[PATCH v11 7/7] thermal:exynos:boost: Automatic enable/disable ofBOOST feature (at Exynos4412)

[Lukasz Majewski]

This patch provides auto disable/enable operation for boost. It uses already
present thermal infrastructure to provide boost hysteresis.
The TMU data has been modified to work properly with or without boost.

Signed-off-by: Lukasz Majewski <l.majewski@xxxxxxxxxxx>
Signed-off-by: Myungjoo Ham <myungjoo.ham@xxxxxxxxxxx>

---
Changes for v11:
    - Use only one thermal data set
    - Adjust Exynos4412 thermal data to work with or without BOOST

Changes for v10:
    - Remove boost related code from thermal_core.c
    - Use already present thermal infrastructure to provide thermal hysteresis
    - Introduce special set of TMU data for BOOST

Changes for v9:
    - None

Changes for v8:
    - Move cpufreq_boost_* stub functions definition (needed when cpufreq
      is not compiled in) to cpufreq.h at cpufreq core support commit

Changes for v7:
    - None

Changes for v6:
    - Disable boost only when supported and enabled
    - Protect boost related thermal_zone_device struct fields with mutex
    - Evaluate temperature trend during boost enable decision
    - Create separate methods to handle boost enable/disable
      (thermal_boost_{enable|disable}) operations
    - Boost is disabled at any trip point passage (not only the non critical one)
    - Add stub definitions for cpufreq boost functions used when
      CONFIG_CPU_FREQ is NOT defined.

Changes for v5:
    - Move boost disable code from cpu_cooling.c to thermal_core.c
      (to handle_non_critical_trips)
    - Extent struct thermal_zone_device by adding overheated bool flag
    - Implement auto enable of boost after device cools down
    - Introduce boost_polling flag, which indicates if thermal uses it's predefined
      pool delay or has woken up thermal workqueue only to wait until device
      cools down.

Changes for v4:
    - New patch

 drivers/thermal/samsung/exynos_tmu_data.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c
index 073c292..476b768 100644
--- a/drivers/thermal/samsung/exynos_tmu_data.c
+++ b/drivers/thermal/samsung/exynos_tmu_data.c
@@ -131,8 +131,8 @@ static const struct exynos_tmu_registers exynos4412_tmu_registers = {
 
 #define EXYNOS4412_TMU_DATA \
 	.threshold_falling = 10, \
-	.trigger_levels[0] = 85, \
-	.trigger_levels[1] = 103, \
+	.trigger_levels[0] = 70, \
+	.trigger_levels[1] = 95, \
 	.trigger_levels[2] = 110, \
 	.trigger_levels[3] = 120, \
 	.trigger_enable[0] = true, \
@@ -155,12 +155,12 @@ static const struct exynos_tmu_registers exynos4412_tmu_registers = {
 	.second_point_trim = 85, \
 	.default_temp_offset = 50, \
 	.freq_tab[0] = { \
-		.freq_clip_max = 800 * 1000, \
-		.temp_level = 85, \
+		.freq_clip_max = 1400 * 1000, \
+		.temp_level = 70, \
 	}, \
 	.freq_tab[1] = { \
-		.freq_clip_max = 200 * 1000, \
-		.temp_level = 103, \
+		.freq_clip_max = 400 * 1000, \
+		.temp_level = 95, \
 	}, \
 	.freq_tab_count = 2, \
 	.registers = &exynos4412_tmu_registers, \
-- 
1.7.10.4

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