thermal: exynos: simplify HW_TRIP level setting

Simplify HW_TRIP level setting in exynos_tmu_initialize() (don't
pretend that the current code is hardware and configuration
independent and just do SoC type check explicitly).  Then remove
no longer needed reg->threshold_[th2,th3_l0_shift] abstractions
(only assigned for Exynos5440 in exynos5440_tmu_registers) and
EXYNOS_MAX_TRIGGER_PER_REG define.

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>

4 files changed, 5 insertions, 13 deletions

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 411c4650353e..1c15b37821cb 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -252,18 +252,18 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
                                 (pdata->trigger_type[i] == HW_TRIP)) {
                         threshold_code = temp_to_code(data,
                                                 pdata->trigger_levels[i]);
-                        if (i == EXYNOS_MAX_TRIGGER_PER_REG - 1) {
+                        if (data->soc != SOC_ARCH_EXYNOS5440) {
                                 /* 1-4 level to be assigned in th0 reg */
                                 rising_threshold &= ~(0xff << 8 * i);
                                 rising_threshold |= threshold_code << 8 * i;
                                 writel(rising_threshold,
-                                        data->base + reg->threshold_th0);
-                        } else if (i == EXYNOS_MAX_TRIGGER_PER_REG) {
+                                        data->base + EXYNOS_THD_TEMP_RISE);
+                        } else {
                                 /* 5th level to be assigned in th2 reg */
                                 rising_threshold =
-                                threshold_code << reg->threshold_th3_l0_shift;
+                                threshold_code << EXYNOS5440_TMU_TH_RISE4_SHIFT;
                                 writel(rising_threshold,
-                                        data->base + reg->threshold_th2);
+                                        data->base + EXYNOS5440_TMU_S0_7_TH2);
                         }
                         con = readl(data->base + reg->tmu_ctrl);
                         con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT);
diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h
index e8510aaceb05..ebe39b433da4 100644
--- a/drivers/thermal/samsung/exynos_tmu.h
+++ b/drivers/thermal/samsung/exynos_tmu.h
@@ -80,8 +80,6 @@ enum soc_type {
  * @tmu_cur_temp: register containing the current temperature of the TMU.
  * @threshold_th0: Register containing first set of rising levels.
  * @threshold_th1: Register containing second set of rising levels.
- * @threshold_th2: Register containing third set of rising levels.
- * @threshold_th3_l0_shift: shift bits of level0 threshold temperature.
  * @tmu_inten: register containing the different threshold interrupt
         enable bits.
  * @inten_rise0_shift: shift bits of rising 0 interrupt bits.
@@ -100,8 +98,6 @@ struct exynos_tmu_registers {
 
         u32     threshold_th0;
         u32     threshold_th1;
-        u32     threshold_th2;
-        u32     threshold_th3_l0_shift;
 
         u32     tmu_inten;
         u32     inten_rise0_shift;
diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c
index fe063d486ea4..f81c940fe884 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.c
+++ b/drivers/thermal/samsung/exynos_tmu_data.c
@@ -391,8 +391,6 @@ static const struct exynos_tmu_registers exynos5440_tmu_registers = {
         .tmu_cur_temp = EXYNOS5440_TMU_S0_7_TEMP,
         .threshold_th0 = EXYNOS5440_TMU_S0_7_TH0,
         .threshold_th1 = EXYNOS5440_TMU_S0_7_TH1,
-        .threshold_th2 = EXYNOS5440_TMU_S0_7_TH2,
-        .threshold_th3_l0_shift = EXYNOS5440_TMU_TH_RISE4_SHIFT,
         .tmu_inten = EXYNOS5440_TMU_S0_7_IRQEN,
         .inten_rise0_shift = EXYNOS5440_TMU_INTEN_RISE0_SHIFT,
         .inten_rise1_shift = EXYNOS5440_TMU_INTEN_RISE1_SHIFT,
diff --git a/drivers/thermal/samsung/exynos_tmu_data.h b/drivers/thermal/samsung/exynos_tmu_data.h
index e02ef992f71e..2af312d8f7b5 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.h
+++ b/drivers/thermal/samsung/exynos_tmu_data.h
@@ -72,8 +72,6 @@
 #define EXYNOS_EMUL_DATA_MASK   0xFF
 #define EXYNOS_EMUL_ENABLE      0x1
 
-#define EXYNOS_MAX_TRIGGER_PER_REG      4
-
 /* Exynos5260 specific */
 #define EXYNOS5260_TMU_REG_INTEN                0xC0
 #define EXYNOS5260_TMU_REG_INTSTAT              0xC4