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f0dfb1a81a
linux/drivers/gpu/drm/i915
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Ville Syrjälä f0dfb1a81a drm/i915: Register shadow VGA even when it produces spurious detection results 
Having a shadow VGA connector is useful for testing purposes. We
currently skip registering the connector on machines where the
CRT detect falsely reports it as connected. Let's instead move the
the blacklist check to the detect callback (and hpd setup) and
if we get a match we always report the connector as disconnected.
This way we get a shadow VGA connector to help with testing, while
we still avoid the user facing problems from the incorrect
detection results.

commit 8ca4013d70 ("CHROMIUM: i915: Add DMI override to skip CRT
initialization on ZGB") doesn't provide much in the way of details
as to why 'ACER ZGB' was added to the blacklist. Trying to trace it
further leads me to a chromeos bugreport I can't access. So based on
the fact that the commit added the
"/* Skip machines without VGA that falsely report hotplug events */"
comment, I'm going to assume that it was just spurious CRT detection.
So it should be safe to move the blacklist to just block the detection
and hpd without causing a regression on said machine.

In fact Stéphane confirmed on irc that the problem was indeed just
crappy hotplug detect:
"22:29 < marcheu> vsyrjala: the port isn't there, but the load detect is
 improperly stubbed in hw
 22:29 < marcheu> vsyrjala: so it floats"
so this change should be perfectly fine.

v2: Add irc quote from Stéphane

Cc: Duncan Laurie <dlaurie@chromium.org>
Cc: Olof Johansson <olofj@chromium.org>
Cc: Stéphane Marchesin <marcheu@chromium.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1474881646-1326-2-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-10-06 17:07:21 +03:00
..
gvt drm/i915: gvt: Introduce the basic architecture of GVT-g 2016-06-17 20:35:06 +01:00
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c
dvo_ns2501.c
dvo_sil164.c
dvo_tfp410.c
dvo.h
i915_cmd_parser.c drm/i915: use NULL for NULL pointers 2016-09-16 10:35:43 +03:00
i915_debugfs.c drm/i915: Reduce trickery in DEV_INFO_FOR_EACH_FLAG 2016-10-05 15:24:54 +03:00
i915_drv.c drm/i915: Disable irqs across GPU reset 2016-10-05 08:40:06 +01:00
i915_drv.h drm/i915: Sort DEV_INFO_FOR_EACH_FLAG 2016-10-05 15:24:54 +03:00
i915_gem_batch_pool.c drm/i915: Double check the active status on the batch pool 2016-08-04 20:19:50 +01:00
i915_gem_batch_pool.h drm/i915: Double check the active status on the batch pool 2016-08-04 20:19:50 +01:00
i915_gem_context.c drm/i915: Update reset path to fix incomplete requests 2016-09-09 14:23:05 +01:00
i915_gem_dmabuf.c drm/i915: Support for creating write combined type vmaps 2016-08-12 13:06:36 +01:00
i915_gem_dmabuf.h drm/i915: Serialise presentation with imported dmabufs 2016-06-17 10:32:26 +01:00
i915_gem_evict.c drm/i915: Mark up all locked waiters 2016-09-09 14:23:03 +01:00
i915_gem_execbuffer.c drm/i915: silence io mapping/unmapping sparse warnings on different address spaces 2016-10-04 17:07:07 +03:00
i915_gem_fence.c drm/i915: Flush delayed fence releases after reset 2016-08-19 16:59:22 +01:00
i915_gem_gtt.c drm/i915: remove writeq ifdeffery 2016-09-12 11:33:56 +03:00
i915_gem_gtt.h drm/i915: Embed the scratch page struct into each VM 2016-08-22 12:19:52 +01:00
i915_gem_render_state.c drm/i915: Use VMA for render state page tracking 2016-08-15 11:01:11 +01:00
i915_gem_render_state.h drm/i915: Use VMA for render state page tracking 2016-08-15 11:01:11 +01:00
i915_gem_request.c drm/i915: Nonblocking request submission 2016-09-09 14:23:08 +01:00
i915_gem_request.h drm/i915: Nonblocking request submission 2016-09-09 14:23:08 +01:00
i915_gem_shrinker.c drm/i915: Mark up all locked waiters 2016-09-09 14:23:03 +01:00
i915_gem_stolen.c drm/i915: pdev cleanup 2016-08-22 12:19:52 +01:00
i915_gem_tiling.c drm/i915: Move fence tracking from object to vma 2016-08-18 22:36:50 +01:00
