static void exynos_busfreq_timer(struct work_struct *work)
{
struct delayed_work *delayed_work = to_delayed_work(work);
struct busfreq_data *data = container_of(delayed_work, struct busfreq_data,
worker);
struct opp *opp;
unsigned int voltage;
unsigned long currfreq;
unsigned long newfreq;
unsigned int index = 0;
opp = data->monitor(data);
if (bus_ctrl.opp_lock)
opp = bus_ctrl.opp_lock;
ppmu_start(data->dev);
newfreq = opp_get_freq(opp);
index = data->get_table_index(opp);
mutex_lock(&busfreq_lock);
if (opp == data->curr_opp || newfreq == 0 || data->use == false)
goto out;
currfreq = opp_get_freq(data->curr_opp);
voltage = opp_get_voltage(opp);
if (newfreq > currfreq) {
regulator_set_voltage(data->vdd_mif, voltage,
voltage + 25000);
voltage = data->get_int_volt(index);
regulator_set_voltage(data->vdd_int, voltage,
voltage + 25000);
/*if (data->busfreq_prepare)
data->busfreq_prepare(index);*/
}
if (data->set_qos)
data->set_qos(index);
data->target(index);
if (newfreq < currfreq) {
/*if (data->busfreq_post)
data->busfreq_post(index);*/
regulator_set_voltage(data->vdd_mif, voltage,
voltage + 25000);
voltage = data->get_int_volt(index);
regulator_set_voltage(data->vdd_int, voltage,
voltage + 25000);
}
data->curr_opp = opp;
out:
update_busfreq_stat(data, index);
mutex_unlock(&busfreq_lock);
queue_delayed_work(system_freezable_wq, &data->worker, data->sampling_rate);
}
static int mali_kbase_devfreq_target(struct device *dev, unsigned long *_freq,
u32 flags)
{
struct kbase_device *kbdev = (struct kbase_device *)dev->platform_data;
unsigned long old_freq = kbdev->devfreq->previous_freq;
struct opp *opp = NULL;
unsigned long freq;
rcu_read_lock();
opp = devfreq_recommended_opp(dev, _freq, flags);
if (IS_ERR(opp)) {
printk("[mali-midgard] Failed to get Operating Performance Point\n");
rcu_read_unlock();
return PTR_ERR(opp);
}
freq = opp_get_freq(opp);
rcu_read_unlock();
if (old_freq == freq)
return 0;
if (clk_set_rate((kbdev->clk), freq)) {
printk("[mali-midgard] Failed to set gpu freqency, [%lu->%lu]\n", old_freq, freq);
return -ENODEV;
}
return 0;
}
static int exynos5_busfreq_int_target(struct device *dev, unsigned long *_freq,
u32 flags)
{
int err = 0;
struct platform_device *pdev = container_of(dev, struct platform_device,
dev);
struct busfreq_data_int *data = platform_get_drvdata(pdev);
struct opp *opp;
unsigned long old_freq, freq;
unsigned long volt;
rcu_read_lock();
opp = devfreq_recommended_opp(dev, _freq, flags);
if (IS_ERR(opp)) {
rcu_read_unlock();
dev_err(dev, "%s: Invalid OPP.\n", __func__);
return PTR_ERR(opp);
}
freq = opp_get_freq(opp);
volt = opp_get_voltage(opp);
rcu_read_unlock();
old_freq = data->curr_freq;
if (old_freq == freq)
return 0;
dev_dbg(dev, "targeting %lukHz %luuV\n", freq, volt);
mutex_lock(&data->lock);
if (data->disabled)
goto out;
if (freq > exynos5_int_opp_table[0].clk)
pm_qos_update_request(&data->int_req, freq * 16 / 1000);
else
pm_qos_update_request(&data->int_req, -1);
if (old_freq < freq)
err = exynos5_int_setvolt(data, volt);
if (err)
