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-rw-r--r--drivers/tty/hvc/hvc_iucv.c2
-rw-r--r--drivers/tty/hvc/hvc_tile.c3
-rw-r--r--drivers/tty/hvc/hvc_xen.c2
-rw-r--r--drivers/tty/metag_da.c20
-rw-r--r--drivers/tty/serial/8250/8250_omap.c58
-rw-r--r--drivers/tty/serial/omap-serial.c35
-rw-r--r--drivers/tty/sysrq.c2
7 files changed, 14 insertions, 108 deletions
diff --git a/drivers/tty/hvc/hvc_iucv.c b/drivers/tty/hvc/hvc_iucv.c
index f78a87b07872..bb809cf36617 100644
--- a/drivers/tty/hvc/hvc_iucv.c
+++ b/drivers/tty/hvc/hvc_iucv.c
@@ -1345,7 +1345,7 @@ static int param_get_vmidfilter(char *buffer, const struct kernel_param *kp)
#define param_check_vmidfilter(name, p) __param_check(name, p, void)
-static struct kernel_param_ops param_ops_vmidfilter = {
+static const struct kernel_param_ops param_ops_vmidfilter = {
.set = param_set_vmidfilter,
.get = param_get_vmidfilter,
};
diff --git a/drivers/tty/hvc/hvc_tile.c b/drivers/tty/hvc/hvc_tile.c
index 3f6cd3102db5..9da1e842bbe9 100644
--- a/drivers/tty/hvc/hvc_tile.c
+++ b/drivers/tty/hvc/hvc_tile.c
@@ -51,7 +51,8 @@ int tile_console_write(const char *buf, int count)
_SIM_CONTROL_OPERATOR_BITS));
return 0;
} else {
- return hv_console_write((HV_VirtAddr)buf, count);
+ /* Translate 0 bytes written to EAGAIN for hvc_console_print. */
+ return hv_console_write((HV_VirtAddr)buf, count) ?: -EAGAIN;
}
}
diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 7a3d146a5f0e..a9d837f83ce8 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -302,7 +302,7 @@ static int xen_initial_domain_console_init(void)
static void xen_console_update_evtchn(struct xencons_info *info)
{
if (xen_hvm_domain()) {
- uint64_t v;
+ uint64_t v = 0;
int err;
err = hvm_get_parameter(HVM_PARAM_CONSOLE_EVTCHN, &v);
diff --git a/drivers/tty/metag_da.c b/drivers/tty/metag_da.c
index 3774600741d8..9325262289f9 100644
--- a/drivers/tty/metag_da.c
+++ b/drivers/tty/metag_da.c
@@ -640,25 +640,7 @@ err_destroy_ports:
put_tty_driver(channel_driver);
return ret;
}
-
-static void dashtty_exit(void)
-{
- int nport;
- struct dashtty_port *dport;
-
- del_timer_sync(&put_timer);
- kthread_stop(dashtty_thread);
- del_timer_sync(&poll_timer);
- tty_unregister_driver(channel_driver);
- for (nport = 0; nport < NUM_TTY_CHANNELS; nport++) {
- dport = &dashtty_ports[nport];
- tty_port_destroy(&dport->port);
- }
- put_tty_driver(channel_driver);
-}
-
-module_init(dashtty_init);
-module_exit(dashtty_exit);
+device_initcall(dashtty_init);
#ifdef CONFIG_DA_CONSOLE
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 978204333c94..d75a66c72750 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -22,6 +22,7 @@
#include <linux/pm_runtime.h>
#include <linux/console.h>
#include <linux/pm_qos.h>
+#include <linux/pm_wakeirq.h>
#include <linux/dma-mapping.h>
#include "8250.h"
@@ -552,17 +553,6 @@ static void omap8250_uart_qos_work(struct work_struct *work)
pm_qos_update_request(&priv->pm_qos_request, priv->latency);
}
-static irqreturn_t omap_wake_irq(int irq, void *dev_id)
-{
- struct uart_port *port = dev_id;
- int ret;
-
- ret = port->handle_irq(port);
- if (ret)
- return IRQ_HANDLED;
- return IRQ_NONE;
-}
-
#ifdef CONFIG_SERIAL_8250_DMA
