linux-kernel - Re: [PATCH v5 4/6] ARM: mediatek: Add sysirq interrupt polarity support

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Message-ID: <1415084661.31861.5.camel@mtksdaap41>
Date:	Tue, 4 Nov 2014 15:04:21 +0800
From:	Yingjoe Chen <yingjoe.chen@...iatek.com>
To:	Matthias Brugger <matthias.bgg@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jiang Liu <jiang.liu@...ux.intel.com>,
	Marc Zyngier <marc.zyngier@....com>, <arm@...nel.org>
CC:	Jiang Liu <jiang.liu@...ux.intel.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	Jason Cooper <jason@...edaemon.net>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Grant Likely <grant.likely@...aro.org>,
	Boris BREZILLON <boris.brezillon@...e-electrons.com>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<srv_heupstream@...iatek.com>, <yingjoe.chen@...il.com>,
	<hc.yen@...iatek.com>, <eddie.huang@...iatek.com>,
	<nathan.chung@...iatek.com>, <yh.chen@...iatek.com>,
	Sascha Hauer <kernel@...gutronix.de>,
	Olof Johansson <olof@...om.net>, Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH v5 4/6] ARM: mediatek: Add sysirq interrupt polarity
 support

On Wed, 2014-10-29 at 18:00 +0800, Yingjoe Chen wrote:
> diff --git a/drivers/irqchip/irq-mtk-sysirq.c b/drivers/irqchip/irq-mtk-sysirq.c
> new file mode 100644
> index 0000000..4403bcf
> --- /dev/null
> +++ b/drivers/irqchip/irq-mtk-sysirq.c
> +static int mtk_sysirq_domain_alloc(struct irq_domain *domain, unsigned int virq,
> +				   unsigned int nr_irqs, void *arg)
> +{
> +	int i, ret;
> +	irq_hw_number_t hwirq;
> +	struct of_phandle_args *irq_data = arg;
> +
> +	if (irq_data->args_count < 3)
> +		return -EINVAL;
> +
> +	hwirq = irq_data->args[1];
> +	for (i = 0; i < nr_irqs; i++)
> +		irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i,
> +					      &mtk_sysirq_chip,
> +					      domain->host_data);
> +
> +	return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, arg);
> +}

(answering my own patch)
The ret is not used in this function. I'll remove it in next version.

Besides this, is there anything that should be changed in this series?

Joe.C


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