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8581f1b5ee
linux/drivers/gpu/drm
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Ville Syrjälä 8581f1b5ee drm/i915: Force VDD off on the new power seqeuencer before starting to use it 
Apparently some VLV BIOSen like to leave the VDD force bit enabled
even for power seqeuncers that aren't properly hooked up to any
port. That will result in a imbalance in the AUX power domain
refcount when we stat to use said power sequencer as edp_panel_vdd_on()
will not grab the power domain reference if it sees that the VDD is
already on.

To fix this let's make sure we turn off the VDD force bit when we
initialize the power sequencer registers. That is, unless it's
being done from the init path since there we are actually
initializing the registers for the current power sequencer and
we don't want to turn VDD off needlessly as that would require
waiting for the power cycle delay before we turn it back on.

This fixes the following kind of warnings:
WARNING: CPU: 0 PID: 123 at ../drivers/gpu/drm/i915/intel_runtime_pm.c:1455 intel_display_power_put+0x13a/0x170 [i915]()
WARN_ON(!power_domains->domain_use_count[domain])
...

v2: Fix typos in comment (David)

Cc: stable@vger.kernel.org
Cc: Matwey V. Kornilov <matwey.kornilov@gmail.com>
Tested-by: Matwey V. Kornilov <matwey.kornilov@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98695
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161220165117.24801-1-ville.syrjala@linux.intel.com
Reviewed-by: David Weinehall <david.weinehall@linux.intel.com>
(cherry picked from commit 5d5ab2d26f)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2017-01-03 11:36:11 +02:00
..
amd ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
arc Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next 2016-12-06 10:26:48 +01:00
arm Linux 4.9-rc8 2016-12-05 17:11:48 +10:00
armada mm: use vmf->address instead of of vmf->virtual_address 2016-12-14 16:04:09 -08:00
ast drivers/gpu/drm/ast: Fix infinite loop if read fails 2016-12-18 14:39:50 +01:00
atmel-hlcdc drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs 2016-11-02 11:33:47 -04:00
bochs drm: Make the connector .detect() callback optional 2016-12-01 10:05:53 -05:00
bridge drm/bridge: analogix: Don't return -EINVAL when panel doesn't support PSR 2016-12-07 08:27:36 +05:30
cirrus drm: Make the connector .detect() callback optional 2016-12-01 10:05:53 -05:00
etnaviv mm: use vmf->address instead of of vmf->virtual_address 2016-12-14 16:04:09 -08:00
exynos mm: use vmf->address instead of of vmf->virtual_address 2016-12-14 16:04:09 -08:00
fsl-dcu Merge tag 'drm-fsl-dcu-for-next' of http://git.agner.ch/git/linux-drm-fsl-dcu into drm-next 2016-12-09 12:43:17 +10:00
gma500 mm: use vmf->address instead of of vmf->virtual_address 2016-12-14 16:04:09 -08:00
hisilicon drm: Make the connector .detect() callback optional 2016-12-01 10:05:53 -05:00
i2c drm/i2c: tda998x: fix spelling mistake 2016-11-18 00:00:40 +00:00
i810 drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs 2016-11-02 11:33:47 -04:00
i915 drm/i915: Force VDD off on the new power seqeuencer before starting to use it 2017-01-03 11:36:11 +02:00
imx Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next 2016-12-06 10:26:48 +01:00
mediatek Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next 2016-12-06 10:26:48 +01:00
meson drm: Add support for Amlogic Meson Graphic Controller 2016-12-01 10:07:20 +01:00
mga
mgag200 drm: Make the connector .detect() callback optional 2016-12-01 10:05:53 -05:00
msm mm: use vmf->address instead of of vmf->virtual_address 2016-12-14 16:04:09 -08:00
mxsfb drm: mxsfb: Select DRM_PANEL 2016-12-08 10:25:37 +10:00
nouveau ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
omapdrm mm: use vmf->address instead of of vmf->virtual_address 2016-12-14 16:04:09 -08:00
panel drm/panel: simple: Add support for AUO G185HAN01 2016-12-06 17:06:32 +01:00
qxl Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next 2016-12-06 10:26:48 +01:00
r128
radeon Merge branches 'acpica' and 'acpi-scan' 2016-12-22 14:34:24 +01:00
rcar-du drm: Make the connector .detect() callback optional 2016-12-01 10:05:53 -05:00
rockchip drm: Make the connector .detect() callback optional 2016-12-01 10:05:53 -05:00
savage drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs 2016-11-02 11:33:47 -04:00
shmobile drm: Make the connector .detect() callback optional 2016-12-01 10:05:53 -05:00
sis drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs 2016-11-02 11:33:47 -04:00
sti drm: Make the connector .detect() callback optional 2016-12-01 10:05:53 -05:00
sun4i Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next 2016-12-06 10:26:48 +01:00
tdfx drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs 2016-11-02 11:33:47 -04:00
tegra mm: use vmf->address instead of of vmf->virtual_address 2016-12-14 16:04:09 -08:00
