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authorTony Lindgren <tony@atomide.com>2012-09-23 19:31:35 -0700
committerTony Lindgren <tony@atomide.com>2012-09-23 19:31:35 -0700
commit9cd68fa707cf6372f33eb51a5719dd7626efe5f6 (patch)
tree66cde27bd288e011a6e4cff87d342666399a1266 /drivers/tty/hvc/hvc_console.c
parent5698bd757d55b1bb87edd1a9744ab09c142abfc2 (diff)
parent76a5d9bfc42d60e9a672e0cae776157a60970f4e (diff)
Merge tag 'omap-devel-b-c-2-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into devel-late
OMAP patches intended for the 3.7 merge window: - Runtime PM conversions for the GPMC and RNG IP blocks - Preparation patches for the OMAP common clock framework conversion - clkdev alias additions required by other drivers - Performance Monitoring Unit (PMU) support for OMAP2, 3, and non-4430 OMAP4 - OMAP hwmod code and data improvements - Preparation patches for the IOMMU runtime PM conversion - Preparation patches for OMAP4 full-chip retention support Based on a merge of v3.6-rc6, the omap-cleanup-b-for-3.7 tag (7852ec0536ca39cefffc6301dc77f8ae55592926),the cleanup-fixes-for-v3.7 tag (de6ca33a96a6bf61fcb91d3d399703e19ead9d1e), and the omap-devel-am33xx-for-v3.7 tag (11964f53eb4d9ce59a058be9999d9cfcb1ced878), due to dependencies. These patches have been tested for meaningful warnings from checkpatch, sparse, smatch, and cppcheck. Basic build, boot[1], and PM test logs are available here: http://www.pwsan.com/omap/testlogs/hwmod_prcm_clock_a_3.7/20120923173830/ ... 1. Note that the N800 boot fails due to a known issue present in the base commit: http://www.spinics.net/lists/arm-kernel/msg196034.html
Diffstat (limited to 'drivers/tty/hvc/hvc_console.c')
-rw-r--r--drivers/tty/hvc/hvc_console.c31
1 files changed, 25 insertions, 6 deletions
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index 2d691eb7c40..7f80f15681c 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -299,20 +299,33 @@ static void hvc_unthrottle(struct tty_struct *tty)
hvc_kick();
}
+static int hvc_install(struct tty_driver *driver, struct tty_struct *tty)
+{
+ struct hvc_struct *hp;
+ int rc;
+
+ /* Auto increments kref reference if found. */
+ if (!(hp = hvc_get_by_index(tty->index)))
+ return -ENODEV;
+
+ tty->driver_data = hp;
+
+ rc = tty_port_install(&hp->port, driver, tty);
+ if (rc)
+ tty_port_put(&hp->port);
+ return rc;
+}
+
/*
* The TTY interface won't be used until after the vio layer has exposed the vty
* adapter to the kernel.
*/
static int hvc_open(struct tty_struct *tty, struct file * filp)
{
- struct hvc_struct *hp;
+ struct hvc_struct *hp = tty->driver_data;
unsigned long flags;
int rc = 0;
- /* Auto increments kref reference if found. */
- if (!(hp = hvc_get_by_index(tty->index)))
- return -ENODEV;
-
spin_lock_irqsave(&hp->port.lock, flags);
/* Check and then increment for fast path open. */
if (hp->port.count++ > 0) {
@@ -322,7 +335,6 @@ static int hvc_open(struct tty_struct *tty, struct file * filp)
} /* else count == 0 */
spin_unlock_irqrestore(&hp->port.lock, flags);
- tty->driver_data = hp;
tty_port_tty_set(&hp->port, tty);
if (hp->ops->notifier_add)
@@ -389,6 +401,11 @@ static void hvc_close(struct tty_struct *tty, struct file * filp)
hp->vtermno, hp->port.count);
spin_unlock_irqrestore(&hp->port.lock, flags);
}
+}
+
+static void hvc_cleanup(struct tty_struct *tty)
+{
+ struct hvc_struct *hp = tty->driver_data;
tty_port_put(&hp->port);
}
@@ -792,8 +809,10 @@ static void hvc_poll_put_char(struct tty_driver *driver, int line, char ch)
#endif
static const struct tty_operations hvc_ops = {
+ .install = hvc_install,
.open = hvc_open,
.close = hvc_close,
+ .cleanup = hvc_cleanup,
.write = hvc_write,
.hangup = hvc_hangup,
.unthrottle = hvc_unthrottle,