Merge tag 'tty-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty / serial updates from Greg KH:
 "Here is the big set of tty and serial driver changes for 6.8-rc1.

  As usual, Jiri has a bunch of refactoring and cleanups for the tty
  core and drivers in here, along with the usual set of rs485 updates
  (someday this might work properly...)

  Along with those, in here are changes for:

   - sc16is7xx serial driver updates

   - platform driver removal api updates

   - amba-pl011 driver updates

   - tty driver binding updates

   - other small tty/serial driver updates and changes

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

* tag 'tty-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (197 commits)
  serial: sc16is7xx: refactor EFR lock
  serial: sc16is7xx: reorder code to remove prototype declarations
  serial: sc16is7xx: refactor FIFO access functions to increase commonality
  serial: sc16is7xx: drop unneeded MODULE_ALIAS
  serial: sc16is7xx: replace hardcoded divisor value with BIT() macro
  serial: sc16is7xx: add explicit return for some switch default cases
  serial: sc16is7xx: add macro for max number of UART ports
  serial: sc16is7xx: add driver name to struct uart_driver
  serial: sc16is7xx: use i2c_get_match_data()
  serial: sc16is7xx: use spi_get_device_match_data()
  serial: sc16is7xx: use DECLARE_BITMAP for sc16is7xx_lines bitfield
  serial: sc16is7xx: improve do/while loop in sc16is7xx_irq()
  serial: sc16is7xx: remove obsolete loop in sc16is7xx_port_irq()
  serial: sc16is7xx: set safe default SPI clock frequency
  serial: sc16is7xx: add check for unsupported SPI modes during probe
  serial: sc16is7xx: fix invalid sc16is7xx_lines bitfield in case of probe error
  serial: 8250_exar: Set missing rs485_supported flag
  serial: omap: do not override settings for RS485 support
  serial: core, imx: do not set RS485 enabled if it is not supported
  serial: core: make sure RS485 cannot be enabled when it is not supported
  ...

2 files changed, 18 insertions, 19 deletions

diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 99361618c31f..0b0324fe4aff 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -79,8 +79,8 @@ struct raw3215_info {
 	struct ccw_device *cdev;      /* device for tty driver */
 	spinlock_t *lock;	      /* pointer to irq lock */
 	int flags;		      /* state flags */
-	char *buffer;		      /* pointer to output buffer */
-	char *inbuf;		      /* pointer to input buffer */
+	u8 *buffer;		      /* pointer to output buffer */
+	u8 *inbuf;		      /* pointer to input buffer */
 	int head;		      /* first free byte in output buffer */
 	int count;		      /* number of bytes in output buffer */
 	int written;		      /* number of bytes in write requests */
@@ -89,7 +89,6 @@ struct raw3215_info {
 	wait_queue_head_t empty_wait; /* wait queue for flushing */
 	struct timer_list timer;      /* timer for delayed output */
 	int line_pos;		      /* position on the line (for tabs) */
-	char ubuffer[80];	      /* copy_from_user buffer */
 };
 
 /* array of 3215 devices structures */
@@ -523,12 +522,14 @@ static unsigned int raw3215_make_room(struct raw3215_info *raw,
  *	string	without blocking.
  *	Return value is the number of bytes copied.
  */
-static unsigned int raw3215_addtext(const char *str, unsigned int length,
+static unsigned int raw3215_addtext(const u8 *str, size_t length,
 				    struct raw3215_info *raw, int opmode,
 				    unsigned int todrop)
 {
-	unsigned int c, ch, i, blanks, expanded_size = 0;
+	unsigned int i, blanks, expanded_size = 0;
 	unsigned int column = raw->line_pos;
+	size_t c;
+	u8 ch;
 
