From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.kernel.org ([198.145.29.99]:60472 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726723AbeJIBsV (ORCPT ); Mon, 8 Oct 2018 21:48:21 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= , Leonard Crestez Subject: [PATCH 4.4 061/113] serial: imx: restore handshaking irq for imx1 Date: Mon, 8 Oct 2018 20:31:02 +0200 Message-Id: <20181008175534.349053256@linuxfoundation.org> In-Reply-To: <20181008175530.864641368@linuxfoundation.org> References: <20181008175530.864641368@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Uwe Kleine-König 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 Signed-off-by: Uwe Kleine-König Reviewed-by: Leonard Crestez Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/imx.c | 8 ++++++++ 1 file changed, 8 insertions(+) --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -1997,6 +1997,14 @@ static int serial_imx_probe(struct platf 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);