From patchwork Thu Jun 30 23:06:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 12902370 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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 5C948CCA482 for ; Thu, 30 Jun 2022 23:08:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=INEIqlZYBXJvckQDBSsbB4/OYFhsSIx6tPBUdJPL1ps=; b=u5oneldNWlgzOC vEayT7r5JHWYSv1EfhPNjyLmHnt5Ex1o9XeRXhKPxUO9oTgFltnxFC+4nsjYDfUYIlyxRIDyI3av5 r5kdjAECt9aK0rwLgzL2i7Wrnzzp+ozvF74gz+VqOLs/TUsNXHCWDmVYZqA6i+n5W7vwfvBRlL3MV NnzABbYUhmbbQDx3VnOliyyvTL0dOYxlZHnOt2pFurrNfZ2Guad4xwpRoe7fXOM5FcKCEqH+HgCg7 ZutgaOOywC2ap6OCJ/77aab1AV/12YQLjTTvy+i1vJjMZ5+XAI9NJWVPvyO04sjrr8l0VnyE48XMh bNnrfH69+Vqw892VPTwQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o73Gz-0020lq-36; Thu, 30 Jun 2022 23:08:33 +0000 Received: from perceval.ideasonboard.com ([213.167.242.64]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o73GX-0020Rg-Hj for linux-rockchip@lists.infradead.org; Thu, 30 Jun 2022 23:08:18 +0000 Received: from pendragon.lan (62-78-145-57.bb.dnainternet.fi [62.78.145.57]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id B4D062A0D; Fri, 1 Jul 2022 01:08:03 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1656630484; bh=E7wx+Givrops2Em5viTqLD4swjZIINgoU1dEi9o0D1w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZE8F4EA0CTWcPBH8plI4ZwBHXCoR8BveE26IMBd4ZhcyExaei9nNRZptVr4JHnAew pcteKGme5IaN/S/NIS9EBYUSdcDyU0ZCxHRtO48fFQUEvqCL4E6bsr1rU2KV8xob3a W6mvpOx8LaghssgE3yCL0Nh8nmnvN8RrYEp2iANQ= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: linux-rockchip@lists.infradead.org, Dafna Hirschfeld , Heiko Stuebner , Helen Koike , Paul Elder Subject: [PATCH v2 41/55] media: rkisp1: Use fwnode_graph_for_each_endpoint Date: Fri, 1 Jul 2022 02:06:59 +0300 Message-Id: <20220630230713.10580-42-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220630230713.10580-1-laurent.pinchart@ideasonboard.com> References: <20220630230713.10580-1-laurent.pinchart@ideasonboard.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220630_160805_767702_60D3E6E4 X-CRM114-Status: GOOD ( 12.63 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org From: Paul Elder When registering the notifier, replace the manual while loop with fwnode_graph_for_each_endpoint. This simplifies error handling. Signed-off-by: Paul Elder Reviewed-by: Laurent Pinchart Reviewed-by: Dafna Hirschfeld --- .../platform/rockchip/rkisp1/rkisp1-dev.c | 44 +++++++++---------- 1 file changed, 20 insertions(+), 24 deletions(-) diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c index c3a7ab70bbef..0eb37ba557ce 100644 --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c @@ -168,29 +168,28 @@ static const struct v4l2_async_notifier_operations rkisp1_subdev_notifier_ops = static int rkisp1_subdev_notifier_register(struct rkisp1_device *rkisp1) { struct v4l2_async_notifier *ntf = &rkisp1->notifier; - unsigned int next_id = 0; + struct fwnode_handle *fwnode = dev_fwnode(rkisp1->dev); + struct fwnode_handle *ep; unsigned int index = 0; - int ret; + int ret = 0; v4l2_async_nf_init(ntf); - while (1) { + ntf->ops = &rkisp1_subdev_notifier_ops; + + fwnode_graph_for_each_endpoint(fwnode, ep) { struct v4l2_fwnode_endpoint vep = { .bus_type = V4L2_MBUS_CSI2_DPHY }; struct rkisp1_sensor_async *rk_asd; - struct fwnode_handle *source = NULL; - struct fwnode_handle *ep; - - ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(rkisp1->dev), - 0, next_id, - FWNODE_GRAPH_ENDPOINT_NEXT); - if (!ep) - break; + struct fwnode_handle *source; ret = v4l2_fwnode_endpoint_parse(ep, &vep); - if (ret) - goto err_parse; + if (ret) { + dev_err(rkisp1->dev, "failed to parse endpoint %pfw\n", + ep); + break; + } source = fwnode_graph_get_remote_endpoint(ep); if (!source) { @@ -198,14 +197,15 @@ static int rkisp1_subdev_notifier_register(struct rkisp1_device *rkisp1) "endpoint %pfw has no remote endpoint\n", ep); ret = -ENODEV; - goto err_parse; + break; } rk_asd = v4l2_async_nf_add_fwnode(ntf, source, struct rkisp1_sensor_async); if (IS_ERR(rk_asd)) { + fwnode_handle_put(source); ret = PTR_ERR(rk_asd); - goto err_parse; + break; } rk_asd->index = index++; @@ -216,27 +216,23 @@ static int rkisp1_subdev_notifier_register(struct rkisp1_device *rkisp1) dev_dbg(rkisp1->dev, "registered ep id %d with %d lanes\n", vep.base.id, rk_asd->lanes); + } - next_id = vep.base.id + 1; - - fwnode_handle_put(ep); - - continue; -err_parse: + if (ret) { fwnode_handle_put(ep); - fwnode_handle_put(source); v4l2_async_nf_cleanup(ntf); return ret; } - if (next_id == 0) + if (!index) dev_dbg(rkisp1->dev, "no remote subdevice found\n"); - ntf->ops = &rkisp1_subdev_notifier_ops; + ret = v4l2_async_nf_register(&rkisp1->v4l2_dev, ntf); if (ret) { v4l2_async_nf_cleanup(ntf); return ret; } + return 0; }