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Tue, 11 Aug 2026 02:48:46 -0700 (PDT) Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 Date: Tue, 11 Aug 2026 11:48:45 +0200 Message-Id: Cc: "Jonathan Cameron" , "David Lechner" , =?utf-8?q?Nuno_S=C3=A1?= , "Andy Shevchenko" , , Subject: Re: [PATCH] iio: flow: slf3s: restart measurement if VDD disable fails From: "Wadim Mueller" To: "Maxwell Doose" , "Linmao Li" X-Mailer: aerc 0.17.0 References: <20260805110255.504576-1-lilinmao@kylinos.cn> In-Reply-To: On Tue Aug 11, 2026 at 2:24 AM CEST, Maxwell Doose wrote: > On Wed Aug 5, 2026 at 9:21 PM CDT > Linmao Li wrote: > > > > > One thing I noticed while doing this, not specific to my patch: the > > datasheets for all three supported variants say that after the stop > > command the sensor "needs up to 0.5 ms to power down the heater, enter > > idle mode and be receptive for a new command".=C2=A0 probe() and > > slf3s_set_medium() both send the next command right away, and my > > rollback can too.=C2=A0 Is that something you have had to care about in > > > > practice? > > > > Perhaps something that would be good to test on actual hardware to see > if it matters. Maybe Wadim can check? However in all of the (very very > basic) drivers I've written I've tried my best to account for hardware > delays so I would do some more research into this. > > thanks, > max It's definitely a missing piece. I haven't observed any issues with the current implementation, but the required timing should still be respected. I'll add the delay in a follow-up patch. Thanks, Wadim