drm/amdgpu: Add APTX quirk for Dell Latitude 5495
commit 317a3aaef94d73ba6be88aea11b41bb631b2d581 upstream. Needs ATPX rather than _PR3 to really turn off the dGPU. This can save ~5W when dGPU is runtime-suspended. Signed-off-by: NKai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>
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