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Imre Deak authored
pm_runtime_{use,dont_use}_autosuspend() controls whether the device's sysfs power/autosuspend_delay_ms file is writeable or returns -EIO on access to user space. Since commit 25b181b4 Author: Imre Deak <imre.deak@intel.com> Date: Thu Dec 17 13:44:56 2015 +0200 drm/i915: get a permanent RPM reference on platforms w/o RPM support this sysfs file is writeable also on platforms without RPM support, but userspace (at least IGT) depends on this file being unchangable to determine whether the device supports runtime PM at all. So restore the old behavior. This gets rid of igt/pm_rpm failures on old platforms without RPM support, where the test should be skipped. Testcase: igt/pm_rpm/basic-rte Signed-off-by:
Imre Deak <imre.deak@intel.com> Reviewed-by:
David Weinehall <david.weinehall@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1450371873-878-1-git-send-email-imre.deak@intel.com
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