From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 4D7DF3F44CD; Thu, 3 Sep 2026 06:41:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788417691; cv=none; b=jsKvyMPU+rzI8PfHFJOaOGjt8RAkF0BwQcsRl60E2aT7hclFNb5d3kq1Hox2JoWfC+8JBp9WpYL0hAdBo23qcQbaVqzhvaK4R09ofWsaGfBMS3HXLUUle995yet4gonM3WYJNqot2PFxY4P6NItkrPRC+dpI0rFI8C3YbODKhhw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788417691; c=relaxed/simple; bh=7GxDPpxCFoi/zD06jpD4gdECRwZHaLkRj3vxwB1a7xw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=AAbK5Yic/3fAKVgSUZHtvYSOzxMibLG/d65VAi+irHS5uIlR1pjZZn4tXkJkmQJ3nCM7bCoX5JIOvc9Ul5rJyqWLNO9gKQINQ0SjBZYpIMwe8GBV44e/iOy6VgjrD0lORpfNvW7HaYLD4b37aylxN85LovsEvkQ5VWYwduB/yRE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bEtuke5g; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="bEtuke5g" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2AD771F00A3A; Thu, 3 Sep 2026 06:41:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788417685; bh=4QSeOmomxfLkXiHY928g9Cb/0fnESd4LICWyT6M5V/k=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=bEtuke5gdgutAmLFNiepWZuhRylUA+fY7PE4kQ8mUfQa7OuajPFZ/TAo6+4N0baca swrDnozTsxdrmTQnNfj/kY/90FuZ+faIjv0V/8KmcbkwJ0fxLo6ndqv3BIRmvTkLGg XQH4M58X5L4/uaKqBQxuoW05RbFz4qMfzXQoMqf7teEDDcM2f0rmKlRdPIvugqNoNN 9d7EBKqVqFFRCQQuvMWP9efsW20tRdu33PkkJa7f8z2HdSoAHfPpIyiAlPydMfSbRN f1U95kp/lCAYVdRQRm5d+f3fHnvQeRwiDlJVJ+r8z6Ieb80BPi2qIy3vzzaI0BqM73 TU8eK8D1Aum8g== Message-ID: <3574212b-1a4b-486a-97df-1d6ae7895097@kernel.org> Date: Thu, 3 Sep 2026 08:41:18 +0200 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] dt-bindings: usb: qcom,snps-dwc3: Fix glymur binding for non-MP controllers To: Konrad Dybcio , Krishna Kurapati Cc: Greg Kroah-Hartman , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Wesley Cheng , linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260828081542.52796-1-krishna.kurapati@oss.qualcomm.com> <20260831-messy-ebony-warthog-cfd727@quoll> <6af2e860-ba7a-4f86-a0e7-872a312b47e4@oss.qualcomm.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 02/09/2026 16:10, Konrad Dybcio wrote: > On 8/31/26 2:29 PM, Krzysztof Kozlowski wrote: >> On 31/08/2026 11:03, Krishna Kurapati wrote: >>> >>> >>> On 8/31/2026 2:07 PM, Krzysztof Kozlowski wrote: >>>> On Fri, Aug 28, 2026 at 01:45:42PM +0530, Krishna Kurapati wrote: >>>>> Currently for Glymur non-multiport USB controllers, number of interrupts >>>>> are limited to a maximum of "5". Either hs_phy_irq or ss_phy_irq are to be >>>>> present. > > [...] > >>>>> - qcom,eliza-dwc3 >>>>> + - qcom,glymur-dwc3 >>>>> - qcom,ipq4019-dwc3 >>>>> - qcom,ipq8064-dwc3 >>>>> - qcom,kaanapali-dwc3 >>>> >>>> This changes the ABI without an explanation. >>>> >>> As per the harware specification, the controllers do have both >>> hs_phy_irq and ss_phy_irq. Hence wanted the binding to capture that >>> info. Will update the commit message accordingly. >>> >> >> So the change in 99df63d20dabda8d7ae01bcca7cdb1e92110a555 was >> incomplete? Lack of context here is not helping. >> >> If they have these IRQs but it does not matter, then it is not a good >> reason to change ABI and you should just add the clock as optional to >> the end. Was this binding already released? I think yes. > > IIUC the intent of the patch is to allow specifying the currently > missing hs_phy_irq on non-multiport controllers (i.e. usb3_[012]). > Bundling the DT change would have made that easier. This does not answer my concerns. So repeating: patch is changing ABI without an explanation. This means contributor needs to provide explanation for the ABI change in terms of actual impact. Best regards, Krzysztof