linux-kernel - rtc: rtc-m48t59: rtc-m48t59.0: IRQ index 0 not found

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Message-ID: <YEiXHjIrXfjkrv5U@Red>
Date:   Wed, 10 Mar 2021 10:53:34 +0100
From:   Corentin Labbe <clabbe.montjoie@...il.com>
To:     a.zummo@...ertech.it, alexandre.belloni@...tlin.com
Cc:     linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: rtc: rtc-m48t59: rtc-m48t59.0: IRQ index 0 not found

Hello

On my SPARC sunblade 100, I got this:
[   13.613727] rtc-m48t59 rtc-m48t59.0: IRQ index 0 not found
[   13.805777] rtc-m48t59 rtc-m48t59.0: registered as rtc0
[   14.385092] rtc-m48t59 rtc-m48t59.0: setting system clock to 2021-03-01T05:34:33 UTC (1614576873)

The IRQ index 0 message is found after 5.5

Testing rtc via hwclock give:
hwclock: ioctl(3, RTC_UIE_ON, 0) to /dev/rtc0 failed: Input/output error
But this hwclock behavior is present also on earlier kernel (tested 4.9.260, 4.19.179 and 4.14.224).

Does this Input/output error is normal ? (I think no)

Regards