Factor out code for preparing threshold register value from
exynos_tmu_initialize() into get_th_reg().
This is a preparation for introducing per-SoC type tmu_initialize
method.
There should be no functional changes caused by this patch.
Cc: Naveen Krishna Chatradhi <ch.naveen@xxxxxxxxxxx>
Cc: Amit Daniel Kachhap <amit.daniel@xxxxxxxxxxx>
Cc: Lukasz Majewski <l.majewski@xxxxxxxxxxx>
Cc: Eduardo Valentin <edubezval@xxxxxxxxx>
Cc: Zhang Rui <rui.zhang@xxxxxxxxx>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
Acked-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
drivers/thermal/samsung/exynos_tmu.c | 37 ++++++++++++++++++++++--------------
1 file changed, 23 insertions(+), 14 deletions(-)
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index a32ca04..80b781d 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -141,6 +141,25 @@ static void sanitize_temp_error(struct exynos_tmu_data *data, u32 trim_info)
EXYNOS_TMU_TEMP_MASK;
}
+static u32 get_th_reg(struct exynos_tmu_data *data, u32 threshold, bool falling)
+{
+ struct exynos_tmu_platform_data *pdata = data->pdata;
+ int i;
+
+ for (i = 0; i < pdata->non_hw_trigger_levels; i++) {
+ u8 temp = pdata->trigger_levels[i];
+
+ if (falling)
+ temp -= pdata->threshold_falling;
+ else
+ threshold &= ~(0xff << 8 * i);
+
+ threshold |= temp_to_code(data, temp) << 8 * i;
+ }
+
+ return threshold;
+}
+
static int exynos_tmu_initialize(struct platform_device *pdev)
{
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
@@ -204,8 +223,6 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
}
sanitize_temp_error(data, trim_info);
- rising_threshold = readl(data->base + reg->threshold_th0);
-
if (data->soc == SOC_ARCH_EXYNOS4210) {
/* Write temperature code for threshold */
threshold_code = temp_to_code(data, pdata->threshold);
@@ -218,18 +235,10 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
writel(reg->intclr_rise_mask, data->base + reg->tmu_intclear);
} else {
/* Write temperature code for rising and falling threshold */
- for (i = 0; i < pdata->non_hw_trigger_levels; i++) {
- threshold_code = temp_to_code(data,
- pdata->trigger_levels[i]);
- rising_threshold &= ~(0xff << 8 * i);
- rising_threshold |= threshold_code << 8 * i;
- if (data->soc != SOC_ARCH_EXYNOS5440) {
- threshold_code = temp_to_code(data,
- pdata->trigger_levels[i] -
- pdata->threshold_falling);
- falling_threshold |= threshold_code << 8 * i;
- }
- }
+ rising_threshold = readl(data->base + reg->threshold_th0);
+ rising_threshold = get_th_reg(data, rising_threshold, false);
+ if (data->soc != SOC_ARCH_EXYNOS5440)
+ falling_threshold = get_th_reg(data, 0, true);
writel(rising_threshold,
data->base + reg->threshold_th0);
--
1.8.2.3
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