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e19c1eb885
linux_dsm_epyc7002/drivers/gpu/drm
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Imre Deak e19c1eb885 drm/i915: Fix DDI PHY init if it was already on 
The common lane power down flag of a DPIO PHY has a funky semantic:
after the initial enabling of the PHY (so from a disabled state) this
flag will be clear. It will be set only after the PHY will be used for
the first time (for instance due to enabling the corresponding pipe) and
then become unused (due to disabling the pipe). During the initial PHY
enablement we don't know which of the above phases we are in, so move
the check for the flag where this is known, the HW readout code. This is
where the rest of lane power down status checks are done anyway.

This fixes at least a problem on GLK where after module reloading, the
common lane power down flag of PHY1 is set, but the PHY is actually
powered-on and properly set up. The GRC readout code for other PHYs will
hence think that PHY1 is not powered initially and disable it after the
GRC readout. This will cause the AUX power well related to PHY1 to get
disabled in a stuck state, timing out when we try to enable it later.

Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Fixes: e93da0a013 ("drm/i915/bxt: Sanitiy check the PHY lane power down status")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102777
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171002135307.26117-1-imre.deak@intel.com
2017-10-03 12:09:52 +03:00
..
amd Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next 2017-09-28 08:37:02 +10:00
arc drm/arc: Use drm_gem_fb_create() 2017-09-02 14:23:06 +02:00
arm drm/arm/mali: Use drm_gem_fb_create() 2017-08-27 19:29:46 +02:00
armada drm/armada: Use correct path to trace include 2017-09-05 11:11:20 +02:00
ast Merge tag 'drm-misc-next-2017-08-16' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-08-17 07:33:41 +10:00
atmel-hlcdc drm/atmel-hlcdc: Use drm_gem_fb_create() 2017-08-27 19:30:15 +02:00
bochs drm/bochs: Use the drm_driver.dumb_destroy default 2017-08-16 20:18:55 +02:00
bridge Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
cirrus drm/cirrus: Use the drm_driver.dumb_destroy default 2017-08-16 20:14:22 +02:00
etnaviv mm: treewide: remove GFP_TEMPORARY allocation flag 2017-09-13 18:53:16 -07:00
exynos Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
fsl-dcu drm: Nuke drm_atomic_helper_connector_dpms 2017-08-08 14:48:48 +02:00
gma500 Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
hisilicon drm: kirin: Add mode_valid logic to avoid mode clocks we can't generate 2017-08-29 05:20:35 +10:00
i2c drm: i2c: tda998x: constify i2c_device_id 2017-08-22 08:33:44 +02:00
i810 drm/pci: Deprecate drm_pci_init/exit completely 2017-06-20 10:41:03 +02:00
i915 drm/i915: Fix DDI PHY init if it was already on 2017-10-03 12:09:52 +03:00
imx Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
lib mm: treewide: remove GFP_TEMPORARY allocation flag 2017-09-13 18:53:16 -07:00
mediatek drm/mediatek: hdmi: clean up drm_bridge_add call 2017-08-21 08:49:24 +05:30
meson drm/meson: Use .dumb_map_offset and .dumb_destroy defaults 2017-08-16 20:11:43 +02:00
mga Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
mgag200 drm/mgag200: Use the drm_driver.dumb_destroy default 2017-08-16 20:18:22 +02:00
msm mm: treewide: remove GFP_TEMPORARY allocation flag 2017-09-13 18:53:16 -07:00
mxsfb drm/mxsfb: Use .dumb_map_offset and .dumb_destroy defaults 2017-08-16 20:12:19 +02:00
nouveau dmi: Mark all struct dmi_system_id instances const 2017-09-14 11:59:30 +02:00
omapdrm drm/omap: work-around for omap3 display enable 2017-08-23 12:22:12 +03:00
