From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f51.google.com (mail-ed1-f51.google.com [209.85.208.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EA28810E9 for ; Fri, 16 May 2025 13:49:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.51 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747403394; cv=none; b=sz9BHQJD4k07Ulg3/FEQF1OnSjW1prHI/xdCOlXtaJcC/xZ9zovkz/UZyTRnmALd3bKAP90haGtNrT0QHF1fur5NchdL3h1eJi3v0ob7Ouny6uNf2TSizwPXkhhrelwG6a7no9Cb47lKHlaXMlY05wFExHMzbbO3SjV1IOV4CmQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747403394; c=relaxed/simple; bh=Nie+wA2lEKwH2I614ELhqO2d8Vq+8E2sjK5/V77zdAE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=rqqOXQND24nQjQXflY6Sc3Uif8jQ6RPimgkmNmVP7htyI/fmPj4gRq/jCViTDIfmE1s4lwzQ9rPXKKCbFaOTD3Z2JM49rCw5QBO/9VWzEvXC3csG31aEJiJ9eRmOIRxjIZ4Z1DV0Z/kbfzGLRTSrLUhKFnDJpWZW3xy5ebOn6yw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=amarulasolutions.com; spf=pass smtp.mailfrom=amarulasolutions.com; dkim=pass (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b=KTPjnA+b; arc=none smtp.client-ip=209.85.208.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=amarulasolutions.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=amarulasolutions.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amarulasolutions.com header.i=@amarulasolutions.com header.b="KTPjnA+b" Received: by mail-ed1-f51.google.com with SMTP id 4fb4d7f45d1cf-601968db16bso133716a12.3 for ; Fri, 16 May 2025 06:49:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; t=1747403391; x=1748008191; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=1+uWwuTYRifAYGUlGh3WRUvzHiTmLTWvHkuePmubcIY=; b=KTPjnA+bF2/Q/ezQujB5JOF1TKpjrYvhCdJNfSzyn7G1sCJbG+LRhsmczVGxI6cGHa RxC2uMiIh6oLpFLhMxsEq6tQ/g9opDv9gSHu0n5QxGkjNBeyvnk4D0zxdjdc/bY+y03A ioq+zGV/kTBbPAi4vR0xsjSTASaTMPZd8w32k= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1747403391; x=1748008191; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=1+uWwuTYRifAYGUlGh3WRUvzHiTmLTWvHkuePmubcIY=; b=gOB6uWW4THl9Op9+UBJL0qsdd8PyK0gv+zHZHrhtELwYcvB9QpLGqCGUhqUvSEaqTa owm2+oVey+WYVXqXQo0wiP3MhpfHIP6bYX//j+koQ9C17Wq0U87jec7PdxPDoqDxiTpg 3URglDXsQbMrHvhRB5beKCYS48eG5DkH5fhuaRIdXy4JUBT+s6sPOl4MhrgAsfwXoqcI 9qLgUO30LEjf45tRh5wCo6CRnnGL2eyzEmyjbMWMENq4ed29w+xG05T4I8hjrIKdWkBq Y8uczbVvZ/oAatnDAc7xCcrwdJPRdebq3VM6etUvX/YjzfJzdKm3SA1wA68qUDbfvKEs me+A== X-Forwarded-Encrypted: i=1; AJvYcCW+uEucjR+ZCR0jJ1qNnQeSAKTZHbKe2otk7ivMa07koWl3ZIH05H9sa7Hbm4pOS/TsGkdgiM/GTX0=@vger.kernel.org X-Gm-Message-State: AOJu0YwHMWtgQVHrvfS/GQ9Y7ovxaPa9HYF6C7vRq4+Z5NXgKwsOcZZ7 hCUFG5IDe0xHVqfsdAMlI+bF6LFhRuC7QzdEoaFZugRtsmVavaWse5xshxI01O4Oarg= X-Gm-Gg: ASbGnctQwf48oQLygTCbeVqs9VbqxtRCJZVJBPK7tlMbrMs51r1/xdV7Pcoj6GltB9u RXzUB24fv8zedeuFNSIprzRQk9CtMB4XgtAoCsSnEP6wMT8EosCW8nAl9mKi+vnEw+AlISonDYl x3oVzIH7muAq5qSEoc/at7tmTIIVGeEYbm+Zziyi9GX2mcGJTmv4rrkOA5G6m3UHp5bN63TCVU4 R17Atw0j8VaAskpfjvikjk1vIZ4aG8eAiqY/H53oujDVIhdTOJ7bMxjQM8j8ncmKZmODN16mmHJ UzCQR7iGK+TumWLWgsUVM6TYu1KnUTS80dbg7iBkv2il0A7yt7mXvbpoY0OAS1QYEdZH5e7be84 H2OsLiOrzKW0Ce33VjyW/1/ymTIo= X-Google-Smtp-Source: AGHT+IFoN5V5sXxRw1p11CkmgQLqoxiXH8inT8H8fElyYIKPtuQteQwDowZG6nwQRuFNGWvPp8sSnA== X-Received: by 2002:a05:6402:27d1:b0:5fc:966b:23fa with SMTP id 4fb4d7f45d1cf-6008a39c9b8mr2906162a12.4.1747403391082; Fri, 16 May 2025 06:49:51 -0700 (PDT) Received: from dario-ThinkPad-T14s-Gen-2i.. ([62.19.60.137]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6005a6e6389sm1562951a12.45.2025.05.16.06.49.