Merge tag 'tty-6.1-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 6.1-rc1.

  Lots of cleanups in here, no real new functionality this time around,
  with the diffstat being that we removed more lines than we added!

  Included in here are:

   - termios unification cleanups from Al Viro, it's nice to finally get
     this work done

   - tty serial transmit cleanups in various drivers in preparation for
     more cleanup and unification in future releases (that work was not
     ready for this release)

   - n_gsm fixes and updates

   - ktermios cleanups and code reductions

   - dt bindings json conversions and updates for new devices

   - some serial driver updates for new devices

   - lots of other tiny cleanups and janitorial stuff. Full details in
     the shortlog.

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

* tag 'tty-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (102 commits)
  serial: cpm_uart: Don't request IRQ too early for console port
  tty: serial: do unlock on a common path in altera_jtaguart_console_putc()
  tty: serial: unify TX space reads under altera_jtaguart_tx_space()
  tty: serial: use FIELD_GET() in lqasc_tx_ready()
  tty: serial: extend lqasc_tx_ready() to lqasc_console_putchar()
  tty: serial: allow pxa.c to be COMPILE_TESTed
  serial: stm32: Fix unused-variable warning
  tty: serial: atmel: Add COMMON_CLK dependency to SERIAL_ATMEL
  serial: 8250: Fix restoring termios speed after suspend
  serial: Deassert Transmit Enable on probe in driver-specific way
  serial: 8250_dma: Convert to use uart_xmit_advance()
  serial: 8250_omap: Convert to use uart_xmit_advance()
  MAINTAINERS: Solve warning regarding inexistent atmel-usart binding
  serial: stm32: Deassert Transmit Enable on ->rs485_config()
  serial: ar933x: Deassert Transmit Enable on ->rs485_config()
  tty: serial: atmel: Use FIELD_PREP/FIELD_GET
  tty: serial: atmel: Make the driver aware of the existence of GCLK
  tty: serial: atmel: Only divide Clock Divisor if the IP is USART
  tty: serial: atmel: Separate mode clearing between UART and USART
  dt-bindings: serial: atmel,at91-usart: Add gclk as a possible USART clock
  ...

1 files changed, 15 insertions, 15 deletions

diff --git a/drivers/tty/serial/mpc52xx_uart.c b/drivers/tty/serial/mpc52xx_uart.c
index 3f1986c89694..73362d4bc45d 100644
--- a/drivers/tty/serial/mpc52xx_uart.c
+++ b/drivers/tty/serial/mpc52xx_uart.c
@@ -101,7 +101,7 @@ struct psc_ops {
 	void		(*cw_restore_ints)(struct uart_port *port);
 	unsigned int	(*set_baudrate)(struct uart_port *port,
 					struct ktermios *new,
-					struct ktermios *old);
+					const struct ktermios *old);
 	int		(*clock_alloc)(struct uart_port *port);
 	void		(*clock_relse)(struct uart_port *port);
 	int		(*clock)(struct uart_port *port, int enable);
@@ -287,7 +287,7 @@ static void mpc52xx_psc_cw_restore_ints(struct uart_port *port)
 
 static unsigned int mpc5200_psc_set_baudrate(struct uart_port *port,
 					     struct ktermios *new,
-					     struct ktermios *old)
+					     const struct ktermios *old)
 {
 	unsigned int baud;
 	unsigned int divisor;
@@ -305,7 +305,7 @@ static unsigned int mpc5200_psc_set_baudrate(struct uart_port *port,
 
 static unsigned int mpc5200b_psc_set_baudrate(struct uart_port *port,
 					      struct ktermios *new,
-					      struct ktermios *old)
+					      const struct ktermios *old)
 {
 	unsigned int baud;
 	unsigned int divisor;
@@ -533,7 +533,7 @@ static void mpc512x_psc_cw_restore_ints(struct uart_port *port)
 
 static unsigned int mpc512x_psc_set_baudrate(struct uart_port *port,
 					     struct ktermios *new,
-					     struct ktermios *old)
+					     const struct ktermios *old)
 {
 	unsigned int baud;
 	unsigned int divisor;
@@ -880,7 +880,7 @@ static inline void mpc5125_set_divisor(struct mpc5125_psc __iomem *psc,
 
 static unsigned int mpc5125_psc_set_baudrate(struct uart_port *port,
 					     struct ktermios *new,
-					     struct ktermios *old)
+					     const struct ktermios *old)
 {
 	unsigned int baud;
 	unsigned int divisor;
@@ -1167,7 +1167,7 @@ mpc52xx_uart_shutdown(struct uart_port *port)
 
 static void
 mpc52xx_uart_set_termios(struct uart_port *port, struct ktermios *new,
-			 struct ktermios *old)
+			 const struct ktermios *old)
 {
 	unsigned long flags;
 	unsigned char mr1, mr2;
@@ -1364,7 +1364,7 @@ static const struct uart_ops mpc52xx_uart_ops = {
 /* Interrupt handling                                                       */
 /* ======================================================================== */
 
-static inline unsigned int
+static inline bool
 mpc52xx_uart_int_rx_chars(struct uart_port *port)
 {
 	struct tty_port *tport = &port->state->port;
@@ -1425,7 +1425,7 @@ mpc52xx_uart_int_rx_chars(struct uart_port *port)
 	return psc_ops->raw_rx_rdy(port);
 }
 
-static inline int
+static inline bool
 mpc52xx_uart_int_tx_chars(struct uart_port *port)
 {
 	struct circ_buf *xmit = &port->state->xmit;
@@ -1435,13 +1435,13 @@ mpc52xx_uart_int_tx_chars(struct uart_port *port)
 		psc_ops->write_char(port, port->x_char);
 		port->icount.tx++;
 		port->x_char = 0;
-		return 1;
+		return true;
 	}
 
 	/* Nothing to do ? */
 	if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
 		mpc52xx_uart_stop_tx(port);
-		return 0;
+		return false;
 	}
 
 	/* Send chars */
@@ -1460,23 +1460,23 @@ mpc52xx_uart_int_tx_chars(struct uart_port *port)
 	/* Maybe we're done after all */
 	if (uart_circ_empty(xmit)) {
 		mpc52xx_uart_stop_tx(port);
-		return 0;
+		return false;
 	}
 
-	return 1;
+	return true;
 }
 
 static irqreturn_t
 mpc5xxx_uart_process_int(struct uart_port *port)
 {
 	unsigned long pass = ISR_PASS_LIMIT;
-	unsigned int keepgoing;
+	bool keepgoing;
 	u8 status;
 
 	/* While we have stuff to do, we continue */
 	do {
 		/* If we don't find anything to do, we stop */
-		keepgoing = 0;
+		keepgoing = false;
 
 		psc_ops->rx_clr_irq(port);
 		if (psc_ops->rx_rdy(port))
@@ -1495,7 +1495,7 @@ mpc5xxx_uart_process_int(struct uart_port *port)
 
 		/* Limit number of iteration */
 		if (!(--pass))
-			keepgoing = 0;
+			keepgoing = false;
 
 	} while (keepgoing);