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d14d2a8453
linux/drivers/gpu/drm
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Lukas Wunner d14d2a8453 drm: Remove dev_pm_ops from drm_class 
The PM core introduced the ability to keep devices runtime suspended
during the entire system suspend/resume process with commit aae4518b31
("PM / sleep: Mechanism to avoid resuming runtime-suspended devices
unnecessarily"). Before this so-called "direct-complete" procedure was
introduced, devices were always runtime resumed only to be immediately
put to sleep again using their ->suspend hook. Direct-complete is
enabled by returning a positive value from the ->prepare hook. The PCI
core usually does this automatically.

Direct-complete is only available for a device if all children use it as
well. Currently we cannot support direct-complete for DRM drivers
because the DRM core automatically registers multiple DRM minors which
belong to device class drm_class, and drm_class uses a struct dev_pm_ops
which lacks the ->prepare callback.

While this could be solved by adding the missing ->prepare callback,
closer inspection shows that there are no DRM drivers left which declare
the legacy ->suspend and ->resume callbacks in their drm_driver struct.
The last ones to remove them were i915 with commit 1751fcf9f9
("drm/i915: Fix module initialisation, v2.") and exynos with commit
e7fefb1d5a ("drm/exynos: remove legacy ->suspend()/resume()").

Consequently the struct dev_pm_ops of drm_class is now dead code. Remove
it. If no dev_pm_ops is declared for a device, the PM core automatically
enables direct-complete for it, thereby making that mechanism available
to the parent DRM PCI devices.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/da848fcd5ca72a35d9a722e644719977a47bb7ba.1465382836.git.lukas@wunner.de
2016-06-09 08:43:25 +02:00
..
amd drm/core: Change declaration for gamma_set. 2016-06-07 15:30:09 +02:00
arc Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
arm Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
armada Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
ast Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
atmel-hlcdc Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
bochs drm/bochs: Use lockless gem BO free callback 2016-06-01 09:40:16 +02:00
bridge drm/bridge: Add Analogix anx78xx support 2016-05-12 11:32:14 +02:00
cirrus Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
etnaviv dma-buf/fence: make fence context 64 bit v2 2016-06-02 08:27:41 +02:00
exynos drm/exynos: Use for_each_crtc_in_state 2016-06-02 15:51:45 +02:00
fsl-dcu drm/fls-dcu: Use lockless gem BO free callback 2016-06-01 09:40:25 +02:00
gma500 drm/core: Change declaration for gamma_set. 2016-06-07 15:30:09 +02:00
hisilicon drm/hisilicon: Use lockless gem BO free callback 2016-05-31 13:28:58 +02:00
i2c
i810
i915 omapdrm changes for 4.8 2016-06-09 12:20:11 +10:00
imx drm/imx: plane: Don't set plane->crtc in ipu_plane_update() 2016-05-30 09:14:00 +02:00
mediatek Linux 4.7-rc2 2016-06-09 11:01:49 +10:00
mga
mgag200 Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
msm Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
nouveau Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
omapdrm omapdrm changes for 4.8 2016-06-09 12:20:11 +10:00
panel drm/panel: simple: Add support for TPK U.S.A. LLC Fusion 7" and 10.1" panels 2016-05-12 11:32:14 +02:00
qxl Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
r128
radeon drm/core: Change declaration for gamma_set. 2016-06-07 15:30:09 +02:00
rcar-du Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
rockchip Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
savage
shmobile Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
sis
sti drm/sti: Use lockless gem BO free callback 2016-06-01 09:41:37 +02:00
sun4i drm/sun4i: Use lockless gem BO free callback 2016-06-01 09:42:01 +02:00
tdfx
tegra Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2016-05-23 11:48:48 -07:00
tilcdc drm/tilcdc: Use lockless gem BO free callback 2016-06-01 09:41:02 +02:00
ttm Linux 4.6-rc7 2016-05-09 13:49:56 +10:00
udl drm/udl: use drm_crtc_send_vblank_event() 2016-06-06 18:03:06 +02:00
vc4 drm/core: Change declaration for gamma_set. 2016-06-07 15:30:09 +02:00
