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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-5d806fed4d5sm5168660a12.65.2024.12.23.06.39.36 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 23 Dec 2024 06:39:37 -0800 (PST) Message-ID: Date: Mon, 23 Dec 2024 15:39:36 +0100 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 v3 00/19] Disable USB U1/U2 entry for QC targets To: Prashanth K , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Krishna Kurapati Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, cros-qcom-dts-watchers@chromium.org References: <20241218102707.76272-1-quic_prashk@quicinc.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20241218102707.76272-1-quic_prashk@quicinc.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: mBW2U8PM0MCcXVXIu0czj9HdgFjha_N6 X-Proofpoint-GUID: mBW2U8PM0MCcXVXIu0czj9HdgFjha_N6 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 mlxlogscore=353 clxscore=1015 mlxscore=0 lowpriorityscore=0 impostorscore=0 suspectscore=0 priorityscore=1501 malwarescore=0 spamscore=0 bulkscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2411120000 definitions=main-2412230132 On 18.12.2024 11:26 AM, Prashanth K wrote: > Enabling U1 and U2 power-saving states can lead to stability and > performance issues, particularly for latency-sensitive or high- > throughput applications. These low-power link states are intended > to reduce power consumption by allowing the device to enter partial > low-power modes during idle periods. However, they can sometimes > result in unexpected behavior. Over the years, some of the issues > seen are as follows: For the series: Reviewed-by: Konrad Dybcio Konrad