[PATCH v3 6/8] thermal: exynos: cache non_hw_trigger_levels in pdata

From: Bartlomiej Zolnierkiewicz
Date: Thu Jul 31 2014 - 13:12:48 EST


Cache number of non-hardware trigger levels in a new pdata field
(non_hw_trigger_levels) and convert code in exynos_tmu_initialize()
accordingly.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
Acked-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
Reviewed-by: Amit Daniel Kachhap <amit.daniel@xxxxxxxxxxx>
---
drivers/thermal/samsung/exynos_tmu.c | 16 +++-------------
drivers/thermal/samsung/exynos_tmu.h | 2 ++
drivers/thermal/samsung/exynos_tmu_data.c | 6 ++++++
3 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index aa4d4fd..6bc8a20 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -129,7 +129,7 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
const struct exynos_tmu_registers *reg = pdata->registers;
unsigned int status, trim_info = 0, con;
unsigned int rising_threshold = 0, falling_threshold = 0;
- int ret = 0, threshold_code, i, trigger_levs = 0;
+ int ret = 0, threshold_code, i;

mutex_lock(&data->lock);
clk_enable(data->clk);
@@ -187,15 +187,6 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
(pdata->efuse_value >> reg->triminfo_85_shift) &
EXYNOS_TMU_TEMP_MASK;

- for (i = 0; i < pdata->max_trigger_level; i++) {
- if (!pdata->trigger_levels[i])
- continue;
-
- /* Count trigger levels except the HW trip*/
- if (!(pdata->trigger_type[i] == HW_TRIP))
- trigger_levs++;
- }
-
rising_threshold = readl(data->base + reg->threshold_th0);

if (data->soc == SOC_ARCH_EXYNOS4210) {
@@ -203,15 +194,14 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
threshold_code = temp_to_code(data, pdata->threshold);
writeb(threshold_code,
data->base + reg->threshold_temp);
- for (i = 0; i < trigger_levs; i++)
+ for (i = 0; i < pdata->non_hw_trigger_levels; i++)
writeb(pdata->trigger_levels[i], data->base +
reg->threshold_th0 + i * sizeof(reg->threshold_th0));

writel(reg->intclr_rise_mask, data->base + reg->tmu_intclear);
} else {
/* Write temperature code for rising and falling threshold */
- for (i = 0;
- i < trigger_levs && i < EXYNOS_MAX_TRIGGER_PER_REG; i++) {
+ 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);
diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h
index 789a8f7..5514d68 100644
--- a/drivers/thermal/samsung/exynos_tmu.h
+++ b/drivers/thermal/samsung/exynos_tmu.h
@@ -199,6 +199,7 @@ struct exynos_tmu_registers {
* 1 = enable trigger_level[] interrupt,
* 0 = disable trigger_level[] interrupt
* @max_trigger_level: max trigger level supported by the TMU
+ * @non_hw_trigger_levels: number of defined non-hardware trigger levels
* @gain: gain of amplifier in the positive-TC generator block
* 0 <= gain <= 15
* @reference_voltage: reference voltage of amplifier
@@ -232,6 +233,7 @@ struct exynos_tmu_platform_data {
enum trigger_type trigger_type[MAX_TRIP_COUNT];
bool trigger_enable[MAX_TRIP_COUNT];
u8 max_trigger_level;
+ u8 non_hw_trigger_levels;
u8 gain;
u8 reference_voltage;
u8 noise_cancel_mode;
diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c
index 1d05bf8..9c81515 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.c
+++ b/drivers/thermal/samsung/exynos_tmu_data.c
@@ -64,6 +64,7 @@ struct exynos_tmu_init_data const exynos4210_default_tmu_data = {
.trigger_type[1] = THROTTLE_ACTIVE,
.trigger_type[2] = SW_TRIP,
.max_trigger_level = 4,
+ .non_hw_trigger_levels = 3,
.gain = 15,
.reference_voltage = 7,
.cal_type = TYPE_ONE_POINT_TRIMMING,
@@ -140,6 +141,7 @@ static const struct exynos_tmu_registers exynos3250_tmu_registers = {
.trigger_type[2] = SW_TRIP, \
.trigger_type[3] = HW_TRIP, \
.max_trigger_level = 4, \
+ .non_hw_trigger_levels = 3, \
.gain = 8, \
.reference_voltage = 16, \
.noise_cancel_mode = 4, \
@@ -230,6 +232,7 @@ static const struct exynos_tmu_registers exynos4412_tmu_registers = {
.trigger_type[2] = SW_TRIP, \
.trigger_type[3] = HW_TRIP, \
.max_trigger_level = 4, \
+ .non_hw_trigger_levels = 3, \
.gain = 8, \
.reference_voltage = 16, \
.noise_cancel_mode = 4, \
@@ -331,6 +334,7 @@ static const struct exynos_tmu_registers exynos5260_tmu_registers = {
.trigger_type[2] = SW_TRIP, \
.trigger_type[3] = HW_TRIP, \
.max_trigger_level = 4, \
+ .non_hw_trigger_levels = 3, \
.gain = 8, \
.reference_voltage = 16, \
.noise_cancel_mode = 4, \
@@ -422,6 +426,7 @@ static const struct exynos_tmu_registers exynos5420_tmu_registers = {
.trigger_type[2] = SW_TRIP, \
.trigger_type[3] = HW_TRIP, \
.max_trigger_level = 4, \
+ .non_hw_trigger_levels = 3, \
.gain = 8, \
.reference_voltage = 16, \
.noise_cancel_mode = 4, \
@@ -514,6 +519,7 @@ static const struct exynos_tmu_registers exynos5440_tmu_registers = {
.trigger_type[0] = SW_TRIP, \
.trigger_type[4] = HW_TRIP, \
.max_trigger_level = 5, \
+ .non_hw_trigger_levels = 1, \
.gain = 5, \
.reference_voltage = 16, \
.noise_cancel_mode = 4, \
--
1.8.2.3

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/