[PATCH v2 7/9] thermal: exynos: cache non_hw_trigger_levels in pdata

[Bartlomiej Zolnierkiewicz]

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 |  5 +++++
 3 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
index 34ac081..9455b23 100644
--- a/drivers/thermal/samsung/exynos_tmu.c
+++ b/drivers/thermal/samsung/exynos_tmu.c
@@ -91,7 +91,7 @@ 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);
@@ -142,15 +142,6 @@ static int exynos_tmu_initialize(struct platform_device *pdev)
 	    data->temp_error > pdata->max_efuse_value)
 		data->temp_error = pdata->efuse_value & 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) {
@@ -158,15 +149,14 @@ 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 60ecc61..b1c9f8d 100644
--- a/drivers/thermal/samsung/exynos_tmu.h
+++ b/drivers/thermal/samsung/exynos_tmu.h
@@ -186,6 +186,7 @@ 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
@@ -216,6 +217,7 @@ 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 7a9cee5..4bc6b06 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.c
+++ b/drivers/thermal/samsung/exynos_tmu_data.c
@@ -62,6 +62,7 @@ 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,
 		.min_efuse_value = 40,
@@ -135,6 +136,7 @@ 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, \
@@ -231,6 +233,7 @@ 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, \
@@ -317,6 +320,7 @@ 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, \
@@ -404,6 +408,7 @@ 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

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