Messages in this thread | | | From | Andy Shevchenko <> | Date | Fri, 19 Aug 2022 12:58:14 +0300 | Subject | Re: [PATCH v1 1/3] hwmon: (pwm-fan) Make use of device properties |
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On Fri, Aug 19, 2022 at 12:56 PM Andy Shevchenko <andy.shevchenko@gmail.com> wrote: > On Fri, Aug 19, 2022 at 2:41 AM Guenter Roeck <linux@roeck-us.net> wrote: > > On Sat, Aug 06, 2022 at 06:25:15PM +0300, Andy Shevchenko wrote: > > > Convert the module to be property provider agnostic and allow > > > it to be used on non-OF platforms. > > > > > > Add mod_devicetable.h include. > > > > > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> > > > Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> > > > > I had another look at this patch. A substantial part of the changes > > is because device properties don't support of_property_read_u32_index(), > > reworking the code to use device_property_read_u32_array() instead. > > Sorry, I don't like it, it results in a substantial number of unnecessary > > changes. Device properties should support the equivalent of > > of_property_read_u32_index() instead to simplify conversions. > > Not all (device property) providers can have such API available. Are > you suggesting to > a) alloc memory for entire array; > b) cache one for a given index; > c) free a memory; > d) loop as many times as index op is called. > > Sorry, this is way too far and non-optimal in comparison to the > substantial number of unnecessary changes (two or three small > refactorings?). > > Another way is to provide a pwm-fan-acpi, which will be the copy of > the driver after this patch is applied. I don't think it's a very > bright idea either.
That said, I will split a change for PWM cleaning up series and leave the rest on the hwmon maintainers to reconsider.
-- With Best Regards, Andy Shevchenko
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