Messages in this thread | | | From | Andy Shevchenko <> | Date | Mon, 25 Jul 2022 23:20:55 +0200 | Subject | Re: [PATCH 1/2] iio: st_sensors: Retry ID verification on failure |
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On Sun, Jul 24, 2022 at 6:54 PM Matti Lehtimäki <matti.lehtimaki@gmail.com> wrote: > > Some sensors do not always start fast enough to read a valid ID from > registers at first attempt. Let's retry at most 3 times with short sleep > in between to fix random timing issues.
...
> + for (i = 0; i < VERIFY_ID_RETRY_COUNT; i++) { > + err = regmap_read(sdata->regmap, > + sdata->sensor_settings->wai_addr, &wai); > + > + if (!err && sdata->sensor_settings->wai == wai) > + return 0; > + > + msleep(20);
NIH regmap_read_poll_timeout()
> + }
-- With Best Regards, Andy Shevchenko
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