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serial: omap: Switch wake-up interrupt to generic wakeirq 

We can now use generic wakeirq handling and remove the custom handling
for the wake-up interrupts.

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
hifive-unleashed-5.1
Tony Lindgren 2015-06-09 23:35:00 -07:00
parent 00fda1682e
commit ee83bd3b64
1 changed files with 4 additions and 31 deletions
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35
drivers/tty/serial/omap-serial.c
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@ -38,6 +38,7 @@
#include <linux/serial_core.h>
#include <linux/irq.h>
#include <linux/pm_runtime.h>
#include <linux/pm_wakeirq.h>
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/gpio.h>
@ -160,7 +161,6 @@ struct uart_omap_port {
unsigned long port_activity;
int context_loss_cnt;
u32 errata;
u8 wakeups_enabled;
u32 features;
int rts_gpio;
@ -209,28 +209,11 @@ static int serial_omap_get_context_loss_count(struct uart_omap_port *up)
return pdata->get_context_loss_count(up->dev);
}
static inline void serial_omap_enable_wakeirq(struct uart_omap_port *up,
bool enable)
{
if (!up->wakeirq)
return;
if (enable)
enable_irq(up->wakeirq);
else
disable_irq_nosync(up->wakeirq);
}
/* REVISIT: Remove this when omap3 boots in device tree only mode */
static void serial_omap_enable_wakeup(struct uart_omap_port *up, bool enable)
{
struct omap_uart_port_info *pdata = dev_get_platdata(up->dev);
if (enable == up->wakeups_enabled)
return;
serial_omap_enable_wakeirq(up, enable);
up->wakeups_enabled = enable;
if (!pdata || !pdata->enable_wakeup)
return;
@ -750,13 +733,11 @@ static int serial_omap_startup(struct uart_port *port)
/* Optional wake-up IRQ */
if (up->wakeirq) {
retval = request_irq(up->wakeirq, serial_omap_irq,
up->port.irqflags, up->name, up);
retval = dev_pm_set_dedicated_wake_irq(up->dev, up->wakeirq);
if (retval) {
free_irq(up->port.irq, up);
return retval;
}
disable_irq(up->wakeirq);
}
dev_dbg(up->port.dev, "serial_omap_startup+%d\n", up->port.line);
@ -845,8 +826,7 @@ static void serial_omap_shutdown(struct uart_port *port)
pm_runtime_mark_last_busy(up->dev);
pm_runtime_put_autosuspend(up->dev);
free_irq(up->port.irq, up);
if (up->wakeirq)
free_irq(up->wakeirq, up);
dev_pm_clear_wake_irq(up->dev);
}
static void serial_omap_uart_qos_work(struct work_struct *work)
@ -1139,13 +1119,6 @@ serial_omap_pm(struct uart_port *port, unsigned int state,
serial_out(up, UART_EFR, efr);
serial_out(up, UART_LCR, 0);
if (!device_may_wakeup(up->dev)) {
if (!state)
pm_runtime_forbid(up->dev);
else
pm_runtime_allow(up->dev);
}
pm_runtime_mark_last_busy(up->dev);
pm_runtime_put_autosuspend(up->dev);
}