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Message-ID: <bbe470eaeeb17624444b37dbe35b0883193e475b.camel@toradex.com>
Date:   Wed, 8 Feb 2023 15:06:28 +0000
From:   Marcel Ziswiler <marcel.ziswiler@...adex.com>
To:     "alexandre.belloni@...tlin.com" <alexandre.belloni@...tlin.com>
CC:     "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "a.zummo@...ertech.it" <a.zummo@...ertech.it>,
        "festevam@...il.com" <festevam@...il.com>,
        "linux-rtc@...r.kernel.org" <linux-rtc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "linux-imx@....com" <linux-imx@....com>
Subject: [REGRESSION] rtc: imx-sc: remove .read_alarm

Hi Alexandre

Were you aware that this breaks the sysfs use case? E.g. before we were able to suspend and resume 10 seconds
later as follows:

echo +10 > /sys/class/rtc/rtc1/wakealarm; echo mem > /sys/power/state

Since the removal of .read_alarm in commit 7942121b8ca0 ("rtc: imx-sc: remove .read_alarm") this no longer
seems to work.

This seems like a regression or is this not supposed to work?

Thanks for clarifying.

Cheers

Marcel

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