goto out;
err = clk_set_rate(data->int_clk, freq * 1000);
if (err)
goto out;
if (old_freq > freq)
err = exynos5_int_setvolt(data, volt);
if (err)
goto out;
data->curr_freq = freq;
out:
mutex_unlock(&data->lock);
return err;
}
unsigned int exynos4210_get_table_index(struct opp *opp)
{
unsigned int index;
for (index = LV_0; index < LV_END; index++)
if (opp_get_freq(opp) == exynos4_busfreq_table[index].mem_clk)
break;
return index;
}
void g3_display_read_fps(struct g3_display_data *data, struct devfreq_dev_status *stat){
unsigned long fcount = msm_fb_read_frame_count();
data->fps_data.fps = (fcount - data->fps_data.prev_fcount);
data->fps_data.prev_fcount = fcount;
stat->current_frequency = opp_get_freq(data->curr_opp);
stat->total_time = msm_fb_read_frame_rate();
// stat->total_time = g3_display_opp_table[g3_cur_level].freq;
stat->busy_time = (data->fps_data.fps) * (1000 / g3_display_profile.polling_ms);
/* trace("total_time=%lu, busy_time=%lu, util=%lu\n",
stat->total_time, stat->busy_time, (stat->busy_time * 100 / stat->total_time));
*/
}
struct opp *step_down(struct busfreq_data *data, int step)
{
int i;
struct opp *opp = data->curr_opp;
unsigned long newfreq;
if (data->min_opp == data->curr_opp)
return data->curr_opp;
for (i = 0; i < step; i++) {
newfreq = opp_get_freq(opp) - 1;
opp = opp_find_freq_floor(data->dev, &newfreq);
if (opp == data->min_opp)
break;
}
return opp;
}
static struct opp __maybe_unused *step_up(struct busfreq_data *data, int step)
{
int i;
struct opp *opp = data->curr_opp;
unsigned long newfreq;
if (data->max_opp == data->curr_opp)
return data->curr_opp;
for (i = 0; i < step; i++) {
newfreq = opp_get_freq(opp) + 1;
opp = opp_find_freq_ceil(data->dev, &newfreq);
if (opp == data->max_opp)
break;
}
return opp;
}
static int exynos5_devfreq_isp_target(struct device *dev,
unsigned long *target_freq,
u32 flags)
{
int ret = 0;
struct platform_device *pdev = container_of(dev, struct platform_device, dev);
struct devfreq_data_isp *data = platform_get_drvdata(pdev);
struct devfreq *devfreq_isp = data->devfreq;
struct opp *target_opp;
int target_idx, old_idx;
unsigned long target_volt;
unsigned long old_freq;
mutex_lock(&data->lock);
rcu_read_lock();
target_opp = devfreq_recommended_opp(dev, target_freq, flags);
if (IS_ERR(target_opp)) {
rcu_read_unlock();
mutex_unlock(&data->lock);
dev_err(dev, "DEVFREQ(ISP) : Invalid OPP to find\n");
ret = PTR_ERR(target_opp);
goto out;
}
*target_freq = opp_get_freq(target_opp);
target_volt = opp_get_voltage(target_opp);
#ifdef CONFIG_EXYNOS_THERMAL
target_volt = get_limit_voltage(target_volt, data->volt_offset);
#endif
rcu_read_unlock();
target_idx = exynos5_devfreq_get_idx(devfreq_isp_opp_list, data->max_state,
*target_freq);
old_idx = exynos5_devfreq_get_idx(devfreq_isp_opp_list, data->max_state,
devfreq_isp->previous_freq);
old_freq = devfreq_isp->previous_freq;
if (target_idx < 0 ||
old_idx < 0) {
ret = -EINVAL;
goto out;
}
if (old_freq == *target_freq)
goto out;
pr_debug("ISP %lu ================> %lu\n", old_freq, *target_freq);
