This patch adds compensation logic on swapped e-fuse values with boundary
conditions. Currently, e-fused trim values for sensor0 is swapped with
sensor2 so the logic in this patch is needed. sensor1 e-fused trim value is
correct.
Signed-off-by: Jungseok Lee <jays.lee@xxxxxxxxxxx>
Signed-off-by: Amit Daniel Kachhap <amit.daniel@xxxxxxxxxxx>
---
drivers/thermal/samsung/exynos_tmu.c | 23 +++++++++++++++++++++--
drivers/thermal/samsung/exynos_tmu_data.h | 1 +
2 files changed, 22 insertions(+), 2 deletions(-)
diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 671061b..f32d275 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -137,7 +137,7 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
struct exynos_tmu_data *data = platform_get_drvdata(pdev);
struct exynos_tmu_platform_data *pdata = data->pdata;
const struct exynos_tmu_registers *reg = pdata->registers;
- unsigned int status, trim_info, con;
+ unsigned int status, trim_info = 0, con;
unsigned int rising_threshold = 0, falling_threshold = 0;
int ret = 0, threshold_code, i, trigger_levs = 0;
@@ -156,7 +156,26 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
__raw_writel(1, data->base + reg->triminfo_ctrl);
/* Save trimming info in order to perform calibration */
- trim_info = readl(data->base + reg->triminfo_data);
+ if (data->soc == SOC_ARCH_EXYNOS5440) {
+ /*
+ * For exynos5440 soc triminfo value is swapped between TMU0 and
+ * TMU2, so the below logic is needed.
+ */
+ switch (data->id) {
+ case 0:
+ trim_info = readl(data->base +
+ EXYNOS5440_EFUSE_SWAP_OFFSET + reg->triminfo_data);
+ break;
+ case 1:
+ trim_info = readl(data->base + reg->triminfo_data);
+ break;
+ case 2:
+ trim_info = readl(data->base -
+ EXYNOS5440_EFUSE_SWAP_OFFSET + reg->triminfo_data);
+ }
+ } else {
+ trim_info = readl(data->base + reg->triminfo_data);
+ }
data->temp_error1 = trim_info & EXYNOS_TMU_TEMP_MASK;
data->temp_error2 = ((trim_info >> reg->triminfo_85_shift) &
EXYNOS_TMU_TEMP_MASK);
diff --git a/drivers/thermal/samsung/exynos_tmu_data.h b/drivers/thermal/samsung/exynos_tmu_data.h
index eb7250d..a1cc8ab 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.h
+++ b/drivers/thermal/samsung/exynos_tmu_data.h
@@ -127,6 +127,7 @@
#define EXYNOS5440_TMU_TH_RISE2_SHIFT 16
#define EXYNOS5440_TMU_TH_RISE3_SHIFT 24
#define EXYNOS5440_TMU_TH_RISE4_SHIFT 24
+#define EXYNOS5440_EFUSE_SWAP_OFFSET 8
#if defined(CONFIG_CPU_EXYNOS4210)
extern struct exynos_tmu_platform_data const exynos4210_default_tmu_data;
--
1.7.1
--
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