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=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham 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 19283C35679 for ; Mon, 24 Feb 2020 09:09:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E146F20675 for ; Mon, 24 Feb 2020 09:09:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=cerno.tech header.i=@cerno.tech header.b="wQpjPS5o"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="PxWPwJK+" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727378AbgBXJJE (ORCPT ); Mon, 24 Feb 2020 04:09:04 -0500 Received: from wnew3-smtp.messagingengine.com ([64.147.123.17]:53175 "EHLO wnew3-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727310AbgBXJJC (ORCPT ); Mon, 24 Feb 2020 04:09:02 -0500 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailnew.west.internal (Postfix) with ESMTP id 639685B1; Mon, 24 Feb 2020 04:09:00 -0500 (EST) Received: from mailfrontend2 ([10.202.2.163]) by compute3.internal (MEProxy); Mon, 24 Feb 2020 04:09:01 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cerno.tech; h= from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm2; bh=ni0eeiruakD5t A6ey6vkWb0zJTB9V0JwtVa8ytpvb+8=; b=wQpjPS5o64bYXMBU6+EE9Op3/YeIc tfo5TtyHY5bq33iZ2YyGFRxz/x8v2X+o8hN7/1I5kuq5oKS5fCkdnYshXVk4DIEH Kghhj3Of8Xz7dA5053bJeRsxZhBgzmCivW9g3mwDdbDK10fnLphUIjQzOF0TQhCr f1GA5XoJ07fqsWYWcLCNngtkTWi/tGORSqmedAF1hQc+pqvk9ZfE5TL3NmdU/klO uNFjo7XpA9KxbOQu+uVYvYiz1uyavriatnja6zTGqw4wt5CGY1eFnRNz5BLoTzzC nZLkmSsF3lijIwMmtRrgWmguamGFPrgi2491/T7pQVR+qylKAESFE+Q+Q== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm2; bh=ni0eeiruakD5tA6ey6vkWb0zJTB9V0JwtVa8ytpvb+8=; b=PxWPwJK+ MTU4ejMmDMqCFiwlZ77+637otX7fMeMhvU4B2C1bJqWU1ABnbczcriaK6KLIfKZF jCsHAXSHaUxY0v0dDL8lXdHKVrb9jVK0as9aVN7HfQ3f821XB5U/mC/J/bmb3P+q ngzwUdVjyfWmnex3yMGINFIZL5bHBz8tcQ2vA42z332fCp8C4JWw7pF/o++AUl25 wwKFAPpvuwqhGcmabMaGrGCYNo04PopeKvbZ4Sj+oTMeQW0W9TmLZViZT9x2r1WN 7aN1zKft+nhjxsL+/nIHgPyqpHwapVMkdGOmI6QtV3ysQMvokm/7G6O3nZqvGldz T0jECWYME63pgw== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedugedrledtucetufdoteggodetrfdotffvucfrrh hofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgenuceurghi lhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurh ephffvufffkffojghfggfgsedtkeertdertddtnecuhfhrohhmpeforgigihhmvgcutfhi phgrrhguuceomhgrgihimhgvsegtvghrnhhordhtvggthheqnecukfhppeeltddrkeelrd eikedrjeeinecuvehluhhsthgvrhfuihiivgepudenucfrrghrrghmpehmrghilhhfrhho mhepmhgrgihimhgvsegtvghrnhhordhtvggthh X-ME-Proxy: Received: from localhost (lfbn-tou-1-1502-76.w90-89.abo.wanadoo.fr [90.89.68.76]) by mail.messagingengine.com (Postfix) with ESMTPA id 9ECE73060F9B; Mon, 24 Feb 2020 04:08:59 -0500 (EST) From: Maxime Ripard To: Nicolas Saenz Julienne , Eric Anholt Cc: dri-devel@lists.freedesktop.org, linux-rpi-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Dave Stevenson , Tim Gover , Phil Elwell , Maxime Ripard , Michael Turquette , Stephen Boyd , linux-clk@vger.kernel.org Subject: [PATCH 07/89] clk: bcm: rpi: Allow the driver to be probed by DT Date: Mon, 24 Feb 2020 10:06:09 +0100 Message-Id: X-Mailer: git-send-email 2.24.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The current firmware clock driver for the RaspberryPi can only be probed by manually registering an associated platform_device. While this works fine for cpufreq where the device gets attached a clkdev lookup, it would be tedious to maintain a table of all the devices using one of the clocks exposed by the firmware. Since the DT on the other hand is the perfect place to store those associations, make the firmware clocks driver probe-able through the device tree so that we can represent it as a node. Cc: Michael Turquette Cc: Stephen Boyd Cc: linux-clk@vger.kernel.org Signed-off-by: Maxime Ripard --- drivers/clk/bcm/clk-raspberrypi.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c index 1654fd0eedc9..94870234824c 100644 --- a/drivers/clk/bcm/clk-raspberrypi.c +++ b/drivers/clk/bcm/clk-raspberrypi.c @@ -255,15 +255,13 @@ static int raspberrypi_clk_probe(struct platform_device *pdev) struct raspberrypi_clk *rpi; int ret; - firmware_node = of_find_compatible_node(NULL, NULL, - "raspberrypi,bcm2835-firmware"); + firmware_node = of_parse_phandle(dev->of_node, "raspberrypi,firmware", 0); if (!firmware_node) { dev_err(dev, "Missing firmware node\n"); return -ENOENT; } firmware = rpi_firmware_get(firmware_node); - of_node_put(firmware_node); if (!firmware) return -EPROBE_DEFER; @@ -300,9 +298,16 @@ static int raspberrypi_clk_remove(struct platform_device *pdev) return 0; } +static const struct of_device_id raspberrypi_clk_match[] = { + { .compatible = "raspberrypi,firmware-clocks" }, + { }, +}; +MODULE_DEVICE_TABLE(of, raspberrypi_clk_match); + static struct platform_driver raspberrypi_clk_driver = { .driver = { .name = "raspberrypi-clk", + .of_match_table = raspberrypi_clk_match, }, .probe = raspberrypi_clk_probe, .remove = raspberrypi_clk_remove, -- git-series 0.9.1