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From: Samuel Holland <samuel@sholland.org>
To: Hans de Goede <hdegoede@redhat.com>,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Chen-Yu Tsai <wens@csie.org>,
	linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-sunxi@googlegroups.com
Subject: Re: [PATCH 3/3] Input: axp20x-pek - Enable wakeup for all AXP variants
Date: Tue, 14 Jan 2020 22:45:10 -0600	[thread overview]
Message-ID: <5fe8673b-99d7-c8ca-8457-503cb7f8adb3@sholland.org> (raw)
In-Reply-To: <df608e7c-a0bd-5077-c8e4-db661353e076@redhat.com>

Hi,

On 1/14/20 3:07 AM, Hans de Goede wrote:
> Hi,
> 
> On 13-01-2020 22:26, Dmitry Torokhov wrote:
>> Hi Samuel,
>>
>> On Sun, Jan 12, 2020 at 09:20:32PM -0600, Samuel Holland wrote:
>>> There are many devices, including several mobile battery-powered
>>> devices, using other AXP variants as their PMIC. Enable them to use
>>> the power key as a wakeup source.
>>
>> Are these X86 or ARM devices? If anything, I'd prefer individual drivers
>> not declare themselves as wakeup sources unconditionally. With devic
>> etree we have standard "wakeup-source" property, but I am not quite sure
>> what's the latest on X86...

Currently wakeup is unconditional. After patch 2, even though it's enabled by
default, the wakeup source can be disabled by userspace:

-		enable_irq_wake(axp20x_pek->irq_dbr);
+		device_init_wakeup(&pdev->dev, true);

This is a platform driver for an MFD cell. It does not have its own device tree
node.

(I see a lot of drivers in drivers/input/misc that generate KEY_POWER, and zero
of them reference "wakeup-source". It's a driver for a power button. Being a
wakeup source is half the purpose of its existence.)

> The AXP288 variant is X86, the other PMIC models are for ARM
> (to the best of my knowledge).

That's also my understanding.

> Regards,
> 
> Hans

Regards,
Samuel

  reply	other threads:[~2020-01-15  4:45 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-13  3:20 [PATCH 1/3] Input: axp20x-pek - Remove unique wakeup event handling Samuel Holland
2020-01-13  3:20 ` [PATCH 2/3] Input: axp20x-pek - Respect userspace wakeup configuration Samuel Holland
2020-01-13  4:47   ` kbuild test robot
2020-01-13 10:48   ` Hans de Goede
2020-01-13 21:38     ` Dmitry Torokhov
2020-01-14  4:50   ` kbuild test robot
2020-01-13  3:20 ` [PATCH 3/3] Input: axp20x-pek - Enable wakeup for all AXP variants Samuel Holland
2020-01-13 10:48   ` Hans de Goede
2020-01-13 21:26   ` Dmitry Torokhov
2020-01-14  9:07     ` Hans de Goede
2020-01-15  4:45       ` Samuel Holland [this message]
2020-01-13 10:41 ` [PATCH 1/3] Input: axp20x-pek - Remove unique wakeup event handling Hans de Goede
2020-01-13 10:58   ` Hans de Goede
2020-01-15  4:29     ` [linux-sunxi] " Samuel Holland

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