[PATCH] drm/amd/amdgpu: hide voltage and power sensors on SI and KV parts

[Jean Delvare]

The driver does not support these sensors yet and there is no point in
creating sysfs attributes which will always return an error.

Signed-off-by: Jean Delvare <jdelvare at suse.de>
Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: "Christian König" <christian.koenig at amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou at amd.com>
---
This works for me however I couldn't seen any other place in the driver
where adev->family is tested directly like that, so I'm not sure if
this is the right way to perform the test?

 drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c |   10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

--- linux-5.2.orig/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c	2019-08-28 09:38:11.245376539 +0200
+++ linux-5.2/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c	2019-08-28 09:58:59.896314948 +0200
@@ -2150,7 +2150,9 @@ static umode_t hwmon_attributes_visible(
 			effective_mode &= ~S_IWUSR;
 	}
 
-	if ((adev->flags & AMD_IS_APU) &&
+	if (((adev->flags & AMD_IS_APU) ||
+	     adev->family == AMDGPU_FAMILY_SI ||	/* not implemented yet */
+	     adev->family == AMDGPU_FAMILY_KV) &&	/* not implemented yet */
 	    (attr == &sensor_dev_attr_power1_average.dev_attr.attr ||
 	     attr == &sensor_dev_attr_power1_cap_max.dev_attr.attr ||
 	     attr == &sensor_dev_attr_power1_cap_min.dev_attr.attr||
@@ -2174,6 +2176,12 @@ static umode_t hwmon_attributes_visible(
 			return 0;
 	}
 
+	if ((adev->family == AMDGPU_FAMILY_SI ||	/* not implemented yet */
+	     adev->family == AMDGPU_FAMILY_KV) &&	/* not implemented yet */
+	    (attr == &sensor_dev_attr_in0_input.dev_attr.attr ||
+	     attr == &sensor_dev_attr_in0_label.dev_attr.attr))
+		return 0;
+
 	/* only APUs have vddnb */
 	if (!(adev->flags & AMD_IS_APU) &&
 	    (attr == &sensor_dev_attr_in1_input.dev_attr.attr ||


-- 
Jean Delvare
SUSE L3 Support