From patchwork Tue Feb 4 23:49:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Steve Longerbeam X-Patchwork-Id: 11365517 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3644B14D5 for ; Tue, 4 Feb 2020 23:52:06 +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 F19A62087E for ; Tue, 4 Feb 2020 23:52:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="pB3Gswy2"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="UxqEcdYl" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F19A62087E 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+patchwork-linux-arm=patchwork.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=TmDJwrHW+cFGXy0nYQfKOFgfHw6bAoleZQbOynDG7es=; b=pB3Gswy2mG9yqkeB1CSTGAEAnC 6MYFEdqSi5u8twztKxiNnSrS9aWwo5LkNrBFs+O81qOLKytmpUq0xMRm6HXF7UdKsgUtF1GOkS6G7 1uZqE5b8Aa/0rUmYJPHbp0jG6IdxA207dubgpKLpzrL4eO+3apOR4evP4ELt678g2GeHRSos7jnCV /S1s+zJfS7MmFIjXvDd80rRlHpH4kWjAOi54Vfhl2InXJnsjiFnY3nJgWLTedTvep83ciZjrHiIPD 783oJIh08C+QYKS0ELx5PtY/9BTO/+SF9knrWcdA3YTflpGisBODL4U6iucfF2PPzbNZiVsYMpD0l 2aGp4jww==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iz7z7-00082c-FO; Tue, 04 Feb 2020 23:52:01 +0000 Received: from mail-pl1-x641.google.com ([2607:f8b0:4864:20::641]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1iz7x6-0004hs-Hi for linux-arm-kernel@lists.infradead.org; Tue, 04 Feb 2020 23:49:58 +0000 Received: by mail-pl1-x641.google.com with SMTP id t6so71012plj.5 for ; Tue, 04 Feb 2020 15:49:56 -0800 (PST) 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=rpOa6ZNketVlDD1fVg7Q22Hn4Eag+44bEMCsUONO9O8=; b=UxqEcdYlJVeiHHA12YO9pv3ytQQjQmKhJKQwvY3u3wtdIi5J1xEzSIKs039PNCLNTs HmI/0knX5WGDR8jOMi8vaWcH35JMcrHTvP0RoEzLBzXdsbyOySHAHDI0pQvGQrzH8Ajz kOINuEu576sx5HHFZsg6lMNj9VGm6tERhutEFTc6tz/QbwSjrekWu9vcjurAnIyy8uk2 2t3U3ltcTFpIrYb28vpiW31WuVPdzK9QJDFPnP3sRTt/WH26imKquOydcGYZKImSipCW 4WmlrOPCtqC5OywrC8rKvDn566cWP7JEE18ZWeg4SvA81SmlsXyfs2Y++lElrnzK56Ty OOaQ== 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=rpOa6ZNketVlDD1fVg7Q22Hn4Eag+44bEMCsUONO9O8=; b=KEDGpr3gEtmsUv5W7DE2EdlBU3mwGJoU7JGf6H+Yh9GKXk9Fi0TRCW6Mzk0iVwzlrC f1fLYwm7wRZKOsSnRDbKBF9icfHIMn4Vcv60EdGFisYwCdOcAFkm6wFgGfqTZhvhv8KI HTtL8XmNA+x4hQ2RWdpMVUWSqtU1Z8AXGuJQMazX9mkxInWkUPrNrNYQg9qcmd7t3+3e xt/X2s1PNEbIWQp/qMa6KnvbTfmaNr9cwzThH342joqP42G5X3olqYX4opPjw83uVBBc YbjPBCo4S9iqNPgjx7lsU+7Cl9/QK1SeseJMHzSyxqex8rvx6Y2AJUK76kllYhNYYlM6 8xCQ== X-Gm-Message-State: APjAAAWUjHN7DN+BsM7MC1BQpbfqJ9ZELsY1c2JtlYrbnjXHM/Idnqmv WCkMDSHJ0mLp0Wk6MX1ZDw8= X-Google-Smtp-Source: APXvYqyKFPfgvCRH/r+BzE/EtyTVGNDz9ilLfiMxWPls1ZrZOCZfuEATKaYXPq63e90SYO8U2P+Ewg== X-Received: by 2002:a17:902:8a88:: with SMTP id p8mr31573263plo.179.1580860195925; Tue, 04 Feb 2020 15:49:55 -0800 (PST) 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 u2sm24607929pgj.7.2020.02.04.15.49.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Feb 2020 15:49:55 -0800 (PST) From: Steve Longerbeam To: linux-media@vger.kernel.org, Rui Miguel Silva , Philipp Zabel Subject: [PATCH v3 14/17] media: imx: csi: Lookup upstream endpoint with imx_media_get_pad_fwnode Date: Tue, 4 Feb 2020 15:49:15 -0800 Message-Id: <20200204234918.20425-15-slongerbeam@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200204234918.20425-1-slongerbeam@gmail.com> References: <20200204234918.20425-1-slongerbeam@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200204_154956_767764_B76460C0 X-CRM114-Status: GOOD ( 16.55 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:641 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider [slongerbeam[at]gmail.com] -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 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 , Greg Kroah-Hartman , Sascha Hauer , open list , NXP Linux Team , Pengutronix Kernel Team , Steve Longerbeam , Mauro Carvalho Chehab , Shawn Guo , "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Fix the 1:1 port-id:pad-index assumption for the upstream subdevice, by searching the upstream subdevice's endpoints for one that maps to the pad's index. 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 2a8f01375f78..7d4c1c9640dd 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 87152bd9af22..61752c6b074d 100644 --- a/drivers/staging/media/imx/imx-media-utils.c +++ b/drivers/staging/media/imx/imx-media-utils.c @@ -1007,6 +1007,39 @@ 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 f90a65ba4ced..5f23d852122f 100644 --- a/drivers/staging/media/imx/imx-media.h +++ b/drivers/staging/media/imx/imx-media.h @@ -205,6 +205,7 @@ 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 cf9f675c53a3..f2ed13aca2b0 100644 --- a/drivers/staging/media/imx/imx7-media-csi.c +++ b/drivers/staging/media/imx/imx7-media-csi.c @@ -439,9 +439,8 @@ 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) @@ -463,29 +462,19 @@ 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; }