On Tue, Sep 29, 2020 at 11:23:03AM -0600, Theo de Raadt wrote: > + if (strcmp(ia->ia_name, "st,m41t83") == 0) > > fine with me. But in that case, why not call the driver i2c/m41t83.c
Because it's a series of chips, like m41t80, m41t81, m41t82. Machines and their device trees encode the specific chip, because some versions might have a different feature set as others. We do the same x-place- holder-notation for other drivers as well. For now I only match on st,m41t83 since that is the version of the chip the driver was originally written for. For every additional supported variant of that series, the code needs to be checked for correctness. But the file is still supposed to cover more than this one specific variant of the series.
