PD#113199: fix bug of gpu core can't reduce.

change ratio between gpu frequent steps and gpu core steps.
if this ratio is not correct, it will cause core/freq can't
reduce when temperature is high.

Change-Id: If6615951f5995fc40928cca63e96b6b6e287ffe5

3 files changed, 148 insertions, 137 deletions

diff --git a/amlogic_thermal.h b/amlogic_thermal.h
index 6f6d256..ec60ac4 100644
--- a/amlogic_thermal.h
+++ b/amlogic_thermal.h
@@ -106,5 +106,6 @@ void *aml_get_cdevdata(struct thermal_cooling_device *cdev);
 void aml_set_cdev_update(struct thermal_cooling_device *cdev, bool update);
 void aml_cdev_lockop(struct thermal_cooling_device *cdev, bool lock);
 void aml_cdev_get_cur_state(struct thermal_cooling_device *cdev, unsigned long *ret);
+int gpu_get_freq_level(int freq);
 
 #endif /* __AMLOGIC_THERMAL_H__ */
diff --git a/amlogic_thermal.o_shipped b/amlogic_thermal.o_shipped
index 6c0a6ab..7ead449 100644
--- a/amlogic_thermal.o_shipped
+++ b/amlogic_thermal.o_shipped
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diff --git a/amlogic_thermal_module.c b/amlogic_thermal_module.c
index 3965d06..afd2cac 100644
--- a/amlogic_thermal_module.c
+++ b/amlogic_thermal_module.c
@@ -69,6 +69,7 @@ EXPORT_SYMBOL(freq_update_flag);
 static struct aml_virtual_thermal_device cpu_virtual_thermal = {};
 static struct aml_virtual_thermal_device gpu_virtual_thermal = {};
 static unsigned int report_interval[4] = {};
+static int (*gpu_freq_level)(int ) = NULL;
 
 /* CPU Zone information */
 #define PANIC_ZONE      4
@@ -206,6 +207,13 @@ static int amlogic_get_crit_temp(struct thermal_zone_device *thermal,
     return ret;
 }
 
+int gpu_get_freq_level(int freq)
+{
+    if (gpu_freq_level)
+        return gpu_freq_level(freq);
+    else
+        return -1;
+}
 
 /* Bind callback functions for thermal zone */
 static int amlogic_bind(struct thermal_zone_device *thermal,
@@ -252,6 +260,8 @@ static int amlogic_bind(struct thermal_zone_device *thermal,
                 ret = -EINVAL;
                 pr_info("invalidate pointer %p\n",gpufreq_dev->get_gpu_freq_level);
                 goto out;
+            } else {
+                gpu_freq_level = gpufreq_dev->get_gpu_freq_level;
             }
             pdata->tmp_trip[i].gpu_lower_level=gpufreq_dev->get_gpu_freq_level(pdata->tmp_trip[i].gpu_upper_freq);
             pdata->tmp_trip[i].gpu_upper_level=gpufreq_dev->get_gpu_freq_level(pdata->tmp_trip[i].gpu_lower_freq);