serial/8250: Move UPIO_TSI to powerpc

This iotype is only used by the legacy_serial code in powerpc, so the
code should live there, rather than be compiled in for every 8250
driver.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: linux-serial@vger.kernel.org
Acked-by: David Daney <david.daney@cavium.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 0 insertions, 23 deletions

diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c
index 7f50999eebc2..610b8e63710d 100644
--- a/drivers/tty/serial/8250.c
+++ b/drivers/tty/serial/8250.c
@@ -443,24 +443,6 @@ static void au_serial_out(struct uart_port *p, int offset, int value)
         __raw_writel(value, p->membase + offset);
 }
 
-static unsigned int tsi_serial_in(struct uart_port *p, int offset)
-{
-        unsigned int tmp;
-        offset = map_8250_in_reg(p, offset) << p->regshift;
-        if (offset == UART_IIR) {
-                tmp = readl(p->membase + (UART_IIR & ~3));
-                return (tmp >> 16) & 0xff; /* UART_IIR % 4 == 2 */
-        } else
-                return readb(p->membase + offset);
-}
-
-static void tsi_serial_out(struct uart_port *p, int offset, int value)
-{
-        offset = map_8250_out_reg(p, offset) << p->regshift;
-        if (!((offset == UART_IER) && (value & UART_IER_UUE)))
-                writeb(value, p->membase + offset);
-}
-
 /* Save the LCR value so it can be re-written when a Busy Detect IRQ occurs. */
 static inline void dwapb_save_out_value(struct uart_port *p, int offset,
                                         int value)
@@ -535,11 +517,6 @@ static void set_io_from_upio(struct uart_port *p)
                 p->serial_out = au_serial_out;
                 break;
 
-        case UPIO_TSI:
-                p->serial_in = tsi_serial_in;
-                p->serial_out = tsi_serial_out;
-                break;
-
         case UPIO_DWAPB:
                 p->serial_in = mem_serial_in;
                 p->serial_out = dwapb_serial_out;