i915_gem_userptr.c drm/i915: Expand bool interruptible to pass flags to i915_wait_request() 2016-09-09 14:23:03 +01:00
i915_gem.c drm/i915: Double check hangcheck.seqno after reset 2016-10-05 08:40:06 +01:00
i915_gem.h
i915_gpu_error.c drm/i915: Reduce trickery in DEV_INFO_FOR_EACH_FLAG 2016-10-05 15:24:54 +03:00
i915_guc_reg.h drm/i915/guc: general tidying up (loader) 2016-09-15 10:56:02 +01:00
i915_guc_submission.c drm/i915/guc: general tidying up (submission) 2016-09-15 10:56:07 +01:00
i915_ioc32.c
i915_irq.c drm/i915: Use correct index for backtracking HUNG semaphores 2016-10-03 20:59:55 +01:00
i915_memcpy.c drm/i915: Mark the static key for movntqda as static 2016-08-17 12:36:07 +01:00
i915_mm.c drm/i915: Use remap_io_mapping() to prefault all PTE in a single pass 2016-08-19 17:13:36 +01:00
i915_params.c drm/i915: Add a way to test the modeset done during gpu reset, v3. 2016-08-05 23:28:28 +03:00
i915_params.h drm/i915: Add a way to test the modeset done during gpu reset, v3. 2016-08-05 23:28:28 +03:00
i915_pci.c drm/i915: keep declarations in i915_drv.h 2016-09-22 14:53:29 +03:00
i915_pvinfo.h drm/i915: Use offsetof() to calculate the offset of members in PVINFO page 2016-06-17 19:44:25 +01:00
i915_reg.h drm/i915: Share the computation of ring size for RING_CTL register 2016-10-05 08:40:05 +01:00
i915_suspend.c drm/i915: pdev cleanup 2016-08-22 12:19:52 +01:00
i915_sw_fence.c drm/i915: Add a sw fence for collecting up dma fences 2016-09-09 14:22:55 +01:00
i915_sw_fence.h drm/i915: Add a sw fence for collecting up dma fences 2016-09-09 14:22:55 +01:00
i915_sysfs.c drm/i915: Drop mutex around clearing error state 2016-09-02 08:32:55 +01:00
i915_trace_points.c
i915_trace.h drm/i915: Remove surplus drm_device parameter to i915_gem_evict_something() 2016-08-04 20:19:50 +01:00
i915_vgpu.c drm/i915: enable vGPU detection for all 2016-09-06 16:39:36 +03:00
i915_vgpu.h drm/i915: Fold vGPU active check into inner functions 2016-06-17 19:44:29 +01:00
intel_acpi.c
intel_atomic_plane.c drm/i915: Use drm_plane_helper_check_state() 2016-08-08 14:19:56 -04:00
intel_atomic.c drm: Consolidate plane arrays in drm_atomic_state 2016-06-02 17:20:25 +02:00
intel_audio.c drm/i915/dp: DP audio API changes for MST 2016-09-22 09:01:55 -07:00
intel_bios.c drm/i915/bios: log about presence of DSI sequences we do not run 2016-09-19 18:38:02 +03:00
intel_bios.h
intel_breadcrumbs.c drm/i915: Drive request submission through fence callbacks 2016-09-09 14:23:05 +01:00
intel_color.c drm/i915: Use more atomic state in intel_color.c 2016-08-23 11:58:56 +02:00
intel_crt.c drm/i915: Register shadow VGA even when it produces spurious detection results 2016-10-06 17:07:21 +03:00
intel_csr.c drm/i915: Fix botched merge that downgrades CSR versions. 2016-08-22 12:54:50 +02:00
intel_ddi.c Revert "drm/i915: start adding dp mst audio" 2016-09-29 11:02:41 +03:00
intel_device_info.c drm/i915: Reduce trickery in DEV_INFO_FOR_EACH_FLAG 2016-10-05 15:24:54 +03:00
intel_display.c drm/i915: keep CONFIG_DRM_FBDEV_EMULATION=n function stubs together 2016-10-04 12:03:17 +03:00
intel_dp_aux_backlight.c
intel_dp_link_training.c drm/i915/skl: drop workarounds for A0 and B0 revisions 2016-09-26 12:08:22 +03:00
intel_dp_mst.c Revert "drm/i915: start adding dp mst audio" 2016-09-29 11:02:41 +03:00
intel_dp.c drm/i915: Allow DP to work w/o EDID 2016-10-05 12:33:13 +03:00
intel_dpio_phy.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_dpll_mgr.c drm/i915/bxt: Fix HDMI DPLL configuration 2016-09-27 14:20:56 +03:00
intel_dpll_mgr.h drm/i915/dp: Add a standalone function to obtain shared dpll for HSW/BDW/SKL/BXT 2016-09-09 14:53:18 -07:00
intel_drv.h drm/i915: keep CONFIG_DRM_FBDEV_EMULATION=n function stubs together 2016-10-04 12:03:17 +03:00
intel_dsi_dcs_backlight.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_dsi_panel_vbt.c drm/i915/dsi: double check element parsing against size if present 2016-09-19 18:38:11 +03:00
