Merge tag 'tty-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty / serial driver updates from Greg KH:
 "Here is the big set of TTY and Serial driver updates for 6.17-rc1.
  Included in here is the following types of changes:

   - another cleanup round from Jiri for the 8250 serial driver and some
     other tty drivers, things are slowly getting better with our apis
     thanks to this work. This touched many tty drivers all over the
     tree.

   - qcom_geni_serial driver update for new platforms and devices

   - 8250 quirk handling fixups

   - dt serial binding updates for different boards/platforms

   - other minor cleanups and fixes

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

* tag 'tty-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (79 commits)
  dt-bindings: serial: snps-dw-apb-uart: Allow use of a power-domain
  serial: 8250: fix panic due to PSLVERR
  dt-bindings: serial: samsung: add samsung,exynos2200-uart compatible
  vt: defkeymap: Map keycodes above 127 to K_HOLE
  vt: keyboard: Don't process Unicode characters in K_OFF mode
  serial: qcom-geni: Enable Serial on SA8255p Qualcomm platforms
  serial: qcom-geni: Enable PM runtime for serial driver
  serial: qcom-geni: move clock-rate logic to separate function
  serial: qcom-geni: move resource control logic to separate functions
  serial: qcom-geni: move resource initialization to separate function
  soc: qcom: geni-se: Enable QUPs on SA8255p Qualcomm platforms
  dt-bindings: qcom: geni-se: describe SA8255p
  dt-bindings: serial: describe SA8255p
  serial: 8250_dw: Fix typo "notifer"
  dt-bindings: serial: 8250: spacemit: set clocks property as required
  dt-bindings: serial: renesas: Document RZ/V2N SCIF
  serial: 8250_ce4100: Fix CONFIG_SERIAL_8250=n build
  tty: omit need_resched() before cond_resched()
  serial: 8250_ni: Reorder local variables
  serial: 8250_ni: Fix build warning
  ...

4 files changed, 63 insertions, 46 deletions

diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index 144de7a7948d..01efdce0fda0 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -46,8 +46,8 @@ struct plat_serial8250_port {
 	unsigned int	type;		/* If UPF_FIXED_TYPE */
 	upf_t		flags;		/* UPF_* flags */
 	u16		bugs;		/* port bugs */
-	unsigned int	(*serial_in)(struct uart_port *, int);
-	void		(*serial_out)(struct uart_port *, int, int);
+	u32		(*serial_in)(struct uart_port *, unsigned int offset);
+	void		(*serial_out)(struct uart_port *, unsigned int offset, u32 val);
 	u32		(*dl_read)(struct uart_8250_port *up);
 	void		(*dl_write)(struct uart_8250_port *up, u32 value);
 	void		(*set_termios)(struct uart_port *,
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 914b5e97e056..84b4648ead7e 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -443,8 +443,8 @@ struct uart_port {
 	spinlock_t		lock;			/* port lock */
 	unsigned long		iobase;			/* in/out[bwl] */
 	unsigned char __iomem	*membase;		/* read/write[bwl] */
-	unsigned int		(*serial_in)(struct uart_port *, int);
-	void			(*serial_out)(struct uart_port *, int, int);
+	u32			(*serial_in)(struct uart_port *, unsigned int offset);
+	void			(*serial_out)(struct uart_port *, unsigned int offset, u32 val);
 	void			(*set_termios)(struct uart_port *,
 				               struct ktermios *new,
 				               const struct ktermios *old);
@@ -1101,8 +1101,6 @@ static inline bool uart_console_registered(struct uart_port *port)
 	return uart_console(port) && console_is_registered(port->cons);
 }
 
