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PM / devfreq: rockchip_dmc: Add sysfs interface for ondemand_data

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Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
Change-Id: I399a78aa2f63b266824a5cd302328a0d3e2aadcd
This commit is contained in:
Finley Xiao
2021-08-20 17:14:11 +08:00
committed by Tao Huang
parent 23333b7bbf
commit c2636d3312
1 changed files with 66 additions and 0 deletions
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66
drivers/devfreq/rockchip_dmc.c
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@@ -2349,6 +2349,64 @@ static ssize_t rockchip_dmcfreq_status_store(struct device *dev,
static DEVICE_ATTR(system_status, 0644, rockchip_dmcfreq_status_show,
rockchip_dmcfreq_status_store);
static ssize_t upthreshold_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct rockchip_dmcfreq *dmcfreq = dev_get_drvdata(dev->parent);
struct rockchip_dmcfreq_ondemand_data *data = &dmcfreq->ondemand_data;
return sprintf(buf, "%d\n", data->upthreshold);
}
static ssize_t upthreshold_store(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t count)
{
struct rockchip_dmcfreq *dmcfreq = dev_get_drvdata(dev->parent);
struct rockchip_dmcfreq_ondemand_data *data = &dmcfreq->ondemand_data;
unsigned int value;
if (kstrtouint(buf, 10, &value))
return -EINVAL;
data->upthreshold = value;
return count;
}
static DEVICE_ATTR_RW(upthreshold);
static ssize_t downdifferential_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct rockchip_dmcfreq *dmcfreq = dev_get_drvdata(dev->parent);
struct rockchip_dmcfreq_ondemand_data *data = &dmcfreq->ondemand_data;
return sprintf(buf, "%d\n", data->downdifferential);
}
static ssize_t downdifferential_store(struct device *dev,
struct device_attribute *attr,
const char *buf,
size_t count)
{
struct rockchip_dmcfreq *dmcfreq = dev_get_drvdata(dev->parent);
struct rockchip_dmcfreq_ondemand_data *data = &dmcfreq->ondemand_data;
unsigned int value;
if (kstrtouint(buf, 10, &value))
return -EINVAL;
data->downdifferential = value;
return count;
}
static DEVICE_ATTR_RW(downdifferential);
static int devfreq_dmc_ondemand_func(struct devfreq *df,
unsigned long *freq)
{
@@ -2776,6 +2834,14 @@ static void rockchip_dmcfreq_add_interface(struct rockchip_dmcfreq *dmcfreq)
{
struct devfreq *devfreq = dmcfreq->info.devfreq;
if (sysfs_create_file(&devfreq->dev.kobj, &dev_attr_upthreshold.attr))
dev_err(dmcfreq->dev,
"failed to register upthreshold sysfs file\n");
if (sysfs_create_file(&devfreq->dev.kobj,
&dev_attr_downdifferential.attr))
dev_err(dmcfreq->dev,
"failed to register downdifferential sysfs file\n");
if (!rockchip_add_system_status_interface(&devfreq->dev))
return;
if (sysfs_create_file(&devfreq->dev.kobj,