serial: Kill off NO_IRQ
We transform the offenders into a test of irq <= 0 which will be ok while
the ARM people get their platform sorted. Once that is done (or in a while
if they don't do it anyway) then we will change them all to !irq checks.
For arch specific drivers that are already using NO_IRQ = 0 we just test
against zero so we don't need to re-review them later.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/tty/hvc/hvc_beat.c b/drivers/tty/hvc/hvc_beat.c
index 5fe4631..1560d23 100644
--- a/drivers/tty/hvc/hvc_beat.c
+++ b/drivers/tty/hvc/hvc_beat.c
@@ -113,7 +113,7 @@
if (!firmware_has_feature(FW_FEATURE_BEAT))
return -ENODEV;
- hp = hvc_alloc(0, NO_IRQ, &hvc_beat_get_put_ops, 16);
+ hp = hvc_alloc(0, 0, &hvc_beat_get_put_ops, 16);
if (IS_ERR(hp))
return PTR_ERR(hp);
hvc_beat_dev = hp;
diff --git a/drivers/tty/hvc/hvc_rtas.c b/drivers/tty/hvc/hvc_rtas.c
index 61c4a61..0069bb8 100644
--- a/drivers/tty/hvc/hvc_rtas.c
+++ b/drivers/tty/hvc/hvc_rtas.c
@@ -94,7 +94,7 @@
/* Allocate an hvc_struct for the console device we instantiated
* earlier. Save off hp so that we can return it on exit */
- hp = hvc_alloc(hvc_rtas_cookie, NO_IRQ, &hvc_rtas_get_put_ops, 16);
+ hp = hvc_alloc(hvc_rtas_cookie, 0, &hvc_rtas_get_put_ops, 16);
if (IS_ERR(hp))
return PTR_ERR(hp);
diff --git a/drivers/tty/hvc/hvc_udbg.c b/drivers/tty/hvc/hvc_udbg.c
index b0957e6..4c9b13e 100644
--- a/drivers/tty/hvc/hvc_udbg.c
+++ b/drivers/tty/hvc/hvc_udbg.c
@@ -69,7 +69,7 @@
BUG_ON(hvc_udbg_dev);
- hp = hvc_alloc(0, NO_IRQ, &hvc_udbg_ops, 16);
+ hp = hvc_alloc(0, 0, &hvc_udbg_ops, 16);
if (IS_ERR(hp))
return PTR_ERR(hp);
diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 52fdf60..a1b0a75 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -176,7 +176,7 @@
xencons_irq = bind_evtchn_to_irq(xen_start_info->console.domU.evtchn);
}
if (xencons_irq < 0)
- xencons_irq = 0; /* NO_IRQ */
+ xencons_irq = 0;
else
irq_set_noprobe(xencons_irq);
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index b9040be..df7e7a0 100644
--- a/drivers/tty/hvc/hvcs.c
+++ b/drivers/tty/hvc/hvcs.c
@@ -1203,7 +1203,7 @@
{
struct hvcs_struct *hvcsd;
unsigned long flags;
- int irq = NO_IRQ;
+ int irq;
/*
* Is someone trying to close the file associated with this device after
@@ -1264,7 +1264,7 @@
struct hvcs_struct *hvcsd = tty->driver_data;
unsigned long flags;
int temp_open_count;
- int irq = NO_IRQ;
+ int irq;
spin_lock_irqsave(&hvcsd->lock, flags);
/* Preserve this so that we know how many kref refs to put */
diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c
index cdfa3e0..1b5f28b 100644
--- a/drivers/tty/hvc/hvsi.c
+++ b/drivers/tty/hvc/hvsi.c
@@ -1237,7 +1237,7 @@
hp->state = HVSI_CLOSED;
hp->vtermno = *vtermno;
hp->virq = irq_create_mapping(NULL, irq[0]);
- if (hp->virq == NO_IRQ) {
+ if (hp->virq == 0) {
printk(KERN_ERR "%s: couldn't create irq mapping for 0x%x\n",
__func__, irq[0]);
continue;
diff --git a/drivers/tty/serial/21285.c b/drivers/tty/serial/21285.c
index 1b37626..f899996 100644
--- a/drivers/tty/serial/21285.c
+++ b/drivers/tty/serial/21285.c
@@ -331,7 +331,7 @@
int ret = 0;
if (ser->type != PORT_UNKNOWN && ser->type != PORT_21285)
ret = -EINVAL;
- if (ser->irq != NO_IRQ)
+ if (ser->irq <= 0)
ret = -EINVAL;
if (ser->baud_base != port->uartclk / 16)
ret = -EINVAL;
@@ -360,7 +360,7 @@
static struct uart_port serial21285_port = {
.mapbase = 0x42000160,
.iotype = UPIO_MEM,
- .irq = NO_IRQ,
+ .irq = 0,
.fifosize = 16,
.ops = &serial21285_ops,
.flags = UPF_BOOT_AUTOCONF,
diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c
index 9f50c4e..b0eb961 100644
--- a/drivers/tty/serial/8250.c
+++ b/drivers/tty/serial/8250.c
@@ -86,13 +86,6 @@
#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
-/*
- * We default to IRQ0 for the "no irq" hack. Some
- * machine types want others as well - they're free
- * to redefine this in their header file.