if (old_freq < *target_freq) {
if (data->isp_set_volt)
data->isp_set_volt(data, target_volt, target_volt + VOLT_STEP, false);
if (data->isp_set_freq)
data->isp_set_freq(data, target_idx, old_idx);
} else {
if (data->isp_set_freq)
data->isp_set_freq(data, target_idx, old_idx);
if (data->isp_set_volt)
data->isp_set_volt(data, target_volt, target_volt + VOLT_STEP, true);
}
out:
mutex_unlock(&data->lock);
return ret;
}
int exynos5250_init(struct device *dev, struct busfreq_data *data)
{
unsigned int i, tmp;
unsigned long maxfreq = ULONG_MAX;
unsigned long minfreq = 0;
unsigned long cdrexfreq;
unsigned long lrbusfreq;
struct clk *clk;
int ret;
/* Enable pause function for DREX2 DVFS */
drex2_pause_ctrl = __raw_readl(EXYNOS5_DREX2_PAUSE);
drex2_pause_ctrl |= DMC_PAUSE_ENABLE;
__raw_writel(drex2_pause_ctrl, EXYNOS5_DREX2_PAUSE);
clk = clk_get(NULL, "mclk_cdrex");
if (IS_ERR(clk)) {
dev_err(dev, "Fail to get mclk_cdrex clock");
ret = PTR_ERR(clk);
return ret;
}
cdrexfreq = clk_get_rate(clk) / 1000;
clk_put(clk);
clk = clk_get(NULL, "aclk_266");
if (IS_ERR(clk)) {
dev_err(dev, "Fail to get aclk_266 clock");
ret = PTR_ERR(clk);
return ret;
}
lrbusfreq = clk_get_rate(clk) / 1000;
clk_put(clk);
if (cdrexfreq == 800000) {
clkdiv_cdrex = clkdiv_cdrex_for800;
exynos5_busfreq_table_mif = exynos5_busfreq_table_for800;
exynos5_mif_volt = exynos5_mif_volt_for800;
} else if (cdrexfreq == 666857) {
clkdiv_cdrex = clkdiv_cdrex_for667;
exynos5_busfreq_table_mif = exynos5_busfreq_table_for667;
exynos5_mif_volt = exynos5_mif_volt_for667;
} else if (cdrexfreq == 533000) {
clkdiv_cdrex = clkdiv_cdrex_for533;
exynos5_busfreq_table_mif = exynos5_busfreq_table_for533;
exynos5_mif_volt = exynos5_mif_volt_for533;
} else if (cdrexfreq == 400000) {
clkdiv_cdrex = clkdiv_cdrex_for400;
exynos5_busfreq_table_mif = exynos5_busfreq_table_for400;
exynos5_mif_volt = exynos5_mif_volt_for400;
} else {
dev_err(dev, "Don't support cdrex table\n");
return -EINVAL;
}
tmp = __raw_readl(EXYNOS5_CLKDIV_LEX);
for (i = LV_0; i < LV_INT_END; i++) {
tmp &= ~(EXYNOS5_CLKDIV_LEX_ATCLK_LEX_MASK | EXYNOS5_CLKDIV_LEX_PCLK_LEX_MASK);
tmp |= ((clkdiv_lex[i][0] << EXYNOS5_CLKDIV_LEX_ATCLK_LEX_SHIFT) |
(clkdiv_lex[i][1] << EXYNOS5_CLKDIV_LEX_PCLK_LEX_SHIFT));
data->lex_divtable[i] = tmp;
}
tmp = __raw_readl(EXYNOS5_CLKDIV_R0X);
for (i = LV_0; i < LV_INT_END; i++) {
tmp &= ~EXYNOS5_CLKDIV_R0X_PCLK_R0X_MASK;
tmp |= (clkdiv_r0x[i][0] << EXYNOS5_CLKDIV_R0X_PCLK_R0X_SHIFT);
data->r0x_divtable[i] = tmp;
}
tmp = __raw_readl(EXYNOS5_CLKDIV_R1X);
for (i = LV_0; i < LV_INT_END; i++) {
tmp &= ~EXYNOS5_CLKDIV_R1X_PCLK_R1X_MASK;
tmp |= (clkdiv_r1x[i][0] << EXYNOS5_CLKDIV_R1X_PCLK_R1X_SHIFT);
data->r1x_divtable[i] = tmp;
}
tmp = __raw_readl(EXYNOS5_CLKDIV_CDREX);
if (samsung_rev() < EXYNOS5250_REV_1_0) {
for (i = LV_0; i < LV_MIF_END; i++) {
tmp &= ~(EXYNOS5_CLKDIV_CDREX_MCLK_DPHY_MASK |
EXYNOS5_CLKDIV_CDREX_MCLK_CDREX2_MASK |
EXYNOS5_CLKDIV_CDREX_ACLK_CDREX_MASK |
EXYNOS5_CLKDIV_CDREX_MCLK_CDREX_MASK |
EXYNOS5_CLKDIV_CDREX_PCLK_CDREX_MASK |
