Merge 6.17-rc6 into tty-next

We need the tty/serial fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

4 files changed, 14 insertions, 24 deletions

diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index fffc30b9ea54..6b58f340f210 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -543,10 +543,10 @@ static ssize_t hvc_write(struct tty_struct *tty, const u8 *buf, size_t count)
 	}
 
 	/*
-	 * Racy, but harmless, kick thread if there is still pending data.
+	 * Kick thread to flush if there's still pending data
+	 * or to wakeup the write queue.
 	 */
-	if (hp->n_outbuf)
-		hvc_kick();
+	hvc_kick();
 
 	return written;
 }
diff --git a/drivers/tty/serial/8250/8250_rsa.c b/drivers/tty/serial/8250/8250_rsa.c
index ff52ad02f6be..40a3dbd9e452 100644
--- a/drivers/tty/serial/8250/8250_rsa.c
+++ b/drivers/tty/serial/8250/8250_rsa.c
@@ -146,7 +146,7 @@ void rsa_enable(struct uart_8250_port *up)
 	if (up->port.uartclk == SERIAL_RSA_BAUD_BASE * 16)
 		serial_out(up, UART_RSA_FRR, 0);
 }
-EXPORT_SYMBOL_GPL_FOR_MODULES(rsa_enable, "8250_base");
+EXPORT_SYMBOL_FOR_MODULES(rsa_enable, "8250_base");
 
 /*
  * Attempts to turn off the RSA FIFO and resets the RSA board back to 115kbps compat mode. It is
@@ -178,7 +178,7 @@ void rsa_disable(struct uart_8250_port *up)
 	if (result)
 		up->port.uartclk = SERIAL_RSA_BAUD_BASE_LO * 16;
 }
-EXPORT_SYMBOL_GPL_FOR_MODULES(rsa_disable, "8250_base");
+EXPORT_SYMBOL_FOR_MODULES(rsa_disable, "8250_base");
 
 void rsa_autoconfig(struct uart_8250_port *up)
 {
@@ -191,7 +191,7 @@ void rsa_autoconfig(struct uart_8250_port *up)
 	if (__rsa_enable(up))
 		up->port.type = PORT_RSA;
 }
-EXPORT_SYMBOL_GPL_FOR_MODULES(rsa_autoconfig, "8250_base");
+EXPORT_SYMBOL_FOR_MODULES(rsa_autoconfig, "8250_base");
 
 void rsa_reset(struct uart_8250_port *up)
 {
@@ -200,7 +200,7 @@ void rsa_reset(struct uart_8250_port *up)
 
 	serial_out(up, UART_RSA_FRR, 0);
 }
-EXPORT_SYMBOL_GPL_FOR_MODULES(rsa_reset, "8250_base");
+EXPORT_SYMBOL_FOR_MODULES(rsa_reset, "8250_base");
 
 #ifdef CONFIG_SERIAL_8250_DEPRECATED_OPTIONS
 #ifndef MODULE
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index 11744306b1de..1a2c4c14f6aa 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -1177,17 +1177,6 @@ static int sc16is7xx_startup(struct uart_port *port)
 	sc16is7xx_port_write(port, SC16IS7XX_FCR_REG,
 			     SC16IS7XX_FCR_FIFO_BIT);
 
-	/* Enable EFR */
-	sc16is7xx_port_write(port, SC16IS7XX_LCR_REG,
-			     SC16IS7XX_LCR_CONF_MODE_B);
-
-	regcache_cache_bypass(one->regmap, true);
-
-	/* Enable write access to enhanced features and internal clock div */
-	sc16is7xx_port_update(port, SC16IS7XX_EFR_REG,
-			      SC16IS7XX_EFR_ENABLE_BIT,
-			      SC16IS7XX_EFR_ENABLE_BIT);
-
 	/* Enable TCR/TLR */
 	sc16is7xx_port_update(port, SC16IS7XX_MCR_REG,
 			      SC16IS7XX_MCR_TCRTLR_BIT,
@@ -1199,7 +1188,8 @@ static int sc16is7xx_startup(struct uart_port *port)
 			     SC16IS7XX_TCR_RX_RESUME(24) |
 			     SC16IS7XX_TCR_RX_HALT(48));
 
-	regcache_cache_bypass(one->regmap, false);
+	/* Disable TCR/TLR access */
+	sc16is7xx_port_update(port, SC16IS7XX_MCR_REG, SC16IS7XX_MCR_TCRTLR_BIT, 0);
 
 	/* Now, initialize the UART */
 	sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, SC16IS7XX_LCR_WORD_LEN_8);
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index fe457bf1e15b..a66b44d21fba 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -33,7 +33,6 @@
 #define CDNS_UART_MINOR		0	/* works best with devtmpfs */
 #define CDNS_UART_NR_PORTS	16
 #define CDNS_UART_FIFO_SIZE	64	/* FIFO size */
-#define CDNS_UART_REGISTER_SPACE	0x1000
 #define TX_TIMEOUT		500000
 
 /* Rx Trigger level */
@@ -1098,15 +1097,15 @@ static int cdns_uart_verify_port(struct uart_port *port,
  */
 static int cdns_uart_request_port(struct uart_port *port)
 {
-	if (!request_mem_region(port->mapbase, CDNS_UART_REGISTER_SPACE,
+	if (!request_mem_region(port->mapbase, port->mapsize,
 					 CDNS_UART_NAME)) {
 		return -ENOMEM;
 	}
 
-	port->membase = ioremap(port->mapbase, CDNS_UART_REGISTER_SPACE);
+	port->membase = ioremap(port->mapbase, port->mapsize);
 	if (!port->membase) {
 		dev_err(port->dev, "Unable to map registers\n");
-		release_mem_region(port->mapbase, CDNS_UART_REGISTER_SPACE);
+		release_mem_region(port->mapbase, port->mapsize);
 		return -ENOMEM;
 	}
 	return 0;
@@ -1121,7 +1120,7 @@ static int cdns_uart_request_port(struct uart_port *port)
  */
 static void cdns_uart_release_port(struct uart_port *port)
 {
-	release_mem_region(port->mapbase, CDNS_UART_REGISTER_SPACE);
+	release_mem_region(port->mapbase, port->mapsize);
 	iounmap(port->membase);
 	port->membase = NULL;
 }
@@ -1780,6 +1779,7 @@ static int cdns_uart_probe(struct platform_device *pdev)
 	 * and triggers invocation of the config_port() entry point.
 	 */
 	port->mapbase = res->start;
+	port->mapsize = resource_size(res);
 	port->irq = irq;
 	port->dev = &pdev->dev;
 	port->uartclk = clk_get_rate(cdns_uart_data->uartclk);