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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2016-11-14 12:26:51 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-11-16 10:57:26 +0100 |
| commit | 7d4e00c6253bc57b1ac0764ca76d4a8642354b54 (patch) | |
| tree | eb903f68aeb01ab56c69aa40a974d30ec689387e /drivers | |
| parent | af6f9d6883ac95d14271b4613e5813f2938dd4d4 (diff) | |
| download | op-kernel-dev-7d4e00c6253bc57b1ac0764ca76d4a8642354b54.zip op-kernel-dev-7d4e00c6253bc57b1ac0764ca76d4a8642354b54.tar.gz | |
serial: 8250_port: export serial8250_rpm_{get|put}_tx()
The following fix of runtime PM use in DMA mode requires at least
serial8250_rpm_put_tx() to be available. Export both calls.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serial/8250/8250.h | 5 | ||||
| -rw-r--r-- | drivers/tty/serial/8250/8250_port.c | 6 |
2 files changed, 9 insertions, 2 deletions
diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8250.h index a697a85..124e6e6 100644 --- a/drivers/tty/serial/8250/8250.h +++ b/drivers/tty/serial/8250/8250.h @@ -129,8 +129,13 @@ 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); + +void serial8250_rpm_get_tx(struct uart_8250_port *p); +void serial8250_rpm_put_tx(struct uart_8250_port *p); + int serial8250_em485_init(struct uart_8250_port *p); void serial8250_em485_destroy(struct uart_8250_port *p); diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c index 1731b98..4a32603 100644 --- a/drivers/tty/serial/8250/8250_port.c +++ b/drivers/tty/serial/8250/8250_port.c @@ -636,7 +636,7 @@ EXPORT_SYMBOL_GPL(serial8250_em485_destroy); * once and disable_runtime_pm_tx() will still disable RPM because the fifo is * empty and the HW can idle again. */ -static void serial8250_rpm_get_tx(struct uart_8250_port *p) +void serial8250_rpm_get_tx(struct uart_8250_port *p) { unsigned char rpm_active; @@ -648,8 +648,9 @@ static void serial8250_rpm_get_tx(struct uart_8250_port *p) return; pm_runtime_get_sync(p->port.dev); } +EXPORT_SYMBOL_GPL(serial8250_rpm_get_tx); -static void serial8250_rpm_put_tx(struct uart_8250_port *p) +void serial8250_rpm_put_tx(struct uart_8250_port *p) { unsigned char rpm_active; @@ -662,6 +663,7 @@ static void serial8250_rpm_put_tx(struct uart_8250_port *p) pm_runtime_mark_last_busy(p->port.dev); pm_runtime_put_autosuspend(p->port.dev); } +EXPORT_SYMBOL_GPL(serial8250_rpm_put_tx); /* * IER sleep support. UARTs which have EFRs need the "extended |