-struct uart_port *uart_get_console(struct uart_port *ports, int nr,
-				   struct console *c);
 int uart_parse_earlycon(char *p, enum uart_iotype *iotype,
 			resource_size_t *addr, char **options);
 void uart_parse_options(const char *options, int *baud, int *parity, int *bits,
diff --git a/include/linux/tty_port.h b/include/linux/tty_port.h
index 08f89a598366..332ddb93603e 100644
--- a/include/linux/tty_port.h
+++ b/include/linux/tty_port.h
@@ -232,7 +232,7 @@ bool tty_port_carrier_raised(struct tty_port *port);
 void tty_port_raise_dtr_rts(struct tty_port *port);
 void tty_port_lower_dtr_rts(struct tty_port *port);
 void tty_port_hangup(struct tty_port *port);
-void tty_port_tty_hangup(struct tty_port *port, bool check_clocal);
+void __tty_port_tty_hangup(struct tty_port *port, bool check_clocal, bool async);
 void tty_port_tty_wakeup(struct tty_port *port);
 int tty_port_block_til_ready(struct tty_port *port, struct tty_struct *tty,
 		struct file *filp);
@@ -251,4 +251,23 @@ static inline int tty_port_users(struct tty_port *port)
 	return port->count + port->blocked_open;
 }
 
+/**
+ * tty_port_tty_hangup - helper to hang up a tty asynchronously
+ * @port: tty port
+ * @check_clocal: hang only ttys with %CLOCAL unset?
+ */
+static inline void tty_port_tty_hangup(struct tty_port *port, bool check_clocal)
+{
+	__tty_port_tty_hangup(port, check_clocal, true);
+}
+
+/**
+ * tty_port_tty_vhangup - helper to hang up a tty synchronously
+ * @port: tty port
+ */
+static inline void tty_port_tty_vhangup(struct tty_port *port)
+{
+	__tty_port_tty_hangup(port, false, false);
+}
+
 #endif
diff --git a/include/uapi/linux/vt.h b/include/uapi/linux/vt.h
index e5b0c492aa18..b60fcdfb2746 100644
--- a/include/uapi/linux/vt.h
+++ b/include/uapi/linux/vt.h
@@ -14,77 +14,77 @@
 		/* Note: the ioctl VT_GETSTATE does not work for
 		   consoles 16 and higher (since it returns a short) */
 
-/* 0x56 is 'V', to avoid collision with termios and kd */
+/* 'V' to avoid collision with termios and kd */
 
-#define VT_OPENQRY	0x5600	/* find available vt */
+#define VT_OPENQRY		_IO('V', 0x00)	/* find available vt */
 
 struct vt_mode {
-	char mode;		/* vt mode */
-	char waitv;		/* if set, hang on writes if not active */
-	short relsig;		/* signal to raise on release req */
-	short acqsig;		/* signal to raise on acquisition */
-	short frsig;		/* unused (set to 0) */
+	__u8 mode;		/* vt mode */
+	__u8 waitv;		/* if set, hang on writes if not active */
+	__s16 relsig;		/* signal to raise on release req */
+	__s16 acqsig;		/* signal to raise on acquisition */
+	__s16 frsig;		/* unused (set to 0) */
 };
-#define VT_GETMODE	0x5601	/* get mode of active vt */
-#define VT_SETMODE	0x5602	/* set mode of active vt */
+#define VT_GETMODE		_IO('V', 0x01)	/* get mode of active vt */
+#define VT_SETMODE		_IO('V', 0x02)	/* set mode of active vt */
 #define		VT_AUTO		0x00	/* auto vt switching */
 #define		VT_PROCESS	0x01	/* process controls switching */
 #define		VT_ACKACQ	0x02	/* acknowledge switch */
 
 struct vt_stat {
-	unsigned short v_active;	/* active vt */
-	unsigned short v_signal;	/* signal to send */
-	unsigned short v_state;		/* vt bitmask */
+	__u16 v_active;	/* active vt */
+	__u16 v_signal;	/* signal to send */
+	__u16 v_state;		/* vt bitmask */
 };
-#define VT_GETSTATE	0x5603	/* get global vt state info */
-#define VT_SENDSIG	0x5604	/* signal to send to bitmask of vts */
+#define VT_GETSTATE		_IO('V', 0x03)	/* get global vt state info */
+#define VT_SENDSIG		_IO('V', 0x04)	/* signal to send to bitmask of vts */
 
