diff options
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/tty/hvc/hvcs.c | 2 | ||||
| -rw-r--r-- | drivers/tty/serial/Kconfig | 3 | ||||
| -rw-r--r-- | drivers/tty/serial/sa1100.c | 46 | ||||
| -rw-r--r-- | drivers/tty/serial/ucc_uart.c | 2 | ||||
| -rw-r--r-- | drivers/tty/tty_ldisc.c | 6 |
6 files changed, 51 insertions, 14 deletions
diff --git a/drivers/tty/Kconfig b/drivers/tty/Kconfig index 0e3e4dacbc12..c7623f99ac0f 100644 --- a/drivers/tty/Kconfig +++ b/drivers/tty/Kconfig @@ -93,7 +93,7 @@ config VT_HW_CONSOLE_BINDING select the console driver that will serve as the backend for the virtual terminals. - See <file:Documentation/console/console.txt> for more + See <file:Documentation/driver-api/console.rst> for more information. For framebuffer console users, please refer to <file:Documentation/fb/fbcon.rst>. @@ -175,7 +175,7 @@ config ROCKETPORT This driver supports Comtrol RocketPort and RocketModem PCI boards. These boards provide 2, 4, 8, 16, or 32 high-speed serial ports or modems. For information about the RocketPort/RocketModem boards - and this driver read <file:Documentation/serial/rocket.rst>. + and this driver read <file:Documentation/driver-api/serial/rocket.rst>. To compile this driver as a module, choose M here: the module will be called rocket. @@ -193,7 +193,7 @@ config CYCLADES your Linux box, for instance in order to become a dial-in server. For information about the Cyclades-Z card, read - <file:Documentation/serial/cyclades_z.rst>. + <file:Documentation/driver-api/serial/cyclades_z.rst>. To compile this driver as a module, choose M here: the module will be called cyclades. diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c index cb4db1b3ca3c..5fb214e67d73 100644 --- a/drivers/tty/hvc/hvcs.c +++ b/drivers/tty/hvc/hvcs.c @@ -47,7 +47,7 @@ * using the 2.6 Linux kernel kref construct. * * For direction on installation and usage of this driver please reference - * Documentation/powerpc/hvcs.txt. + * Documentation/powerpc/hvcs.rst. */ #include <linux/device.h> diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig index b416c7b33f49..fd385c8c53a5 100644 --- a/drivers/tty/serial/Kconfig +++ b/drivers/tty/serial/Kconfig @@ -497,10 +497,11 @@ config SERIAL_SA1100 bool "SA1100 serial port support" depends on ARCH_SA1100 select SERIAL_CORE + select SERIAL_MCTRL_GPIO if GPIOLIB help If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you can enable its onboard serial port by enabling this option. - Please read <file:Documentation/arm/SA1100/serial_UART> for further + Please read <file:Documentation/arm/sa1100/serial_uart.rst> for further info. config SERIAL_SA1100_CONSOLE diff --git a/drivers/tty/serial/sa1100.c b/drivers/tty/serial/sa1100.c index a399772be3fc..8e618129e65c 100644 --- a/drivers/tty/serial/sa1100.c +++ b/drivers/tty/serial/sa1100.c @@ -28,6 +28,8 @@ #include <mach/hardware.h> #include <mach/irqs.h> +#include "serial_mctrl_gpio.h" + /* We've been assigned a range on the "Low-density serial ports" major */ #define SERIAL_SA1100_MAJOR 204 #define MINOR_START 5 @@ -77,6 +79,7 @@ struct sa1100_port { struct uart_port port; struct timer_list timer; unsigned int old_status; + struct mctrl_gpios *gpios; }; /* @@ -174,6 +177,8 @@ static void sa1100_enable_ms(struct uart_port *port) container_of(port, struct sa1100_port, port); mod_timer(&sport->timer, jiffies); + + mctrl_gpio_enable_ms(sport->gpios); } static void @@ -322,11 +327,21 @@ static unsigned int sa1100_tx_empty(struct uart_port *port) static unsigned int sa1100_get_mctrl(struct uart_port *port) { - return TIOCM_CTS | TIOCM_DSR | TIOCM_CAR; + struct sa1100_port *sport = + container_of(port, struct sa1100_port, port); + int ret = TIOCM_CTS | TIOCM_DSR | TIOCM_CAR; + + mctrl_gpio_get(sport->gpios, &ret); + + return ret; } static void sa1100_set_mctrl(struct uart_port *port, unsigned int mctrl) { + struct sa1100_port *sport = + container_of(port, struct sa1100_port, port); + + mctrl_gpio_set(sport->gpios, mctrl); } /* @@ -842,6 +857,31 @@ static int sa1100_serial_resume(struct platform_device *dev) return 0; } +static int sa1100_serial_add_one_port(struct sa1100_port *sport, struct platform_device *dev) +{ + sport->port.dev = &dev->dev; + + // mctrl_gpio_init() requires that the GPIO driver supports interrupts, + // but we need to support GPIO drivers for hardware that has no such + // interrupts. Use mctrl_gpio_init_noauto() instead. + sport->gpios = mctrl_gpio_init_noauto(sport->port.dev, 0); + if (IS_ERR(sport->gpios)) { + int err = PTR_ERR(sport->gpios); + + dev_err(sport->port.dev, "failed to get mctrl gpios: %d\n", + err); + + if (err == -EPROBE_DEFER) + return err; + + sport->gpios = NULL; + } + + platform_set_drvdata(dev, sport); + + return uart_add_one_port(&sa1100_reg, &sport->port); +} + static int sa1100_serial_probe(struct platform_device *dev) { struct resource *res = dev->resource; @@ -856,9 +896,7 @@ static int sa1100_serial_probe(struct platform_device *dev) if (sa1100_ports[i].port.mapbase != res->start) continue; - sa1100_ports[i].port.dev = &dev->dev; - uart_add_one_port(&sa1100_reg, &sa1100_ports[i].port); - platform_set_drvdata(dev, &sa1100_ports[i]); + sa1100_serial_add_one_port(&sa1100_ports[i], dev); break; } } diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c index 6e3c66ab0e62..a0555ae2b1ef 100644 --- a/drivers/tty/serial/ucc_uart.c +++ b/drivers/tty/serial/ucc_uart.c @@ -1081,7 +1081,7 @@ static int qe_uart_verify_port(struct uart_port *port, } /* UART operations * - * Details on these functions can be found in Documentation/serial/driver.rst + * Details on these functions can be found in Documentation/driver-api/serial/driver.rst */ static const struct uart_ops qe_uart_pops = { .tx_empty = qe_uart_tx_empty, diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c index fde8d4073e74..4c49f53afa3e 100644 --- a/drivers/tty/tty_ldisc.c +++ b/drivers/tty/tty_ldisc.c @@ -855,8 +855,6 @@ void tty_ldisc_deinit(struct tty_struct *tty) tty->ldisc = NULL; } -static int zero; -static int one = 1; static struct ctl_table tty_table[] = { { .procname = "ldisc_autoload", @@ -864,8 +862,8 @@ static struct ctl_table tty_table[] = { .maxlen = sizeof(tty_ldisc_autoload), .mode = 0644, .proc_handler = proc_dointvec, - .extra1 = &zero, - .extra2 = &one, + .extra1 = SYSCTL_ZERO, + .extra2 = SYSCTL_ONE, }, { } }; |
