Merge tag 'tty-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here's the tty/serial patchset for 4.10-rc1.

  It's been a quiet kernel cycle for this subsystem, just a small number
  of changes. A few new serial drivers, and some cleanups to the old
  vgacon logic, and other minor serial driver changes as well.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (54 commits)
  serial: 8250_mid fix calltrace when hotplug 8250 serial controller
  console: Move userspace I/O out of console_lock to fix lockdep warning
  tty: nozomi: avoid sprintf buffer overflow
  serial: 8250_pci: Detach low-level driver during PCI error recovery
  serial: core: don't check port twice in a row
  mxs-auart: count FIFO overrun errors
  serial: 8250_dw: Add support for IrDA SIR mode
  serial: 8250: Expose set_ldisc function
  serial: 8250: Add IrDA to UART capabilities
  serial: 8250_dma: power off device after TX is done
  serial: 8250_port: export serial8250_rpm_{get|put}_tx()
  serial: sunsu: Free memory when probe fails
  serial: sunhv: Free memory when remove() is called
  vt: fix Scroll Lock LED trigger name
  tty: typo in comments in drivers/tty/vt/keyboard.c
  tty: amba-pl011: Add earlycon support for SBSA UART
  tty: nozomi: use permission-specific DEVICE_ATTR variants
  tty: serial: Make the STM32 serial port depend on it's arch
  serial: ifx6x60: Free memory when probe fails
  serial: ioc4_serial: Free memory when kzalloc fails during probe
  ...

1 files changed, 11 insertions, 5 deletions

diff --git a/include/linux/console.h b/include/linux/console.h
index d530c4627e54..9c26c6685587 100644
--- a/include/linux/console.h
+++ b/include/linux/console.h
@@ -28,9 +28,17 @@ struct tty_struct;
 #define VT100ID "\033[?1;2c"
 #define VT102ID "\033[?6c"
 
+enum con_scroll {
+	SM_UP,
+	SM_DOWN,
+};
+
 /**
  * struct consw - callbacks for consoles
  *
+ * @con_scroll: move lines from @top to @bottom in direction @dir by @lines.
+ *		Return true if no generic handling should be done.
+ *		Invoked by csi_M and printing to the console.
  * @con_set_palette: sets the palette of the console to @table (optional)
  * @con_scrolldelta: the contents of the console should be scrolled by @lines.
  *		     Invoked by user. (optional)
@@ -44,7 +52,9 @@ struct consw {
 	void	(*con_putc)(struct vc_data *, int, int, int);
 	void	(*con_putcs)(struct vc_data *, const unsigned short *, int, int, int);
 	void	(*con_cursor)(struct vc_data *, int);
-	int	(*con_scroll)(struct vc_data *, int, int, int, int);
+	bool	(*con_scroll)(struct vc_data *, unsigned int top,
+			unsigned int bottom, enum con_scroll dir,
+			unsigned int lines);
 	int	(*con_switch)(struct vc_data *);
 	int	(*con_blank)(struct vc_data *, int, int);
 	int	(*con_font_set)(struct vc_data *, struct console_font *, unsigned);
@@ -99,10 +109,6 @@ static inline int con_debug_leave(void)
 }
 #endif
 
-/* scroll */
-#define SM_UP       (1)
-#define SM_DOWN     (2)
-
 /* cursor */
 #define CM_DRAW     (1)
 #define CM_ERASE    (2)