Re: [PATCH v1 1/2] x86/rtc: Add option to skip using RTC

[Andy Shevchenko]

On Thu, Aug 22, 2019 at 05:26:33PM +0800, Tanwar, Rahul wrote:
> On 22/8/2019 5:02 PM, Andy Shevchenko wrote:
> > On Thu, Aug 22, 2019 at 03:44:03PM +0800, Rahul Tanwar wrote:
> > > Use a newly introduced optional "status" property of "motorola,mc146818"
> > > compatible DT node to determine if RTC is supported. Skip read/write from
> > > RTC device only when this node is present and status is "disabled". In all
> > > other cases, proceed as before.
> > Can't we rather update ->get_wallclock() and ->set_wallclock() based on this?
> 
> 
> get_wallclock() and set_wallclock() are function pointers of platform_ops
> 
> which are initialized to mach_get_cmos_time() and mach_set_rtc_mmss()
> 
> at init time. Since adding a new platform to override these functions is
> 
> discouraged, so the only way is to modify RTC get/set functions.

Shouldn't it be platform agnostic code?
So, my point is, instead of hacking two functions, perhaps better to avoid them
at all.


-- 
With Best Regards,
Andy Shevchenko