linux-kernel - Re: [PATCH v2] irqchip/gic-v3: Ignore disabled ITS nodes

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Message-ID: <38dd5843-9290-28b2-8acb-aabb81acf00d@arm.com>
Date:   Thu, 1 Feb 2018 17:23:46 +0000
From:   Marc Zyngier <marc.zyngier@....com>
To:     Stephen Boyd <sboyd@...eaurora.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Stuart Yoder <stuyoder@...il.com>,
        Laurentiu Tudor <laurentiu.tudor@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rajendra Nayak <rnayak@...eaurora.org>
Subject: Re: [PATCH v2] irqchip/gic-v3: Ignore disabled ITS nodes

On 01/02/18 17:03, Stephen Boyd wrote:
> On some platforms there's an ITS available but it's not enabled
> because reading or writing the registers is denied by the
> firmware. In fact, reading or writing them will cause the system
> to reset. We could remove the node from DT in such a case, but
> it's better to skip nodes that are marked as "disabled" in DT so
> that we can describe the hardware that exists and use the status
> property to indicate how the firmware has configured things.
> 
> Cc: Stuart Yoder <stuyoder@...il.com>
> Cc: Laurentiu Tudor <laurentiu.tudor@....com>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: Marc Zyngier <marc.zyngier@....com>
> Cc: Rajendra Nayak <rnayak@...eaurora.org>
> Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>

Queued, thanks Stephen.

	M.
-- 
Jazz is not dead. It just smells funny...