greybus: uart: Latch modem control signals for tciomget

Latch signals coming from UART module for
- GB_UART_CTRL_DCD
- GB_UART_CTRL_DSR
- GB_UART_CTRL_RI

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c
index 20928702a5b2d0359f82bfa141544f4bacb8cba5..3b06cd46694b82967d8296e3459cb5ddf905fdaa 100644 (file)
--- a/drivers/staging/greybus/uart.c
+++ b/drivers/staging/greybus/uart.c
@@ -102,7 +102,7 @@ static int gb_uart_request_recv(u8 type, struct gb_operation *op)
                break;
        case GB_UART_TYPE_SERIAL_STATE:
                serial_state = request->payload;
-               /* TODO: Parse state change and translate to tty API. */
+               gb_tty->ctrlin = le16_to_cpu(serial_state->control);
                break;
        default:
                dev_err(&connection->dev,