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 5C95D30C62B; Mon, 22 Dec 2025 08:16:42 +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=1766391402; cv=none; b=RRLLneOUDX+DoytSvnUz1W6uxMMByNJqvv51C4xZGLWqa+xaAMsQNyBWqI5/QuDOAOCf5LACbShD9/HBlUOqOuXhfHLN0scctslYgGRtoiqpQystHBftlXcPhso+qJNyAHFgLETQbg9ganhxMbXdOALLTfbjLwmFfFpSaid+VZg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1766391402; c=relaxed/simple; bh=HiyaFbB5H/5dXejQQpqIKA+SmWOS8uphrnAWg+OAS94=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=d/O/D5czVsaROZFW8DqBZ933G1q2sbbof6JX7dk/8/raVJw4TXZ198RwQH8a6MuaPvT4hHkVfYCRpEuzKIUiG7Ci1q2Uj4Cm234e2wd9JKsym8bAkUZToGLsBWMV/GfylLpYMpKoViXMlI4oUu/scDKM8WBxq84hU85mJdkNr6c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=hnivuYdt; 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="hnivuYdt" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 206EEC116D0; Mon, 22 Dec 2025 08:16:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1766391401; bh=HiyaFbB5H/5dXejQQpqIKA+SmWOS8uphrnAWg+OAS94=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=hnivuYdtFE4ssm78t9zKS5st0OoBoIFKUvpkY9KadzO/egKKYjMLHnfLsaat4OVZd sXuaJvjde2rrxlVCvKkunClFmvigXFOWzkW0nqZ6jPBIB+5BVdLUKFJItYSP67H3vt pDy2fixKOM5hgjKisnEgCmE3miZ3fq19/Hs9qqajWYHW0m/QBkKuIB8wbBXszHzHKg Ym7LVg8DZ+Lgh2NjG+SdbYynXuu6NPQXm8l2Ls4VQD4+eq+I4/97V7Ruugcw5nwDdh c5nwNeKZYIY/0fsBa/Rt2LnzTWfO+zoPUOrvA5mG0TUa0SZ89SgBCBGZo8LQIUUszj z7/M1O13DGhNw== Message-ID: Date: Mon, 22 Dec 2025 09:16:31 +0100 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/3] dt-bindings: mmc: spacemit,sdhci: add reset support To: Yixun Lan Cc: Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Adrian Hunter , Philipp Zabel , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Iker Pedrosa , linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org References: <20251221-07-k1-sdhci-reset-v1-0-6780af7fa6e7@gentoo.org> <20251221-07-k1-sdhci-reset-v1-1-6780af7fa6e7@gentoo.org> <20251221-unnatural-resilient-trogon-7b20a7@quoll> <20251222021202-GYA1977180@gentoo.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 22/12/2025 03:12, Yixun Lan wrote: >>> required: >>> - compatible >>> - reg >>> - interrupts >>> - clocks >>> - clock-names >>> + - resets >>> + - reset-names >> >> This is an ABI break without mentioning in commit msg and without any >> justification. >> > Indeed, this will introduce a breakage when combining new kernel + old dtb > > Since in current case, the eMMC works fine without reset line operation, > I then would make this property optional (drop it from 'required' section) > and switch to use devm_reset_control_get_optional_xx() API in driver code > > Does this looks good to you? > Yes Best regards, Krzysztof