diff --git a/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h
index 20471cd5ebf..815bfe5dd1a 100644
--- a/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h
@@ -69,6 +69,8 @@
 # endif
 #endif
 
+#define BFIN_UART_TX_FIFO_SIZE  2
+
 struct bfin_serial_port {
         struct uart_port        port;
         unsigned int            old_status;
diff --git a/arch/blackfin/mach-bf537/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf537/include/mach/bfin_serial_5xx.h
index 08dfe30300b..b3f87e1d16a 100644
--- a/arch/blackfin/mach-bf537/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf537/include/mach/bfin_serial_5xx.h
@@ -78,6 +78,9 @@
 #  define CONFIG_UART1_RTS_PIN -1
 # endif
 #endif
+
+#define BFIN_UART_TX_FIFO_SIZE  2
+
 /*
  * The pin configuration is different from schematic
  */
diff --git a/arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h
index 76976b17b53..e4cf35e7ab9 100644
--- a/arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf548/include/mach/bfin_serial_5xx.h
@@ -82,6 +82,9 @@
 #  define CONFIG_UART1_RTS_PIN -1
 # endif
 #endif
+
+#define BFIN_UART_TX_FIFO_SIZE  2
+
 /*
  * The pin configuration is different from schematic
  */
diff --git a/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h
index 6cddca4aa18..e0ce0c1843d 100644
--- a/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h
+++ b/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h
@@ -69,6 +69,8 @@
 # endif
 #endif
 
+#define BFIN_UART_TX_FIFO_SIZE  2
+
 struct bfin_serial_port {
         struct uart_port        port;
         unsigned int            old_status;
diff --git a/drivers/serial/bfin_5xx.c b/drivers/serial/bfin_5xx.c
index 5e20f50342a..a5cf0e70b3f 100644
--- a/drivers/serial/bfin_5xx.c
+++ b/drivers/serial/bfin_5xx.c
@@ -761,6 +761,9 @@ bfin_serial_set_termios(struct uart_port *port, struct ktermios *termios,
         val |= UCEN;
         UART_PUT_GCTL(uart, val);
 
+        /* Port speed changed, update the per-port timeout. */
+        uart_update_timeout(port, termios->c_cflag, baud);
+
         spin_unlock_irqrestore(&uart->port.lock, flags);
 }
 
@@ -865,6 +868,7 @@ static void __init bfin_serial_init_ports(void)
 
         for (i = 0; i < nr_active_ports; i++) {
                 bfin_serial_ports[i].port.uartclk   = get_sclk();
+                bfin_serial_ports[i].port.fifosize  = BFIN_UART_TX_FIFO_SIZE;
                 bfin_serial_ports[i].port.ops       = &bfin_serial_pops;
                 bfin_serial_ports[i].port.line      = i;
                 bfin_serial_ports[i].port.iotype    = UPIO_MEM;