tilcdc ktime: Cleanup ktime_set() usage 2016-12-25 17:21:22 +01:00
ttm mm: use vmf->address instead of of vmf->virtual_address 2016-12-14 16:04:09 -08:00
udl mm: use vmf->address instead of of vmf->virtual_address 2016-12-14 16:04:09 -08:00
vc4 This pull request brings in VEC (TV-out) support for vc4, along with a 2016-12-13 12:05:12 +10:00
vgem mm: use vmf->address instead of of vmf->virtual_address 2016-12-14 16:04:09 -08:00
via drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs 2016-11-02 11:33:47 -04:00
virtio drm/virtio: annotate virtio_gpu_queue_ctrl_buffer_locked 2016-12-15 06:59:17 +02:00
vmwgfx drm/vmwgfx: Switch to mode_cmd2 2016-12-02 17:15:20 +01:00
zte drm: zte: checking for NULL instead of IS_ERR() 2016-11-15 11:00:42 +01:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic_helper.c drm/atomic: doc: remove old comment about nonblocking commits 2016-12-06 16:28:30 -02:00
drm_atomic.c This pull request brings in VEC (TV-out) support for vc4, along with a 2016-12-13 12:05:12 +10:00
drm_auth.c
drm_blend.c
drm_bridge.c
drm_bufs.c
drm_cache.c
drm_color_mgmt.c drm/color: document NULL values and default settings better 2016-11-15 22:39:48 +01:00
drm_connector.c drm: document standard connector properties 2016-11-18 09:45:07 +01:00
drm_context.c
drm_crtc_helper_internal.h
drm_crtc_helper.c
drm_crtc_internal.h drm/fence: add drm_crtc_create_fence() 2016-12-07 11:16:55 -02:00
drm_crtc.c drm/fence: add drm_crtc_create_fence() 2016-12-07 11:16:55 -02:00
drm_debugfs_crc.c
drm_debugfs.c drm/atomic: cleanup debugfs entries on un-registering the driver. 2016-11-21 13:22:08 -05:00
drm_dma.c
drm_dp_aux_dev.c
drm_dp_dual_mode_helper.c drm: Print some debug/error info during DP dual mode detect 2016-10-26 15:57:11 -04:00
drm_dp_helper.c
drm_dp_mst_topology.c drm/dp/mst: Check peer device type before attempting EDID read 2016-10-26 18:53:44 +02:00
drm_drv.c drm: Add fake controlD* symlinks for backwards compat 2016-12-10 22:46:19 +01:00
drm_dumb_buffers.c drm: Consolidate dumb buffer docs 2016-11-15 12:51:49 +01:00
drm_edid_load.c
drm_edid.c Merge tag 'drm-misc-next-2016-11-29' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2016-11-30 14:28:20 +10:00
drm_encoder_slave.c
drm_encoder.c drm: Fix locking cargo-cult in encoder/plane init/cleanup 2016-11-29 23:34:36 +01:00
drm_fb_cma_helper.c drm/fb_cma_helper: Add drm_fb_cma_prepare_fb() helper 2016-11-14 12:43:58 +01:00
drm_fb_helper.c drm: Protect fb_helper list manipulation with a mutex 2016-11-29 15:52:32 -05:00
drm_flip_work.c
drm_fops.c drm: define drm_compat_ioctl NULL on CONFIG_COMPAT=n and reduce #ifdefs 2016-11-02 11:33:47 -04:00
drm_fourcc.c drm: move allocation out of drm_get_format_name() 2016-11-12 14:19:38 +01:00
drm_framebuffer.c drm: Nuke modifier[1-3] 2016-11-17 11:58:09 +01:00
drm_gem_cma_helper.c
drm_gem.c
drm_global.c
drm_hashtab.c
drm_info.c
drm_internal.h drm: drm_irq.h header cleanup 2016-11-15 23:33:48 +01:00
drm_ioc32.c
drm_ioctl.c drm: Allow CAP_PRIME on !MODESET 2016-12-08 10:00:15 +01:00
drm_irq.c drm/irq: Unexport drm_vblank_on/off 2016-11-15 23:33:48 +01:00
drm_kms_helper_common.c
drm_legacy.h
drm_lock.c drm: Avoid NULL dereference for DRM_LEGACY debug message 2016-11-28 08:39:41 +01:00
drm_memory.c
drm_mipi_dsi.c
drm_mm.c drm: Initialise drm_mm.head_node.allocated 2016-12-01 10:35:45 +01:00
drm_mode_config.c drm/fence: add out-fences support 2016-11-16 14:36:27 +01:00
drm_mode_object.c
drm_modes.c Revert "drm: Add aspect ratio parsing in DRM layer" 2016-11-15 15:01:42 +01:00
drm_modeset_helper.c drm: also move DSI panels to the front of the connector list 2016-11-17 11:59:26 +01:00
drm_modeset_lock.c drm/doc: Fix indenting in drm_modeset_lock.c comment 2016-11-29 23:34:36 +01:00
drm_of.c
drm_panel.c
drm_pci.c
drm_plane_helper.c drm: add helpers to go from plane state to drm_rect 2016-11-08 16:38:03 -05:00
drm_plane.c Merge tag 'drm-misc-next-2016-12-08' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2016-12-09 12:29:10 +10:00
drm_platform.c
drm_prime.c drm: Take ownership of the dmabuf->obj when exporting 2016-12-08 10:29:22 +01:00
drm_print.c drm/print: Move kerneldoc next to definition 2016-11-15 12:55:24 +01:00
drm_probe_helper.c drm: Don't block the kworker waiting for mode_config.mutex in output_poll() 2016-12-06 13:41:15 +01:00
drm_property.c drm: Use u64_to_user_ptr() helper for blob ioctls 2016-11-28 08:12:18 +01:00
drm_rect.c drm: helper macros to print composite types 2016-11-08 16:38:03 -05:00
drm_scatter.c
drm_simple_kms_helper.c
drm_sysfs.c
drm_trace_points.c
drm_trace.h
drm_vm.c mm: use vmf->address instead of of vmf->virtual_address 2016-12-14 16:04:09 -08:00
drm_vma_manager.c
Kconfig Add support for the Amlogic Meson Video Processing Unit 2016-12-08 10:35:52 +10:00
Makefile Add support for the Amlogic Meson Video Processing Unit 2016-12-08 10:35:52 +10:00