[PATCH] TTY layer buffering revamp

[pandora-kernel.git] / drivers / serial / sa1100.c

diff --git a/drivers/serial/sa1100.c b/drivers/serial/sa1100.c
index ed618cc..1bd9316 100644 (file)
--- a/drivers/serial/sa1100.c
+++ b/drivers/serial/sa1100.c
@@ -156,19 +156,16 @@ static void sa1100_stop_tx(struct uart_port *port)
 }
 
 /*
- * interrupts may not be disabled on entry
+ * port locked and interrupts disabled
  */
 static void sa1100_start_tx(struct uart_port *port)
 {
        struct sa1100_port *sport = (struct sa1100_port *)port;
-       unsigned long flags;
        u32 utcr3;
 
-       spin_lock_irqsave(&sport->port.lock, flags);
        utcr3 = UART_GET_UTCR3(sport);
        sport->port.read_status_mask |= UTSR0_TO_SM(UTSR0_TFS);
        UART_PUT_UTCR3(sport, utcr3 | UTCR3_TIE);
-       spin_unlock_irqrestore(&sport->port.lock, flags);
 }
 
 /*
@@ -204,8 +201,6 @@ sa1100_rx_chars(struct sa1100_port *sport, struct pt_regs *regs)
        while (status & UTSR1_TO_SM(UTSR1_RNE)) {
                ch = UART_GET_CHAR(sport);
 
-               if (tty->flip.count >= TTY_FLIPBUF_SIZE)
-                       goto ignore_char;
                sport->port.icount.rx++;
 
                flg = TTY_NORMAL;
@@ -834,9 +829,9 @@ static struct uart_driver sa1100_reg = {
        .cons                   = SA1100_CONSOLE,
 };
 
-static int sa1100_serial_suspend(struct device *_dev, pm_message_t state)
+static int sa1100_serial_suspend(struct platform_device *dev, pm_message_t state)
 {
-       struct sa1100_port *sport = dev_get_drvdata(_dev);
+       struct sa1100_port *sport = platform_get_drvdata(dev);
 
        if (sport)
                uart_suspend_port(&sa1100_reg, &sport->port);
@@ -844,9 +839,9 @@ static int sa1100_serial_suspend(struct device *_dev, pm_message_t state)
        return 0;
 }
 
-static int sa1100_serial_resume(struct device *_dev)
+static int sa1100_serial_resume(struct platform_device *dev)
 {
-       struct sa1100_port *sport = dev_get_drvdata(_dev);
+       struct sa1100_port *sport = platform_get_drvdata(dev);
 
        if (sport)
                uart_resume_port(&sa1100_reg, &sport->port);
@@ -854,9 +849,8 @@ static int sa1100_serial_resume(struct device *_dev)
        return 0;
 }
 
-static int sa1100_serial_probe(struct device *_dev)
+static int sa1100_serial_probe(struct platform_device *dev)
 {
-       struct platform_device *dev = to_platform_device(_dev);
        struct resource *res = dev->resource;
        int i;
 
@@ -869,9 +863,9 @@ static int sa1100_serial_probe(struct device *_dev)
                        if (sa1100_ports[i].port.mapbase != res->start)
                                continue;
 
-                       sa1100_ports[i].port.dev = _dev;
+                       sa1100_ports[i].port.dev = &dev->dev;
                        uart_add_one_port(&sa1100_reg, &sa1100_ports[i].port);
-                       dev_set_drvdata(_dev, &sa1100_ports[i]);
+                       platform_set_drvdata(dev, &sa1100_ports[i]);
                        break;
                }
        }
@@ -879,11 +873,11 @@ static int sa1100_serial_probe(struct device *_dev)
        return 0;
 }
 
-static int sa1100_serial_remove(struct device *_dev)
+static int sa1100_serial_remove(struct platform_device *pdev)
 {
-       struct sa1100_port *sport = dev_get_drvdata(_dev);
+       struct sa1100_port *sport = platform_get_drvdata(pdev);
 
-       dev_set_drvdata(_dev, NULL);
+       platform_set_drvdata(pdev, NULL);
 
        if (sport)
                uart_remove_one_port(&sa1100_reg, &sport->port);
@@ -891,13 +885,14 @@ static int sa1100_serial_remove(struct device *_dev)
        return 0;
 }
 
-static struct device_driver sa11x0_serial_driver = {
-       .name           = "sa11x0-uart",
-       .bus            = &platform_bus_type,
+static struct platform_driver sa11x0_serial_driver = {
        .probe          = sa1100_serial_probe,
        .remove         = sa1100_serial_remove,
        .suspend        = sa1100_serial_suspend,
        .resume         = sa1100_serial_resume,
+       .driver         = {
+               .name   = "sa11x0-uart",
+       },
 };
 
 static int __init sa1100_serial_init(void)
@@ -910,7 +905,7 @@ static int __init sa1100_serial_init(void)
 
        ret = uart_register_driver(&sa1100_reg);
        if (ret == 0) {
-               ret = driver_register(&sa11x0_serial_driver);
+               ret = platform_driver_register(&sa11x0_serial_driver);
                if (ret)
                        uart_unregister_driver(&sa1100_reg);
        }
@@ -919,7 +914,7 @@ static int __init sa1100_serial_init(void)
 
 static void __exit sa1100_serial_exit(void)
 {
-       driver_unregister(&sa11x0_serial_driver);
+       platform_driver_unregister(&sa11x0_serial_driver);
        uart_unregister_driver(&sa1100_reg);
 }