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| author | Olof Johansson <olof@lixom.net> | 2012-09-20 21:16:30 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-09-20 21:16:30 -0700 |
| commit | b74aae9a2074e1caa2e40bf119f3a633f77c94e4 (patch) | |
| tree | ba465514cff017a3213e65556674c68be5db29f6 /drivers/tty/serial/pxa.c | |
| parent | 5698bd757d55b1bb87edd1a9744ab09c142abfc2 (diff) | |
| parent | b97ba3ab4e8ec88164a47c98c91955e90ecd7c6a (diff) | |
| download | linux-b74aae9a2074e1caa2e40bf119f3a633f77c94e4.tar.gz linux-b74aae9a2074e1caa2e40bf119f3a633f77c94e4.tar.bz2 linux-b74aae9a2074e1caa2e40bf119f3a633f77c94e4.zip | |
Merge branch 'next/cleanup' into next/multiplatform
* next/cleanup: (358 commits)
ARM: tegra: harmony: fix ldo7 regulator-name
ARM: OMAP2+: Make omap4-keypad.h local
ARM: OMAP2+: Make l4_3xxx.h local
ARM: OMAP2+: Make l4_2xxx.h local
ARM: OMAP2+: Make l3_3xxx.h local
ARM: OMAP2+: Make l3_2xxx.h local
ARM: OMAP1: Move irda.h from plat to mach
ARM: OMAP2+: Make hdq1w.h local
ARM: OMAP2+: Make gpmc-smsc911x.h local
ARM: OMAP2+: Make gpmc-smc91x.h local
ARM: OMAP1: Move flash.h from plat to mach
ARM: OMAP2+: Make debug-devices.h local
ARM: OMAP1: Move board-voiceblue.h from plat to mach
ARM: OMAP1: Move board-sx1.h from plat to mach
ARM: OMAP2+: Make omap-wakeupgen.h local
ARM: OMAP2+: Make omap-secure.h local
ARM: OMAP2+: Make ctrl_module_wkup_44xx.h local
ARM: OMAP2+: Make ctrl_module_pad_wkup_44xx.h local
ARM: OMAP2+: Make ctrl_module_pad_core_44xx.h local
ARM: OMAP2+: Make ctrl_module_core_44xx.h local
...
Diffstat (limited to 'drivers/tty/serial/pxa.c')
| -rw-r--r-- | drivers/tty/serial/pxa.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c index 5847a4b855f7..9033fc6e0e4e 100644 --- a/drivers/tty/serial/pxa.c +++ b/drivers/tty/serial/pxa.c @@ -670,9 +670,19 @@ serial_pxa_console_write(struct console *co, const char *s, unsigned int count) { struct uart_pxa_port *up = serial_pxa_ports[co->index]; unsigned int ier; + unsigned long flags; + int locked = 1; clk_prepare_enable(up->clk); + local_irq_save(flags); + if (up->port.sysrq) + locked = 0; + else if (oops_in_progress) + locked = spin_trylock(&up->port.lock); + else + spin_lock(&up->port.lock); + /* * First save the IER then disable the interrupts */ @@ -688,6 +698,10 @@ serial_pxa_console_write(struct console *co, const char *s, unsigned int count) wait_for_xmitr(up); serial_out(up, UART_IER, ier); + if (locked) + spin_unlock(&up->port.lock); + local_irq_restore(flags); + clk_disable_unprepare(up->clk); } |