struct max310x_port {
struct max310x_devtype *devtype;
struct regmap *regmap;
- struct mutex mutex;
struct clk *clk;
#ifdef CONFIG_GPIOLIB
struct gpio_chip gpio;
{
struct max310x_one *one = container_of(port, struct max310x_one, port);
- if (!work_pending(&one->tx_work))
- schedule_work(&one->tx_work);
+ schedule_work(&one->tx_work);
}
static irqreturn_t max310x_port_irq(struct max310x_port *s, int portno)
return IRQ_RETVAL(handled);
}
-static void max310x_wq_proc(struct work_struct *ws)
+static void max310x_tx_proc(struct work_struct *ws)
{
struct max310x_one *one = container_of(ws, struct max310x_one, tx_work);
- struct max310x_port *s = dev_get_drvdata(one->port.dev);
- mutex_lock(&s->mutex);
max310x_handle_tx(&one->port);
- mutex_unlock(&s->mutex);
}
static unsigned int max310x_tx_empty(struct uart_port *port)
uartclk = max310x_set_ref_clk(dev, s, freq, xtal);
dev_dbg(dev, "Reference clock set to %i Hz\n", uartclk);
- mutex_init(&s->mutex);
-
for (i = 0; i < devtype->nr; i++) {
unsigned int line;
/* Clear IRQ status register */
max310x_port_read(&s->p[i].port, MAX310X_IRQSTS_REG);
/* Initialize queue for start TX */
- INIT_WORK(&s->p[i].tx_work, max310x_wq_proc);
+ INIT_WORK(&s->p[i].tx_work, max310x_tx_proc);
/* Initialize queue for changing LOOPBACK mode */
INIT_WORK(&s->p[i].md_work, max310x_md_proc);
/* Initialize queue for changing RS485 mode */
}
}
- mutex_destroy(&s->mutex);
-
out_clk:
clk_disable_unprepare(s->clk);
s->devtype->power(&s->p[i].port, 0);
}
- mutex_destroy(&s->mutex);
clk_disable_unprepare(s->clk);
return 0;