linux-kernel - [PATCH 4.2 098/110] thermal: exynos: Fix register read in TMU

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Date:	Fri,  6 Nov 2015 11:19:45 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Sudip Mukherjee <sudip@...torindia.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Lukasz Majewski <l.majewski@...sung.com>,
	Kukjin Kim <kgene@...nel.org>
Subject: [PATCH 4.2 098/110] thermal: exynos: Fix register read in TMU

4.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Sudip Mukherjee <sudipm.mukherjee@...il.com>

commit b28fec1324bf8f5010d2c3c5d57db4115bda66d4 upstream.

The value of emul_con was getting overwritten if the selected soc is
SOC_ARCH_EXYNOS5260. And so as a result we were reading from the wrong
register in the case of SOC_ARCH_EXYNOS5260.

Fixes: 488c7455d74c ("thermal: exynos: Add the support for Exynos5433 TMU")
Signed-off-by: Sudip Mukherjee <sudip@...torindia.org>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@...sung.com>
Acked-by: Lukasz Majewski <l.majewski@...sung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
Signed-off-by: Kukjin Kim <kgene@...nel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/thermal/samsung/exynos_tmu.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -933,7 +933,7 @@ static void exynos4412_tmu_set_emulation
 
 	if (data->soc == SOC_ARCH_EXYNOS5260)
 		emul_con = EXYNOS5260_EMUL_CON;
-	if (data->soc == SOC_ARCH_EXYNOS5433)
+	else if (data->soc == SOC_ARCH_EXYNOS5433)
 		emul_con = EXYNOS5433_TMU_EMUL_CON;
 	else if (data->soc == SOC_ARCH_EXYNOS7)
 		emul_con = EXYNOS7_TMU_REG_EMUL_CON;


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