[PATCH 9/9] drm/amd: Hide unsupported power attributes

[Mario Limonciello]

Some ASICS only offer one type of power attribute, so in the visible
callback check whether the attributes are supported and hide if not
supported.

Signed-off-by: Mario Limonciello <mario.limonciello at amd.com>
---
 drivers/gpu/drm/amd/pm/amdgpu_pm.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index 8133d968f75b9..5b1d73b00ef73 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -3179,6 +3179,7 @@ static umode_t hwmon_attributes_visible(struct kobject *kobj,
 	struct amdgpu_device *adev = dev_get_drvdata(dev);
 	umode_t effective_mode = attr->mode;
 	uint32_t gc_ver = adev->ip_versions[GC_HWIP][0];
+	uint32_t tmp;
 
 	/* under multi-vf mode, the hwmon attributes are all not supported */
 	if (amdgpu_sriov_vf(adev) && !amdgpu_sriov_is_pp_one_vf(adev))
@@ -3264,6 +3265,14 @@ static umode_t hwmon_attributes_visible(struct kobject *kobj,
 	    (attr == &sensor_dev_attr_power1_average.dev_attr.attr))
 		return 0;
 
+	/* not all products support both average and instantaneous */
+	if (attr == &sensor_dev_attr_power1_average.dev_attr.attr &&
+	    amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_GPU_AVG_POWER, (void *)&tmp) == -EOPNOTSUPP)
+		return 0;
+	if (attr == &sensor_dev_attr_power1_input.dev_attr.attr &&
+	    amdgpu_hwmon_get_sensor_generic(adev, AMDGPU_PP_SENSOR_GPU_INPUT_POWER, (void *)&tmp) == -EOPNOTSUPP)
+		return 0;
+
 	/* hide max/min values if we can't both query and manage the fan */
 	if (((amdgpu_dpm_set_fan_speed_pwm(adev, U32_MAX) == -EOPNOTSUPP) &&
 	      (amdgpu_dpm_get_fan_speed_pwm(adev, NULL) == -EOPNOTSUPP) &&
-- 
2.34.1