Remove unused / write-only entries from struct exynos_tmu_registers.
Then remove unused defines while at it.

We don't keep the unused/untested features in the kernel just
in case that some future hardware might need it.  Such code has
a real maintainance cost (all other code changes have to take
the dead code into account) and usually makes future changes
more difficult, not easier (i.e. recent additions of Exynos5420
SoC and Exynos5260 SoC thermal support has not made use of any
of the driver's currently unused/untested features, moreover
the recently added code is more complex than needed because of
the existing dead code).  Also all removed dead code is still
accessible in the kernel git repository and can be easily
brought back if/when needed.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnier...@samsung.com>
Acked-by: Kyungmin Park <kyungmin.p...@samsung.com>
---
 drivers/thermal/samsung/exynos_tmu.h      | 40 -------------------------------
 drivers/thermal/samsung/exynos_tmu_data.c |  4 ----
 drivers/thermal/samsung/exynos_tmu_data.h | 29 +---------------------
 3 files changed, 1 insertion(+), 72 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_tmu.h 
b/drivers/thermal/samsung/exynos_tmu.h
index edd08cf..59799ef 100644
--- a/drivers/thermal/samsung/exynos_tmu.h
+++ b/drivers/thermal/samsung/exynos_tmu.h
@@ -84,8 +84,6 @@ enum soc_type {
  * @triminfo_25_shift: shift bit of the 25 C trim value in triminfo_data reg.
  * @triminfo_85_shift: shift bit of the 85 C trim value in triminfo_data reg.
  * @triminfo_ctrl: trim info controller register.
- * @triminfo_reload_shift: shift of triminfo reload enable bit in triminfo_ctrl
-       reg.
  * @tmu_ctrl: TMU main controller register.
  * @test_mux_addr_shift: shift bits of test mux address.
  * @buf_vref_sel_shift: shift bits of reference voltage in tmu_ctrl register.
@@ -100,27 +98,13 @@ enum soc_type {
        register.
  * @calib_mode_mask: mask bits of calibration mode value in tmu_ctrl
        register.
- * @therm_trip_tq_en_shift: shift bits of thermal trip enable by TQ pin in
-       tmu_ctrl register.
  * @core_en_shift: shift bits of TMU core enable bit in tmu_ctrl register.
  * @tmu_status: register drescribing the TMU status.
  * @tmu_cur_temp: register containing the current temperature of the TMU.
- * @tmu_cur_temp_shift: shift bits of current temp value in tmu_cur_temp
-       register.
  * @threshold_temp: register containing the base threshold level.
  * @threshold_th0: Register containing first set of rising levels.
- * @threshold_th0_l0_shift: shift bits of level0 threshold temperature.
- * @threshold_th0_l1_shift: shift bits of level1 threshold temperature.
- * @threshold_th0_l2_shift: shift bits of level2 threshold temperature.
- * @threshold_th0_l3_shift: shift bits of level3 threshold temperature.
  * @threshold_th1: Register containing second set of rising levels.
- * @threshold_th1_l0_shift: shift bits of level0 threshold temperature.
- * @threshold_th1_l1_shift: shift bits of level1 threshold temperature.
- * @threshold_th1_l2_shift: shift bits of level2 threshold temperature.
- * @threshold_th1_l3_shift: shift bits of level3 threshold temperature.
  * @threshold_th2: Register containing third set of rising levels.
- * @threshold_th2_l0_shift: shift bits of level0 threshold temperature.
- * @threshold_th3: Register containing fourth set of rising levels.
  * @threshold_th3_l0_shift: shift bits of level0 threshold temperature.
  * @tmu_inten: register containing the different threshold interrupt
        enable bits.
@@ -129,9 +113,6 @@ enum soc_type {
  * @inten_rise2_shift: shift bits of rising 2 interrupt bits.
  * @inten_rise3_shift: shift bits of rising 3 interrupt bits.
  * @inten_fall0_shift: shift bits of falling 0 interrupt bits.
- * @inten_fall1_shift: shift bits of falling 1 interrupt bits.
- * @inten_fall2_shift: shift bits of falling 2 interrupt bits.
- * @inten_fall3_shift: shift bits of falling 3 interrupt bits.
  * @tmu_intstat: Register containing the interrupt status values.
  * @tmu_intclear: Register for clearing the raised interrupt status.
  * @intclr_fall_shift: shift bits for interrupt clear fall 0
@@ -141,7 +122,6 @@ enum soc_type {
  * @emul_con: TMU emulation controller register.
  * @emul_temp_shift: shift bits of emulation temperature.
  * @emul_time_shift: shift bits of emulation time.
- * @emul_time_mask: mask bits of emulation time.
  * @tmu_irqstatus: register to find which TMU generated interrupts.
  * @tmu_pmin: register to get/set the Pmin value.
  */
@@ -152,7 +132,6 @@ struct exynos_tmu_registers {
 
