linux-kernel - [PATCH v3 03/12] irqchip: mtk-sysirq: prevent unnecessary visibility when set

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Date:   Sun, 19 Mar 2017 23:26:24 +0800
From:   Mars Cheng <mars.cheng@...iatek.com>
To:     Matthias Brugger <matthias.bgg@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Marc Zyngier <marc.zyngier@....com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>
CC:     CC Hwang <cc.hwang@...iatek.com>,
        Loda Chou <loda.chou@...iatek.com>,
        Miles Chen <miles.chen@...iatek.com>,
        Jades Shih <jades.shih@...iatek.com>,
        Yingjoe Chen <yingjoe.chen@...iatek.com>,
        My Chuang <my.chuang@...iatek.com>,
        <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <wsd_upstream@...iatek.com>, <linux-clk@...r.kernel.org>,
        Mars Cheng <mars.cheng@...iatek.com>
Subject: [PATCH v3 03/12] irqchip: mtk-sysirq: prevent unnecessary visibility when set_type

This prevent unnecessary visibility when configuring trigger type

Signed-off-by: Mars Cheng <mars.cheng@...iatek.com>
---
 drivers/irqchip/irq-mtk-sysirq.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/irqchip/irq-mtk-sysirq.c b/drivers/irqchip/irq-mtk-sysirq.c
index 9ba969c..eeac512 100644
--- a/drivers/irqchip/irq-mtk-sysirq.c
+++ b/drivers/irqchip/irq-mtk-sysirq.c
@@ -57,7 +57,7 @@ static int mtk_sysirq_set_type(struct irq_data *data, unsigned int type)
 		value &= ~(1 << offset);
 	}
 
-	writel(value, base + reg_index * 4);
+	writel_relaxed(value, base + reg_index * 4);
 
 	data = data->parent_data;
 	ret = data->chip->irq_set_type(data, type);
-- 
1.7.9.5