Hi, On Fri, Mar 5, 2021 at 8:07 AM Srinivas Kandagatla <srinivas.kandaga...@linaro.org> wrote: > > > If you think it's confusing to change the behavior of the existing > > functions, would you be opposed to me adding a new function like > > nvmem_cell_read_le_u32_or_smaller() (or provide me a better name) that > > would be flexible like this? > > This should be perfectly okay! > may be something like: > > int nvmem_read_variable_cell(struct device *dev, const char *cell_id, > void *buf, size_t sz_min, size_t sz_max); > > It should return number of bytes it read and fail if cell size is less > then sz_min!
The above API isn't really what I want, though. Specifically I want the API to acknowledge that it's a number that is being read. The client just wants a number and any conversion / zero-padding / whatever needs to be abstracted out. The client also doesn't really care how big the cell actually was as long as the data fits, so I wouldn't want to return it. OK, I've come up with a new proposal, so maybe we can continue the conversation there. The API for my new function actually matches exactly with the old cpr_read_efuse() which makes me feel like it's the right way to go... https://lore.kernel.org/r/20210305162546.1.I323dad4343256b48af2be160b84b1e87985cc9be@changeid -Doug
