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Thu, 03 Sep 2026 01:12:00 -0700 (PDT) X-Received: by 2002:a17:90b:2c87:b0:398:ceef:edde with SMTP id 98e67ed59e1d1-39b133026e6mr1762152a91.15.1788423120264; Thu, 03 Sep 2026 01:12:00 -0700 (PDT) Received: from [10.92.216.81] ([202.46.23.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-39b0875e5e9sm4332855a91.14.2026.09.03.01.11.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 03 Sep 2026 01:11:59 -0700 (PDT) Message-ID: <80f21ab6-3d4e-445a-b156-7326b0e92998@oss.qualcomm.com> Date: Thu, 3 Sep 2026 13:41:54 +0530 Precedence: bulk X-Mailing-List: linux-kernel@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: Krzysztof Kozlowski , Konrad Dybcio 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> <3574212b-1a4b-486a-97df-1d6ae7895097@kernel.org> Content-Language: en-US From: Krishna Kurapati In-Reply-To: <3574212b-1a4b-486a-97df-1d6ae7895097@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTAzMDA3MiBTYWx0ZWRfX87LpRXr4VRSk x4mrYrnZlNoO8RUOb3PXPQZpxeW+Utb79AuHsqgVAUo/htZQq000BGADajxkjX+nB9vbhe9F2p8 2zBwffuaRH8bahSEC23JJOUF7AB1cNl6QQU8N00kDgpLVEgysNnlPXrqvcZ4akYOmzTm+L5PLm0 FdSRyDUV5NNlw+7I8vg5pzh/fNfr+bqkUcD0bVbYN/sTZYzEMwqYtq7Xh8yq3iq9j6ccRfCYK4C 4til0PzFJBKpET7OiecSg3Jr8c20Rw+C0Ve7tLcIwJ7xAzgp9BUJFxaR1fX9Zdu5t4N7UPSXLER IE52hS/IfQO2klTljg0lhRwZHEkhjcpmzo6M/ZKV4B8mxJyx5aCLpUPs1FbTEDBXLo0P1SPi0JX ScS1u3n4A5PPG1n/RNo6mjcpyx6wCjfIFJ9m/R1RIYDHSNrF+15IbTzdKXxXX4h3fwuhgMrC0vT GqqQSwo/jZ/TCQXZUSg== X-Proofpoint-Spam-Info: AW1haW4tMjYwOTAzMDA3MiBTYWx0ZWRfX+wGrcXKuWbm7 RTROiLIaBdWjMv8F1QTnM/Qf6morEWvtI89CRjc8WXjHW3F6fYOvLoy2OpeOYc+pll3Q3g+8Nb7 8N1g/8mhIKSjsbqDINueGPtLY+M+iVM= X-Proofpoint-GUID: OlcPSfvwKSoUQMuTHlbeET80r6L-zHOM X-Proofpoint-ORIG-GUID: OlcPSfvwKSoUQMuTHlbeET80r6L-zHOM X-Authority-Analysis: v=2.4 cv=LZ4MLDfi c=1 sm=1 tr=0 ts=6a992bd1 cx=c_pps a=Qgeoaf8Lrialg5Z894R3/Q==:117 a=j4ogTh8yFefVWWEFDRgCtg==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=hQxA1nNTofH2dBn-U5oA:9 a=QEXdDO2ut3YA:10 a=x9snwWr2DeNwDh03kgHS:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-03_02,2026-09-02_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 spamscore=0 lowpriorityscore=0 adultscore=0 clxscore=1015 bulkscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609030072 On 9/3/2026 12:11 PM, Krzysztof Kozlowski wrote: > 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. > From a functional standpoint, there would be no effect. I was trying to make the bindings reflect that the hardware has hs_phy_irq. Regards, Krishna,