EXYNOS5_CLKDIV_CDREX_ACLK_CLK400_MASK |
EXYNOS5_CLKDIV_CDREX_ACLK_C2C200_MASK |
EXYNOS5_CLKDIV_CDREX_ACLK_EFCON_MASK);
tmp |= ((clkdiv_cdrex[i][0] << EXYNOS5_CLKDIV_CDREX_MCLK_DPHY_SHIFT) |
(clkdiv_cdrex[i][1] << EXYNOS5_CLKDIV_CDREX_MCLK_CDREX2_SHIFT) |
(clkdiv_cdrex[i][2] << EXYNOS5_CLKDIV_CDREX_ACLK_CDREX_SHIFT) |
(clkdiv_cdrex[i][3] << EXYNOS5_CLKDIV_CDREX_MCLK_CDREX_SHIFT) |
(clkdiv_cdrex[i][4] << EXYNOS5_CLKDIV_CDREX_PCLK_CDREX_SHIFT) |
(clkdiv_cdrex[i][5] << EXYNOS5_CLKDIV_CDREX_ACLK_CLK400_SHIFT) |
(clkdiv_cdrex[i][6] << EXYNOS5_CLKDIV_CDREX_ACLK_C2C200_SHIFT) |
(clkdiv_cdrex[i][8] << EXYNOS5_CLKDIV_CDREX_ACLK_EFCON_SHIFT));
data->cdrex_divtable[i] = tmp;
}
} else {
for (i = LV_0; i < LV_MIF_END; i++) {
tmp &= ~(EXYNOS5_CLKDIV_CDREX_MCLK_DPHY_MASK |
EXYNOS5_CLKDIV_CDREX_MCLK_CDREX2_MASK |
EXYNOS5_CLKDIV_CDREX_ACLK_CDREX_MASK |
EXYNOS5_CLKDIV_CDREX_MCLK_CDREX_MASK |
EXYNOS5_CLKDIV_CDREX_PCLK_CDREX_MASK |
EXYNOS5_CLKDIV_CDREX_ACLK_EFCON_MASK);
tmp |= ((clkdiv_cdrex[i][0] << EXYNOS5_CLKDIV_CDREX_MCLK_DPHY_SHIFT) |
(clkdiv_cdrex[i][1] << EXYNOS5_CLKDIV_CDREX_MCLK_CDREX2_SHIFT) |
(clkdiv_cdrex[i][2] << EXYNOS5_CLKDIV_CDREX_ACLK_CDREX_SHIFT) |
(clkdiv_cdrex[i][3] << EXYNOS5_CLKDIV_CDREX_MCLK_CDREX_SHIFT) |
(clkdiv_cdrex[i][4] << EXYNOS5_CLKDIV_CDREX_PCLK_CDREX_SHIFT) |
(clkdiv_cdrex[i][8] << EXYNOS5_CLKDIV_CDREX_ACLK_EFCON_SHIFT));
data->cdrex_divtable[i] = tmp;
}
}
if (samsung_rev() < EXYNOS5250_REV_1_0) {
tmp = __raw_readl(EXYNOS5_CLKDIV_CDREX2);
for (i = LV_0; i < LV_MIF_END; i++) {
tmp &= ~EXYNOS5_CLKDIV_CDREX2_MCLK_EFPHY_MASK;
tmp |= clkdiv_cdrex[i][7] << EXYNOS5_CLKDIV_CDREX2_MCLK_EFPHY_SHIFT;
data->cdrex2_divtable[i] = tmp;
}
}
exynos5250_set_bus_volt();
data->dev[PPMU_MIF] = dev;
data->dev[PPMU_INT] = &busfreq_for_int;
for (i = LV_0; i < LV_MIF_END; i++) {
ret = opp_add(data->dev[PPMU_MIF], exynos5_busfreq_table_mif[i].mem_clk,
exynos5_busfreq_table_mif[i].volt);
if (ret) {
dev_err(dev, "Fail to add opp entries.\n");
return ret;
}
}
#if defined(CONFIG_DP_60HZ_P11) || defined(CONFIG_DP_60HZ_P10)
if (cdrexfreq == 666857) {
opp_disable(data->dev[PPMU_MIF], 334000);
opp_disable(data->dev[PPMU_MIF], 110000);
} else if (cdrexfreq == 533000) {
opp_disable(data->dev[PPMU_MIF], 267000);
opp_disable(data->dev[PPMU_MIF], 107000);
} else if (cdrexfreq == 400000) {
opp_disable(data->dev[PPMU_MIF], 267000);
opp_disable(data->dev[PPMU_MIF], 100000);
}
#endif
for (i = LV_0; i < LV_INT_END; i++) {
ret = opp_add(data->dev[PPMU_INT], exynos5_busfreq_table_int[i].mem_clk,
exynos5_busfreq_table_int[i].volt);
if (ret) {
dev_err(dev, "Fail to add opp entries.\n");
return ret;
}
}
data->target = exynos5250_target;
data->get_table_index = exynos5250_get_table_index;
data->monitor = exynos5250_monitor;
data->busfreq_suspend = exynos5250_suspend;
data->busfreq_resume = exynos5250_resume;
data->sampling_rate = usecs_to_jiffies(100000);
data->table[PPMU_MIF] = exynos5_busfreq_table_mif;
data->table[PPMU_INT] = exynos5_busfreq_table_int;
/* Find max frequency for mif */
