linux-kernel - Re: [PATCH 1/1] rtc: cpcap: new rtc driver

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Message-ID: <20170220163155.GH21809@atomide.com>
Date:   Mon, 20 Feb 2017 08:31:56 -0800
From:   Tony Lindgren <tony@...mide.com>
To:     Sebastian Reichel <sre@...nel.org>
Cc:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        rtc-linux@...glegroups.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] rtc: cpcap: new rtc driver

* Sebastian Reichel <sre@...nel.org> [170219 23:37]:
> This driver supports the Motorola CPCAP PMIC found on
> some of Motorola's mobile phones, such as the Droid 4.

Hey that's cool, works for me for reading and setting date :)
Just noticed one thing, see below.

> +Requires node properties:
> +- compatible: should contain "motorola,cpcap-rtc"
> +- interrupts: An interrupt specifier for alarm and 1 Hz irq
> +
> +Example:
> +
> +cpcap_rtc: rtc {
> +	compatible = "motorola,cpcap-rtc";
> +	interrupts = <39 IRQ_TYPE_NONE>, <26 IRQ_TYPE_NONE>;
> +};

I tried rtcwake -s 3, but got the following:

rtcwake: cannot open /sys/class/rtc/rtc0/device/power/wakeup:
No such file or directory
rtcwake: /dev/rtc0 not enabled for wakeup events

Then tried adding "wakeup-source" to above but I think the driver
needs something, maybe probably just PM ops?

Regards,

Tony