Merge tag 'tty-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial driver update from Greg Kroah-Hartman:
 "Here's the big tty/serial driver merge request for 3.10-rc1

  Once again, Jiri has a number of TTY driver fixes and cleanups, and
  Peter Hurley came through with a bunch of ldisc fixes that resolve a
  number of reported issues.  There are some other serial driver
  cleanups as well.

  All of these have been in the linux-next tree for a while"

* tag 'tty-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (117 commits)
  tty/serial/sirf: fix MODULE_DEVICE_TABLE
  serial: mxs: drop superfluous {get|put}_device
  serial: mxs: fix buffer overflow
  ARM: PL011: add support for extended FIFO-size of PL011-r1p5
  serial_core.c: add put_device() after device_find_child()
  tty: Fix unsafe bit ops in tty_throttle_safe/unthrottle_safe
  serial: sccnxp: Replace pdata.init/exit with regulator API
  serial: sccnxp: Do not override device name
  TTY: pty, fix compilation warning
  TTY: rocket, fix compilation warning
  TTY: ircomm: fix DTR being raised on hang up
  TTY: synclinkmp: fix DTR being raised on hang up
  TTY: synclink_gt: fix DTR being raised on hang up
  TTY: synclink: fix DTR being raised on hang up
  serial: 8250_dw: Fix the stub for dw8250_probe_acpi()
  serial: 8250_dw: Convert to devm_ioremap()
  serial: 8250_dw: Set port capabilities based on CPR register
  serial: 8250_dw: Let ACPI code extract the DMA client info
  serial: 8250_dw: Support clk framework also with ACPI
  serial: 8250_dw: Enable runtime PM
  ...

1 files changed, 79 insertions, 24 deletions

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 7a6c989924b3..21a7e179edf3 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1493,29 +1493,6 @@ static int pch_uart_verify_port(struct uart_port *port,
 	return 0;
 }
 
-static struct uart_ops pch_uart_ops = {
-	.tx_empty = pch_uart_tx_empty,
-	.set_mctrl = pch_uart_set_mctrl,
-	.get_mctrl = pch_uart_get_mctrl,
-	.stop_tx = pch_uart_stop_tx,
-	.start_tx = pch_uart_start_tx,
-	.stop_rx = pch_uart_stop_rx,
-	.enable_ms = pch_uart_enable_ms,
-	.break_ctl = pch_uart_break_ctl,
-	.startup = pch_uart_startup,
-	.shutdown = pch_uart_shutdown,
-	.set_termios = pch_uart_set_termios,
-/*	.pm		= pch_uart_pm,		Not supported yet */
-/*	.set_wake	= pch_uart_set_wake,	Not supported yet */
-	.type = pch_uart_type,
-	.release_port = pch_uart_release_port,
-	.request_port = pch_uart_request_port,
-	.config_port = pch_uart_config_port,
-	.verify_port = pch_uart_verify_port
-};
-
-#ifdef CONFIG_SERIAL_PCH_UART_CONSOLE
-
 /*
  *	Wait for transmitter & holding register to empty
  */
@@ -1547,6 +1524,84 @@ static void wait_for_xmitr(struct eg20t_port *up, int bits)
 	}
 }
 
+#ifdef CONFIG_CONSOLE_POLL
+/*
+ * Console polling routines for communicate via uart while
+ * in an interrupt or debug context.
+ */
+static int pch_uart_get_poll_char(struct uart_port *port)
+{
+	struct eg20t_port *priv =
+		container_of(port, struct eg20t_port, port);
+	u8 lsr = ioread8(priv->membase + UART_LSR);
+
+	if (!(lsr & UART_LSR_DR))
+		return NO_POLL_CHAR;
+
+	return ioread8(priv->membase + PCH_UART_RBR);
+}
+
+
+static void pch_uart_put_poll_char(struct uart_port *port,
+			 unsigned char c)
+{
+	unsigned int ier;
+	struct eg20t_port *priv =
+		container_of(port, struct eg20t_port, port);
+
+	/*
+	 * First save the IER then disable the interrupts
+	 */
+	ier = ioread8(priv->membase + UART_IER);
+	pch_uart_hal_disable_interrupt(priv, PCH_UART_HAL_ALL_INT);
+
+	wait_for_xmitr(priv, UART_LSR_THRE);
+	/*
+	 * Send the character out.
+	 * If a LF, also do CR...
+	 */
+	iowrite8(c, priv->membase + PCH_UART_THR);
+	if (c == 10) {
+		wait_for_xmitr(priv, UART_LSR_THRE);
+		iowrite8(13, priv->membase + PCH_UART_THR);
+	}
+
+	/*
+	 * Finally, wait for transmitter to become empty
+	 * and restore the IER
+	 */
+	wait_for_xmitr(priv, BOTH_EMPTY);
+	iowrite8(ier, priv->membase + UART_IER);
+}
+#endif /* CONFIG_CONSOLE_POLL */
+
+static struct uart_ops pch_uart_ops = {
+	.tx_empty = pch_uart_tx_empty,
+	.set_mctrl = pch_uart_set_mctrl,
+	.get_mctrl = pch_uart_get_mctrl,
+	.stop_tx = pch_uart_stop_tx,
+	.start_tx = pch_uart_start_tx,
+	.stop_rx = pch_uart_stop_rx,
+	.enable_ms = pch_uart_enable_ms,
+	.break_ctl = pch_uart_break_ctl,
+	.startup = pch_uart_startup,
+	.shutdown = pch_uart_shutdown,
+	.set_termios = pch_uart_set_termios,
+/*	.pm		= pch_uart_pm,		Not supported yet */
+/*	.set_wake	= pch_uart_set_wake,	Not supported yet */
+	.type = pch_uart_type,
+	.release_port = pch_uart_release_port,
+	.request_port = pch_uart_request_port,
+	.config_port = pch_uart_config_port,
+	.verify_port = pch_uart_verify_port,
+#ifdef CONFIG_CONSOLE_POLL
+	.poll_get_char = pch_uart_get_poll_char,
+	.poll_put_char = pch_uart_put_poll_char,
+#endif
+};
+
+#ifdef CONFIG_SERIAL_PCH_UART_CONSOLE
+
 static void pch_console_putchar(struct uart_port *port, int ch)
 {
 	struct eg20t_port *priv =
@@ -1655,7 +1710,7 @@ static struct console pch_console = {
 #define PCH_CONSOLE	(&pch_console)
 #else
 #define PCH_CONSOLE	NULL
-#endif
+#endif	/* CONFIG_SERIAL_PCH_UART_CONSOLE */
 
 static struct uart_driver pch_uart_driver = {
 	.owner = THIS_MODULE,