linux-kernel - Re: [RFC PATCH 0/6] Support ROHM BD96801 scalable PMIC

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Date: Thu, 4 Apr 2024 13:09:36 +0100
From: Mark Brown <broonie@...nel.org>
To: Matti Vaittinen <mazziesaccount@...il.com>
Cc: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
	Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Wim Van Sebroeck <wim@...ux-watchdog.org>,
	Guenter Roeck <linux@...ck-us.net>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-watchdog@...r.kernel.org
Subject: Re: [RFC PATCH 0/6] Support ROHM BD96801 scalable PMIC

On Thu, Apr 04, 2024 at 10:26:34AM +0300, Matti Vaittinen wrote:

> 1. Should we be able to have more than 1 IRQ domain / device?
> 2. Should regmap_irq support having more than 1 HWIRQ

I would expect each parent interrupt to show up as a separate remap_irq.

> then it seems that reading the IRQ information from the /proc/interrupts
> works as expected. Here I am making a wild guess that the name of the domain
> is used as a key for some data-lookups, and having two domains with a same
> name will either overwrite something or cause wrong domain data to be
> fetched. (This is just guessing for now).

So if we arrange to supply a name when we register multiple domains
things should work fine?

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