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From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: Marco Felsch <m.felsch@pengutronix.de>,
	Sascha Hauer <sha@pengutronix.de>
Cc: Oleksij Rempel <linux@rempel-privat.de>,
	Oleksij Rempel <o.rempel@pengutronix.de>,
	Robin van der Gracht <robin@protonic.nl>,
	barebox@lists.infradead.org, david@protonic.nl
Subject: Re: [PATCH 1/9] ARM: boards: protonic-imx6: prtvt7 hardkey inputs are active low
Date: Mon, 20 Jun 2022 09:51:51 +0200	[thread overview]
Message-ID: <ead464cf-803f-5795-4269-7ff4d15cf9ed@pengutronix.de> (raw)
In-Reply-To: <20220617084437.fvfwaxaxxediqm3t@pengutronix.de>

Hello,

On 17.06.22 10:44, Marco Felsch wrote:
> On 22-06-17, Sascha Hauer wrote:
>>> Or, it is active low and your patch is correct :D
>>
>> If they are, can we add a comment or _N suffix to the names?
> 
> Does barebox not have gpiod? The board code just should check if it is
> active or not. Whatever active means in this case.

There is gpiod_get(), but there's also gpio-keys support. See
drivers/input/specialkeys.c for an example on how to register an input
notifier.

Robin, did you test this works with barebox v2022.05.0?
I'd have assumed this to be broken by f349b662674e ("gpio: allocate dynamic
gpio numbers top down"). Especially, with deep probe, you can't and shouldn't
depend on GPIO expanders numbering being fixed. If you use an input notifier,
you should sidestep this issue altogether.

Cheers,
Ahmad

> 
> Regards,
>   Marco
> 
>>
>> Sascha
>>
>> -- 
>> Pengutronix e.K.                           |                             |
>> Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
>> 31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
>> Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |
>>
>>
> 
> 


-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |



  reply	other threads:[~2022-06-20  7:53 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-16 13:11 [PATCH 0/9] ARM: boards: protonic-imx6: Updates Robin van der Gracht
2022-06-16 13:11 ` [PATCH 1/9] ARM: boards: protonic-imx6: prtvt7 hardkey inputs are active low Robin van der Gracht
2022-06-16 16:28   ` Oleksij Rempel
2022-06-16 16:38     ` Oleksij Rempel
2022-06-17  6:57       ` Sascha Hauer
2022-06-17  8:44         ` Marco Felsch
2022-06-20  7:51           ` Ahmad Fatoum [this message]
2022-06-20  8:16             ` Robin van der Gracht
2022-06-20 15:42             ` Robin van der Gracht
2022-06-20  6:48       ` Robin van der Gracht
2022-06-20  7:23         ` Oleksij Rempel
2022-06-16 13:11 ` [PATCH 2/9] ARM: boards: protonic-imx6: Update comment to match a recent code update Robin van der Gracht
2022-06-17  7:00   ` Sascha Hauer
2022-06-20  6:40     ` Robin van der Gracht
2022-06-16 13:11 ` [PATCH 3/9] ARM: boards: protonic-imx6: Free allocated autoboot_timeout string Robin van der Gracht
2022-06-16 13:11 ` [PATCH 4/9] ARM: boards: protonic-imx6: Always free allocated alias string Robin van der Gracht
2022-06-16 13:11 ` [PATCH 5/9] ARM: boards: protonic-imx6: Remove unsused argument from prt_imx6_usb_mount Robin van der Gracht
2022-06-16 13:11 ` [PATCH 6/9] ARM: boards: protonic-imx6: Register prt-usb boot entry Robin van der Gracht
2022-06-16 13:11 ` [PATCH 7/9] ARM: boards: protonic-imx6: Remove usb_delay from the priv struct Robin van der Gracht
2022-06-16 13:11 ` [PATCH 8/9] ARM: boards: protonic-imx6: Read serial and mac from fuses if available Robin van der Gracht
2022-06-16 13:11 ` [PATCH 9/9] ARM: boards: protonic-imx6: Register serial_number parameter with ocotp Robin van der Gracht
2022-06-17  7:10 ` (subset) [PATCH 0/9] ARM: boards: protonic-imx6: Updates Sascha Hauer

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