From patchwork Wed Jul 1 06:21:37 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 11635361 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 2D6D6618 for ; Wed, 1 Jul 2020 06:21:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0C8BA2074D for ; Wed, 1 Jul 2020 06:21:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="fi0aXQP+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727071AbgGAGVy (ORCPT ); Wed, 1 Jul 2020 02:21:54 -0400 Received: from perceval.ideasonboard.com ([213.167.242.64]:57910 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726287AbgGAGVy (ORCPT ); Wed, 1 Jul 2020 02:21:54 -0400 Received: from pendragon.bb.dnainternet.fi (81-175-216-236.bb.dnainternet.fi [81.175.216.236]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id F118455B; Wed, 1 Jul 2020 08:21:51 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1593584512; bh=/+m3Ksh55Q3cNYCFz7Xh4xcWcjcp+zge4slRCex/PDQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fi0aXQP+EX4/FIhBmj2gx0bZQ9pClNeI7Coa7Qfjx5c/kpCB1TxVE1z/BdzrQEX8w XwAXoYfVbkEM0lo/EC0Uj0Rt3aqAcMC741AoEOXBzSfQIFPWjUAzTsepargsO+pwKI E/7n7odtylH0YQnoM4T0D+HCqKkynpZDWzcw2tFI= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org, Sakari Ailus , Jacopo Mondi , =?utf-8?q?Niklas_S=C3=B6derlund?= , Kieran Bingham , Lad Prabhakar , "Rafael J. Wysocki" Subject: [PATCH v4 1/4] device property: Add a function to test is a fwnode is a graph endpoint Date: Wed, 1 Jul 2020 09:21:37 +0300 Message-Id: <20200701062140.12953-2-laurent.pinchart+renesas@ideasonboard.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200701062140.12953-1-laurent.pinchart+renesas@ideasonboard.com> References: <20200701062140.12953-1-laurent.pinchart+renesas@ideasonboard.com> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Drivers may need to test if a fwnode is a graph endpoint. To avoid hand-written solutions that wouldn't work for all fwnode types, add a new fwnode_graph_is_endpoint() function for this purpose. We don't need to wire it up to different backends for OF and ACPI for now, as the implementation can simply be based on checkout the presence of a remote-endpoint property. Signed-off-by: Laurent Pinchart Acked-by: Sakari Ailus Reviewed-by: Niklas Söderlund Reviewed-by: Lad Prabhakar Reviewed-by: Kieran Bingham --- include/linux/property.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/property.h b/include/linux/property.h index 10d03572f52e..9f805c442819 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -389,6 +389,11 @@ struct fwnode_handle * fwnode_graph_get_remote_node(const struct fwnode_handle *fwnode, u32 port, u32 endpoint); +static inline bool fwnode_graph_is_endpoint(struct fwnode_handle *fwnode) +{ + return fwnode_property_present(fwnode, "remote-endpoint"); +} + /* * Fwnode lookup flags *