thermal: exynos: remove needless emul_time_shift abstraction

reg->emul_time_shift is used only in exynos_tmu_set_emulation()
and accessed only if TMU_SUPPORT_EMUL_TIME flag is set.  This
flag is not set for Exynos4210 and Exynos5440 (reg->emul_time_shift
field is not even assigned in exynos[4210,5440]_tmu_registers
and is assigned to identical value for all other SoC types) so
the abstraction is not needed and can be removed.

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>

drivers/thermal/samsung/exynos_tmu.c

@@ -380,8 +380,8 @@ static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp)
 		temp /= MCELSIUS;
 
 		if (TMU_SUPPORTS(pdata, EMUL_TIME)) {
-			val &= ~(EXYNOS_EMUL_TIME_MASK << reg->emul_time_shift);
-			val |= (EXYNOS_EMUL_TIME << reg->emul_time_shift);
+			val &= ~(EXYNOS_EMUL_TIME_MASK << EXYNOS_EMUL_TIME_SHIFT);
+			val |= (EXYNOS_EMUL_TIME << EXYNOS_EMUL_TIME_SHIFT);
 		}
 		val &= ~(EXYNOS_EMUL_DATA_MASK << EXYNOS_EMUL_DATA_SHIFT);
 		val |= (temp_to_code(data, temp) << EXYNOS_EMUL_DATA_SHIFT) |

drivers/thermal/samsung/exynos_tmu.h

@@ -92,7 +92,6 @@ enum soc_type {
  * @tmu_intstat: Register containing the interrupt status values.
  * @tmu_intclear: Register for clearing the raised interrupt status.
  * @emul_con: TMU emulation controller register.
- * @emul_time_shift: shift bits of emulation time.
  * @tmu_irqstatus: register to find which TMU generated interrupts.
  * @tmu_pmin: register to get/set the Pmin value.
  */
@@ -118,7 +117,6 @@ struct exynos_tmu_registers {
 	u32	tmu_intclear;
 
 	u32	emul_con;
-	u32	emul_time_shift;
 
 	u32	tmu_irqstatus;
 	u32	tmu_pmin;

drivers/thermal/samsung/exynos_tmu_data.c

@@ -94,7 +94,6 @@ static const struct exynos_tmu_registers exynos3250_tmu_registers = {
 	.tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
 	.tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
 	.emul_con = EXYNOS_EMUL_CON,
-	.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
 };
 
 #define EXYNOS3250_TMU_DATA \
@@ -166,7 +165,6 @@ static const struct exynos_tmu_registers exynos4412_tmu_registers = {
 	.tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
 	.tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
 	.emul_con = EXYNOS_EMUL_CON,
-	.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
 };
 
 #define EXYNOS4412_TMU_DATA \
@@ -250,7 +248,6 @@ static const struct exynos_tmu_registers exynos5260_tmu_registers = {
 	.tmu_intstat = EXYNOS5260_TMU_REG_INTSTAT,
 	.tmu_intclear = EXYNOS5260_TMU_REG_INTCLEAR,
 	.emul_con = EXYNOS5260_EMUL_CON,
-	.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
 };
 
 #define __EXYNOS5260_TMU_DATA	\
@@ -324,7 +321,6 @@ static const struct exynos_tmu_registers exynos5420_tmu_registers = {
 	.tmu_intstat = EXYNOS_TMU_REG_INTSTAT,
 	.tmu_intclear = EXYNOS_TMU_REG_INTCLEAR,
 	.emul_con = EXYNOS_EMUL_CON,
-	.emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
 };
 
 #define __EXYNOS5420_TMU_DATA	\