From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Thu, 26 Apr 2018 11:51:16 +0000 (+0200)
Subject: thermal: exynos: fix setting rising_threshold for Exynos5433
X-Git-Tag: v4.9.117~38
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3221a270e2c28cad0144421bd8a9a32c23d31e6c;p=platform%2Fkernel%2Flinux-amlogic.git

thermal: exynos: fix setting rising_threshold for Exynos5433

[ Upstream commit 8bfc218d0ebbabcba8ed2b8ec1831e0cf1f71629 ]

Add missing clearing of the previous value when setting rising
temperature threshold.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index a45810b43f70..c974cb5fb958 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -598,6 +598,7 @@ static int exynos5433_tmu_initialize(struct platform_device *pdev)
 		threshold_code = temp_to_code(data, temp);
 
 		rising_threshold = readl(data->base + rising_reg_offset);
+		rising_threshold &= ~(0xff << j * 8);
 		rising_threshold |= (threshold_code << j * 8);
 		writel(rising_threshold, data->base + rising_reg_offset);