thermal: exynos: add sanitize_temp_error() helper

Factor out code for initializing data->temp_error[1,2] values
from exynos_tmu_initialize() into sanitize_temp_error().

This is a preparation for introducing per-SoC type tmu_initialize
method.

There should be no functional changes caused by this patch.

Cc: Amit Daniel Kachhap <amit.daniel@samsung.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

1 files changed, 20 insertions, 13 deletions

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index e4d75a1a17ae..b0c07151e2eb 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -139,6 +139,25 @@ static void exynos_tmu_clear_irqs(struct exynos_tmu_data *data)
         writel(val_irq, data->base + reg->tmu_intclear);
 }
 
+static void sanitize_temp_error(struct exynos_tmu_data *data, u32 trim_info)
+{
+        struct exynos_tmu_platform_data *pdata = data->pdata;
+
+        data->temp_error1 = trim_info & EXYNOS_TMU_TEMP_MASK;
+        data->temp_error2 = ((trim_info >> EXYNOS_TRIMINFO_85_SHIFT) &
+                                EXYNOS_TMU_TEMP_MASK);
+
+        if (!data->temp_error1 ||
+                (pdata->min_efuse_value > data->temp_error1) ||
+                (data->temp_error1 > pdata->max_efuse_value))
+                data->temp_error1 = pdata->efuse_value & EXYNOS_TMU_TEMP_MASK;
+
+        if (!data->temp_error2)
+                data->temp_error2 =
+                        (pdata->efuse_value >> EXYNOS_TRIMINFO_85_SHIFT) &
+                        EXYNOS_TMU_TEMP_MASK;
+}
+
 static int exynos_tmu_initialize(struct platform_device *pdev)
 {
         struct exynos_tmu_data *data = platform_get_drvdata(pdev);
@@ -200,19 +219,7 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
                 else
                         trim_info = readl(data->base + EXYNOS_TMU_REG_TRIMINFO);
         }
-        data->temp_error1 = trim_info & EXYNOS_TMU_TEMP_MASK;
-        data->temp_error2 = ((trim_info >> EXYNOS_TRIMINFO_85_SHIFT) &
-                                EXYNOS_TMU_TEMP_MASK);
-
-        if (!data->temp_error1 ||
-                (pdata->min_efuse_value > data->temp_error1) ||
-                (data->temp_error1 > pdata->max_efuse_value))
-                data->temp_error1 = pdata->efuse_value & EXYNOS_TMU_TEMP_MASK;
-
-        if (!data->temp_error2)
-                data->temp_error2 =
-                        (pdata->efuse_value >> EXYNOS_TRIMINFO_85_SHIFT) &
-                        EXYNOS_TMU_TEMP_MASK;
+        sanitize_temp_error(data, trim_info);
 
         rising_threshold = readl(data->base + reg->threshold_th0);