data->max_freq[PPMU_MIF] =
opp_get_freq(opp_find_freq_floor(data->dev[PPMU_MIF], &maxfreq));
data->min_freq[PPMU_MIF] =
opp_get_freq(opp_find_freq_ceil(data->dev[PPMU_MIF], &minfreq));
data->curr_freq[PPMU_MIF] =
opp_get_freq(opp_find_freq_ceil(data->dev[PPMU_MIF], &cdrexfreq));
/* Find max frequency for int */
maxfreq = ULONG_MAX;
minfreq = 0;
data->max_freq[PPMU_INT] =
opp_get_freq(opp_find_freq_floor(data->dev[PPMU_INT], &maxfreq));
data->min_freq[PPMU_INT] =
opp_get_freq(opp_find_freq_ceil(data->dev[PPMU_INT], &minfreq));
data->curr_freq[PPMU_INT] =
opp_get_freq(opp_find_freq_ceil(data->dev[PPMU_INT], &lrbusfreq));
data->vdd_reg[PPMU_INT] = regulator_get(NULL, "vdd_int");
if (IS_ERR(data->vdd_reg[PPMU_INT])) {
pr_err("failed to get resource %s\n", "vdd_int");
return -ENODEV;
}
data->vdd_reg[PPMU_MIF] = regulator_get(NULL, "vdd_mif");
if (IS_ERR(data->vdd_reg[PPMU_MIF])) {
pr_err("failed to get resource %s\n", "vdd_mif");
regulator_put(data->vdd_reg[PPMU_INT]);
return -ENODEV;
}
data->busfreq_early_suspend_handler.suspend = &busfreq_early_suspend;
data->busfreq_early_suspend_handler.resume = &busfreq_late_resume;
data->busfreq_early_suspend_handler.suspend = &busfreq_early_suspend;
data->busfreq_early_suspend_handler.resume = &busfreq_late_resume;
/* Request min 300MHz for MIF and 150MHz for INT*/
dev_lock(dev, dev, 300150);
register_early_suspend(&data->busfreq_early_suspend_handler);
tmp = __raw_readl(EXYNOS5_ABBG_INT_CONTROL);
tmp &= ~(0x1f | (1 << 31) | (1 << 7));
tmp |= ((8 + INT_RBB) | (1 << 31) | (1 << 7));
__raw_writel(tmp, EXYNOS5_ABBG_INT_CONTROL);
return 0;
}
int exynos5250_init(struct device *dev, struct busfreq_data *data)
{
unsigned int i;
unsigned long maxfreq = ULONG_MAX;
unsigned long minfreq = 0;
unsigned long cdrexfreq;
unsigned long lrbusfreq;
struct clk *clk;
int ret;
/* Enable pause function for DREX2 DVFS */
dmc_pause_ctrl = __raw_readl(EXYNOS5_DMC_PAUSE_CTRL);
dmc_pause_ctrl |= DMC_PAUSE_ENABLE;
__raw_writel(dmc_pause_ctrl, EXYNOS5_DMC_PAUSE_CTRL);
clk = clk_get(NULL, "mout_cdrex");
if (IS_ERR(clk)) {
dev_err(dev, "Fail to get mclk_cdrex clock");
ret = PTR_ERR(clk);
return ret;
}
cdrexfreq = clk_get_rate(clk) / 1000;
clk_put(clk);
clk = clk_get(NULL, "aclk_266");
if (IS_ERR(clk)) {
dev_err(dev, "Fail to get aclk_266 clock");
ret = PTR_ERR(clk);
return ret;
}
lrbusfreq = clk_get_rate(clk) / 1000;
clk_put(clk);
if (cdrexfreq == 800000) {
clkdiv_cdrex = clkdiv_cdrex_for800;
exynos5_busfreq_table_mif = exynos5_busfreq_table_for800;
exynos5_mif_volt = exynos5_mif_volt_for800;
} else if (cdrexfreq == 666857) {
clkdiv_cdrex = clkdiv_cdrex_for667;
exynos5_busfreq_table_mif = exynos5_busfreq_table_for667;
exynos5_mif_volt = exynos5_mif_volt_for667;
} else if (cdrexfreq == 533000) {
clkdiv_cdrex = clkdiv_cdrex_for533;
exynos5_busfreq_table_mif = exynos5_busfreq_table_for533;
exynos5_mif_volt = exynos5_mif_volt_for533;
} else if (cdrexfreq == 400000) {
clkdiv_cdrex = clkdiv_cdrex_for400;
exynos5_busfreq_table_mif = exynos5_busfreq_table_for400;