        u32     triminfo_ctrl;
        u32     triminfo_ctrl1;
-       u32     triminfo_reload_shift;
 
        u32     tmu_ctrl;
        u32     test_mux_addr_shift;
@@ -165,32 +144,17 @@ struct exynos_tmu_registers {
        u32     buf_slope_sel_mask;
        u32     calib_mode_shift;
        u32     calib_mode_mask;
-       u32     therm_trip_tq_en_shift;
        u32     core_en_shift;
 
        u32     tmu_status;
 
        u32     tmu_cur_temp;
-       u32     tmu_cur_temp_shift;
 
        u32     threshold_temp;
 
        u32     threshold_th0;
-       u32     threshold_th0_l0_shift;
-       u32     threshold_th0_l1_shift;
-       u32     threshold_th0_l2_shift;
-       u32     threshold_th0_l3_shift;
-
        u32     threshold_th1;
-       u32     threshold_th1_l0_shift;
-       u32     threshold_th1_l1_shift;
-       u32     threshold_th1_l2_shift;
-       u32     threshold_th1_l3_shift;
-
        u32     threshold_th2;
-       u32     threshold_th2_l0_shift;
-
-       u32     threshold_th3;
        u32     threshold_th3_l0_shift;
 
        u32     tmu_inten;
@@ -199,9 +163,6 @@ struct exynos_tmu_registers {
        u32     inten_rise2_shift;
        u32     inten_rise3_shift;
        u32     inten_fall0_shift;
-       u32     inten_fall1_shift;
-       u32     inten_fall2_shift;
-       u32     inten_fall3_shift;
 
        u32     tmu_intstat;
 
@@ -214,7 +175,6 @@ struct exynos_tmu_registers {
        u32     emul_con;
        u32     emul_temp_shift;
        u32     emul_time_shift;
-       u32     emul_time_mask;
 
        u32     tmu_irqstatus;
        u32     tmu_pmin;
diff --git a/drivers/thermal/samsung/exynos_tmu_data.c 
b/drivers/thermal/samsung/exynos_tmu_data.c
index c1d81dc..41e8168 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.c
+++ b/drivers/thermal/samsung/exynos_tmu_data.c
@@ -96,7 +96,6 @@ static const struct exynos_tmu_registers 
exynos4412_tmu_registers = {
        .triminfo_25_shift = EXYNOS_TRIMINFO_25_SHIFT,
        .triminfo_85_shift = EXYNOS_TRIMINFO_85_SHIFT,
        .triminfo_ctrl = EXYNOS_TMU_TRIMINFO_CON,
-       .triminfo_reload_shift = EXYNOS_TRIMINFO_RELOAD_SHIFT,
        .tmu_ctrl = EXYNOS_TMU_REG_CONTROL,
        .test_mux_addr_shift = EXYNOS4412_MUX_ADDR_SHIFT,
        .buf_vref_sel_shift = EXYNOS_TMU_REF_VOLTAGE_SHIFT,
@@ -126,7 +125,6 @@ static const struct exynos_tmu_registers 
exynos4412_tmu_registers = {
        .emul_con = EXYNOS_EMUL_CON,
        .emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
        .emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
-       .emul_time_mask = EXYNOS_EMUL_TIME_MASK,
 };
 
 #define EXYNOS4412_TMU_DATA \
@@ -228,7 +226,6 @@ static const struct exynos_tmu_registers 
exynos5260_tmu_registers = {
        .emul_con = EXYNOS5260_EMUL_CON,
        .emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
        .emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
-       .emul_time_mask = EXYNOS_EMUL_TIME_MASK,
 };
 
 #define __EXYNOS5260_TMU_DATA  \
@@ -320,7 +317,6 @@ static const struct exynos_tmu_registers 
exynos5420_tmu_registers = {
        .emul_con = EXYNOS_EMUL_CON,
        .emul_temp_shift = EXYNOS_EMUL_DATA_SHIFT,
        .emul_time_shift = EXYNOS_EMUL_TIME_SHIFT,
-       .emul_time_mask = EXYNOS_EMUL_TIME_MASK,
 };
 
