On 12/07/2016 at 18:27:12 +0100, Ben Dooks wrote : > On 12/07/16 18:22, Alexandre Belloni wrote: > > Hi, > > > > Very few comments below > > > > On 05/07/2016 at 20:48:41 +0100, Ben Dooks wrote : > >> +/* registers accessed from cpu bus */ > >> +#define RTC_REG(x) ((x) * 4) /* rtc registers 0-4 */ > >> + > >> +#define LINE_SDI (1 << 2) > >> +#define LINE_SEN (1 << 1) > >> +#define LINE_SCLK (1 << 0) > > > > Maybe use BIT() here. > > I'll sort that out later. > > >> +/* RTC interface layer functions */ > >> + > >> +static int meson_rtc_gettime(struct device *dev, struct rtc_time *tm) > >> +{ > >> + struct meson_rtc *rtc = dev_get_drvdata(dev); > >> + int ret; > >> + u32 time; > >> + > >> + mutex_lock(&rtc->lock); > >> + > >> + ret = meson_rtc_read(rtc, RTC_COUNTER, &time); > >> + if (!ret) { > >> + rtc_time_to_tm(time, tm); > > > > Can you use the 64bit version? > > What would the 64bit version gain? The hardware register is 32bit. > Well, at some point, I'll remove the 32bit version: http://lxr.free-electrons.com/source/include/linux/rtc.h#L36 -- Alexandre Belloni, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html