Re: [PATCH] 2.6 I2C epson 8564 RTC chip

[Russell King]

On Thu, Apr 29, 2004 at 03:40:07PM -0700, Tom Rini wrote:
> A generic one for i2c rtcs or another generic rtc driver?  There's
> already drivers/char/genrtc.c...

genrtc.c lacks several features ARM needs, the big one being wakeup
timers.  It also only provides either (configurable) emulation or no
support of various RTC features, rather than allowing a real RTC to
provide them if it can - and you need to know the details of your RTC
at kernel configuration time.

It provides no support for translating "RTC" time into seconds and
vice versa which is needed for second-counter based RTCs found in
PXA, StrongARM, and other ARM SoC platforms.

IOW, its fairly restrictive in what it provides and what it allows
architectures to provide.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:  2.6 PCMCIA      - http://pcmcia.arm.linux.org.uk/
                 2.6 Serial core
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