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>

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index e4d75a1a17ae857f0ea6f8eb9d63d87a15a72dc1..b0c07151e2ebeb50ed861eed012f6a46e1318dad 100644 (file)
--- 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);