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=-9.5 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 5CEB1C0650F for ; Mon, 5 Aug 2019 23:37:34 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 26243214C6 for ; Mon, 5 Aug 2019 23:37:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="YWzwE9Zh"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="AhxGn7uG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 26243214C6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=+rZ2OgQe7bEUovwnERCi9DumwbviSfHcxPikOmCiPjE=; b=YWzwE9Zh0WnsUFPcQinersUDOJ UUrLirMKs1oaQI9GYZInz6v7SdHB80pGwg5eGmCnJm0PTDxrzaBUJjir/jefAlpxvAIahz/54GTNE RchfIDb6Lk+wwMXM4dySAuR7Ye+iIe7NOC3fg+qpw04HX2OtzzE6H7hla0780tfD85Ijnbz2lLeDS MRZeyrDpep+kZqEz0daG5klmY5I1onJeQ7hoREnZnw5KnnAgJQetq5MoGiIrBK8mx6kAe1vPXAIcs ZLPkNIFqlJJlCCA7Z9rBhn0JdoqC1/KWfurUB1kVVyVcDj3qk7cuM7+2O0BxfchrwkAUH6ZkLQBFW qfWMBlag==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1humXa-00070J-LF; Mon, 05 Aug 2019 23:37:22 +0000 Received: from mail-pg1-x544.google.com ([2607:f8b0:4864:20::544]) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1humVu-00051t-91 for linux-arm-kernel@lists.infradead.org; Mon, 05 Aug 2019 23:35:40 +0000 Received: by mail-pg1-x544.google.com with SMTP id n190so5389000pgn.0 for ; Mon, 05 Aug 2019 16:35:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=SzPXhAIDJJVPxRQjm5dl35CCesjMMtT8aLvkE/D76vE=; b=AhxGn7uGF82d3u+PITZWpmxompnLOWgJO9HrgllV8YvuhA6O+sm+OT2Fmo4+ReXhIH rc6PsyRUFKuyEkruD0L9Dfhx9JKLJSxpD2f3BWRsk+8sj07mfSPzkmQTpF+3axXh7C7a BVsnk3jIJSGjF/uLAgHc7jF9s3RsLw87/IFLxVi9JkYVRytq+MD/WlKPogWdJ+klCPW0 B7RfPX0/Nb9ayS9qH48WFo7uvOYw/3JW59AM4skWrMadcq1XOrkCofBD/jrZ07MlTXA3 BKNJAL1f2Z4OPtxSfdUgIHu7I9JxQa7LLiQVI+EoXzDX24xu5dotr/IwM0RyEdZ8kCjT f1mA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=SzPXhAIDJJVPxRQjm5dl35CCesjMMtT8aLvkE/D76vE=; b=FfAXHmJ436Xc6JRVEJFGWsgKvRAQ8C8tYriD5i0Ogr3/Tioiy8PluNg9TTedjZAsKA IPJ+55vZt2nkdLIRBtZetxXidWEe09CnmXJUVe6nfxIrDQOse2CpCcYgWj/JT5bxNkUo Lf7uHaSy9WpzO53uC/yXxgAyPbRHAeKeRXfy7uvkHJdIOTPovmkkH58n+wq/mVHYDAPK RkRCh5HIawVnVdBbc+Ttrq7oEHNNB8r7mjjUUjWFHRi/WJqTHIAPx+IyocbBOsLrU4up SSqB1fuBixJ8i/5lgPZQeaYulO8GYFuBTvbI9BsATRXEAxO3RC8jl5sYiUGfhzJprg5c 71Aw== X-Gm-Message-State: APjAAAXJFYl+JAMIfDpyAj3MsfMwijpojuEOE0gXqBti8izo1BEsDZUg Dh5lKhKgcOJp3qaBXNMlaHc= X-Google-Smtp-Source: APXvYqzI0G6RmtOIgcu5JlAUTuDB6qP16++PmpcC16BXSP2WyOz+NuOkX6F+YZTN+IpvcZ6pmS1dyg== X-Received: by 2002:a65:690e:: with SMTP id s14mr336282pgq.47.1565048137522; Mon, 05 Aug 2019 16:35:37 -0700 (PDT) Received: from majic.sklembedded.com (c-73-202-231-77.hsd1.ca.comcast.net. [73.202.231.77]) by smtp.googlemail.com with ESMTPSA id 30sm31296349pjk.17.2019.08.05.16.35.36 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 05 Aug 2019 16:35:37 -0700 (PDT) From: Steve Longerbeam To: linux-media@vger.kernel.org Subject: [PATCH 19/22] media: imx: csi: Lookup endpoint fwnode with media_entity_get_fwnode_pad Date: Mon, 5 Aug 2019 16:35:02 -0700 