linux-kernel - [PATCH 3/8 v3] thermal: rcar: check irq possibility in rcar_thermal_irq

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Date:	Mon, 7 Dec 2015 07:43:28 +0000
From:	Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
To:	Simon <horms@...ge.net.au>, Zhang Rui <rui.zhang@...el.com>,
	Eduardo Valentin <edubezval@...il.com>,
	Geert Uytterhoeven <geert@...ux-m68k.org>
CC:	Magnus <magnus.damm@...il.com>, <linux-sh@...r.kernel.org>,
	<linux-pm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: [PATCH 3/8 v3] thermal: rcar: check irq possibility in rcar_thermal_irq_xxx()

From: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>

Current rcar thermal driver sometimes checks irq possibility when it
calls rcar_thermal_irq_enable/disable(), but sometimes not.
This patch checks it inside rcar_thermal_irq_enable/disable().

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
---
v2 -> v3

 - no change

 drivers/thermal/rcar_thermal.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/thermal/rcar_thermal.c b/drivers/thermal/rcar_thermal.c
index 4d1bc2b..aaedf37 100644
--- a/drivers/thermal/rcar_thermal.c
+++ b/drivers/thermal/rcar_thermal.c
@@ -297,6 +297,9 @@ static void _rcar_thermal_irq_ctrl(struct rcar_thermal_priv *priv, int enable)
 	unsigned long flags;
 	u32 mask = 0x3 << rcar_id_to_shift(priv); /* enable Rising/Falling */
 
+	if (!rcar_has_irq_support(priv))
+		return;
+
 	spin_lock_irqsave(&common->lock, flags);
 
 	rcar_thermal_common_bset(common, INTMSK, mask, enable ? 0 : mask);
@@ -381,8 +384,7 @@ static int rcar_thermal_remove(struct platform_device *pdev)
 	struct rcar_thermal_priv *priv;
 
 	rcar_thermal_for_each_priv(priv, common) {
-		if (rcar_has_irq_support(priv))
-			rcar_thermal_irq_disable(priv);
+		rcar_thermal_irq_disable(priv);
 		thermal_zone_device_unregister(priv->zone);
 	}
 
@@ -468,8 +470,7 @@ static int rcar_thermal_probe(struct platform_device *pdev)
 			goto error_unregister;
 		}
 
-		if (rcar_has_irq_support(priv))
-			rcar_thermal_irq_enable(priv);
+		rcar_thermal_irq_enable(priv);
 
 		list_move_tail(&priv->list, &common->head);
 
-- 
1.9.1

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