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SubjectRE: [PATCH V2 1/7] DRIVERS: IRQCHIP: IRQ-GIC: Add support for routable irqs
Date
Hi Thomas,
Sorry for top posting. My mailer is not allowing me any formatting.

I agree with both of your comments below.
I will post V3 for this.

Regards,
Sricharan

________________________________________
From: Thomas Gleixner [tglx@linutronix.de]
Sent: Wednesday, October 30, 2013 8:45 PM
To: R, Sricharan
Cc: linux-kernel@vger.kernel.org; devicetree@vger.kernel.org; linux-doc@vger.kernel.org; linux-arm-kernel@lists.infradead.org; linux-omap@vger.kernel.org; linus.walleij@linaro.org; linux@arm.linux.org.uk; tony@atomide.com; Nayak, Rajendra; marc.zyngier@arm.com; grant.likely@linaro.org; mark.rutland@arm.com; robherring2@gmail.com; Shilimkar, Santosh; Rob Herring
Subject: Re: [PATCH V2 1/7] DRIVERS: IRQCHIP: IRQ-GIC: Add support for routable irqs

On Wed, 30 Oct 2013, Sricharan R wrote:
> @@ -700,11 +709,22 @@ static int gic_irq_domain_xlate(struct irq_domain *d,
> *out_hwirq = intspec[1] + 16;
>
> /* For SPIs, we need to add 16 more to get the GIC irq ID number */
> - if (!intspec[0])
> + if (!intspec[0]) {
> *out_hwirq += 16;

Minor nit. This should be in the default implementation. The crossbar
implementation will fill out_hwirq in its own way and is not
interested in the +16 operation at all.

> + ret = gic_routable_irq_domain_ops->xlate(d, controller,
> + intspec,
> + intsize,
> + out_hwirq,
> + out_type);
> +

> + gic->domain = irq_domain_add_legacy(node, gic_irqs, irq_base,
> + hwirq_base, &gic_irq_domain_ops, gic);
> + } else {
> + if (WARN_ON(!gic_routable_irq_domain_ops))
> + return;

This warning is pointless, because you have default ops now.

> +
> + gic->domain = irq_domain_add_linear(node, nr_routable_irqs,
> + &gic_irq_domain_ops,
> + gic);
> }

Thanks,

tglx

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