From: Rob Herring <robh@kernel•org>
To: Marc Zyngier <maz@kernel•org>
Cc: devicetree@vger•kernel.org, Jason Cooper <jason@lakedaemon•net>,
Saravana Kannan <saravanak@google•com>,
kernel-team@android•com, Hanks Chen <hanks.chen@mediatek•com>,
linux-kernel@vger•kernel.org,
Bjorn Andersson <bjorn.andersson@linaro•org>,
Matthias Brugger <matthias.bgg@gmail•com>,
Andy Gross <agross@kernel•org>,
John Stultz <john.stultz@linaro•org>,
Enric Balletbo i Serra <enric.balletbo@collabora•com>,
Frank Wunderlich <linux@fw-web•de>,
Frank Rowand <frowand.list@gmail•com>,
Thomas Gleixner <tglx@linutronix•de>,
linux-arm-kernel@lists•infradead.org
Subject: Re: [PATCH 0/6] irqchip: Hybrid probing
Date: Tue, 15 Sep 2020 15:13:54 -0600 [thread overview]
Message-ID: <20200915211354.GA2469362@bogus> (raw)
In-Reply-To: <20200912125148.1271481-1-maz@kernel.org>
On Sat, Sep 12, 2020 at 01:51:42PM +0100, Marc Zyngier wrote:
> A recent attempt at converting a couple of interrupt controllers from
> early probing to standard platform drivers have badly failed, as it
> became evident that although an interrupt controller can easily probe
> late, device drivers for the endpoints connected to it are rarely
> equipped to deal with probe deferral. Changes were swiftly reverted.
>
> However, there is some value in *optionally* enabling this, if only
> for development purposes, as there is otherwise a "chicken and egg"
> problem, and a few people (cc'd) are working on a potential solution.
>
> This short series enables the infrastructure for modular building
> whilst retaining the usual early probing for monolithic build, and
> introduces it to the three drivers that were previously made to probe
> as platform drivers.
I hardly expected more OF_DECLARE macros when I opened this up. Given
desires to get rid of them, I don't think adding to it is the way
forward. That wrapping a platform driver around OF_DECLARE looks pretty
horrible IMO.
I browsed some of the discussion around this. It didn't seem like it's
a large number of drivers that have to be fixed to defer probe
correctly. Am I missing something?
I'd rather keep the pressure on getting fw_devlink on by default.
Rob
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next prev parent reply other threads:[~2020-09-15 21:15 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-12 12:51 [PATCH 0/6] irqchip: Hybrid probing Marc Zyngier
2020-09-12 12:51 ` [PATCH 1/6] of: Add basic infrastructure to create early probe arrays Marc Zyngier
2020-09-12 23:20 ` Bjorn Andersson
2020-09-13 2:40 ` Bjorn Andersson
2020-09-12 12:51 ` [PATCH 2/6] irqchip: Make IRQCHIP_MATCH() type safe Marc Zyngier
2020-09-12 23:20 ` Bjorn Andersson
2020-09-12 12:51 ` [PATCH 3/6] irqchip: Introduce IRQCHIP_HYBRID_DRIVER_{BEGIN, END} macros Marc Zyngier
2020-09-12 23:21 ` Bjorn Andersson
2020-09-12 12:51 ` [PATCH 4/6] irqchip/mtk-cirq: Allow modular build Marc Zyngier
2020-09-12 23:22 ` Bjorn Andersson
2020-09-16 8:26 ` Enric Balletbo Serra
2020-09-12 12:51 ` [PATCH 5/6] irqchip/mtk-sysirq: " Marc Zyngier
2020-09-12 23:22 ` Bjorn Andersson
2020-09-16 8:22 ` Enric Balletbo Serra
2020-09-12 12:51 ` [PATCH 6/6] irqchip/qcom-pdc: " Marc Zyngier
2020-09-12 23:22 ` Bjorn Andersson
2020-09-14 20:33 ` [PATCH 0/6] irqchip: Hybrid probing John Stultz
2020-09-15 21:13 ` Rob Herring [this message]
2020-09-16 8:51 ` Marc Zyngier
2020-09-16 15:18 ` Rob Herring
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