diff options
author | Tony Lindgren <tony@atomide.com> | 2012-09-23 19:31:35 -0700 |
---|---|---|
committer | Tony Lindgren <tony@atomide.com> | 2012-09-23 19:31:35 -0700 |
commit | 9cd68fa707cf6372f33eb51a5719dd7626efe5f6 (patch) | |
tree | 66cde27bd288e011a6e4cff87d342666399a1266 /drivers/tty/hvc/hvc_console.c | |
parent | 5698bd757d55b1bb87edd1a9744ab09c142abfc2 (diff) | |
parent | 76a5d9bfc42d60e9a672e0cae776157a60970f4e (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.c | 31 |
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, |