panel drm/panel: Add driver for Seiko 43WVF1G panel 2017-08-18 17:10:45 +02:00
pl111 drm/pl111: Add handling of Versatile platforms 2017-09-10 23:58:42 +02:00
qxl drm/qxl: Use the drm_driver.dumb_destroy default 2017-08-16 20:15:38 +02:00
r128 drm/pci: Deprecate drm_pci_init/exit completely 2017-06-20 10:41:03 +02:00
radeon Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next 2017-09-28 08:37:02 +10:00
rcar-du Merge tag 'drm-misc-next-2017-08-08' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-08-10 10:47:33 +10:00
rockchip Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
savage drm/pci: Deprecate drm_pci_init/exit completely 2017-06-20 10:41:03 +02:00
selftests mm: treewide: remove GFP_TEMPORARY allocation flag 2017-09-13 18:53:16 -07:00
shmobile drm/shmobile: Use .dumb_map_offset and .dumb_destroy defaults 2017-07-29 13:57:33 +02:00
sis drm/pci: Deprecate drm_pci_init/exit completely 2017-06-20 10:41:03 +02:00
sti drm/sti: Use drm_gem_fb_create() 2017-08-27 19:30:49 +02:00
stm drm/stm: fix warning about multiplication in condition 2017-09-08 10:29:11 +02:00
sun4i Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
tdfx drm/pci: Deprecate drm_pci_init/exit completely 2017-06-20 10:41:03 +02:00
tegra drm/tegra: Changes for v4.14-rc1 2017-08-21 17:37:33 +10:00
tilcdc drm/tilcdc: Use drm_gem_fb_create() 2017-09-09 18:00:58 +02:00
tinydrm drm/tinydrm: Drop driver registered message 2017-09-16 14:07:59 +02:00
ttm Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next 2017-09-28 08:37:02 +10:00
tve200 drm/tve200: Clean up panel bridging 2017-09-11 20:32:56 +02:00
udl Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-09-04 12:21:28 -07:00
vc4 drm/vc4: clean up error handling on devm_kzalloc failure 2017-09-08 11:06:54 -07:00
vgem drm/vgem: switch to drm_*_get(), drm_*_put() helpers 2017-08-11 11:41:43 -04:00
via drm/pci: Deprecate drm_pci_init/exit completely 2017-06-20 10:41:03 +02:00
virtio drm/ttm: make ttm_mem_type_manager_func debug more useful 2017-08-17 15:45:59 -04:00
vmwgfx main drm pull request for 4.14 merge window 2017-09-03 17:02:26 -07:00
zte drm/zte: Use drm_gem_fb_create() 2017-08-27 19:31:06 +02:00
ati_pcigart.c
drm_agpsupport.c
drm_atomic_helper.c Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
drm_atomic.c Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
drm_auth.c
drm_blend.c mm: treewide: remove GFP_TEMPORARY allocation flag 2017-09-13 18:53:16 -07:00
drm_bridge.c drm/bridge: change return type of drm_bridge_add function 2017-08-21 08:51:53 +05:30
drm_bufs.c switch compat_drm_mapbufs() to drm_ioctl_kernel() 2017-07-04 13:16:26 -04:00
drm_cache.c
drm_color_mgmt.c drm: More links for gamma support helpers 2017-06-20 12:13:11 +02:00
drm_connector.c drm: Drop drm_get_link_status_name() 2017-09-11 15:53:33 +03:00
drm_context.c
drm_crtc_helper_internal.h drm: Add drm_{crtc/encoder/connector}_mode_valid() 2017-05-30 08:37:24 +02:00
drm_crtc_helper.c drm: Handle properties in the core for atomic drivers 2017-08-08 14:45:09 +02:00
drm_crtc_internal.h drm: Handle properties in the core for atomic drivers 2017-08-08 14:45:09 +02:00
drm_crtc.c drm/crtc: Convert setcrtc ioctl locking to interruptible. 2017-09-13 09:52:05 +02:00
drm_debugfs_crc.c drm/atomic: Prepare drm_modeset_lock infrastructure for interruptible waiting, v2. 2017-09-13 09:50:52 +02:00
drm_debugfs.c
drm_dma.c
drm_dp_aux_dev.c drm_dp_aux_dev: switch to read_iter/write_iter 2017-07-08 20:51:46 -04:00
drm_dp_dual_mode_helper.c mm: treewide: remove GFP_TEMPORARY allocation flag 2017-09-13 18:53:16 -07:00
drm_dp_helper.c drm/dp: Don't trust drm_dp_downstream_id() 2017-07-21 17:45:26 +03:00
drm_dp_mst_topology.c drm/dp/mst: Sideband message transaction to power up/down nodes 2017-09-11 16:03:57 +03:00
