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-rw-r--r--arch/arm/mach-tegra/board-cardhu-panel.c3
-rw-r--r--arch/arm/mach-tegra/board-enterprise-panel.c3
-rw-r--r--arch/arm/mach-tegra/board-ventana-panel.c3
-rw-r--r--arch/arm/mach-tegra/board-whistler-panel.c3
-rw-r--r--arch/arm/mach-tegra/board.h4
-rw-r--r--arch/arm/mach-tegra/common.c52
6 files changed, 67 insertions, 1 deletions
diff --git a/arch/arm/mach-tegra/board-cardhu-panel.c b/arch/arm/mach-tegra/board-cardhu-panel.c
index c28352e657ff..d8b811ce932f 100644
--- a/arch/arm/mach-tegra/board-cardhu-panel.c
+++ b/arch/arm/mach-tegra/board-cardhu-panel.c
@@ -836,6 +836,9 @@ static void cardhu_panel_early_suspend(struct early_suspend *h)
#ifdef CONFIG_TEGRA_CONVSERVATIVE_GOV_ON_EARLYSUPSEND
cpufreq_save_default_governor();
cpufreq_set_conservative_governor();
+ cpufreq_set_conservative_governor_param(
+ SET_CONSERVATIVE_GOVERNOR_UP_THRESHOLD,
+ SET_CONSERVATIVE_GOVERNOR_DOWN_THRESHOLD);
#endif
}
diff --git a/arch/arm/mach-tegra/board-enterprise-panel.c b/arch/arm/mach-tegra/board-enterprise-panel.c
index 8ea83a4e8fe0..f15a0cc865a2 100644
--- a/arch/arm/mach-tegra/board-enterprise-panel.c
+++ b/arch/arm/mach-tegra/board-enterprise-panel.c
@@ -434,6 +434,9 @@ static void enterprise_panel_early_suspend(struct early_suspend *h)
#ifdef CONFIG_TEGRA_CONVSERVATIVE_GOV_ON_EARLYSUPSEND
cpufreq_save_default_governor();
cpufreq_set_conservative_governor();
+ cpufreq_set_conservative_governor_param(
+ SET_CONSERVATIVE_GOVERNOR_UP_THRESHOLD,
+ SET_CONSERVATIVE_GOVERNOR_DOWN_THRESHOLD);
#endif
}
diff --git a/arch/arm/mach-tegra/board-ventana-panel.c b/arch/arm/mach-tegra/board-ventana-panel.c
index 61e1ae4ef121..37422253c381 100644
--- a/arch/arm/mach-tegra/board-ventana-panel.c
+++ b/arch/arm/mach-tegra/board-ventana-panel.c
@@ -337,6 +337,9 @@ static void ventana_panel_early_suspend(struct early_suspend *h)
#ifdef CONFIG_TEGRA_CONVSERVATIVE_GOV_ON_EARLYSUPSEND
cpufreq_save_default_governor();
cpufreq_set_conservative_governor();
+ cpufreq_set_conservative_governor_param(
+ SET_CONSERVATIVE_GOVERNOR_UP_THRESHOLD,
+ SET_CONSERVATIVE_GOVERNOR_DOWN_THRESHOLD);
#endif
}
diff --git a/arch/arm/mach-tegra/board-whistler-panel.c b/arch/arm/mach-tegra/board-whistler-panel.c
index f4ec0cecd45a..41e381d16416 100644
--- a/arch/arm/mach-tegra/board-whistler-panel.c
+++ b/arch/arm/mach-tegra/board-whistler-panel.c
@@ -300,6 +300,9 @@ static void whistler_panel_early_suspend(struct early_suspend *h)
#ifdef CONFIG_TEGRA_CONVSERVATIVE_GOV_ON_EARLYSUPSEND
cpufreq_save_default_governor();
cpufreq_set_conservative_governor();
+ cpufreq_set_conservative_governor_param(
+ SET_CONSERVATIVE_GOVERNOR_UP_THRESHOLD,
+ SET_CONSERVATIVE_GOVERNOR_DOWN_THRESHOLD);
#endif
}
diff --git a/arch/arm/mach-tegra/board.h b/arch/arm/mach-tegra/board.h
index dafaa03560df..fea1ae78786e 100644
