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    SubjectRe: [PATCH] 2.6 I2C epson 8564 RTC chip
    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 -
    maintainer of: 2.6 PCMCIA -
    2.6 Serial core
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