commit 7e620984b62532783912312e334f3c48cdacbd5d upstream.
Back in 2015 when irda was dropped from the driver imx1 was broken. This change reintroduces the support for the third interrupt of the UART.
Fixes: afe9cbb1a6ad ("serial: imx: drop support for IRDA") Cc: stable stable@vger.kernel.org Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de Reviewed-by: Leonard Crestez leonard.crestez@nxp.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org [ukl: backport to 4.4.y which has changed context and different function names] Signed-off-by: Uwe Kleine-König u.kleine-koenig@pengutronix.de --- Hello,
this is the backport for v4.4.y. The changed context is that a failure to request the other irqs doesn't emit an error message which was added in commit 1e512d45332bb3a2e97ca262101d43adca274bb2. I still kept the error message for the added function as does the original commit.
Best regards Uwe
drivers/tty/serial/imx.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 07ede982b472..f5f46c121ee3 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1997,6 +1997,14 @@ static int serial_imx_probe(struct platform_device *pdev) dev_name(&pdev->dev), sport); if (ret) return ret; + + ret = devm_request_irq(&pdev->dev, rtsirq, imx_rtsint, 0, + dev_name(&pdev->dev), sport); + if (ret) { + dev_err(&pdev->dev, "failed to request rts irq: %d\n", + ret); + return ret; + } } else { ret = devm_request_irq(&pdev->dev, rxirq, imx_int, 0, dev_name(&pdev->dev), sport);