From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Cc: "Joe. C" <yingjoe.chen@mediatek.com>,
arm@kernel.org, Rob Herring <robh+dt@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Jiang Liu <jiang.liu@linux.intel.com>,
Marc Zyngier <marc.zyngier@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Sricharan R <r.sricharan@ti.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Russell King <linux@arm.linux.org.uk>,
yingjoe.chen@gmail.com, yh.chen@mediatek.com,
nathan.chung@mediatek.com, Grant Likely <grant.likely@linaro.org>,
devicetree@vger.kernel.org, Jason Cooper <jason@lakedaemon.net>,
Pawel Moll <pawel.moll@arm.com>, Matt Porter <mporter@linaro.org>,
Marc Carino <marc.ceeeee@gmail.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
eddie.huang@mediatek.com, srv_heupstream@mediatek.com,
hc.yen@mediatek.com, linux-kernel@vger.kernel.org,
Santosh Shilimkar <santosh.shilimkar@ti.co>
Subject: Re: [PATCH v3 4/7] ARM: mediatek: Add sysirq interrupt polarity support
Date: Thu, 09 Oct 2014 16:37:25 +0200 [thread overview]
Message-ID: <2076856.iIXavsNzjc@wuerfel> (raw)
In-Reply-To: <1412864980-20273-5-git-send-email-yingjoe.chen@mediatek.com>
On Thursday 09 October 2014 22:29:37 Joe. C wrote:
> +static int __init mtk_sysirq_of_init(struct device_node *node,
> + struct device_node *parent)
> +{
> + struct device_node *parent_node;
> + struct irq_domain *domain, *domain_parent = NULL;
> + struct mt_sysirq_chip_data *chip_data;
> + int ret = 0;
> +
> + parent_node = of_irq_find_parent(node);
> + if (parent_node) {
> + domain_parent = irq_find_host(parent_node);
> + of_node_put(parent_node);
> + }
Just a small comment: I think the 'parent' argument to the function
already contains the device node you are looking up here, so
no need for the second variable or _find_parent call.
This means you can also drop the = NULL assignment for the
domain.
Arnd
next prev parent reply other threads:[~2014-10-09 14:37 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-09 14:29 [PATCH v3 0/7] ARM: mediatek: Add support for interrupt polarity Joe.C
2014-10-09 14:29 ` [PATCH v3 1/7] irqdomain: Fix irq_domain_alloc_irqs return check Joe.C
2014-10-13 12:11 ` Marc Zyngier
[not found] ` <543BC186.2050701-5wv7dgnIgG8@public.gmane.org>
2014-10-13 14:13 ` Jiang Liu
2014-10-09 14:29 ` [PATCH v3 2/7] genirq: Add more helper functions to support stacked irq_chip Joe.C
2014-10-09 14:29 ` [PATCH v3 3/7] irqchip: gic: Support hierarchy irq domain Joe.C
2014-10-09 16:59 ` Marc Zyngier
[not found] ` <5436BF0C.1030508-5wv7dgnIgG8@public.gmane.org>
2014-10-09 17:22 ` Arnd Bergmann
2014-10-13 10:43 ` Joe.C
2014-10-13 12:10 ` Marc Zyngier
2014-10-13 19:51 ` Arnd Bergmann
2014-10-13 8:56 ` Marc Zyngier
[not found] ` <543B93B4.3040404-5wv7dgnIgG8@public.gmane.org>
2014-10-13 9:25 ` Marc Zyngier
2014-10-13 9:27 ` Arnd Bergmann
2014-10-13 9:44 ` Marc Zyngier
2014-10-09 14:29 ` [PATCH v3 4/7] ARM: mediatek: Add sysirq interrupt polarity support Joe.C
2014-10-09 14:37 ` Arnd Bergmann [this message]
2014-10-09 14:53 ` Joe.C
2014-10-13 13:43 ` Matthias Brugger
2014-10-13 14:14 ` Matthias Brugger
2014-10-09 14:29 ` [PATCH v3 5/7] ARM: mediatek: Add sysirq in mt6589/mt8135/mt8127 dtsi Joe.C
2014-10-09 14:29 ` [PATCH v3 6/7] dt-bindings: add irq domain parent binding Joe.C
[not found] ` <1412864980-20273-7-git-send-email-yingjoe.chen-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
2014-10-09 14:57 ` Mark Rutland
2014-10-09 14:29 ` [PATCH v3 7/7] dt-bindings: add bindings for mediatek sysirq Joe.C
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