linux-kernel - Re: [PATCH 5/8] irqchip: Conexant CX92755 interrupts controller driver

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Message-ID: <16151065.LjzHK8TaOo@wuerfel>
Date:	Tue, 23 Dec 2014 22:02:18 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	Baruch Siach <baruch@...s.co.il>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/8] irqchip: Conexant CX92755 interrupts controller driver

On Tuesday 23 December 2014 09:58:42 Baruch Siach wrote:
> +static void __exception_irq_entry digicolor_handle_irq(struct pt_regs *regs)
> +{
> +       u32 status, hwirq;
> +
> +       do {
> +               status = readl(digicolor_irq_base + IC_INT0STATUS_LO);
> +               if (status) {
> +                       hwirq = ffs(status) - 1;
> +               } else {
> +                       status = readl(digicolor_irq_base + IC_INT0STATUS_XLO);
> +                       if (status)
> +                               hwirq = ffs(status) - 1 + 32;
> +                       else
> +                               return;
> +               }
> +
> +               handle_domain_irq(digicolor_irq_domain, hwirq, regs);
> +       } while (1);
> +}
> 

Have you tried using the generic_irqchip code for this? The hardware
seems simple enough.

	Arnd
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