vgem drm/vgem: Use lockless gem BO free callback 2016-05-31 15:28:10 +02:00
via mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros 2016-04-04 10:41:08 -07:00
virtio Merge branch 'virtio-gpu-for-airlied' of git://git.kraxel.org/linux into drm-next 2016-06-09 12:14:24 +10:00
vmwgfx drm/core: Change declaration for gamma_set. 2016-06-07 15:30:09 +02:00
ati_pcigart.c
drm_agpsupport.c drm: Give drm_agp_clear drm_legacy_ prefix 2016-04-27 08:41:34 +02:00
drm_atomic_helper.c drm/atomic: Fix remaining places where !funcs->best_encoder is valid 2016-06-07 16:38:58 +02:00
drm_atomic.c Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
drm_auth.c
drm_bridge.c drm/doc: Switch to sphinx/rst fixed-width quoting 2016-06-03 20:58:24 +02:00
drm_bufs.c drm: Hide master MAP cleanup in drm_bufs.c 2016-04-27 10:14:17 +02:00
drm_cache.c x86/cpufeature: Remove cpu_has_clflush 2016-03-31 13:35:09 +02:00
drm_context.c
drm_crtc_helper.c drm: drm_helper_crtc_enable_color_mgmt() => drm_crtc_enable_color_mgmt() 2016-06-07 17:10:49 +03:00
drm_crtc_internal.h drm/mode: rework drm_mode_object_put to drm_mode_object_unregister. 2016-04-22 10:26:37 +10:00
drm_crtc.c omapdrm changes for 4.8 2016-06-09 12:20:11 +10:00
drm_debugfs.c
drm_dma.c
drm_dp_aux_dev.c drm/dp: Allow signals to interrupt drm_aux-dev reads/writes 2016-04-28 11:48:09 +02:00
drm_dp_dual_mode_helper.c drm: Add helper for DP++ adaptors 2016-05-23 11:10:46 +03:00
drm_dp_helper.c drm/dp_helper: Perform throw-away read before actual read in drm_dp_dpcd_read() 2016-04-22 18:52:24 +02:00
drm_dp_mst_topology.c Linux 4.6-rc7 2016-05-09 13:49:56 +10:00
drm_drv.c drm: Remove dev_pm_ops from drm_class 2016-06-09 08:43:25 +02:00
drm_edid_load.c Fix annoyingly awkward typo in drm_edid_load.c 2016-05-30 09:59:28 +02:00
drm_edid.c drm/edid: add displayid detailed 1 timings to the modelist. (v1.1) 2016-05-23 11:35:31 +10:00
drm_encoder_slave.c
drm_fb_cma_helper.c Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
drm_fb_helper.c drm/atomic: Fix remaining places where !funcs->best_encoder is valid 2016-06-07 16:38:58 +02:00
drm_flip_work.c
drm_fops.c drm/doc: Switch to sphinx/rst fixed-width quoting 2016-06-03 20:58:24 +02:00
drm_gem_cma_helper.c drm: Wrap direct calls to driver->gem_free_object from CMA 2016-06-01 15:00:28 +10:00
drm_gem.c drm/doc: Appease sphinx 2016-06-02 16:25:20 +02:00
drm_global.c
drm_hashtab.c
drm_info.c drm: Protect dev->filelist with its own mutex 2016-04-27 10:16:17 +02:00
drm_internal.h drm: Make drm_vm_open/close_locked private to drm_vm.c 2016-04-27 10:15:56 +02:00
drm_ioc32.c
drm_ioctl.c drm: Move drm_getmap into drm_bufs.c and give it a legacy prefix 2016-04-27 08:42:48 +02:00
drm_irq.c drm/doc: Drop kerneldoc for static functions in drm_irq.c 2016-06-03 20:57:54 +02:00
drm_kms_helper_common.c
drm_legacy.h drm: Move drm_getmap into drm_bufs.c and give it a legacy prefix 2016-04-27 08:42:48 +02:00
drm_lock.c
drm_memory.c
drm_mipi_dsi.c drm/dsi: Implement set tear scanline 2016-06-07 21:44:29 +02:00
drm_mm.c drm/mm: avoid possible null pointer dereference 2016-05-23 14:56:11 +02:00
drm_modes.c Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-06-09 11:19:28 +10:00
drm_modeset_lock.c drm/doc: Switch to sphinx/rst fixed-width quoting 2016-06-03 20:58:24 +02:00
drm_of.c
drm_panel.c drm/panel: Flesh out kerneldoc 2016-05-06 16:04:48 +02:00
drm_pci.c drm: Give drm_agp_clear drm_legacy_ prefix 2016-04-27 08:41:34 +02:00
drm_plane_helper.c drm/doc: Appease sphinx 2016-06-02 16:25:20 +02:00
drm_platform.c
drm_prime.c drm: Remove unused drm_device from drm_gem_object_lookup() 2016-05-17 08:47:30 +02:00
drm_probe_helper.c drm: Only create a cmdline mode if no probed modes match 2016-06-02 15:10:22 +02:00
drm_rect.c
drm_scatter.c
drm_sysfs.c drm: Remove dev_pm_ops from drm_class 2016-06-09 08:43:25 +02:00
drm_trace_points.c
drm_trace.h
drm_vm.c drm: Make drm_vm_open/close_locked private to drm_vm.c 2016-04-27 10:15:56 +02:00
drm_vma_manager.c drm/doc: Switch to sphinx/rst fixed-width quoting 2016-06-03 20:58:24 +02:00
Kconfig drm/mediatek: Add DRM Driver for Mediatek SoC MT8173. 2016-05-06 17:47:35 +02:00
Makefile Merge tag 'drm-intel-next-fixes-2016-05-25' of git://anongit.freedesktop.org/drm-intel into drm-next 2016-05-27 16:08:38 +10:00