From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 74CF3C433E0 for ; Mon, 15 Feb 2021 04:34:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3EC6664E52 for ; Mon, 15 Feb 2021 04:34:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229960AbhBOEeX (ORCPT ); Sun, 14 Feb 2021 23:34:23 -0500 Received: from perceval.ideasonboard.com ([213.167.242.64]:45636 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229904AbhBOEeK (ORCPT ); Sun, 14 Feb 2021 23:34:10 -0500 Received: from pendragon.lan (62-78-145-57.bb.dnainternet.fi [62.78.145.57]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 362E21952; Mon, 15 Feb 2021 05:28:33 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1613363313; bh=rLGIY23JWW4JTlN/e6tNeP7C20At9SydaHA0DHDwVjc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SI5Sm3orqVTpbXWrSjt2v2qgMme44KQLcSxegWOQ4hc/uAGZ0mQNzXrleOKE0p3rM QGMDZrG0INieHZULqDvk5tiii+yRZ2PLOuibuEfet64zqol8P+/02pyRVmnZ5it3l4 /dgNa2J+trpsXu/Q4YixlqVuZZT3V7lmFmQzI0Bs= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Rui Miguel Silva , Steve Longerbeam , Philipp Zabel , Ezequiel Garcia , Fabio Estevam Subject: [PATCH v2 30/77] media: imx: capture: Support creating immutable link to capture device Date: Mon, 15 Feb 2021 06:26:54 +0200 Message-Id: <20210215042741.28850-31-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20210215042741.28850-1-laurent.pinchart@ideasonboard.com> References: <20210215042741.28850-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org When the subdevice connected to the capture device has a single possible sink, there's no point in making the link mutable. Support creating immutable links. Signed-off-by: Laurent Pinchart Reviewed-by: Rui Miguel Silva --- Changes since v1: - Pass link flags to imx_media_capture_device_register() --- drivers/staging/media/imx/imx-ic-prpencvf.c | 2 +- drivers/staging/media/imx/imx-media-capture.c | 7 +++++-- drivers/staging/media/imx/imx-media-csi.c | 2 +- drivers/staging/media/imx/imx-media.h | 3 ++- drivers/staging/media/imx/imx7-media-csi.c | 2 +- 5 files changed, 10 insertions(+), 6 deletions(-) diff --git a/drivers/staging/media/imx/imx-ic-prpencvf.c b/drivers/staging/media/imx/imx-ic-prpencvf.c index 88d69425e1b3..d990553de87b 100644 --- a/drivers/staging/media/imx/imx-ic-prpencvf.c +++ b/drivers/staging/media/imx/imx-ic-prpencvf.c @@ -1269,7 +1269,7 @@ static int prp_registered(struct v4l2_subdev *sd) if (IS_ERR(priv->vdev)) return PTR_ERR(priv->vdev); - ret = imx_media_capture_device_register(priv->vdev); + ret = imx_media_capture_device_register(priv->vdev, 0); if (ret) goto remove_vdev; diff --git a/drivers/staging/media/imx/imx-media-capture.c b/drivers/staging/media/imx/imx-media-capture.c index c4360866f7f6..93ba09236010 100644 --- a/drivers/staging/media/imx/imx-media-capture.c +++ b/drivers/staging/media/imx/imx-media-capture.c @@ -898,7 +898,8 @@ static int capture_init_format(struct capture_priv *priv) return 0; } -int imx_media_capture_device_register(struct imx_media_video_dev *vdev) +int imx_media_capture_device_register(struct imx_media_video_dev *vdev, + u32 link_flags) { struct capture_priv *priv = to_capture_priv(vdev); struct v4l2_subdev *sd = priv->src_sd; @@ -927,8 +928,10 @@ int imx_media_capture_device_register(struct imx_media_video_dev *vdev) video_device_node_name(vfd)); /* Create the link from the src_sd devnode pad to device node. */ + if (link_flags & MEDIA_LNK_FL_IMMUTABLE) + link_flags |= MEDIA_LNK_FL_ENABLED; ret = media_create_pad_link(&sd->entity, priv->src_sd_pad, - &vfd->entity, 0, 0); + &vfd->entity, 0, link_flags); if (ret) { dev_err(priv->dev, "failed to create link to device node\n"); video_unregister_device(vfd); diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c index 45c92816facc..8d02939aaa23 100644 --- a/drivers/staging/media/imx/imx-media-csi.c +++ b/drivers/staging/media/imx/imx-media-csi.c @@ -1788,7 +1788,7 @@ static int csi_registered(struct v4l2_subdev *sd) goto free_fim; } - ret = imx_media_capture_device_register(priv->vdev); + ret = imx_media_capture_device_register(priv->vdev, 0); if (ret) goto remove_vdev; diff --git a/drivers/staging/media/imx/imx-media.h b/drivers/staging/media/imx/imx-media.h index 2ea2e62ddf86..492d9a64e704 100644 --- a/drivers/staging/media/imx/imx-media.h +++ b/drivers/staging/media/imx/imx-media.h @@ -288,7 +288,8 @@ struct imx_media_video_dev * imx_media_capture_device_init(struct device *dev, struct v4l2_subdev *src_sd, int pad, bool legacy_api); void imx_media_capture_device_remove(struct imx_media_video_dev *vdev); -int imx_media_capture_device_register(struct imx_media_video_dev *vdev); +int imx_media_capture_device_register(struct imx_media_video_dev *vdev, + u32 link_flags); void imx_media_capture_device_unregister(struct imx_media_video_dev *vdev); struct imx_media_buffer * imx_media_capture_device_next_buf(struct imx_media_video_dev *vdev); diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c index 3bf2505de6a2..90cf4b889e23 100644 --- a/drivers/staging/media/imx/imx7-media-csi.c +++ b/drivers/staging/media/imx/imx7-media-csi.c @@ -1104,7 +1104,7 @@ static int imx7_csi_registered(struct v4l2_subdev *sd) if (IS_ERR(csi->vdev)) return PTR_ERR(csi->vdev); - ret = imx_media_capture_device_register(csi->vdev); + ret = imx_media_capture_device_register(csi->vdev, 0); if (ret) imx_media_capture_device_remove(csi->vdev); -- Regards, Laurent Pinchart