linux-kernel - [PATCH/RFC 1/3] thermal: rcar_gen3_thermal: Modify the shared irq with initialization

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Date:	Sun, 19 Jun 2016 11:13:59 +0700
From:	Khiem Nguyen <khiem.nguyen.xt@....renesas.com>
To:	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
CC:	Wolfram Sang <wsa@...-dreams.de>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Magnus Damm <damm+renesas@...nsource.se>,
	Zhang Rui <rui.zhang@...el.com>,
	Eduardo Valentin <edubezval@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Thao Phuong Le. Nguyen" <thao.nguyen.yb@....renesas.com>,
	"Hien Duy. Dang" <hien.dang.eb@....renesas.com>,
	Toru Oishi <toru.oishi.zj@....renesas.com>,
	"linux-renesas-soc@...r.kernel.org" 
	<linux-renesas-soc@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Gaku Inami <gaku.inami.xw@...renesas.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Simon Horman <horms@...ge.net.au>,
	"Khiem Trong. Nguyen" <khiem.nguyen.xt@....renesas.com>
Subject: [PATCH/RFC 1/3] thermal: rcar_gen3_thermal: Modify the shared irq
 with initialization

In R-CAR Gen3 series, it has some thermal sensors. The interrupt I/F
that can be used in thermal sensors is three. So it should be used
the interrupt I/F as shared.

This patch changes the shared settings for the thermal interrupts.

Signed-off-by: Gaku Inami <gaku.inami.xw@...renesas.com>
Signed-off-by: Khiem Nguyen <khiem.nguyen.xt@....renesas.com>
---
 drivers/thermal/rcar_gen3_thermal.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c
index a9a372b..e640a14 100644
--- a/drivers/thermal/rcar_gen3_thermal.c
+++ b/drivers/thermal/rcar_gen3_thermal.c
@@ -416,6 +416,7 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
 	int ret = -ENODEV;
 	int idle;
 	struct device_node *tz_nd, *tmp_nd;
+	int i, irq_cnt;
 
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
@@ -489,13 +490,18 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev)
 	rcar_gen3_thermal_irq_enable(priv);
 
 	/* Interrupt */
-	if (irq) {
-		ret = devm_request_irq(dev, irq->start,
-					rcar_gen3_thermal_irq, 0,
-				       dev_name(dev), priv);
-		if (ret) {
-			dev_err(dev, "IRQ request failed\n ");
-			goto error_unregister;
+	if (rcar_has_irq_support(priv)) {
+		irq_cnt = platform_irq_count(pdev);
+		for (i = 0; i < irq_cnt; i++) {
+			irq = platform_get_resource(pdev, IORESOURCE_IRQ, i);
+			ret = devm_request_irq(dev, irq->start,
+					       rcar_gen3_thermal_irq,
+					       IRQF_SHARED,
+					       dev_name(dev), priv);
+			if (ret) {
+				dev_err(dev, "IRQ request failed\n ");
+				goto error_unregister;
+			}
 		}
 	}
 
-- 
1.9.1