[PATCH v2 4/5] tty/serial: at91: set ops in property init each time
From: Leilei Zhao <hidden>
Date: 2015-02-27 08:11:39
Also in:
linux-serial, lkml
Subsystem:
microchip at91 serial driver, the rest, tty layer and serial drivers · Maintainers:
Richard Genoud, Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
The property in device tree will be reading each time when tty is opened, so the ops of serial port should be set after that instead of setting once in probe. Otherwise, the ops of serial port is inconsistent with the state of serial work manner. For example, the atmel serial driver can't work when switching to PIO mode due to DMA channel is not available. Signed-off-by: Leilei Zhao <redacted> Acked-by: Nicolas Ferre <redacted> --- drivers/tty/serial/atmel_serial.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 2667656..777c196 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c@@ -1759,6 +1759,7 @@ static int atmel_startup(struct uart_port *port) * Initialize DMA (if necessary) */ atmel_init_property(atmel_port, pdev); + atmel_set_ops(port); if (atmel_port->prepare_rx) { retval = atmel_port->prepare_rx(port);
--
1.7.9.5