From 5668aa03df7cea924201e7a40308c9efdbb0506b Mon Sep 17 00:00:00 2001
From: Hyeonseong Gil <hs.gil@samsung.com>
Date: Wed, 19 Oct 2016 14:08:45 +0900
Subject: [PATCH] [COMMON] thermal: samsung: Logging MCINFO MR4 status

Change-Id: I04823d0c9a92af9a8c433ca847189687cdbd9298
Signed-off-by: Hyeonseong Gil <hs.gil@samsung.com>
---
 drivers/thermal/samsung/exynos_tmu.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 655aadb8b587..628e6148e775 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -44,6 +44,7 @@
 #include <linux/exynos-ss.h>
 #include <soc/samsung/tmu.h>
 #include <soc/samsung/ect_parser.h>
+#include <soc/samsung/exynos-mcinfo.h>
 #include <dt-bindings/thermal/thermal_exynos.h>
 
 #include "exynos_tmu.h"
@@ -703,10 +704,18 @@ static void exynos8895_tmu_control(struct platform_device *pdev, bool on)
 		writel(global_avg_con, data->base + EXYNOS_TMU_REG_AVG_CON);
 
 }
+
+#define MCINFO_LOG_THRESHOLD	(4)
+
 static int exynos_get_temp(void *p, int *temp)
 {
 	struct exynos_tmu_data *data = p;
 	struct thermal_cooling_device *cdev;
+	unsigned int mcinfo_count;
+	unsigned int mcinfo_result[4] = {0, 0, 0, 0};
+	unsigned int mcinfo_logging = 0;
+	unsigned int mcinfo_temp = 0;
+	unsigned int i;
 
 	if (!data || !data->tmu_read)
 		return -EINVAL;
@@ -733,6 +742,21 @@ static int exynos_get_temp(void *p, int *temp)
 	mutex_unlock(&thermal_suspend_lock);
 
 	exynos_ss_thermal(data->pdata, *temp / 1000, data->tmu_name, 0);
+
+	if (data->id == 0) {
+		mcinfo_count = get_mcinfo_base_count();
+		get_refresh_rate(mcinfo_result);
+
+		for (i = 0; i < mcinfo_count; i++) {
+			mcinfo_temp |= (mcinfo_result[i] & 0xf) << (8 * i);
+
+			if (mcinfo_result[i] >= MCINFO_LOG_THRESHOLD)
+				mcinfo_logging = 1;
+		}
+
+		if (mcinfo_logging == 1)
+			exynos_ss_thermal(NULL, mcinfo_temp, "MCINFO", 0);
+	}
 	return 0;
 }
 
-- 
2.20.1