 	if (opmode == RAW3215_COUNT)
 		todrop = 0;
@@ -559,7 +560,7 @@ static unsigned int raw3215_addtext(const char *str, unsigned int length,
 		if (todrop && expanded_size < todrop)	/* Drop head data */
 			continue;
 		for (i = 0; i < blanks; i++) {
-			raw->buffer[raw->head] = (char)_ascebc[(int)ch];
+			raw->buffer[raw->head] = _ascebc[ch];
 			raw->head = (raw->head + 1) & (RAW3215_BUFFER_SIZE - 1);
 			raw->count++;
 		}
@@ -571,8 +572,8 @@ static unsigned int raw3215_addtext(const char *str, unsigned int length,
 /*
  * String write routine for 3215 devices
  */
-static void raw3215_write(struct raw3215_info *raw, const char *str,
-			  unsigned int length)
+static void raw3215_write(struct raw3215_info *raw, const u8 *str,
+			  size_t length)
 {
 	unsigned int count, avail;
 	unsigned long flags;
@@ -597,7 +598,7 @@ static void raw3215_write(struct raw3215_info *raw, const char *str,
 /*
  * Put character routine for 3215 devices
  */
-static void raw3215_putchar(struct raw3215_info *raw, unsigned char ch)
+static void raw3215_putchar(struct raw3215_info *raw, u8 ch)
 {
 	raw3215_write(raw, &ch, 1);
 }
@@ -824,12 +825,10 @@ static struct ccw_driver raw3215_ccw_driver = {
 	.int_class	= IRQIO_C15,
 };
 
-static void handle_write(struct raw3215_info *raw, const char *str, int count)
+static void handle_write(struct raw3215_info *raw, const u8 *str, size_t count)
 {
-	int i;
-
 	while (count > 0) {
-		i = min_t(int, count, RAW3215_BUFFER_SIZE - 1);
+		size_t i = min_t(size_t, count, RAW3215_BUFFER_SIZE - 1);
 		raw3215_write(raw, str, i);
 		count -= i;
 		str += i;
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index 363315fa1666..251d2a1c3eef 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -54,7 +54,7 @@ struct tty3270_attribute {
 };
 
 struct tty3270_cell {
-	unsigned char character;
+	u8 character;
 	struct tty3270_attribute attributes;
 };
 
@@ -123,7 +123,7 @@ struct tty3270 {
 
 	/* Character array for put_char/flush_chars. */
 	unsigned int char_count;
-	char char_buf[TTY3270_CHAR_BUF_SIZE];
+	u8 char_buf[TTY3270_CHAR_BUF_SIZE];
 };
 
 /* tty3270->update_flags. See tty3270_update for details. */
@@ -1255,7 +1255,7 @@ static unsigned int tty3270_write_room(struct tty_struct *tty)
  * Insert character into the screen at the current position with the
  * current color and highlight. This function does NOT do cursor movement.
  */
-static void tty3270_put_character(struct tty3270 *tp, char ch)
+static void tty3270_put_character(struct tty3270 *tp, u8 ch)
 {
 	struct tty3270_line *line;
 	struct tty3270_cell *cell;
@@ -1561,7 +1561,7 @@ static void tty3270_goto_xy(struct tty3270 *tp, int cx, int cy)
  *  Pn is a numeric parameter, a string of zero or more decimal digits.
  *  Ps is a selective parameter.
  */
-static void tty3270_escape_sequence(struct tty3270 *tp, char ch)
+static void tty3270_escape_sequence(struct tty3270 *tp, u8 ch)
 {
 	enum { ES_NORMAL, ES_ESC, ES_SQUARE, ES_PAREN, ES_GETPARS };
 
@@ -1726,7 +1726,7 @@ static void tty3270_escape_sequence(struct tty3270 *tp, char ch)
  * String write routine for 3270 ttys
  */
 static void tty3270_do_write(struct tty3270 *tp, struct tty_struct *tty,
-			     const unsigned char *buf, int count)
+			     const u8 *buf, size_t count)
 {
 	int i_msg, i;
 
@@ -2052,7 +2052,7 @@ con3270_write(struct console *co, const char *str, unsigned int count)
 {
 	struct tty3270 *tp = co->data;
 	unsigned long flags;
-	char c;
+	u8 c;
 
 	spin_lock_irqsave(&tp->view.lock, flags);
 	while (count--) {