From patchwork Thu Dec 24 01:08:56 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Scally X-Patchwork-Id: 11989081 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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 013D1C4332D for ; Thu, 24 Dec 2020 01:10:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C2E542251F for ; Thu, 24 Dec 2020 01:10:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728603AbgLXBKH (ORCPT ); Wed, 23 Dec 2020 20:10:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48214 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728292AbgLXBKH (ORCPT ); Wed, 23 Dec 2020 20:10:07 -0500 Received: from mail-wr1-x436.google.com (mail-wr1-x436.google.com [IPv6:2a00:1450:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F1CF5C0617A7; Wed, 23 Dec 2020 17:09:26 -0800 (PST) Received: by mail-wr1-x436.google.com with SMTP id t30so863280wrb.0; Wed, 23 Dec 2020 17:09:26 -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 :mime-version:content-transfer-encoding; bh=DvDqehonh9fJU3lIRKp5e7XlhCvPU40zhGdMSiw+RMQ=; b=pfR/x2jjqaVFnwEQUAurcsb7F7wLH78sdSxLj/YvQic35Kc7FHoZBMqtkianzPN7UC chkfTHYaB5Gf9jkr1c5Vt/qnvnmOQ7H4j4Dyd2H6qSSI0ElDqT04m++TdXCwgc5g24bX RY4DvClbL+d59qZ1aG6OGAXzsdEge5IxJFR/O/3Qw92fXIhkUqRrFw738V//hXwWzbVs E3SO8cQRIhsxY3wCMmAzE0Dp6sKdCPYNU9aSYD+vUvPxIfTD89SqoALjG+ZYU+vy6JZL 554TamctZqHhyloiMqJQbf0eFkaMIi+HPXaJVI18GOkyjPK3dCkvchshziZAUSMdG2O+ D6pA== 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:mime-version:content-transfer-encoding; bh=DvDqehonh9fJU3lIRKp5e7XlhCvPU40zhGdMSiw+RMQ=; b=MACVDh7Esvnjunr3g7WIhc9Rge6U+HIRoqMXAaQcGtV/XEXht5dZGUIU1u+nI03rri XDcr7czvDhme5HajTO9ZofLTSlMvfR0Jti+I0KA/dv7BALYrF8u/gOB24pm9bgbR0RJR HLQmwCMEVv8v9CUmfv/poehWD3tOe/kqWq0H2uDJqYkm5xSORYhvh5uCdvVzp4dK6s1K EKHiKVrzNyZhg/yHbUFBSEbeB+ocamiSRbmluBWDS9N70yjGxtcG706+1BYlOuoIjZ2r ZOu4bWnt2VuQBABC+ZVXT+9JgnSvgAlLWZPxKMCfJpV5Ys/KuIM/Aycdt80vykm2D9Ge vF5g== X-Gm-Message-State: AOAM530UszS4xtI7h0V4vBEaiBZkprx1UBYnvtL0Ype0GUvEkcgvg3Mh 4vA2UgU1PbDsMpaegJqe2v4YluBCf4CasOLh X-Google-Smtp-Source: ABdhPJw9zP6EglJ8DwOvG/RvMN7mU/zAxnkt4abmaLIL16MH6/j/6H2GghVT0trn76cwDNzGfT8HCw== X-Received: by 2002:adf:eb05:: with SMTP id s5mr31544825wrn.333.1608772165748; Wed, 23 Dec 2020 17:09:25 -0800 (PST) Received: from valhalla.home ([2.31.224.116]) by smtp.gmail.com with ESMTPSA id b200sm1598653wmb.10.2020.12.23.17.09.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Dec 2020 17:09:25 -0800 (PST) From: Daniel Scally To: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-media@vger.kernel.org, devel@acpica.org Cc: rjw@rjwysocki.net, lenb@kernel.org, gregkh@linuxfoundation.org, yong.zhi@intel.com, sakari.ailus@linux.intel.com, bingbu.cao@intel.com, tian.shu.qiu@intel.com, mchehab@kernel.org, robert.moore@intel.com, erik.kaneda@intel.com, pmladek@suse.com, rostedt@goodmis.org, sergey.senozhatsky@gmail.com, andriy.shevchenko@linux.intel.com, linux@rasmusvillemoes.dk, laurent.pinchart+renesas@ideasonboard.com, jacopo+renesas@jmondi.org, kieran.bingham+renesas@ideasonboard.com, hverkuil-cisco@xs4all.nl, m.felsch@pengutronix.de, niklas.soderlund+renesas@ragnatech.se, slongerbeam@gmail.com, heikki.krogerus@linux.intel.com, linus.walleij@linaro.org, Laurent Pinchart Subject: [PATCH v3 03/14] property: Call fwnode_graph_get_endpoint_by_id() for fwnode->secondary Date: Thu, 24 Dec 2020 01:08:56 +0000 Message-Id: <20201224010907.263125-4-djrscally@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20201224010907.263125-1-djrscally@gmail.com> References: <20201224010907.263125-1-djrscally@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org This function is used to find fwnode endpoints against a device. In some instances those endpoints are software nodes which are children of fwnode->secondary. Add support to fwnode_graph_get_endpoint_by_id() to find those endpoints by recursively calling itself passing the ptr to fwnode->secondary in the event no endpoint is found for the primary. Reviewed-by: Andy Shevchenko Reviewed-by: Laurent Pinchart Acked-by: Sakari Ailus Signed-off-by: Daniel Scally --- Changes in v3 - None drivers/base/property.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/base/property.c b/drivers/base/property.c index bc9c634df6df..ddba75d90af2 100644 --- a/drivers/base/property.c +++ b/drivers/base/property.c @@ -1163,7 +1163,14 @@ fwnode_graph_get_endpoint_by_id(const struct fwnode_handle *fwnode, best_ep_id = fwnode_ep.id; } - return best_ep; + if (best_ep) + return best_ep; + + if (fwnode && !IS_ERR_OR_NULL(fwnode->secondary)) + return fwnode_graph_get_endpoint_by_id(fwnode->secondary, port, + endpoint, flags); + + return NULL; } EXPORT_SYMBOL_GPL(fwnode_graph_get_endpoint_by_id);