From patchwork Thu Dec 16 09:03:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Kepplinger X-Patchwork-Id: 12680295 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 68BFCC433EF for ; Thu, 16 Dec 2021 09:04:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232667AbhLPJEb (ORCPT ); Thu, 16 Dec 2021 04:04:31 -0500 Received: from comms.puri.sm ([159.203.221.185]:54898 "EHLO comms.puri.sm" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232697AbhLPJE1 (ORCPT ); Thu, 16 Dec 2021 04:04:27 -0500 Received: from localhost (localhost [127.0.0.1]) by comms.puri.sm (Postfix) with ESMTP id E9305DFFB4; Thu, 16 Dec 2021 01:03:56 -0800 (PST) Received: from comms.puri.sm ([127.0.0.1]) by localhost (comms.puri.sm [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id re3f4k7x-6TU; Thu, 16 Dec 2021 01:03:56 -0800 (PST) From: Martin Kepplinger To: martin.kepplinger@puri.sm, festevam@gmail.com, laurent.pinchart@ideasonboard.com, p.zabel@pengutronix.de Cc: kernel@pengutronix.de, linux-arm-kernel@lists.infradead.org, linux-imx@nxp.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-staging@lists.linux.dev, mchehab@kernel.org, slongerbeam@gmail.com, kernel@puri.sm Subject: [PATCH v2 1/2] media: imx: imx8mq-mipi-csi2: remove wrong irq config write operation Date: Thu, 16 Dec 2021 10:03:35 +0100 Message-Id: <20211216090336.451665-2-martin.kepplinger@puri.sm> In-Reply-To: <20211216090336.451665-1-martin.kepplinger@puri.sm> References: <20211216090336.451665-1-martin.kepplinger@puri.sm> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The place where this register writel() that masks one interrupt is placed does not guarantee that the device is powered so that's not allowed. Moreover imx8mq_mipi_csi_start_stream() masks the interrupt anyway so the write is not even needed. Remove it as this is a mistake that slipped in with the driver. Fixes: f33fd8d77dd0 ("media: imx: add a driver for i.MX8MQ mipi csi rx phy and controller") Signed-off-by: Martin Kepplinger --- drivers/staging/media/imx/imx8mq-mipi-csi2.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/staging/media/imx/imx8mq-mipi-csi2.c b/drivers/staging/media/imx/imx8mq-mipi-csi2.c index 7adbdd14daa9..8f3cc138c52c 100644 --- a/drivers/staging/media/imx/imx8mq-mipi-csi2.c +++ b/drivers/staging/media/imx/imx8mq-mipi-csi2.c @@ -398,9 +398,6 @@ static int imx8mq_mipi_csi_s_stream(struct v4l2_subdev *sd, int enable) struct csi_state *state = mipi_sd_to_csi2_state(sd); int ret = 0; - imx8mq_mipi_csi_write(state, CSI2RX_IRQ_MASK, - CSI2RX_IRQ_MASK_ULPS_STATUS_CHANGE); - if (enable) { ret = pm_runtime_resume_and_get(state->dev); if (ret < 0)