exynos5_mif_volt = exynos5_mif_volt_for400;
} else {
dev_err(dev, "Don't support cdrex table\n");
return -EINVAL;
}
exynos5250_set_bus_volt();
data->dev[PPMU_MIF] = dev;
data->dev[PPMU_INT] = &busfreq_for_int;
for (i = LV_0; i < LV_MIF_END; i++) {
ret = opp_add(data->dev[PPMU_MIF], exynos5_busfreq_table_mif[i].mem_clk,
exynos5_busfreq_table_mif[i].volt);
if (ret) {
dev_err(dev, "Fail to add opp entries.\n");
return ret;
}
}
opp_disable(data->dev[PPMU_MIF], 107000);
for (i = LV_0; i < LV_INT_END; i++) {
ret = opp_add(data->dev[PPMU_INT], exynos5_busfreq_table_int[i].mem_clk,
exynos5_busfreq_table_int[i].volt);
if (ret) {
dev_err(dev, "Fail to add opp entries.\n");
return ret;
}
}
data->target = exynos5250_target;
data->get_table_index = exynos5250_get_table_index;
data->monitor = exynos5250_monitor;
data->busfreq_suspend = exynos5250_suspend;
data->busfreq_resume = exynos5250_resume;
data->sampling_rate = usecs_to_jiffies(100000);
data->table[PPMU_MIF] = exynos5_busfreq_table_mif;
data->table[PPMU_INT] = exynos5_busfreq_table_int;
/* Find max frequency for mif */
data->max_freq[PPMU_MIF] =
opp_get_freq(opp_find_freq_floor(data->dev[PPMU_MIF], &maxfreq));
data->min_freq[PPMU_MIF] =
opp_get_freq(opp_find_freq_ceil(data->dev[PPMU_MIF], &minfreq));
data->curr_freq[PPMU_MIF] =
opp_get_freq(opp_find_freq_ceil(data->dev[PPMU_MIF], &cdrexfreq));
/* Find max frequency for int */
maxfreq = ULONG_MAX;
minfreq = 0;
data->max_freq[PPMU_INT] =
opp_get_freq(opp_find_freq_floor(data->dev[PPMU_INT], &maxfreq));
data->min_freq[PPMU_INT] =
opp_get_freq(opp_find_freq_ceil(data->dev[PPMU_INT], &minfreq));
data->curr_freq[PPMU_INT] =
opp_get_freq(opp_find_freq_ceil(data->dev[PPMU_INT], &lrbusfreq));
data->vdd_reg[PPMU_INT] = regulator_get(NULL, "vdd_int");
if (IS_ERR(data->vdd_reg[PPMU_INT])) {
pr_err("failed to get resource %s\n", "vdd_int");
return -ENODEV;
}
data->vdd_reg[PPMU_MIF] = regulator_get(NULL, "vdd_mif");
if (IS_ERR(data->vdd_reg[PPMU_MIF])) {
pr_err("failed to get resource %s\n", "vdd_mif");
regulator_put(data->vdd_reg[PPMU_INT]);
return -ENODEV;
}
data->busfreq_early_suspend_handler.suspend = &busfreq_early_suspend;
data->busfreq_early_suspend_handler.resume = &busfreq_late_resume;
/* Request min 300MHz */
dev_lock(dev, dev, 300000);
register_early_suspend(&data->busfreq_early_suspend_handler);
tmp = __raw_readl(EXYNOS5_ABBG_INT_CONTROL);
tmp &= ~(0x1f | (1 << 31) | (1 << 7));
tmp |= ((8 + INT_RBB) | (1 << 31) | (1 << 7));
__raw_writel(tmp, EXYNOS5_ABBG_INT_CONTROL);
return 0;
}
static int exynos7_devfreq_disp_target(struct device *dev,
unsigned long *target_freq,
u32 flags)
{
int ret = 0;
struct platform_device *pdev = container_of(dev, struct platform_device, dev);
struct devfreq_data_disp *data = platform_get_drvdata(pdev);
struct devfreq *devfreq_disp = data->devfreq;
struct opp *target_opp;
int target_idx, old_idx;
unsigned long target_volt;
unsigned long old_freq;
mutex_lock(&data->lock);
rcu_read_lock();
target_opp = devfreq_recommended_opp(dev, target_freq, flags);
if (IS_ERR(target_opp)) {
