On 19/10/2021 21:12, Sam Protsenko wrote: > Krzysztof, do you have by chance the doc for different SoCs supported > by S3C RTC driver? I can implement proper values for min/max range for > each SoC, as Alexandre asked, by adding those to driver data. But I > need max year register value (100, 1000, etc) for each of those chips: > > - "samsung,s3c2410-rtc" > - "samsung,s3c2416-rtc" > - "samsung,s3c2443-rtc" > - "samsung,s3c6410-rtc" > - "samsung,exynos3250-rtc" > > For example Exynos850 TRM states that BCDYEAR register has [11:0] bits > for holding the year value in BCD format, so it's 10^(12/4)=1000 years > max. > I think all S3C chips have only 8-bit wide year, so 2000-2099, while S5Pv210 and Exynos has 12-bit (1000 years). However I doubt there is big benefit of supporting more than 2100. :) If you still want, you would need to create the patch carefully because not many people can test it... Best regards, Krzysztof