- */
-#define is_real_interrupt(irq) ((irq) != 0)
-
#ifdef CONFIG_SERIAL_8250_DETECT_IRQ
#define CONFIG_SERIAL_DETECT_IRQ 1
#endif
@@ -1750,7 +1743,7 @@
* Must disable interrupts or else we risk racing with the interrupt
* based handler.
*/
- if (is_real_interrupt(up->port.irq)) {
+ if (up->port.irq) {
ier = serial_in(up, UART_IER);
serial_out(up, UART_IER, 0);
}
@@ -1775,7 +1768,7 @@
if (!(iir & UART_IIR_NO_INT))
serial8250_tx_chars(up);
- if (is_real_interrupt(up->port.irq))
+ if (up->port.irq)
serial_out(up, UART_IER, ier);
spin_unlock_irqrestore(&up->port.lock, flags);
@@ -2028,7 +2021,7 @@
serial_outp(up, UART_LCR, 0);
}
- if (is_real_interrupt(up->port.irq)) {
+ if (up->port.irq) {
unsigned char iir1;
/*
* Test for UARTs that do not reassert THRE when the
@@ -2083,7 +2076,7 @@
* hardware interrupt, we use a timer-based system. The original
* driver used to do this with IRQ0.
*/
- if (!is_real_interrupt(up->port.irq)) {
+ if (!up->port.irq) {
up->timer.data = (unsigned long)up;
mod_timer(&up->timer, jiffies + uart_poll_timeout(port));
} else {
@@ -2099,13 +2092,13 @@
spin_lock_irqsave(&up->port.lock, flags);
if (up->port.flags & UPF_FOURPORT) {
- if (!is_real_interrupt(up->port.irq))
+ if (!up->port.irq)
up->port.mctrl |= TIOCM_OUT1;
} else
/*
* Most PC uarts need OUT2 raised to enable interrupts.
*/
- if (is_real_interrupt(up->port.irq))
+ if (up->port.irq)
up->port.mctrl |= TIOCM_OUT2;
serial8250_set_mctrl(&up->port, up->port.mctrl);
@@ -2223,7 +2216,7 @@
del_timer_sync(&up->timer);
up->timer.function = serial8250_timeout;
- if (is_real_interrupt(up->port.irq))
+ if (up->port.irq)
serial_unlink_irq_chain(up);
}
diff --git a/drivers/tty/serial/m32r_sio.c b/drivers/tty/serial/m32r_sio.c
index 94a6792..e465dda 100644
--- a/drivers/tty/serial/m32r_sio.c
+++ b/drivers/tty/serial/m32r_sio.c
@@ -70,13 +70,6 @@
#define PASS_LIMIT 256
-/*
- * We default to IRQ0 for the "no irq" hack. Some
- * machine types want others as well - they're free
- * to redefine this in their header file.
- */
-#define is_real_interrupt(irq) ((irq) != 0)
-
#define BASE_BAUD 115200
/* Standard COM flags */
@@ -640,7 +633,7 @@
* hardware interrupt, we use a timer-based system. The original
* driver used to do this with IRQ0.