-#define VT_RELDISP	0x5605	/* release display */
+#define VT_RELDISP		_IO('V', 0x05)	/* release display */
 
-#define VT_ACTIVATE	0x5606	/* make vt active */
-#define VT_WAITACTIVE	0x5607	/* wait for vt active */
-#define VT_DISALLOCATE	0x5608  /* free memory associated to vt */
+#define VT_ACTIVATE		_IO('V', 0x06)	/* make vt active */
+#define VT_WAITACTIVE		_IO('V', 0x07)	/* wait for vt active */
+#define VT_DISALLOCATE		_IO('V', 0x08)  /* free memory associated to vt */
 
 struct vt_sizes {
-	unsigned short v_rows;		/* number of rows */
-	unsigned short v_cols;		/* number of columns */
-	unsigned short v_scrollsize;	/* number of lines of scrollback */
+	__u16 v_rows;		/* number of rows */
+	__u16 v_cols;		/* number of columns */
+	__u16 v_scrollsize;	/* number of lines of scrollback */
 };
-#define VT_RESIZE	0x5609	/* set kernel's idea of screensize */
+#define VT_RESIZE		_IO('V', 0x09)	/* set kernel's idea of screensize */
 
 struct vt_consize {
-	unsigned short v_rows;	/* number of rows */
-	unsigned short v_cols;	/* number of columns */
-	unsigned short v_vlin;	/* number of pixel rows on screen */
-	unsigned short v_clin;	/* number of pixel rows per character */
-	unsigned short v_vcol;	/* number of pixel columns on screen */
-	unsigned short v_ccol;	/* number of pixel columns per character */
+	__u16 v_rows;	/* number of rows */
+	__u16 v_cols;	/* number of columns */
+	__u16 v_vlin;	/* number of pixel rows on screen */
+	__u16 v_clin;	/* number of pixel rows per character */
+	__u16 v_vcol;	/* number of pixel columns on screen */
+	__u16 v_ccol;	/* number of pixel columns per character */
 };
-#define VT_RESIZEX      0x560A  /* set kernel's idea of screensize + more */
-#define VT_LOCKSWITCH   0x560B  /* disallow vt switching */
-#define VT_UNLOCKSWITCH 0x560C  /* allow vt switching */
-#define VT_GETHIFONTMASK 0x560D  /* return hi font mask */
+#define VT_RESIZEX		_IO('V', 0x0A)  /* set kernel's idea of screensize + more */
+#define VT_LOCKSWITCH		_IO('V', 0x0B)  /* disallow vt switching */
+#define VT_UNLOCKSWITCH		_IO('V', 0x0C)  /* allow vt switching */
+#define VT_GETHIFONTMASK	_IO('V', 0x0D)  /* return hi font mask */
 
 struct vt_event {
-	unsigned int event;
+	__u32 event;
 #define VT_EVENT_SWITCH		0x0001	/* Console switch */
 #define VT_EVENT_BLANK		0x0002	/* Screen blank */
 #define VT_EVENT_UNBLANK	0x0004	/* Screen unblank */
 #define VT_EVENT_RESIZE		0x0008	/* Resize display */
 #define VT_MAX_EVENT		0x000F
-	unsigned int oldev;		/* Old console */
-	unsigned int newev;		/* New console (if changing) */
-	unsigned int pad[4];		/* Padding for expansion */
+	__u32 oldev;		/* Old console */
+	__u32 newev;		/* New console (if changing) */
+	__u32 pad[4];		/* Padding for expansion */
 };
 
-#define VT_WAITEVENT	0x560E	/* Wait for an event */
+#define VT_WAITEVENT		_IO('V', 0x0E)	/* Wait for an event */
 
 struct vt_setactivate {
-	unsigned int console;
+	__u32 console;
 	struct vt_mode mode;
 };
 
-#define VT_SETACTIVATE	0x560F	/* Activate and set the mode of a console */
+#define VT_SETACTIVATE		_IO('V', 0x0F)	/* Activate and set the mode of a console */
 
 /* get console size and cursor position */
 struct vt_consizecsrpos {