rcu_read_unlock();
mutex_unlock(&data->lock);
dev_err(dev, "DEVFREQ(DISP) : Invalid OPP to find\n");
return PTR_ERR(target_opp);
}
*target_freq = opp_get_freq(target_opp);
target_volt = opp_get_voltage(target_opp);
rcu_read_unlock();
target_idx = devfreq_get_opp_idx(devfreq_disp_opp_list, data->max_state,
*target_freq);
old_idx = devfreq_get_opp_idx(devfreq_disp_opp_list, data->max_state,
devfreq_disp->previous_freq);
old_freq = devfreq_disp->previous_freq;
if (target_idx < 0 || old_idx < 0) {
ret = -EINVAL;
goto out;
}
if (old_freq == *target_freq)
goto out;
#ifdef CONFIG_EXYNOS_THERMAL
target_volt = get_limit_voltage(target_volt, data->volt_offset, 0);
#endif
pr_debug("DISP LV_%d(%lu) ================> LV_%d(%lu, volt: %lu)\n",
old_idx, old_freq, target_idx, *target_freq, target_volt);
exynos_ss_freq(ESS_FLAG_DISP, old_freq, ESS_FLAG_IN);
if (old_freq < *target_freq) {
if (data->disp_set_volt)
data->disp_set_volt(data, target_volt, REGULATOR_MAX_MICROVOLT);
if (data->disp_set_freq)
data->disp_set_freq(data, target_idx, old_idx);
} else {
if (data->disp_set_freq)
data->disp_set_freq(data, target_idx, old_idx);
if (data->disp_set_volt)
data->disp_set_volt(data, target_volt, REGULATOR_MAX_MICROVOLT);
}
exynos_ss_freq(ESS_FLAG_DISP, *target_freq, ESS_FLAG_OUT);
data->cur_freq = *target_freq;
out:
mutex_unlock(&data->lock);
return ret;
}
data->curr_opp = opp;
out:
update_busfreq_stat(data, index);
mutex_unlock(&busfreq_lock);
queue_delayed_work(system_freezable_wq, &data->worker, data->sampling_rate);
}
static int exynos_buspm_notifier_event(struct notifier_block *this,
unsigned long event, void *ptr)
{
struct busfreq_data *data = container_of(this, struct busfreq_data,
exynos_buspm_notifier);
unsigned long voltage = opp_get_voltage(data->max_opp);
unsigned long freq = opp_get_freq(data->max_opp);
unsigned int index = 0;
switch (event) {
case PM_SUSPEND_PREPARE:
mutex_lock(&busfreq_lock);
data->use = false;
regulator_set_voltage(data->vdd_mif, voltage, voltage + 25000);
voltage = data->get_int_volt(freq);
regulator_set_voltage(data->vdd_int, voltage, voltage + 25000);
index = data->get_table_index(data->max_opp);
if (data->busfreq_prepare)
data->busfreq_prepare(index);
data->target(index);
data->curr_opp = data->max_opp;
mutex_unlock(&busfreq_lock);
static int exynos5_devfreq_int_target(struct device *dev,
unsigned long *target_freq,
u32 flags)
{
int ret = 0;
struct platform_device *pdev = container_of(dev, struct platform_device, dev);
struct devfreq_data_int *data = platform_get_drvdata(pdev);
struct devfreq *devfreq_int = data->devfreq;
struct opp *target_opp;
int target_idx, old_idx;
unsigned long target_volt;
unsigned long old_freq;
mutex_lock(&data->lock);
rcu_read_lock();
target_opp = devfreq_recommended_opp(dev, target_freq, flags);
if (IS_ERR(target_opp)) {
rcu_read_unlock();
mutex_unlock(&data->lock);
dev_err(dev, "DEVFREQ(INT) : Invalid OPP to find\n");
ret = PTR_ERR(target_opp);
goto out;
}
*target_freq = opp_get_freq(target_opp);
target_volt = opp_get_voltage(target_opp);
