diff options
Diffstat (limited to 'drivers/gpu/msm/kgsl_pwrctrl.c')
| -rw-r--r-- | drivers/gpu/msm/kgsl_pwrctrl.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/gpu/msm/kgsl_pwrctrl.c b/drivers/gpu/msm/kgsl_pwrctrl.c index d71c6a63f2d3..172de7406c26 100644 --- a/drivers/gpu/msm/kgsl_pwrctrl.c +++ b/drivers/gpu/msm/kgsl_pwrctrl.c @@ -1387,6 +1387,47 @@ done: return 0; } +static ssize_t kgsl_pwrctrl_pwrscale_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct kgsl_device *device = kgsl_device_from_dev(dev); + int ret; + unsigned int enable = 0; + + if (device == NULL) + return 0; + + ret = kgsl_sysfs_store(buf, &enable); + if (ret) + return ret; + + mutex_lock(&device->mutex); + + if (enable) + kgsl_pwrscale_enable(device); + else + kgsl_pwrscale_disable(device, false); + + mutex_unlock(&device->mutex); + + return count; +} + +static ssize_t kgsl_pwrctrl_pwrscale_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct kgsl_device *device = kgsl_device_from_dev(dev); + struct kgsl_pwrscale *psc; + + if (device == NULL) + return 0; + psc = &device->pwrscale; + + return snprintf(buf, PAGE_SIZE, "%u\n", psc->enabled); +} + static DEVICE_ATTR(gpuclk, 0644, kgsl_pwrctrl_gpuclk_show, kgsl_pwrctrl_gpuclk_store); static DEVICE_ATTR(max_gpuclk, 0644, kgsl_pwrctrl_max_gpuclk_show, @@ -1449,6 +1490,9 @@ static DEVICE_ATTR(clock_mhz, 0444, kgsl_pwrctrl_clock_mhz_show, NULL); static DEVICE_ATTR(freq_table_mhz, 0444, kgsl_pwrctrl_freq_table_mhz_show, NULL); static DEVICE_ATTR(temp, 0444, kgsl_pwrctrl_temp_show, NULL); +static DEVICE_ATTR(pwrscale, 0644, + kgsl_pwrctrl_pwrscale_show, + kgsl_pwrctrl_pwrscale_store); static const struct device_attribute *pwrctrl_attr_list[] = { &dev_attr_gpuclk, @@ -1477,6 +1521,7 @@ static const struct device_attribute *pwrctrl_attr_list[] = { &dev_attr_clock_mhz, &dev_attr_freq_table_mhz, &dev_attr_temp, + &dev_attr_pwrscale, NULL }; |