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path: root/drivers/gpu/drm/nouveau/nouveau_hwmon.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_hwmon.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_hwmon.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_hwmon.c b/drivers/gpu/drm/nouveau/nouveau_hwmon.c
index 08a1ab6b150d..6af2d299c3f9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_hwmon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_hwmon.c
@@ -428,6 +428,8 @@ nouveau_temp_read(struct device *dev, u32 attr, int channel, long *val)
switch (attr) {
case hwmon_temp_input:
+ if (drm_dev->switch_power_state != DRM_SWITCH_POWER_ON)
+ return -EINVAL;
ret = nvkm_therm_temp_get(therm);
*val = ret < 0 ? ret : (ret * 1000);
break;
@@ -474,6 +476,8 @@ nouveau_fan_read(struct device *dev, u32 attr, int channel, long *val)
switch (attr) {
case hwmon_fan_input:
+ if (drm_dev->switch_power_state != DRM_SWITCH_POWER_ON)
+ return -EINVAL;
*val = nvkm_therm_fan_sense(therm);
break;
default:
@@ -496,6 +500,8 @@ nouveau_in_read(struct device *dev, u32 attr, int channel, long *val)
switch (attr) {
case hwmon_in_input:
+ if (drm_dev->switch_power_state != DRM_SWITCH_POWER_ON)
+ return -EINVAL;
ret = nvkm_volt_get(volt);
*val = ret < 0 ? ret : (ret / 1000);
break;
@@ -527,6 +533,8 @@ nouveau_pwm_read(struct device *dev, u32 attr, int channel, long *val)
*val = therm->attr_get(therm, NVKM_THERM_ATTR_FAN_MODE);
break;
case hwmon_pwm_input:
+ if (drm_dev->switch_power_state != DRM_SWITCH_POWER_ON)
+ return -EINVAL;
*val = therm->fan_get(therm);
break;
default:
@@ -548,6 +556,8 @@ nouveau_power_read(struct device *dev, u32 attr, int channel, long *val)
switch (attr) {
case hwmon_power_input:
+ if (drm_dev->switch_power_state != DRM_SWITCH_POWER_ON)
+ return -EINVAL;
*val = nvkm_iccsense_read_all(iccsense);
break;
case hwmon_power_max: