Re: [PATCH v3 6/9] irqchip: Add the ingenic-tcu-intc driver

From: Lee Jones <lee.jones@linaro.org>
To: Marc Zyngier <marc.zyngier@arm.com>
Cc: Paul Cercueil <paul@crapouillou.net>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@codeaurora.org>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Jason Cooper <jason@lakedaemon.net>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	linux-clk@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 6/9] irqchip: Add the ingenic-tcu-intc driver
Date: Mon, 22 Jan 2018 09:26:17 +0000	[thread overview]
Message-ID: <20180122092617.36ggqqike4gwwgrd@dell> (raw)
In-Reply-To: <20180120130649.7f326f75@why.wild-wind.fr.eu.org>

On Sat, 20 Jan 2018, Marc Zyngier wrote:

> On Thu, 11 Jan 2018 17:25:45 +0100
> Paul Cercueil <paul@crapouillou.net> wrote:
> 
> > Hi Marc,
> > 
> > >>  +static int __init ingenic_tcu_intc_of_init(struct device_node 
> > >> *node,
> > >>  +	struct device_node *parent)
> > >>  +{
> > >>  +	struct irq_domain *domain;
> > >>  +	struct irq_chip_generic *gc;
> > >>  +	struct irq_chip_type *ct;
> > >>  +	int err, i, num_parent_irqs;
> > >>  +	unsigned int parent_irqs[3];  
> > > 
> > > 3 parent interrupts? Really? How do you pick one? Also, given the 
> > > useage
> > > model below, "int" is the wrong type. Probably should be u32.  
> > 
> > See below.
> > 
> > >>  +	struct regmap *map;
> > >>  +
> > >>  +	num_parent_irqs = of_property_count_elems_of_size(
> > >>  +			node, "interrupts", 4);  
> > > 
> > > Nit: on a single line, as here is nothing that hurts my eyes more than
> > > reading something like(
> > > this). Also, 4 is better expressed as sizeof(u32).  
> > 
> > That will make checkpatch.pl unhappy :(
> 
> And I don't care about checkpatch. I maintain the irqchip stuff, while
> checkpatch doesn't. Hence, I win.

	num_parent_irqs =
		of_property_count_elems_of_size(node, "interrupts", 4);  

Everybody wins!

-- 
Lee Jones
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
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