RTC: Revert UIE emulation removal
Uwe pointed out that my alarm based UIE emulation is not sufficient to replace the older timer/polling based UIE emulation on devices where there is no alarm irq. This causes rtc devices without alarms to return -EINVAL to UIE ioctls. The fix is to re-instate the old timer/polling method for devices without alarm irqs. This patch reverts the following commits: 042620a0 - Remove UIE emulation 1daeddd5 - Cleanup removed UIE emulation declaration b5cc8ca1 - Remove Kconfig symbol for UIE emulation The emulation mode will still need to be wired-in with a following patch before it will work. CC: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> CC: Thomas Gleixner <tglx@linutronix.de> Reported-by:Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by:
John Stultz <john.stultz@linaro.org>
parent
516373b8
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