*/
- if (!is_real_interrupt(up->port.irq)) {
+ if (!up->port.irq) {
unsigned int timeout = up->port.timeout;
timeout = timeout > 6 ? (timeout / 2 - 2) : 1;
@@ -687,7 +680,7 @@
sio_init();
- if (!is_real_interrupt(up->port.irq))
+ if (!up->port.irq)
del_timer_sync(&up->timer);
else
serial_unlink_irq_chain(up);
diff --git a/drivers/tty/serial/mpc52xx_uart.c b/drivers/tty/serial/mpc52xx_uart.c
index 1093a88..e9a770d 100644
--- a/drivers/tty/serial/mpc52xx_uart.c
+++ b/drivers/tty/serial/mpc52xx_uart.c
@@ -507,7 +507,7 @@
psc_fifoc_irq = irq_of_parse_and_map(np, 0);
of_node_put(np);
- if (psc_fifoc_irq == NO_IRQ) {
+ if (psc_fifoc_irq == 0) {
pr_err("%s: Can't get FIFOC irq\n", __func__);
iounmap(psc_fifoc);
return -ENODEV;
@@ -1354,7 +1354,7 @@
}
psc_ops->get_irq(port, op->dev.of_node);
- if (port->irq == NO_IRQ) {
+ if (port->irq == 0) {
dev_dbg(&op->dev, "Could not get irq\n");
return -EINVAL;
}
diff --git a/drivers/tty/serial/mux.c b/drivers/tty/serial/mux.c
index 06f6aef..c61d950 100644
--- a/drivers/tty/serial/mux.c
+++ b/drivers/tty/serial/mux.c
@@ -499,7 +499,7 @@
port->membase = ioremap_nocache(port->mapbase, MUX_LINE_OFFSET);
port->iotype = UPIO_MEM;
port->type = PORT_MUX;
- port->irq = NO_IRQ;
+ port->irq = 0;
port->uartclk = 0;
port->fifosize = MUX_FIFO_SIZE;
port->ops = &mux_pops;
diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index e9c2dfe4..08ebe90 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -1506,7 +1506,7 @@
* fixed up interrupt info, but we use the device-tree directly
* here due to early probing so we need the fixup too.
*/
- if (uap->port.irq == NO_IRQ &&
+ if (uap->port.irq == 0 &&
np->parent && np->parent->parent &&
of_device_is_compatible(np->parent->parent, "gatwick")) {
/* IRQs on gatwick are offset by 64 */
diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c
index 8e916e7..5a47d1b 100644
--- a/drivers/tty/serial/sunzilog.c
+++ b/drivers/tty/serial/sunzilog.c
@@ -1397,7 +1397,7 @@
#endif
}
-static int zilog_irq = -1;
+static int zilog_irq;
static int __devinit zs_probe(struct platform_device *op)
{
@@ -1425,7 +1425,7 @@
rp = sunzilog_chip_regs[inst];
- if (zilog_irq == -1)
+ if (!zilog_irq)
zilog_irq = op->archdata.irqs[0];
up = &sunzilog_port_table[inst * 2];
@@ -1580,7 +1580,7 @@
if (err)
goto out_unregister_uart;
- if (zilog_irq != -1) {
+ if (!zilog_irq) {
struct uart_sunzilog_port *up = sunzilog_irq_chain;
err = request_irq(zilog_irq, sunzilog_interrupt, IRQF_SHARED,
"zs", sunzilog_irq_chain);
@@ -1621,7 +1621,7 @@
{
platform_driver_unregister(&zs_driver);
- if (zilog_irq != -1) {
+ if (!zilog_irq) {
struct uart_sunzilog_port *up = sunzilog_irq_chain;
/* Disable Interrupts */
@@ -1637,7 +1637,7 @@
}
free_irq(zilog_irq, sunzilog_irq_chain);
- zilog_irq = -1;
+ zilog_irq = 0;
}
if (sunzilog_reg.nr) {
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index 2ebe606..f99b0c9 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -1360,7 +1360,7 @@
}
qe_port->port.irq = irq_of_parse_and_map(np, 0);
- if (qe_port->port.irq == NO_IRQ) {
+ if (qe_port->port.irq == 0) {
dev_err(&ofdev->dev, "could not map IRQ for UCC%u\n",
qe_port->ucc_num + 1);
ret = -EINVAL;
diff --git a/drivers/tty/serial/vr41xx_siu.c b/drivers/tty/serial/vr41xx_siu.c
index 83148e7..cf0d948 100644
--- a/drivers/tty/serial/vr41xx_siu.c
+++ b/drivers/tty/serial/vr41xx_siu.c
@@ -61,7 +61,7 @@
static struct uart_port siu_uart_ports[SIU_PORTS_MAX] = {
[0 ... SIU_PORTS_MAX-1] = {
.lock = __SPIN_LOCK_UNLOCKED(siu_uart_ports->lock),
- .irq = -1,
+ .irq = 0,
},
};
@@ -171,7 +171,7 @@
{
if (port->line == 0)
return PORT_VR41XX_SIU;
- if (port->line == 1 && port->irq != -1)
+ if (port->line == 1 && port->irq)
return PORT_VR41XX_DSIU;
return PORT_UNKNOWN;
