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Date:   Mon, 10 Sep 2018 06:35:49 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     Anup Patel <anup@brainfault.org>
Cc:     Christoph Hellwig <hch@infradead.org>,
        Daniel Lezcano <daniel.lezcano@linaro.org>,
        Jason Cooper <jason@lakedaemon.net>,
        Marc Zyngier <marc.zyngier@arm.com>,
        Palmer Dabbelt <palmer@sifive.com>,
        "linux-kernel@vger.kernel.org List" <linux-kernel@vger.kernel.org>,
        Atish Patra <atish.patra@wdc.com>,
        Albert Ou <aou@eecs.berkeley.edu>,
        Palmer Dabbelt <palmer@dabbelt.com>,
        Thomas Gleixner <tglx@linutronix.de>,
        linux-riscv@lists.infradead.org
Subject: Re: [RFC PATCH 4/5] irqchip: RISC-V Local Interrupt Controller Driver
Message-ID: <20180910133549.GA15730@infradead.org>
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On Thu, Sep 06, 2018 at 05:23:07PM +0530, Anup Patel wrote:
> > And we reject that driver approach for good reason and are now
> > doing the architectualy low-level irq handling in common code
> > without any need whatsover to duplicate information in the
> > privileged spec in DT.
> 
> In other words, the whole idea of separate RISCV local interrupt
> controller driver was dropped due duplicate information in privilege
> spec DT ??

No.  We came to the conflusion that a few registers on a cpu
that allow enabling/disabling local vs external vs timer intterupts
aren't worth writing an irqchip (or DT entries) for.