intel_dsi_pll.c drm/i915: Mass convert dev->dev_private to to_i915(dev) 2016-07-04 12:54:07 +01:00
intel_dsi.c drm/i915: Store port enum in intel_encoder 2016-09-21 09:32:00 -07:00
intel_dsi.h
intel_dvo.c drm/i915: Store port enum in intel_encoder 2016-09-21 09:32:00 -07:00
intel_engine_cs.c drm/i915: Show RING registers through debugfs 2016-10-05 08:40:06 +01:00
intel_fbc.c drm/i915/fbc: disable FBC on FIFO underruns 2016-09-22 17:01:34 -03:00
intel_fbdev.c drm/i915: pdev cleanup 2016-08-22 12:19:52 +01:00
intel_fifo_underrun.c drm/i915/fbc: disable FBC on FIFO underruns 2016-09-22 17:01:34 -03:00
intel_frontbuffer.c drm/i915: Use dev_priv consistently through the intel_frontbuffer interface 2016-08-04 20:20:03 +01:00
intel_frontbuffer.h drm/i915: Use dev_priv consistently through the intel_frontbuffer interface 2016-08-04 20:20:03 +01:00
intel_guc_fwif.h drm/i915/guc: rework guc_add_workqueue_item() 2016-05-23 14:21:53 +01:00
intel_guc_loader.c drm/i915: add a few missing platform tags to workaround tags 2016-09-27 09:29:49 +03:00
intel_guc.h drm/i915/guc: general tidying up (submission) 2016-09-15 10:56:07 +01:00
intel_gvt.c drm/i915/gvt: Mark i915.enable_gvt as false if loading fails 2016-06-21 12:40:13 +01:00
intel_gvt.h drm/i915: gvt: Introduce the basic architecture of GVT-g 2016-06-17 20:35:06 +01:00
intel_hdmi.c drm/i915: Store port enum in intel_encoder 2016-09-21 09:32:00 -07:00
intel_hotplug.c drm/i915: Mark i915_hpd_poll_init_work as static 2016-08-17 12:36:15 +01:00
intel_i2c.c drm/i915: Take forcewake once for the entire GMBUS transaction 2016-08-22 18:42:44 +01:00
intel_lrc.c drm/i915/execlists: Move clearing submission count from reset to init 2016-10-05 08:40:05 +01:00
intel_lrc.h drm/i915: Update reset path to fix incomplete requests 2016-09-09 14:23:05 +01:00
intel_lvds.c drm/i915: Store port enum in intel_encoder 2016-09-21 09:32:00 -07:00
intel_mocs.c drm/i915: Rename struct intel_ringbuffer to struct intel_ring 2016-08-02 22:58:16 +01:00
intel_mocs.h drm/i915: rename 'ring' where it refers to an engine or engine_id 2016-07-21 09:59:41 +01:00
intel_modes.c drm: Remove superflous linux/fb.h includes 2016-08-12 10:41:39 +02:00
intel_opregion.c drm/i915: Ignore OpRegion panel type except on select machines 2016-09-14 10:35:00 +03:00
intel_overlay.c drm/i915: Embed the io-mapping struct inside drm_i915_private 2016-08-19 17:13:35 +01:00
intel_panel.c drm/i915/backlight: setup backlight pwm alternate increment on backlight enable 2016-09-20 12:01:38 +03:00
intel_pm.c drm/i915: make skl_ddb_add_affected_planes static 2016-10-04 13:49:38 +03:00
intel_psr.c Revert "drm/i915/psr: Make idle_frames sensible again" 2016-09-13 11:57:53 +03:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_renderstate.h drm/i915: Remove duplicate golden render state init from execlists 2016-08-02 22:58:30 +01:00
intel_ringbuffer.c drm/i915: Show RING registers through debugfs 2016-10-05 08:40:06 +01:00
intel_ringbuffer.h drm/i915: Show RING registers through debugfs 2016-10-05 08:40:06 +01:00
intel_runtime_pm.c drm/i915: pdev cleanup 2016-08-22 12:19:52 +01:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915: Store port enum in intel_encoder 2016-09-21 09:32:00 -07:00
intel_sideband.c drm/i915: Convert wait_for(I915_READ(reg)) to intel_wait_for_register() 2016-06-30 15:42:33 +01:00
intel_sprite.c drm/i915/skl: Don't try to update plane watermarks if they haven't changed 2016-09-07 12:29:17 +02:00
intel_tv.c drm/i915: Store port enum in intel_encoder 2016-09-21 09:32:00 -07:00
intel_uncore.c drm/i915: Inline binary search 2016-10-04 11:10:01 +01:00
intel_vbt_defs.h drm/i915: Extract physical display dimensions from VBT 2016-06-10 10:41:15 +03:00
Kconfig drm/i915: gvt: Introduce the basic architecture of GVT-g 2016-06-17 20:35:06 +01:00
Kconfig.debug drm/i915: Select DRM_VGEM for igt 2016-07-10 13:22:39 +01:00
Makefile drm/i915: Add a sw fence for collecting up dma fences 2016-09-09 14:22:55 +01:00