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 2BE863AE1A0; Thu, 9 Apr 2026 12:11:35 +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=1775736695; cv=none; b=YYHL91b8IhjbunaAjDE4xkFKCKIJ80mO1skwQ+JvrqVRZ0nvAFEO/e/TQnDzk7YgtIhCn/yZtsSfBy+KYKSJpyRxFccuPOHzvj2cj+A6kglGXguGKwgpBIM2qR1Eac82ZVXJ3vw+9CVDALrDez/2fQavdpaeSP4GCBZAftxzcg8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775736695; c=relaxed/simple; bh=vg2K5b/QJgw/F/TXAd1Em42GBeReYrSLHmx/+lnM+eU=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=XGkRRRd7gc1+eMRLdscf3X5iLWgcBXVZcLkZv7RvlgCZ1vDAlxlhX6QSQoe8OmxhRGagrsm95R1m5GyE4ntVUFNdSwkW84Yve3LBkeqC8J6jBQ/H4fY5+NaQvEEeRR/5I2TXUv2teLEi/J92iWJigZ1lQxm92sHhPGVPSPNGFm8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KL8sN8La; 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="KL8sN8La" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CF2F7C4CEF7; Thu, 9 Apr 2026 12:11:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775736694; bh=vg2K5b/QJgw/F/TXAd1Em42GBeReYrSLHmx/+lnM+eU=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=KL8sN8Laigjs6UP44pTq4xLbjvxZfbjG5cDfuiPEOzJwqrPh0XLfbAmgUQ+pg35sB kYw49x6n6RWhqUltewr60NegJW+uFgQGjDwJJfclpXfUozsLmR1W2NHccXGxGgkeXX AOc9stsUFpumQ+H7Us3rKfnspY1KphL4j3aZW3gG226tSo1tJQFcIf/S+03gfrm/wx 9qR3ZAFR7bhSxnXADjh/1SoJNZ3oTmsroZB33yRgErZmRxlgyuIpZrBpbZOvRzDco0 50EZbdQofm0MRSGxhGocsfa8kaMG3PAHazH1wIqTPT48L3PdknF6xVTWS0iYJbPeg3 7aO61ijMbp6Rw== Message-ID: Date: Thu, 9 Apr 2026 14:11:30 +0200 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 v1 1/2] dt-bindings: i2c: ls2x-i2c: Add clock- related properties To: Hongliang Wang Cc: Binbin Zhou , Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, loongarch@lists.linux.dev References: <20260325011852.19079-1-wanghongliang@loongson.cn> <20260325011852.19079-2-wanghongliang@loongson.cn> <20260325-outstanding-weasel-of-fruition-89db37@quoll> <1b5283d8-294c-86de-c3d8-bf205ac24216@loongson.cn> <0d7dfe5b-5e2d-4850-8922-16eb6bd9bcae@kernel.org> <900dc1a4-66ab-411f-8a32-4c6cf339e8ec@kernel.org> <2388acbc-a927-4727-a23c-5ecd7c33a926@kernel.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 09/04/2026 14:03, Hongliang Wang wrote: > > I have a question, the input clock of i2c controller can be described by > "clocks", > but there is no existing attribute can describe the divisor of the input > clock, > Can I define a new attribute named "clock-div" to describe it in DT > bindings? > or do you have any standard solutions for the divisor problem? Thank you. > You should determine/calculate the divisor in the driver code, depending on clocks and bus frequencies. You don't need a property for that, usually. Best regards, Krzysztof