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Thu, 03 Sep 2026 02:16:25 -0700 (PDT) X-Received: by 2002:a05:620a:1729:b0:939:48c8:656 with SMTP id af79cd13be357-93960cc57ecmr824989485a.1.1788426984928; Thu, 03 Sep 2026 02:16:24 -0700 (PDT) Received: from [192.168.202.12] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c25f41ebab0sm71905466b.47.2026.09.03.02.16.21 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 03 Sep 2026 02:16:24 -0700 (PDT) Message-ID: <182336df-b505-4ae4-901f-e09c0eae80ed@oss.qualcomm.com> Date: Thu, 3 Sep 2026 11:16:20 +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 v2 01/16] arm64: dts: qcom: x1-crd: Mark the EC reset gpio as reserved To: Abel Vesa Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Rajendra Nayak , Abel Vesa , Sibi Sankar , Marc Zyngier , Aleksandrs Vinarskis , Konstantin Shabanov , Srinivas Kandagatla , Ettore Chimenti , Georg Gottleuber , Xilin Wu , Bryan O'Donoghue , Val Packett , Laurentiu Tudor , Jens Glathe , Dale Whinham , =?UTF-8?Q?J=C3=A9r=C3=B4me_de_Bretagne?= , Harrison Vanderbyl , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio References: <20260901-dts-qcom-hamoa-reserve-ec-reset-gpio-v2-0-f4ab7e4bb75d@oss.qualcomm.com> <20260901-dts-qcom-hamoa-reserve-ec-reset-gpio-v2-1-f4ab7e4bb75d@oss.qualcomm.com> <3f26bf2d-19de-4cc3-8af2-c26601da2576@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=YcmNIQRf c=1 sm=1 tr=0 ts=6a993aea cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=QOIhewo_p7yaGBQ4SdoA:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTAzMDA4MCBTYWx0ZWRfXzpbkvik7vGTr M35AlUBc6b5nZBhSr/ZsoP7wZOCFaC3bsVi1JR85Uo2rHGQDifD4xz9j8laRJ+yrzsoQqYRziH6 +ptTQZH5qmKGtU8ew58k4RlWTKeeTs0= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTAzMDA4MCBTYWx0ZWRfX7mGTDsCyBtWW 14F48PIKd+2L0AmGBeizPOdtV7hEOEhjftTX/EyAlGf/HFjtC6y3t50u5K/lDL6fyIkkgiKiVaC 7dJiGbAjM8Q2qDtvRaKVtyxgF5zl6ghUrYf1nMaNQE5JFWRbNIrPVXft+as0WaK2O1HlKrdSnOS ymj5GXsYAdmXUfSwMs0qT0GzA7WrqnjzFPoGq9u5uHBriAFNbnz+RfmbBMspiKKJKbwRSA4RqlS SF5EoSibQJw6j7Mz4r3kyldd/n34p9+HU8DQQSgRNxRhhYQNfXKkEq1+0rTQNmYzxh5ZOhrb3K3 4o3orHmruI+PcPcmrie8SlhQFuQ3OHA4rMFcuLB+97C+HMyuy/Z1qTMbcXPVbcGygyOreL7Zwrk TLRGIYCwQJMFSOzlgQadGOF8rKBdfZnR+MkS6pkHCCcv5C4yA+jB8Gsoa7CSy72ll4DtN0Yt0Cw VWRQ72fJNC7IgE+3YmA== X-Proofpoint-GUID: XDaENlZKZH3jrGNQ2Cl3AgseJjUX0obW X-Proofpoint-ORIG-GUID: XDaENlZKZH3jrGNQ2Cl3AgseJjUX0obW 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_02,2026-09-03_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 malwarescore=0 priorityscore=1501 lowpriorityscore=0 adultscore=0 phishscore=0 impostorscore=0 spamscore=0 suspectscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609030080 On 9/3/26 10:34 AM, Abel Vesa wrote: > On 26-09-02 17:53:23, Konrad Dybcio wrote: >> On 9/1/26 10:06 AM, Abel Vesa wrote: >>> GPIO 65 from TLMM is used by the embedded controller as its reset line. >>> >>> On some devices, toggling the embedded controller reset line makes the >>> device not power up at all, unless the battery is unplugged. >> >> Have you confirmed that behavior on the CRD? > > Toggling it does nothing observable. > > However, the documentation says this GPIO is actually tied to EC reset. > > I still think we should reserve it, just to be safe. > > What do you think? I believe that contradicts the reasoning you gave in the commit message then.. Konrad