Merge tag 'tty-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial patches from Greg Kroah-Hartman:
 "Here's the big tty/serial driver patches for 3.9-rc1.

  More tty port rework and fixes from Jiri here, as well as lots of
  individual serial driver updates and fixes.

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

* tag 'tty-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (140 commits)
  tty: mxser: improve error handling in mxser_probe() and mxser_module_init()
  serial: imx: fix uninitialized variable warning
  serial: tegra: assume CONFIG_OF
  TTY: do not update atime/mtime on read/write
  lguest: select CONFIG_TTY to build properly.
  ARM defconfigs: add missing inclusions of linux/platform_device.h
  fb/exynos: include platform_device.h
  ARM: sa1100/assabet: include platform_device.h directly
  serial: imx: Fix recursive locking bug
  pps: Fix build breakage from decoupling pps from tty
  tty: Remove ancient hardpps()
  pps: Additional cleanups in uart_handle_dcd_change
  pps: Move timestamp read into PPS code proper
  pps: Don't crash the machine when exiting will do
  pps: Fix a use-after free bug when unregistering a source.
  pps: Use pps_lookup_dev to reduce ldisc coupling
  pps: Add pps_lookup_dev() function
  tty: serial: uartlite: Support uartlite on big and little endian systems
  tty: serial: uartlite: Fix sparse and checkpatch warnings
  serial/arc-uart: Miscll DT related updates (Grant's review comments)
  ...

Fix up trivial conflicts, mostly just due to the TTY config option
clashing with the EXPERIMENTAL removal.

1 files changed, 12 insertions, 5 deletions

diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c
index 2764828251f..05f504e0c27 100644
--- a/drivers/tty/serial/pxa.c
+++ b/drivers/tty/serial/pxa.c
@@ -98,7 +98,6 @@ static void serial_pxa_stop_rx(struct uart_port *port)
 
 static inline void receive_chars(struct uart_pxa_port *up, int *status)
 {
-	struct tty_struct *tty = up->port.state->port.tty;
 	unsigned int ch, flag;
 	int max_count = 256;
 
@@ -168,7 +167,7 @@ static inline void receive_chars(struct uart_pxa_port *up, int *status)
 	ignore_char:
 		*status = serial_in(up, UART_LSR);
 	} while ((*status & UART_LSR_DR) && (max_count-- > 0));
-	tty_flip_buffer_push(tty);
+	tty_flip_buffer_push(&up->port.state->port);
 
 	/* work around Errata #20 according to
 	 * Intel(R) PXA27x Processor Family
@@ -673,8 +672,7 @@ serial_pxa_console_write(struct console *co, const char *s, unsigned int count)
 	unsigned long flags;
 	int locked = 1;
 
-	clk_prepare_enable(up->clk);
-
+	clk_enable(up->clk);
 	local_irq_save(flags);
 	if (up->port.sysrq)
 		locked = 0;
@@ -701,8 +699,8 @@ serial_pxa_console_write(struct console *co, const char *s, unsigned int count)
 	if (locked)
 		spin_unlock(&up->port.lock);
 	local_irq_restore(flags);
+	clk_disable(up->clk);
 
-	clk_disable_unprepare(up->clk);
 }
 
 #ifdef CONFIG_CONSOLE_POLL
@@ -899,6 +897,12 @@ static int serial_pxa_probe(struct platform_device *dev)
 		goto err_free;
 	}
 
+	ret = clk_prepare(sport->clk);
+	if (ret) {
+		clk_put(sport->clk);
+		goto err_free;
+	}
+
 	sport->port.type = PORT_PXA;
 	sport->port.iotype = UPIO_MEM;
 	sport->port.mapbase = mmres->start;
@@ -930,6 +934,7 @@ static int serial_pxa_probe(struct platform_device *dev)
 	return 0;
 
  err_clk:
+	clk_unprepare(sport->clk);
 	clk_put(sport->clk);
  err_free:
 	kfree(sport);
@@ -943,6 +948,8 @@ static int serial_pxa_remove(struct platform_device *dev)
 	platform_set_drvdata(dev, NULL);
 
 	uart_remove_one_port(&serial_pxa_reg, &sport->port);
+
+	clk_unprepare(sport->clk);
 	clk_put(sport->clk);
 	kfree(sport);