Message-Id: <20190805233505.21167-20-slongerbeam@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190805233505.21167-1-slongerbeam@gmail.com> References: <20190805233505.21167-1-slongerbeam@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190805_163538_370894_168A23D8 X-CRM114-Status: GOOD ( 16.44 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "open list:STAGING SUBSYSTEM" , Fabio Estevam , Pengutronix Kernel Team , Greg Kroah-Hartman , Sascha Hauer , open list , Rui Miguel Silva , NXP Linux Team , Philipp Zabel , Steve Longerbeam , Mauro Carvalho Chehab , Shawn Guo , "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org Fix the 1:1 port-id:pad-index assumption for the upstream subdevice connected to a CSI via one of the subdevice's pads, by searching the upstream subdevice's endpoints for one that maps to the pad's index, using media_entity_get_fwnode_pad(). This is carried out by a new reverse mapping function imx_media_get_pad_fwnode(). Signed-off-by: Steve Longerbeam --- drivers/staging/media/imx/imx-media-csi.c | 22 ++++---------- drivers/staging/media/imx/imx-media-utils.c | 33 +++++++++++++++++++++ drivers/staging/media/imx/imx-media.h | 1 + drivers/staging/media/imx/imx7-media-csi.c | 25 +++++----------- 4 files changed, 47 insertions(+), 34 deletions(-) diff --git a/drivers/staging/media/imx/imx-media-csi.c b/drivers/staging/media/imx/imx-media-csi.c index 37b10cbf3c1a..38e70082ff2d 100644 --- a/drivers/staging/media/imx/imx-media-csi.c +++ b/drivers/staging/media/imx/imx-media-csi.c @@ -164,7 +164,7 @@ static inline bool requires_passthrough(struct v4l2_fwnode_endpoint *ep, static int csi_get_upstream_endpoint(struct csi_priv *priv, struct v4l2_fwnode_endpoint *ep) { - struct device_node *endpoint, *port; + struct fwnode_handle *endpoint; struct media_entity *src; struct v4l2_subdev *sd; struct media_pad *pad; @@ -203,23 +203,13 @@ static int csi_get_upstream_endpoint(struct csi_priv *priv, if (!pad) return -ENODEV; - sd = media_entity_to_v4l2_subdev(pad->entity); + endpoint = imx_media_get_pad_fwnode(pad); + if (IS_ERR(endpoint)) + return PTR_ERR(endpoint); - /* - * NOTE: this assumes an OF-graph port id is the same as a - * media pad index. - */ - port = of_graph_get_port_by_id(sd->dev->of_node, pad->index); - if (!port) - return -ENODEV; - - endpoint = of_get_next_child(port, NULL); - of_node_put(port); - if (!endpoint) - return -ENODEV; + v4l2_fwnode_endpoint_parse(endpoint, ep); - v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), ep); - of_node_put(endpoint); + fwnode_handle_put(endpoint); return 0; } diff --git a/drivers/staging/media/imx/imx-media-utils.c b/drivers/staging/media/imx/imx-media-utils.c index 4cc6a7462ae2..2e4f27c214c4 100644 --- a/drivers/staging/media/imx/imx-media-utils.c +++ b/drivers/staging/media/imx/imx-media-utils.c @@ -908,6 +908,39 @@ imx_media_pipeline_video_device(struct media_entity *start_entity, } EXPORT_SYMBOL_GPL(imx_media_pipeline_video_device); +/* + * Find