static int omap_8250_dma_handle_irq(struct uart_port *port);
#endif
@@ -596,11 +586,9 @@ static int omap_8250_startup(struct uart_port *port)
int ret;
if (priv->wakeirq) {
- ret = request_irq(priv->wakeirq, omap_wake_irq,
- port->irqflags, "uart wakeup irq", port);
+ ret = dev_pm_set_dedicated_wake_irq(port->dev, priv->wakeirq);
if (ret)
return ret;
- disable_irq(priv->wakeirq);
}
pm_runtime_get_sync(port->dev);
@@ -649,8 +637,7 @@ static int omap_8250_startup(struct uart_port *port)
err:
pm_runtime_mark_last_busy(port->dev);
pm_runtime_put_autosuspend(port->dev);
- if (priv->wakeirq)
- free_irq(priv->wakeirq, port);
+ dev_pm_clear_wake_irq(port->dev);
return ret;
}
@@ -682,10 +669,8 @@ static void omap_8250_shutdown(struct uart_port *port)
pm_runtime_mark_last_busy(port->dev);
pm_runtime_put_autosuspend(port->dev);
-
free_irq(port->irq, port);
- if (priv->wakeirq)
- free_irq(priv->wakeirq, port);
+ dev_pm_clear_wake_irq(port->dev);
}
static void omap_8250_throttle(struct uart_port *port)
@@ -1226,31 +1211,6 @@ static int omap8250_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM
-
-static inline void omap8250_enable_wakeirq(struct omap8250_priv *priv,
- bool enable)
-{
- if (!priv->wakeirq)
- return;
-
- if (enable)
- enable_irq(priv->wakeirq);
- else
- disable_irq_nosync(priv->wakeirq);
-}
-
-static void omap8250_enable_wakeup(struct omap8250_priv *priv,
- bool enable)
-{
- if (enable == priv->wakeups_enabled)
- return;
-
- omap8250_enable_wakeirq(priv, enable);
- priv->wakeups_enabled = enable;
-}
-#endif
-
#ifdef CONFIG_PM_SLEEP
static int omap8250_prepare(struct device *dev)
{
@@ -1277,11 +1237,6 @@ static int omap8250_suspend(struct device *dev)
serial8250_suspend_port(priv->line);
flush_work(&priv->qos_work);
-
- if (device_may_wakeup(dev))
- omap8250_enable_wakeup(priv, true);
- else
- omap8250_enable_wakeup(priv, false);
return 0;
}
@@ -1289,9 +1244,6 @@ static int omap8250_resume(struct device *dev)
{
struct omap8250_priv *priv = dev_get_drvdata(dev);
- if (device_may_wakeup(dev))
- omap8250_enable_wakeup(priv, false);
-
serial8250_resume_port(priv->line);
return 0;
}
@@ -1333,7 +1285,6 @@ static int omap8250_runtime_suspend(struct device *dev)
return -EBUSY;
}
- omap8250_enable_wakeup(priv, true);
if (up->dma)
omap_8250_rx_dma(up, UART_IIR_RX_TIMEOUT);
@@ -1354,7 +1305,6 @@ static int omap8250_runtime_resume(struct device *dev)
return 0;
up = serial8250_get_port(priv->line);
- omap8250_enable_wakeup(priv, false);
loss_cntx = omap8250_lost_context(up);
if (loss_cntx)
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 7f49172ccd86..7a2172b5e93c 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -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);
}
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 2847108cc8dd..b5b427888b24 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -988,7 +988,7 @@ static int sysrq_reset_seq_param_set(const char *buffer,
return 0;
}
-static struct kernel_param_ops param_ops_sysrq_reset_seq = {
+static const struct kernel_param_ops param_ops_sysrq_reset_seq = {
.get = param_get_ushort,
.set = sysrq_reset_seq_param_set,
};
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