linux-kernel - [PATCH 1/2] thermal: exynos: Fix wrong control of power down detection mode for Exynos7

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Message-id: <1424753815-15113-2-git-send-email-cw00.choi@samsung.com>
Date:	Tue, 24 Feb 2015 13:56:54 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	rui.zhang@...el.com, edubezval@...il.com
Cc:	kgene@...nel.org, b.zolnierkie@...sung.com,
	amit.daniel@...sung.com, l.majewski@...sung.com,
	a.kesavan@...sung.com, inki.dae@...sung.com,
	kyungmin.park@...sung.com, linux-pm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org,
	Chanwoo Choi <cw00.choi@...sung.com>
Subject: [PATCH 1/2] thermal: exynos: Fix wrong control of power down detection
 mode for Exynos7

This patch fixes the wrong control of PD_DET_EN (power down detection mode)
for Exynos7 because exynos7_tmu_control() always enables the power down detection
mode regardless 'on' parameter.

Cc: Zhang Rui <rui.zhang@...el.com>
Cc: Eduardo Valentin <edubezval@...il.com>
Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
---
 drivers/thermal/samsung/exynos_tmu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 933cd80..a60f527 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -682,6 +682,7 @@ static void exynos7_tmu_control(struct platform_device *pdev, bool on)
 
 	if (on) {
 		con |= (1 << EXYNOS_TMU_CORE_EN_SHIFT);
+		con |= (1 << EXYNOS7_PD_DET_EN_SHIFT);
 		interrupt_en =
 			(of_thermal_is_trip_valid(tz, 7)
 			<< EXYNOS7_TMU_INTEN_RISE7_SHIFT) |
@@ -704,9 +705,9 @@ static void exynos7_tmu_control(struct platform_device *pdev, bool on)
 			interrupt_en << EXYNOS_TMU_INTEN_FALL0_SHIFT;
 	} else {
 		con &= ~(1 << EXYNOS_TMU_CORE_EN_SHIFT);
+		con &= ~(1 << EXYNOS7_PD_DET_EN_SHIFT);
 		interrupt_en = 0; /* Disable all interrupts */
 	}
-	con |= 1 << EXYNOS7_PD_DET_EN_SHIFT;
 
 	writel(interrupt_en, data->base + EXYNOS7_TMU_REG_INTEN);
 	writel(con, data->base + EXYNOS_TMU_REG_CONTROL);
-- 
1.8.5.5

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