--- a/arch/arm/mach-tegra/board.h
+++ b/arch/arm/mach-tegra/board.h
@@ -72,9 +72,13 @@ enum panel_type {
void tegra_get_board_info(struct board_info *);
#ifdef CONFIG_TEGRA_CONVSERVATIVE_GOV_ON_EARLYSUPSEND
+#define SET_CONSERVATIVE_GOVERNOR_UP_THRESHOLD 95
+#define SET_CONSERVATIVE_GOVERNOR_DOWN_THRESHOLD 50
+
void cpufreq_save_default_governor(void);
void cpufreq_restore_default_governor(void);
void cpufreq_set_conservative_governor(void);
+void cpufreq_set_conservative_governor_param(int up_th, int down_th);
#endif
int get_core_edp(void);
enum panel_type get_panel_type(void);
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index ad06ff179e99..c378de84700d 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -735,6 +735,7 @@ void __init tegra_reserve(unsigned long carveout_size, unsigned long fb_size,
static char cpufreq_gov_default[32];
static char *cpufreq_gov_conservative = "conservative";
static char *cpufreq_sysfs_place_holder="/sys/devices/system/cpu/cpu%i/cpufreq/scaling_governor";
+static char *cpufreq_gov_conservative_param="/sys/devices/system/cpu/cpufreq/conservative/%s";
static void cpufreq_set_governor(char *governor)
{
@@ -780,7 +781,7 @@ void cpufreq_save_default_governor(void)
scaling_gov->f_op->read != NULL)
scaling_gov->f_op->read(scaling_gov,
cpufreq_gov_default,
- 127,
+ 32,
&offset);
else
pr_err("f_op might be null\n");
@@ -796,6 +797,55 @@ void cpufreq_restore_default_governor(void)
cpufreq_set_governor(cpufreq_gov_default);
}
+void cpufreq_set_conservative_governor_param(int up_th, int down_th)
+{
+ struct file *gov_param = NULL;
+ static char buf[128],parm[8];
+ loff_t offset = 0;
+
+ if (up_th <= down_th) {
+ printk(KERN_ERR "%s: up_th(%d) is lesser than down_th(%d)\n",
+ __func__, up_th, down_th);
+ return;
+ }
+
+ sprintf(parm, "%d", up_th);
+ sprintf(buf, cpufreq_gov_conservative_param ,"up_threshold");
+ gov_param = filp_open(buf, O_RDONLY, 0);
+ if (gov_param != NULL) {
+ if (gov_param->f_op != NULL &&
+ gov_param->f_op->write != NULL)
+ gov_param->f_op->write(gov_param,
+ parm,
+ strlen(parm),
+ &offset);
+ else
+ pr_err("f_op might be null\n");
+
+ filp_close(gov_param, NULL);
+ } else {
+ pr_err("%s. Can't open %s\n", __func__, buf);
+ }
+
+ sprintf(parm, "%d", down_th);
+ sprintf(buf, cpufreq_gov_conservative_param ,"down_threshold");
+ gov_param = filp_open(buf, O_RDONLY, 0);
+ if (gov_param != NULL) {
+ if (gov_param->f_op != NULL &&
+ gov_param->f_op->write != NULL)
+ gov_param->f_op->write(gov_param,
+ parm,
+ strlen(parm),
+ &offset);
+ else
+ pr_err("f_op might be null\n");
+
+ filp_close(gov_param, NULL);
+ } else {
+ pr_err("%s. Can't open %s\n", __func__, buf);
+ }
+}
+
void cpufreq_set_conservative_governor(void)
{
cpufreq_set_governor(cpufreq_gov_conservative);
generated by cgit v1.2.3 (git 2.0.4) at 2025-01-30 06:58:05 +0000