From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 443D61624C5 for ; Thu, 20 Nov 2025 21:38:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763674688; cv=none; b=uXmsb4fT093Rms6flfqJohdmUR6z1mWpgq5HrPJHOaGJEW8JQ6+To4OGqKg7la4AQsq5LxcocatcDny/C62VLBWeWKZxKKCOwU4iW79fLuCohZQYeBxRjrjxIc6//ED1Xx3rPJeGw22GoZRJ53KA2rSYDkaVZ8vBM+3VJZ28yS8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763674688; c=relaxed/simple; bh=1BDDDcVfQtzBnr9L2D6gF5aeR5iOya1diUp8Au6Msz8=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=Mz0KJEwgzCGZh2ZhgHYlYjrDF6Uz1rfXjziIdCgFHJc79xnREkl5rf2G/GaRWleNI0Isj96rbqVWoYC5ZEPEw90Lp7cp9A9Re8IT5jwuAkp0eYIRiknwPLIZRHGYjvXeiGjyCMSWvTHqehFEqeW80pOHo7wDHErQ2JGu93wF0TA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TEKNWEBv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TEKNWEBv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9663FC4CEF1; Thu, 20 Nov 2025 21:38:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763674687; bh=1BDDDcVfQtzBnr9L2D6gF5aeR5iOya1diUp8Au6Msz8=; h=From:Subject:Date:To:Cc:From; b=TEKNWEBve0Af7iv+D+r2cjg8t39cHgEp/e4h8iGuhn6PEXxAxKOAqVOLUeQuFgs/R AABGkFDCupa5inaB0D3LjwtLEL6FCqq0d9dCL3RoqHyy/yyZATGDY/r6EK74QqnuPs W16eY18FLTHtVgnxk+4cjBydylYhlgJ8SkbuC413ejZqKlWyimMiJ1Wy7szLd+l1wi +we/M9dEHvAwn8lOY7SMajQHtCtR2774deExwCvLx+mpdl/dbsuCv5YsZg1v+p7GaE goah48ru70strcOzI3F1GL48XLUarBBWWLjz5h62cs6XOVS7+PnFJj0SiYTtOE+VFJ Wa7P/jSsVYrWQ== From: "Rob Herring (Arm)" Subject: [PATCH v2 0/3] at91: Remove of_platform_default_populate() calls Date: Thu, 20 Nov 2025 15:37:49 -0600 Message-Id: <20251120-at91-probe-v2-0-8c8592f02e8e@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAC2KH2kC/x3MQQqAIBBA0avIrBN0oMCuEi00x5qNikYE4t2Tl m/xf4NKhanCKhoUerhyigM4CTguG0+S7IcBFc5ao5L2NlrmkhxJVMEdZOzitYMR5EKB33+27b1 /PW8rqFwAAAA= X-Change-ID: 20251120-at91-probe-20fbce9a6d1b To: Miquel Raynal , Richard Weinberger , Vignesh Raghavendra , Nicolas Ferre , Alexandre Belloni , Claudiu Beznea , Russell King Cc: linux-mtd@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org X-Mailer: b4 0.15-dev This is another attempt at removing of_platform_default_populate() calls on at91 platforms. The last attempts were in 2018[1] and 2023[2]. The problems reported are PM and NAND failures. Both of these depend on SRAM pool which doesn't have any fw_devlink tracking. Also, the PM code is not a driver, so fw_devlink wouldn't help. For the NAND driver, we can simply defer probe. For the PM init, we can move it to the .late_init hook. Rob [1] https://lore.kernel.org/all/20180712192222.32481-1-robh@kernel.org/ [2] https://lore.kernel.org/all/3908fa6f-dc33-4aac-c21f-4a676a3a6b23@microchip.com/ Signed-off-by: Rob Herring (Arm) --- Rob Herring (1): ARM: at91: Move PM init functions to .init_late hook Rob Herring (Arm) (2): mtd: nand: atmel: Defer probe if SRAM is missing ARM: at91: remove unnecessary of_platform_default_populate calls arch/arm/mach-at91/at91rm9200.c | 12 +----------- arch/arm/mach-at91/at91sam9.c | 12 +----------- arch/arm/mach-at91/sam9x60.c | 12 +----------- arch/arm/mach-at91/sam9x7.c | 12 +----------- arch/arm/mach-at91/sama5.c | 21 +++------------------ arch/arm/mach-at91/sama7.c | 11 +---------- drivers/mtd/nand/raw/atmel/nand-controller.c | 2 +- 7 files changed, 9 insertions(+), 73 deletions(-) --- base-commit: 3a8660878839faadb4f1a6dd72c3179c1df56787 change-id: 20251120-at91-probe-20fbce9a6d1b Best regards, -- Rob Herring (Arm)