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 May 2025 06:49:50 -0700 (PDT) From: Dario Binacchi To: linux-kernel@vger.kernel.org Cc: linux-amarula@amarulasolutions.com, Mark Brown , Dario Binacchi , Abel Vesa , Fabio Estevam , Michael Turquette , Peng Fan , Pengutronix Kernel Team , Sascha Hauer , Shawn Guo , Stephen Boyd , imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org Subject: [linux-next, 1/1] clk: imx: imx8mm-anatop: probe only on i.MX8MM platforms Date: Fri, 16 May 2025 15:49:27 +0200 Message-ID: <20250516134945.14692-1-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Commit 9c1e388af87c ("clk: imx: add support for i.MX8MM anatop clock driver") breaks boot on i.MX8M{P,N} platforms. Here's the log for a board based on the i.MX8MP platform: [ 1.439320] i.MX clk 1: register failed with -2 [ 1.441014] i.MX clk 2: register failed with -2 [ 1.445610] imx8mm-anatop 30360000.clock-controller: NXP i.MX8MM anatop clock driver probed [ 1.455068] Unable to handle kernel paging request at virtual address fffffffffffffffe ... [ 1.634650] Call trace: [ 1.637102] __clk_get_hw+0x4/0x18 (P) [ 1.640862] imx8mp_clocks_probe+0xdc/0x2f50 [ 1.645152] platform_probe+0x68/0xc4 [ 1.648827] really_probe+0xbc/0x298 [ 1.652413] __driver_probe_device+0x78/0x12c In the imx8mp.dtsi device tree, the anatop compatible string is: compatible = "fsl,imx8mp-anatop", "fsl,imx8mm-anatop"; So, in configurations like arm64 defconfig, where CONFIG_CLK_IMX8MP and CONFIG_CLK_IMX8MM as well as CONFIG_CLK_IMX8MN are enabled, the driver for the i.MX8MM anatop is incorrectly loaded. The patch fixes the regression by ensuring that the i.MX8MM anatop driver only probes on i.MX8MM platforms. Fixes: 9c1e388af87c ("clk: imx: add support for i.MX8MM anatop clock driver") Signed-off-by: Dario Binacchi --- drivers/clk/imx/clk-imx8mm-anatop.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/clk/imx/clk-imx8mm-anatop.c b/drivers/clk/imx/clk-imx8mm-anatop.c index 4ac870df6370..90ff11a93fe5 100644 --- a/drivers/clk/imx/clk-imx8mm-anatop.c +++ b/drivers/clk/imx/clk-imx8mm-anatop.c @@ -37,6 +37,19 @@ static const char * const clkout_sels[] = {"audio_pll1_out", "audio_pll2_out", " static struct clk_hw_onecell_data *clk_hw_data; static struct clk_hw **hws; +static int is_really_imx8mm(struct device_node *np) +{ + const char *compat; + struct property *p; + + of_property_for_each_string(np, "compatible", p, compat) { + if (strcmp(compat, "fsl,imx8mm-anatop")) + return -EFAULT; + } + + return 0; +} + static int imx8mm_anatop_clocks_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -44,6 +57,10 @@ static int imx8mm_anatop_clocks_probe(struct platform_device *pdev) void __iomem *base; int ret; + ret = is_really_imx8mm(np); + if (ret) + return ret; + base = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(base)) { dev_err(dev, "failed to get base address\n"); -- 2.43.0 base-commit: 8566fc3b96539e3235909d6bdda198e1282beaed branch: fix-imx8mm-probing