a fwnode endpoint that maps to the given subdevice's pad. + * If there are multiple endpoints that map to the pad, only the + * first endpoint encountered is returned. + * + * On success the refcount of the returned fwnode endpoint is + * incremented. + */ +struct fwnode_handle *imx_media_get_pad_fwnode(struct media_pad *pad) +{ + struct fwnode_handle *endpoint; + struct v4l2_subdev *sd; + + if (!is_media_entity_v4l2_subdev(pad->entity)) + return ERR_PTR(-ENODEV); + + sd = media_entity_to_v4l2_subdev(pad->entity); + + fwnode_graph_for_each_endpoint(dev_fwnode(sd->dev), endpoint) { + int pad_idx = media_entity_get_fwnode_pad(&sd->entity, + endpoint, + pad->flags); + if (pad_idx < 0) + continue; + + if (pad_idx == pad->index) + return endpoint; + } + + return ERR_PTR(-ENODEV); +} +EXPORT_SYMBOL_GPL(imx_media_get_pad_fwnode); + /* * Turn current pipeline streaming on/off starting from entity. */ diff --git a/drivers/staging/media/imx/imx-media.h b/drivers/staging/media/imx/imx-media.h index 4d124a86b358..d75b3c80101a 100644 --- a/drivers/staging/media/imx/imx-media.h +++ b/drivers/staging/media/imx/imx-media.h @@ -195,6 +195,7 @@ imx_media_pipeline_subdev(struct media_entity *start_entity, u32 grp_id, struct video_device * imx_media_pipeline_video_device(struct media_entity *start_entity, enum v4l2_buf_type buftype, bool upstream); +struct fwnode_handle *imx_media_get_pad_fwnode(struct media_pad *pad); struct imx_media_dma_buf { void *virt; diff --git a/drivers/staging/media/imx/imx7-media-csi.c b/drivers/staging/media/imx/imx7-media-csi.c index f71ac485f780..50826e637cb5 100644 --- a/drivers/staging/media/imx/imx7-media-csi.c +++ b/drivers/staging/media/imx/imx7-media-csi.c @@ -438,9 +438,8 @@ static int imx7_csi_get_upstream_endpoint(struct imx7_csi *csi, struct v4l2_fwnode_endpoint *ep, bool skip_mux) { - struct device_node *endpoint, *port; + struct fwnode_handle *endpoint; struct media_entity *src; - struct v4l2_subdev *sd; struct media_pad *pad; if (!csi->src_sd) @@ -462,29 +461,19 @@ static int imx7_csi_get_upstream_endpoint(struct imx7_csi *csi, if (!pad) return -ENODEV; - sd = media_entity_to_v4l2_subdev(pad->entity); - /* To get bus type we may need to skip video mux */ if (skip_mux && src->function == MEDIA_ENT_F_VID_MUX) { - src = &sd->entity; + src = pad->entity; goto skip_video_mux; } - /* - * NOTE: this assumes an OF-graph port id is the same as a - * media pad index. - */ - port = of_graph_get_port_by_id(sd->dev->of_node, pad->index); - if (!port) - return -ENODEV; + endpoint = imx_media_get_pad_fwnode(pad); + if (IS_ERR(endpoint)) + return PTR_ERR(endpoint); - endpoint = of_get_next_child(port, NULL); - of_node_put(port); - if (!endpoint) - return -ENODEV; + v4l2_fwnode_endpoint_parse(endpoint, ep); - v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), ep); - of_node_put(endpoint); + fwnode_handle_put(endpoint); return 0; } -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel