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From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: frank-w@public-files.de, barebox@lists.infradead.org
Subject: Re: Driver load order
Date: Thu, 19 May 2022 14:42:10 +0200	[thread overview]
Message-ID: <782b973c-e012-a2c5-11ff-f9bc945f07d6@pengutronix.de> (raw)
In-Reply-To: <1f4f9e12-34f9-6bf2-d15d-1ccf8c7e9329@pengutronix.de>

On 19.05.22 14:17, Ahmad Fatoum wrote:
> Hello Frank,
> 
> On 19.05.22 12:59, Frank Wunderlich wrote:
>> Hi,
>>
>> I try to create a basic driver for rk808 pmic/iodomains. I've noticed that first the iodomain driver is probed and then the rk808 on,but i need it reversed as rk808 registers regulators linked in iodomain via devicetree.
>>
>> How can i defer iodomain probing till rk808 is ready (regulators available defined as phandles in iodomain dt node)? Currently i get always ENODEV (property does not exist or regulator is not ready yet)....
>>
>> This is my current (dirty) source:
>> https://github.com/frank-w/barebox-r2pro/commits/r2pro-iodomain
> 
> While I don't know what iodomains are, I had ported the rk808 driver to barebox for
> use with the Rock Pi N10. I haven't come around to upstream it, because I haven't
> figured out why I can't use the existing regmap helpers like Linux does.
> 
> I have sent you the patches as a reply to your mail. Perhaps they'll
> save you some effort.

I see now that Kconfig/Makefile parts are missing, but I trust you can easily add those.
Also, you'll need this patch: https://lore.barebox.org/barebox/20220114084728.311277-1-a.fatoum@pengutronix.de/
(preferably after incorporating Sascha's feedback).

Cheers,
Ahmad

> 
> Cheers,
> Ahmad
> 
> 
>> regards Frank
>>
>> _______________________________________________
>> barebox mailing list
>> barebox@lists.infradead.org
>> http://lists.infradead.org/mailman/listinfo/barebox
>>
> 
> 


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      reply	other threads:[~2022-05-19 12:43 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-19 10:59 Frank Wunderlich
2022-05-19 11:54 ` Sascha Hauer
2022-05-19 12:43   ` Aw: " Frank Wunderlich
2022-05-19 12:50     ` Ahmad Fatoum
2022-05-19 13:10       ` Sascha Hauer
2022-05-19 17:54         ` Aw: " Frank Wunderlich
2022-05-21 10:31         ` Frank Wunderlich
2022-05-24  8:53           ` Ahmad Fatoum
2022-05-24  9:13             ` Aw: " Frank Wunderlich
2022-05-24  9:21               ` Ahmad Fatoum
2022-05-19 12:10 ` [PATCH 1/2] regmap: implement regmap_init_i2c_smbus Ahmad Fatoum
2022-05-19 12:10   ` [PATCH 2/2] regulator: add Rockchip rk808 support Ahmad Fatoum
2022-05-19 12:17 ` Driver load order Ahmad Fatoum
2022-05-19 12:42   ` Ahmad Fatoum [this message]

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