-From 469daac0faff06209bc1d1390571b860d153a82b Mon Sep 17 00:00:00 2001
+From c35aec61e5bb0faafb2847a0d750ebd7345a4b0f Mon Sep 17 00:00:00 2001
From: Yangbo Lu <yangbo.lu@nxp.com>
-Date: Wed, 27 Sep 2017 10:33:47 +0800
-Subject: [PATCH] tty: serial: support layerscape
+Date: Wed, 17 Jan 2018 15:40:24 +0800
+Subject: [PATCH 28/30] tty: serial: support layerscape
-This is a integrated patch for layerscape uart support.
+This is an integrated patch for layerscape uart support.
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Signed-off-by: Yuan Yao <yao.yuan@nxp.com>
drivers/tty/serial/fsl_lpuart.c | 66 ++++++++++++++++++++++++++++-------------
1 file changed, 46 insertions(+), 20 deletions(-)
-diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
-index 76103f2c..61453820 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -231,6 +231,8 @@
struct lpuart_port {
struct uart_port port;
struct clk *clk;
-@@ -1348,6 +1350,18 @@ lpuart_set_termios(struct uart_port *port, struct ktermios *termios,
+@@ -1349,6 +1351,18 @@ lpuart_set_termios(struct uart_port *por
/* ask the core to calculate the divisor */
baud = uart_get_baud_rate(port, termios, old, 50, port->uartclk / 16);
spin_lock_irqsave(&sport->port.lock, flags);
sport->port.read_status_mask = 0;
-@@ -1397,22 +1411,11 @@ lpuart_set_termios(struct uart_port *port, struct ktermios *termios,
+@@ -1398,22 +1412,11 @@ lpuart_set_termios(struct uart_port *por
/* restore control register */
writeb(old_cr2, sport->port.membase + UARTCR2);
}
spin_unlock_irqrestore(&sport->port.lock, flags);
-@@ -1640,6 +1643,13 @@ lpuart_console_write(struct console *co, const char *s, unsigned int count)
+@@ -1641,6 +1644,13 @@ lpuart_console_write(struct console *co,
{
struct lpuart_port *sport = lpuart_ports[co->index];
unsigned char old_cr2, cr2;
/* first save CR2 and then disable interrupts */
cr2 = old_cr2 = readb(sport->port.membase + UARTCR2);
-@@ -1654,6 +1664,9 @@ lpuart_console_write(struct console *co, const char *s, unsigned int count)
+@@ -1655,6 +1665,9 @@ lpuart_console_write(struct console *co,
barrier();
writeb(old_cr2, sport->port.membase + UARTCR2);
}
static void
-@@ -1661,6 +1674,13 @@ lpuart32_console_write(struct console *co, const char *s, unsigned int count)
+@@ -1662,6 +1675,13 @@ lpuart32_console_write(struct console *c
{
struct lpuart_port *sport = lpuart_ports[co->index];
unsigned long old_cr, cr;
/* first save CR2 and then disable interrupts */
cr = old_cr = lpuart32_read(sport->port.membase + UARTCTRL);
-@@ -1675,6 +1695,9 @@ lpuart32_console_write(struct console *co, const char *s, unsigned int count)
+@@ -1676,6 +1696,9 @@ lpuart32_console_write(struct console *c
barrier();
lpuart32_write(old_cr, sport->port.membase + UARTCTRL);
}
/*
-@@ -1899,9 +1922,13 @@ static int lpuart_probe(struct platform_device *pdev)
+@@ -1900,13 +1923,13 @@ static int lpuart_probe(struct platform_
ret = of_alias_get_id(np, "serial");
if (ret < 0) {
- dev_err(&pdev->dev, "failed to get alias id, errno %d\n", ret);
- return ret;
+- }
+- if (ret >= ARRAY_SIZE(lpuart_ports)) {
+- dev_err(&pdev->dev, "serial%d out of range\n", ret);
+- return -EINVAL;
+ ret = find_first_zero_bit(linemap, UART_NR);
+ if (ret >= UART_NR) {
+ dev_err(&pdev->dev, "port line is full, add device failed\n");
sport->port.line = ret;
sport->lpuart32 = of_device_is_compatible(np, "fsl,ls1021a-lpuart");
-@@ -1983,6 +2010,7 @@ static int lpuart_remove(struct platform_device *pdev)
+@@ -1988,6 +2011,7 @@ static int lpuart_remove(struct platform
struct lpuart_port *sport = platform_get_drvdata(pdev);
uart_remove_one_port(&lpuart_reg, &sport->port);
clk_disable_unprepare(sport->clk);
-@@ -2067,12 +2095,10 @@ static int lpuart_resume(struct device *dev)
+@@ -2072,12 +2096,10 @@ static int lpuart_resume(struct device *
if (sport->lpuart_dma_rx_use) {
if (sport->port.irq_wake) {
}
}
---
-2.14.1
-