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([2600:8803:e7e4:500:ebef:9550:d591:36ac]) by smtp.gmail.com with ESMTPSA id 46e09a7af769-7f1df59d551sm2746912a34.20.2026.08.05.05.59.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 05 Aug 2026 05:59:59 -0700 (PDT) Message-ID: <1ed98f0e-04dd-4cbc-ab08-96d076e77da0@baylibre.com> Date: Wed, 5 Aug 2026 07:59:58 -0500 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] iio: flow: slf3s: restart measurement if VDD disable fails To: Linmao Li , Jonathan Cameron Cc: Wadim Mueller , Maxwell Doose , =?UTF-8?Q?Nuno_S=C3=A1?= , Andy Shevchenko , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260805110255.504576-1-lilinmao@kylinos.cn> Content-Language: en-US From: David Lechner In-Reply-To: <20260805110255.504576-1-lilinmao@kylinos.cn> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 8/5/26 6:02 AM, Linmao Li wrote: > slf3s_suspend() stops continuous measurement before disabling VDD. If > regulator_disable() fails while the supply remains enabled, the system > sleep transition is aborted. Since the PM core does not call the > corresponding resume callback for a device whose suspend callback failed, > the sensor remains idle after the system returns to the running state and > subsequent reads fail. > Was this observed to happen on real hardware or was this just deduced through code analysis?