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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2014-09-29 22:06:48 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-06 06:13:34 +0300 |
| commit | 77285243a68fec6852041d1db0d5587684b9dc48 (patch) | |
| tree | 4359f53e39be746b0d2d5306a6a8e0734efa2a34 /drivers/tty/serial/8250/8250.h | |
| parent | 0e31c8d173ab105f161f26d222eae6cad2aebf5f (diff) | |
| download | linux-77285243a68fec6852041d1db0d5587684b9dc48.tar.xz | |
tty: serial: 8250: omap: add custom irq handling
We have (or will have) custom DMA callbacks in the omap driver due to
the different behaviour in the RX and TX case. To make this work
we need a few changes in the IRQ handler to invoke the rx_handler again
after the "manual" mode or retry the tx_handler again before falling
back to the manual mode.
Heikki didn't want to see the extra hacks in the generic / default irq
handler and Peter wasn't too happy about an OMAP-only IRQ handler. The
way I planned it is to use this extra IRQ routine only in DMA case. If
Peter dislike this approach then I hope Heikki doesn't block changes in
the default IRQ handler :)
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250/8250.h')
| -rw-r--r-- | drivers/tty/serial/8250/8250.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8250.h index 0dc1cb6b2706..458ad28338fe 100644 --- a/drivers/tty/serial/8250/8250.h +++ b/drivers/tty/serial/8250/8250.h @@ -119,6 +119,8 @@ static inline void serial_dl_write(struct uart_8250_port *up, int value) } struct uart_8250_port *serial8250_get_port(int line); +void serial8250_rpm_get(struct uart_8250_port *p); +void serial8250_rpm_put(struct uart_8250_port *p); #if defined(__alpha__) && !defined(CONFIG_PCI) /* |