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ddr_freq: optimize param for power consume

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陈亮
2014-04-22 00:47:30 -07:00
parent a840a0c862
commit 0483515a1a
1 changed files with 14 additions and 12 deletions
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26
arch/arm/mach-rockchip/ddr_freq.c
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@@ -183,10 +183,10 @@ enum ddr_bandwidth_id{
#define DDR_BOOST_HOLD_MS 500
#define HIGH_LOAD_HOLD_MS 1000
#define HIGH_LOAD_DELAY_MS 60
#define LOW_LOAD_DELAY_MS 500
#define DDR_BOOST_HOLD_MS 300
#define HIGH_LOAD_HOLD_MS 300
#define HIGH_LOAD_DELAY_MS 0
#define LOW_LOAD_DELAY_MS 200
#define DDR_BOOST_HOLD (DDR_BOOST_HOLD_MS/ddrbw_work_delay_ms)
#define HIGH_LOAD_HOLD (DDR_BOOST_HOLD_MS/ddrbw_work_delay_ms)
#define HIGH_LOAD_DELAY (HIGH_LOAD_DELAY_MS/ddrbw_work_delay_ms)
@@ -196,7 +196,7 @@ enum ddr_bandwidth_id{
#define DDR_RATE_HIGH_LOAD 533000000
#define DDR_RATE_1080P 240000000
#define DDR_RATE_4K 300000000
#define HIGH_LOAD_NORMAL 65
#define HIGH_LOAD_NORMAL 70
#define HGIH_LOAD_VIDEO 50
static struct workqueue_struct *ddr_freq_wq;
@@ -238,6 +238,7 @@ void ddr_bandwidth_get(u32 *ch0_eff, u32 *ch1_eff)
*ch1_eff = temp64;
}
static void ddrbw_work_fn(struct work_struct *work)
{
unsigned long rate;
@@ -251,17 +252,17 @@ static void ddrbw_work_fn(struct work_struct *work)
if (ddr_boost) {
ddr_boost = 0;
//dvfs_clk_set_rate(ddr.clk_dvfs_node, DDR_BOOST_RATE);
rate = ddr_rate_boost;
ddrfreq_mode(false, &rate, "boost");
ddr_boost_hold = DDR_BOOST_HOLD;
high_load_hold = 0;
high_load_delay = HIGH_LOAD_DELAY;
if (!high_load_hold && !low_load_delay) {
rate = ddr_rate_boost;
ddrfreq_mode(false, &rate, "boost");
ddr_boost_hold = DDR_BOOST_HOLD;
}
} else if(!ddr_boost_hold && ((ch0_eff>high_load)||(ch1_eff>high_load))){
low_load_delay = LOW_LOAD_DELAY;
if (!high_load_delay) {
//dvfs_clk_set_rate(ddr.clk_dvfs_node, HIGH_LOAD_RATE);
rate = ddr_rate_high_load;
ddrfreq_mode(false, &rate, "high load");
low_load_delay = LOW_LOAD_DELAY;
high_load_hold = HIGH_LOAD_HOLD;
} else {
high_load_delay--;
@@ -281,12 +282,13 @@ static void ddrbw_work_fn(struct work_struct *work)
low_load_delay--;
}
}
}
}
ddr_monitor_start();
queue_delayed_work_on(0, ddr_freq_wq, to_delayed_work(work), HZ*ddrbw_work_delay_ms/1000);
}
static DECLARE_DELAYED_WORK(ddrbw_work, ddrbw_work_fn);
static noinline void ddrfreq_work(unsigned long sys_status)