On Thu, Oct 3, 2024, at 14:04, Geert Uytterhoeven wrote: > R-Car Gen4 SoCs contain fuses indicating hardware support or hardware > (e.g. tuning) parameters. Add a driver to access the state of the > fuses. This supports two types of hardware fuse providers: > 1. E-FUSE non-volatile memory accessible through the Pin Function > Controller on R-Car V3U and S4-8, > 2. E-FUSE non-volatile memory accessible through OTP_MEM on R-Car V4H > and V4M. > > The state of the cells can be read using the NVMEM framework, either > from kernel space (e.g. by the Renesas UFSHCD driver), or from > userspace. > > Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> > Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