#ifdef CONFIG_EXYNOS_THERMAL
target_volt = get_limit_voltage(target_volt, data->volt_offset);
#endif
/* just want to save voltage before apply constraint with isp */
data->target_volt = target_volt;
if (target_volt < data->volt_constraint_isp)
target_volt = data->volt_constraint_isp;
rcu_read_unlock();
target_idx = exynos5_devfreq_get_idx(devfreq_int_opp_list, data->max_state,
*target_freq);
old_idx = exynos5_devfreq_get_idx(devfreq_int_opp_list, data->max_state,
devfreq_int->previous_freq);
old_freq = devfreq_int->previous_freq;
if (target_idx < 0 || old_idx < 0) {
ret = -EINVAL;
goto out;
}
if (old_freq == *target_freq)
goto out;
pr_debug("INT %lu ===================> %lu\n", old_freq, *target_freq);
if (old_freq < *target_freq) {
if (data->int_set_volt)
data->int_set_volt(data, target_volt, target_volt + VOLT_STEP);
set_match_abb(ID_INT, data->int_asv_abb_table[target_idx]);
if (data->int_set_freq)
data->int_set_freq(data, target_idx, old_idx);
} else {
if (data->int_set_freq)
data->int_set_freq(data, target_idx, old_idx);
set_match_abb(ID_INT, data->int_asv_abb_table[target_idx]);
if (data->int_set_volt)
data->int_set_volt(data, target_volt, target_volt + VOLT_STEP);
}
out:
mutex_unlock(&data->lock);
return ret;
}
static int mali_kbase_devfreq_target(struct device *dev, unsigned long *_freq,
u32 flags)
{
struct kbase_device *kbdev = (struct kbase_device *)dev->platform_data;
unsigned long old_freq = kbdev->devfreq->previous_freq;
struct opp *opp = NULL;
unsigned long freq;
#if KBASE_HI3635_GPU_IRDROP_ISSUE
struct kbase_pm_policy *cur_policy;
#endif /* KBASE_HI3635_GPU_IRDROP_ISSUE */
rcu_read_lock();
opp = devfreq_recommended_opp(dev, _freq, flags);
if (IS_ERR(opp)) {
printk("[mali-midgard] Failed to get Operating Performance Point\n");
rcu_read_unlock();
return PTR_ERR(opp);
}
freq = opp_get_freq(opp);
rcu_read_unlock();
if (old_freq == freq)
return 0;
#if KBASE_HI3635_GPU_IRDROP_ISSUE
/* switch policy to always_on */
if(old_freq <= KBASE_HI3635_GPU_TURBO_FREQ && freq > KBASE_HI3635_GPU_TURBO_FREQ ) {
sw_policy.freq = freq;
strncpy(sw_policy.name, "always_on", strlen("always_on") + 1);
schedule_work(&sw_policy.update);
goto exit;
}
/* warn on work doesn't finish yet.*/
cur_policy = kbase_pm_get_policy(kbdev);
if (cur_policy == NULL || ((freq > KBASE_HI3635_GPU_TURBO_FREQ)
&& strncmp(cur_policy->name, "always_on", strlen("always_on")))){
WARN_ON(1);
/* restore the freq */
*_freq = old_freq;
goto exit;
}
#endif /* KBASE_HI3635_GPU_IRDROP_ISSUE */
printk("[mali-midgard] dvfs call clk_set_rate, old_freq = %lu -----> new_freq = %lu \n", old_freq, freq);
if (clk_set_rate((kbdev->clk), freq)) {
printk("[mali-midgard] Failed to set gpu freqency, [%lu->%lu]\n", old_freq, freq);
return -ENODEV;
}
#if KBASE_HI3635_GPU_IRDROP_ISSUE
if(old_freq > KBASE_HI3635_GPU_TURBO_FREQ && freq <= KBASE_HI3635_GPU_TURBO_FREQ) {
strncpy(sw_policy.name, "demand", strlen("demand") + 1);
schedule_work(&sw_policy.update);
}
#endif /* KBASE_HI3635_GPU_IRDROP_ISSUE */
exit:
return 0;
}