diff mbox

[v11,7/7] thermal:exynos:boost: Automatic enable/disable of BOOST feature (at Exynos4412)

Message ID 1386952717-30947-8-git-send-email-l.majewski@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Lukasz Majewski Dec. 13, 2013, 4:38 p.m. UTC
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@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>

---
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(-)

Comments

Eduardo Valentin Dec. 19, 2013, 2:50 p.m. UTC | #1
On 13-12-2013 12:38, Lukasz Majewski wrote:
> 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@samsung.com>
> Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>

Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>

Looks better to me now. You might consider refactoring this driver to be
frequency independent, if possible. But that is a different subject
other than this patch.

> 
> ---
> 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, \
>
diff mbox

Patch

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, \