Patch "drm/radeon/dpm: don't add pwm attributes if DPM is disabled" has been added to the 4.2-stable tree

Patch "drm/radeon/dpm: don't add pwm attributes if DPM is disabled" has been added to the 4.2-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    drm/radeon/dpm: don't add pwm attributes if DPM is disabled

to the 4.2-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-radeon-dpm-don-t-add-pwm-attributes-if-dpm-is-disabled.patch
and it can be found in the queue-4.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 2a7d44f47f53fa1be677f44c73d78b1bcf9c05d9 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Mon, 19 Oct 2015 09:30:42 -0400
Subject: drm/radeon/dpm: don't add pwm attributes if DPM is disabled

From: Alex Deucher <alexander.deucher@amd.com>

commit 2a7d44f47f53fa1be677f44c73d78b1bcf9c05d9 upstream.

PWM fan control is only available with DPM.  If DPM disabled,
don't expose the PWM fan controls to avoid a crash.

Bug:
https://bugs.freedesktop.org/show_bug.cgi?id=92524

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/gpu/drm/radeon/radeon_pm.c |    8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -720,10 +720,14 @@ static umode_t hwmon_attributes_visible(
 	struct radeon_device *rdev = dev_get_drvdata(dev);
 	umode_t effective_mode = attr->mode;
 
-	/* Skip limit attributes if DPM is not enabled */
+	/* Skip attributes if DPM is not enabled */
 	if (rdev->pm.pm_method != PM_METHOD_DPM &&
 	    (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr ||
-	     attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr))
+	     attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1_enable.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1_max.dev_attr.attr ||
+	     attr == &sensor_dev_attr_pwm1_min.dev_attr.attr))
 		return 0;
 
 	/* Skip fan attributes if fan is not present */


Patches currently in stable-queue which might be from alexander.deucher@amd.com are

queue-4.2/drm-radeon-move-bl-encoder-assignment-into-bl-init.patch
queue-4.2/drm-amdgpu-add-missing-dpm-check-for-kv-dpm-late-init.patch
queue-4.2/drm-radeon-fix-dpms-when-driver-backlight-control-is-disabled.patch
queue-4.2/drm-amdgpu-don-t-try-to-recreate-sysfs-entries-on-resume.patch
queue-4.2/drm-radeon-don-t-try-to-recreate-sysfs-entries-on-resume.patch
queue-4.2/drm-radeon-dpm-don-t-add-pwm-attributes-if-dpm-is-disabled.patch