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Commit 7b69a4c3 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge master.kernel.org:/home/rmk/linux-2.6-serial 

* master.kernel.org:/home/rmk/linux-2.6-serial:
  [SERIAL] 8250: sysrq deadlock fix
  [SERIAL] 8250: add tsi108 serial support
  [SERIAL] IP22: fix serial console hangs
  [SERIAL] dz: Fix compilation error
parents a23f4636 68aa2c0d

drivers/serial/8250.c

+21 −4
Original line number Diff line number Diff line
@@ -299,6 +299,7 @@ static inline int map_8250_out_reg(struct uart_8250_port *up, int offset) 


static unsigned int serial_in(struct uart_8250_port *up, int offset)

{

	unsigned int tmp;

	offset = map_8250_in_reg(up, offset) << up->port.regshift;



	switch (up->port.iotype) {
@@ -317,6 +318,13 @@ static unsigned int serial_in(struct uart_8250_port *up, int offset) 
		return __raw_readl(up->port.membase + offset);

#endif



	case UPIO_TSI:

		if (offset == UART_IIR) {

			tmp = readl((u32 *)(up->port.membase + UART_RX));

			return (cpu_to_le32(tmp) >> 8) & 0xff;

		} else

			return readb(up->port.membase + offset);



	default:

		return inb(up->port.iobase + offset);

	}
@@ -346,6 +354,10 @@ serial_out(struct uart_8250_port *up, int offset, int value) 
		__raw_writel(value, up->port.membase + offset);

		break;

#endif

	case UPIO_TSI:

		if (!((offset == UART_IER) && (value & UART_IER_UUE)))

			writeb(value, up->port.membase + offset);

		break;



	default:

		outb(value, up->port.iobase + offset);
@@ -2240,10 +2252,14 @@ serial8250_console_write(struct console *co, const char *s, unsigned int count) 


	touch_nmi_watchdog();



	if (oops_in_progress) {

		locked = spin_trylock_irqsave(&up->port.lock, flags);

	local_irq_save(flags);

	if (up->port.sysrq) {

		/* serial8250_handle_port() already took the lock */

		locked = 0;

	} else if (oops_in_progress) {

		locked = spin_trylock(&up->port.lock);

	} else

		spin_lock_irqsave(&up->port.lock, flags);

		spin_lock(&up->port.lock);



	/*

	 *	First save the IER then disable the interrupts
@@ -2265,7 +2281,8 @@ serial8250_console_write(struct console *co, const char *s, unsigned int count) 
	serial_out(up, UART_IER, ier);



	if (locked)

		spin_unlock_irqrestore(&up->port.lock, flags);

		spin_unlock(&up->port.lock);

	local_irq_restore(flags);

}



static int serial8250_console_setup(struct console *co, char *options)

drivers/serial/dz.c

+1 −1
Original line number Diff line number Diff line
@@ -673,7 +673,7 @@ static void dz_reset(struct dz_port *dport) 
}



#ifdef CONFIG_SERIAL_DZ_CONSOLE

static void dz_console_putchar(struct uart_port *port, int ch)

static void dz_console_putchar(struct uart_port *uport, int ch)

{

	struct dz_port *dport = (struct dz_port *)uport;

	unsigned long flags;

drivers/serial/ip22zilog.c

+1 −2
Original line number Diff line number Diff line
@@ -1143,9 +1143,8 @@ static void __init ip22zilog_prepare(void) 
		up[(chip * 2) + 1].port.fifosize = 1;

		up[(chip * 2) + 1].port.ops = &ip22zilog_pops;

		up[(chip * 2) + 1].port.type = PORT_IP22ZILOG;

		up[(chip * 2) + 1].port.flags |= IP22ZILOG_FLAG_IS_CHANNEL_A;

		up[(chip * 2) + 1].port.line = (chip * 2) + 1;

		up[(chip * 2) + 1].flags = 0;

		up[(chip * 2) + 1].flags |= IP22ZILOG_FLAG_IS_CHANNEL_A;

	}

}

drivers/serial/serial_core.c

+1 −0
Original line number Diff line number Diff line
@@ -2036,6 +2036,7 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port) 
	case UPIO_MEM:

	case UPIO_MEM32:

	case UPIO_AU:

	case UPIO_TSI:

		snprintf(address, sizeof(address),

			 "MMIO 0x%lx", port->mapbase);

		break;

include/linux/serial_core.h

+1 −0
Original line number Diff line number Diff line
@@ -227,6 +227,7 @@ struct uart_port { 
#define UPIO_MEM		(2)

#define UPIO_MEM32		(3)

#define UPIO_AU			(4)			/* Au1x00 type IO */

#define UPIO_TSI		(5)			/* Tsi108/109 type IO */



	unsigned int		read_status_mask;	/* driver specific */

	unsigned int		ignore_status_mask;	/* driver specific */