Hi Heiner, On Wed, 15 Nov 2023 12:00:18 +0100, Heiner Kallweit wrote: > After thinking once more about it I think we have to do it from the > ee1004 driver for DDR4. For DDR3 from at24. Only this way we can read > the "temp sensor present" flag from SPD. E.g. for ee1004 the SPD EEPROM > may be switched to the second page and we have to switch it to the first > page first. We indeed need to read the EEPROM data at some point. My initial thinking was to instantiate the at24 or ee1004 device first (from i2c-smbus), then read the value from the EEPROM and instantiate the jc42 device (still from i2c-smbus). This requires an internal read function. I think we already have that in at24, because it uses the nvmem framework, but ee1004 lacks it as far as I can see. But anyway, if you have another approach which works, that's equally fine with me. > I'll send a RFC patch for this. Unfortunately I have no RAM with temp > sensor to test it. Neither do I :-( -- Jean Delvare SUSE L3 Support