 #define __EXYNOS5420_TMU_DATA  \
diff --git a/drivers/thermal/samsung/exynos_tmu_data.h 
b/drivers/thermal/samsung/exynos_tmu_data.h
index d268981..8018815 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.h
+++ b/drivers/thermal/samsung/exynos_tmu_data.h
@@ -42,20 +42,8 @@
 /* Exynos4210 specific registers */
 #define EXYNOS4210_TMU_REG_THRESHOLD_TEMP      0x44
 #define EXYNOS4210_TMU_REG_TRIG_LEVEL0 0x50
-#define EXYNOS4210_TMU_REG_TRIG_LEVEL1 0x54
-#define EXYNOS4210_TMU_REG_TRIG_LEVEL2 0x58
-#define EXYNOS4210_TMU_REG_TRIG_LEVEL3 0x5C
-#define EXYNOS4210_TMU_REG_PAST_TEMP0  0x60
-#define EXYNOS4210_TMU_REG_PAST_TEMP1  0x64
-#define EXYNOS4210_TMU_REG_PAST_TEMP2  0x68
-#define EXYNOS4210_TMU_REG_PAST_TEMP3  0x6C
-
-#define EXYNOS4210_TMU_TRIG_LEVEL0_MASK        0x1
-#define EXYNOS4210_TMU_TRIG_LEVEL1_MASK        0x10
-#define EXYNOS4210_TMU_TRIG_LEVEL2_MASK        0x100
-#define EXYNOS4210_TMU_TRIG_LEVEL3_MASK        0x1000
+
 #define EXYNOS4210_TMU_TRIG_LEVEL_MASK 0x1111
-#define EXYNOS4210_TMU_INTCLEAR_VAL    0x1111
 
 /* Exynos5250 and Exynos4412 specific registers */
 #define EXYNOS_TMU_TRIMINFO_CON        0x14
@@ -63,14 +51,11 @@
 #define EXYNOS_THD_TEMP_FALL           0x54
 #define EXYNOS_EMUL_CON                0x80
 
-#define EXYNOS_TRIMINFO_RELOAD_SHIFT   1
 #define EXYNOS_TRIMINFO_25_SHIFT       0
 #define EXYNOS_TRIMINFO_85_SHIFT       8
 #define EXYNOS_TMU_RISE_INT_MASK       0x111
 #define EXYNOS_TMU_RISE_INT_SHIFT      0
 #define EXYNOS_TMU_FALL_INT_MASK       0x111
-#define EXYNOS_TMU_CLEAR_RISE_INT      0x111
-#define EXYNOS_TMU_CLEAR_FALL_INT      (0x111 << 12)
 #define EXYNOS_TMU_CLEAR_FALL_INT_SHIFT        12
 #define EXYNOS5420_TMU_CLEAR_FALL_INT_SHIFT    16
 #define EXYNOS5440_TMU_CLEAR_FALL_INT_SHIFT    4
@@ -85,9 +70,6 @@
 #define EXYNOS_TMU_INTEN_RISE2_SHIFT   8
 #define EXYNOS_TMU_INTEN_RISE3_SHIFT   12
 #define EXYNOS_TMU_INTEN_FALL0_SHIFT   16
-#define EXYNOS_TMU_INTEN_FALL1_SHIFT   20
-#define EXYNOS_TMU_INTEN_FALL2_SHIFT   24
-#define EXYNOS_TMU_INTEN_FALL3_SHIFT   28
 
 #define EXYNOS_EMUL_TIME       0x57F0
 #define EXYNOS_EMUL_TIME_MASK  0xffff
@@ -122,13 +104,11 @@
 #define EXYNOS5440_TMU_S0_7_TH0                        0x110
 #define EXYNOS5440_TMU_S0_7_TH1                        0x130
 #define EXYNOS5440_TMU_S0_7_TH2                        0x150
-#define EXYNOS5440_TMU_S0_7_EVTEN              0x1F0
 #define EXYNOS5440_TMU_S0_7_IRQEN              0x210
 #define EXYNOS5440_TMU_S0_7_IRQ                        0x230
 /* exynos5440 common registers */
 #define EXYNOS5440_TMU_IRQ_STATUS              0x000
 #define EXYNOS5440_TMU_PMIN                    0x004
-#define EXYNOS5440_TMU_TEMP                    0x008
 
 #define EXYNOS5440_TMU_RISE_INT_MASK           0xf
 #define EXYNOS5440_TMU_RISE_INT_SHIFT          0
@@ -138,13 +118,6 @@
 #define EXYNOS5440_TMU_INTEN_RISE2_SHIFT       2
 #define EXYNOS5440_TMU_INTEN_RISE3_SHIFT       3
 #define EXYNOS5440_TMU_INTEN_FALL0_SHIFT       4
-#define EXYNOS5440_TMU_INTEN_FALL1_SHIFT       5
-#define EXYNOS5440_TMU_INTEN_FALL2_SHIFT       6
-#define EXYNOS5440_TMU_INTEN_FALL3_SHIFT       7
-#define EXYNOS5440_TMU_TH_RISE0_SHIFT          0
-#define EXYNOS5440_TMU_TH_RISE1_SHIFT          8
-#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
 
-- 
1.8.2.3

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