drm_drv.c drm: Clean up drm_dev_unplug 2017-08-11 10:49:21 +02:00
drm_dumb_buffers.c drm/dumb-buffers: Add defaults for .dumb_map_offset and .dumb_destroy 2017-07-29 13:51:44 +02:00
drm_edid_load.c drm: add backwards compatibility support for drm_kms_helper.edid_firmware 2017-09-19 18:11:45 +03:00
drm_edid.c drm: handle override and firmware EDID at drm_do_get_edid() level 2017-09-19 17:49:25 +03:00
drm_encoder_slave.c
drm_encoder.c
drm_fb_cma_helper.c drm/fb-cma-helper: Use drm_gem_framebuffer_helper 2017-08-16 21:34:38 +02:00
drm_fb_helper.c drm/fb-helper: Avoid NULL ptr dereference in fb_set_suspend() 2017-09-02 14:37:59 +02:00
drm_file.c drm: Document device unplug infrastructure 2017-08-11 10:48:03 +02:00
drm_flip_work.c
drm_fourcc.c
drm_framebuffer.c Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
drm_gem_cma_helper.c drm/gem-cma-helper: Remove drm_gem_cma_dumb_map_offset() 2017-08-16 20:21:24 +02:00
drm_gem_framebuffer_helper.c drm/gem-fb-helper: Use debug message on gem lookup failure 2017-09-16 14:06:53 +02:00
drm_gem.c Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
drm_global.c
drm_hashtab.c
drm_info.c
drm_internal.h drm/syncobj: Add a signal ioctl (v3) 2017-08-29 10:16:25 +10:00
drm_ioc32.c Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
drm_ioctl.c drm/syncobj: Add a signal ioctl (v3) 2017-08-29 10:16:25 +10:00
drm_irq.c drm/doc: Polish irq helper documentation 2017-06-01 08:02:14 +02:00
drm_kms_helper_common.c drm: add backwards compatibility support for drm_kms_helper.edid_firmware 2017-09-19 18:11:45 +03:00
drm_legacy.h switch compat_drm_mapbufs() to drm_ioctl_kernel() 2017-07-04 13:16:26 -04:00
drm_lock.c
drm_memory.c
drm_mipi_dsi.c drm: Convert to using %pOF instead of full_name 2017-07-26 13:45:06 +02:00
drm_mm.c lib/interval_tree: fast overlap detection 2017-09-08 18:26:49 -07:00
drm_mode_config.c drm: Create a format/modifier blob 2017-08-01 17:50:06 +01:00
drm_mode_object.c drm: Make __drm_object_property_get_value() static 2017-09-11 15:53:33 +03:00
drm_modes.c drm/modes: Fix drm_mode_is_420_only() comment 2017-07-31 14:23:30 +02:00
drm_modeset_helper.c drm: Plumb modifiers through plane init 2017-08-01 17:50:06 +01:00
drm_modeset_lock.c drm/atomic: Prepare drm_modeset_lock infrastructure for interruptible waiting, v2. 2017-09-13 09:50:52 +02:00
drm_of.c drm: Convert to using %pOF instead of full_name 2017-07-26 13:45:06 +02:00
drm_panel.c
drm_pci.c drm/pci: Deprecate drm_pci_init/exit completely 2017-06-20 10:41:03 +02:00
drm_plane_helper.c
drm_plane.c Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
drm_prime.c
drm_print.c
drm_probe_helper.c drm: handle override and firmware EDID at drm_do_get_edid() level 2017-09-19 17:49:25 +03:00
drm_property.c drm: rename, adjust and export drm_atomic_replace_property_blob 2017-07-14 15:53:06 +02:00
drm_rect.c
drm_scatter.c
drm_scdc_helper.c Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
drm_simple_kms_helper.c drm: Plumb modifiers through plane init 2017-08-01 17:50:06 +01:00
drm_syncobj.c Merge tag 'drm-misc-next-2017-09-20' of git://anongit.freedesktop.org/git/drm-misc into drm-next 2017-09-28 05:46:15 +10:00
drm_sysfs.c
drm_trace_points.c
drm_trace.h drm: Use correct path to trace include 2017-09-05 11:11:18 +02:00
drm_vblank.c Merge airlied/drm-next into drm-misc-next 2017-07-26 13:43:33 +02:00
drm_vm.c Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-09-04 12:21:28 -07:00
drm_vma_manager.c lib/interval_tree: fast overlap detection 2017-09-08 18:26:49 -07:00
Kconfig Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next 2017-09-28 08:37:02 +10:00
Makefile Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next 2017-09-28 08:37:02 +10:00