4.18-stable review patch. If anyone has any objections, please let me know.
------------------ From: Chris Wilson <[email protected]> commit 75eef0f1ed478284911b8723a5bdb659499a7aac upstream. The LPE audio is a child device of i915, it is powered up and down alongside the igfx and presents no independent runtime interface. This aptly fulfils the description of a "No-Callback" Device, so mark it thus. Fixes: 183c00350ccd ("drm/i915: Fix runtime PM for LPE audio") Testcase: igt/pm_rpm/basic-pci-d3-state Testcase: igt/pm_rpm/basic-rte Signed-off-by: Chris Wilson <[email protected]> Cc: Takashi Iwai <[email protected]> Cc: Pierre-Louis Bossart <[email protected]> Cc: Ville Syrjälä <[email protected]> Cc: [email protected] Reviewed-by: Joonas Lahtinen <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] (cherry picked from commit 46e831abe864a6b59fa3de253a681c0f2ee1bf2f) Signed-off-by: Rodrigo Vivi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/gpu/drm/i915/intel_lpe_audio.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) --- a/drivers/gpu/drm/i915/intel_lpe_audio.c +++ b/drivers/gpu/drm/i915/intel_lpe_audio.c @@ -127,9 +127,7 @@ lpe_audio_platdev_create(struct drm_i915 return platdev; } - pm_runtime_forbid(&platdev->dev); - pm_runtime_set_active(&platdev->dev); - pm_runtime_enable(&platdev->dev); + pm_runtime_no_callbacks(&platdev->dev); return platdev; }
