linux-kernel - Re: [PATCH 01/12] irqdomain: add bus token DOMAIN_BUS

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Message-ID: <5dcef2f5.1c69fb81.ccbc2.1a7e@mx.google.com>
Date:   Fri, 15 Nov 2019 10:48:20 -0800
From:   Stephen Boyd <swboyd@...omium.org>
To:     Lina Iyer <ilina@...eaurora.org>, bjorn.andersson@...aro.org,
        linus.walleij@...aro.org, maz@...nel.org
Cc:     evgreen@...omium.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, mkshah@...eaurora.org,
        linux-gpio@...r.kernel.org, agross@...nel.org,
        dianders@...omium.org, Lina Iyer <ilina@...eaurora.org>
Subject: Re: [PATCH 01/12] irqdomain: add bus token DOMAIN_BUS_WAKEUP

Quoting Lina Iyer (2019-11-14 10:35:10)
> A single controller can handle normal interrupts and wake-up interrupts
> independently, with a different numbering space. It is thus crucial to
> allow the driver for such a controller discriminate between the two.
> 
> A simple way to do so is to tag the wake-up irqdomain with a "bus token"
> that indicates the wake-up domain. This slightly abuses the notion of
> bus, but also radically simplifies the design of such a driver. Between
> two evils, we choose the least damaging.
> 
> Suggested-by: Stephen Boyd <swboyd@...omium.org>
> Signed-off-by: Lina Iyer <ilina@...eaurora.org>
> ---

Reviewed-by: Stephen Boyd <swboyd@...omium.org>