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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6005a6e019asm1055150a12.36.2025.05.16.02.00.47 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 16 May 2025 02:00:49 -0700 (PDT) Message-ID: Date: Fri, 16 May 2025 11:00:46 +0200 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 2/2] arm64: dts: qcom: sa8775p: Remove max link speed property for PCIe EP To: Neil Armstrong , Mrinmay Sarkar , Vinod Koul , Kishon Vijay Abraham I , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, krishna.chundru@oss.qualcomm.com, quic_vbadigan@quicinc.com, quic_nayiluri@quicinc.com, quic_ramkri@quicinc.com, quic_nitegupt@quicinc.com, Mrinmay Sarkar References: <20250514-update_phy-v2-0-d4f319221474@quicinc.com> <20250514-update_phy-v2-2-d4f319221474@quicinc.com> <8ba99df8-012b-4883-af6a-970dd9f877f6@linaro.org> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <8ba99df8-012b-4883-af6a-970dd9f877f6@linaro.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=M4lNKzws c=1 sm=1 tr=0 ts=6826fec3 cx=c_pps a=oc9J++0uMp73DTRD5QyR2A==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=dt9VzEwgFbYA:10 a=KKAkSRfTAAAA:8 a=EUspDBNiAAAA:8 a=4QkPWBSfZRwaAYBdk_UA:9 a=QEXdDO2ut3YA:10 a=ZXulRonScM0A:10 a=iYH6xdkBrDN1Jqds4HTS:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTE2MDA4NCBTYWx0ZWRfX7YPY2o/fkfrJ RC5qUdsOKGB0wNRxoJaqjbyQU6XC3cyOIwldL3Jk2+Gqu6ugBl0MyPhXzULlgv7ajqo6LXAaaQv GOma7I8uk8PLHUV2REfARICnbDkhRHL4fGc7xMA+dxCXX7AEeW8aJG+lTV3PGWSAXyTc7PpCmWk NsKyGdg/GFhJLhNueFxLcQqFC7fNTCQz8F3rv2PDo7Vd7/YaIK3rIm3UYcUTj7i/T/d/jBf7nj4 nZN+pHeNLJeoIU9v8CvbDigDfEiRGZnC1M1h8ihe1qfKkuVbO6FzyHRP9DMwIrxah8DqUYU/jU2 hw94v5iFepLakU5uOsIE0kOO3wl5zXEg8wHwu5qlTXOjs3qvZ6iEIs4p3nIoZhWkyTqQe/hcnSw 4aZ43VO+ySHwq9/6o56ManLmrpDw/oTCwyABVsxvkbLktLit4/AErW2+k5PWYfjQzfVF3yFh X-Proofpoint-ORIG-GUID: eDiX7nDaOzJIf0GEQjzwcBBGdXqP-2t9 X-Proofpoint-GUID: eDiX7nDaOzJIf0GEQjzwcBBGdXqP-2t9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-16_04,2025-05-15_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1015 impostorscore=0 malwarescore=0 mlxlogscore=959 mlxscore=0 lowpriorityscore=0 phishscore=0 bulkscore=0 adultscore=0 priorityscore=1501 suspectscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505070000 definitions=main-2505160084 On 5/14/25 6:38 PM, neil.armstrong@linaro.org wrote: > On 14/05/2025 13:37, Mrinmay Sarkar wrote: >> From: Mrinmay Sarkar >> >> The maximum link speed was previously restricted to Gen3 due to the >> absence of Gen4 equalization support in the driver. >> >> Add change to remove max link speed property, Since Gen4 equalization >> support has already been added into the driver. > > Which driver, PHY or Controller ? Controller, see 09483959e34d ("PCI: dwc: Add support for configuring lane equalization presets") and commits around it does this change depends on the patch 1 PHY settings update ? That I'm curious about too, but I would guesstimate no Konrad