serial: group all the 8250 related code together

The drivers/tty/serial dir is already getting rather busy.
Relocate the 8250 related drivers to their own subdir to
reduce the clutter.

Note that sunsu.c is not included in this move -- it is
8250-like hardware, but it does not use any of the existing
infrastructure -- and does not depend on SERIAL_8250.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 0 insertions, 63 deletions

diff --git a/drivers/tty/serial/8250_fsl.c b/drivers/tty/serial/8250_fsl.c
deleted file mode 100644
index f4d3c47..0000000
--- a/drivers/tty/serial/8250_fsl.c
+++ /dev/null
@@ -1,63 +0,0 @@
-#include <linux/serial_reg.h>
-#include <linux/serial_8250.h>
-
-#include "8250.h"
-
-/*
- * Freescale 16550 UART "driver", Copyright (C) 2011 Paul Gortmaker.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This isn't a full driver; it just provides an alternate IRQ
- * handler to deal with an errata.  Everything else is just
- * using the bog standard 8250 support.
- *
- * We follow code flow of serial8250_default_handle_irq() but add
- * a check for a break and insert a dummy read on the Rx for the
- * immediately following IRQ event.
- *
- * We re-use the already existing "bug handling" lsr_saved_flags
- * field to carry the "what we just did" information from the one
- * IRQ event to the next one.
- */
-
-int fsl8250_handle_irq(struct uart_port *port)
-{
-	unsigned char lsr, orig_lsr;
-	unsigned long flags;
-	unsigned int iir;
-	struct uart_8250_port *up =
-		container_of(port, struct uart_8250_port, port);
-
-	spin_lock_irqsave(&up->port.lock, flags);
-
-	iir = port->serial_in(port, UART_IIR);
-	if (iir & UART_IIR_NO_INT) {
-		spin_unlock_irqrestore(&up->port.lock, flags);
-		return 0;
-	}
-
-	/* This is the WAR; if last event was BRK, then read and return */
-	if (unlikely(up->lsr_saved_flags & UART_LSR_BI)) {
-		up->lsr_saved_flags &= ~UART_LSR_BI;
-		port->serial_in(port, UART_RX);
-		spin_unlock_irqrestore(&up->port.lock, flags);
-		return 1;
-	}
-
-	lsr = orig_lsr = up->port.serial_in(&up->port, UART_LSR);
-
-	if (lsr & (UART_LSR_DR | UART_LSR_BI))
-		lsr = serial8250_rx_chars(up, lsr);
-
-	serial8250_modem_status(up);
-
-	if (lsr & UART_LSR_THRE)
-		serial8250_tx_chars(up);
-
-	up->lsr_saved_flags = orig_lsr;
-	spin_unlock_irqrestore(&up->port.lock, flags);
-	return 1;
-}