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alistair23-linux/drivers/gpu/drm/i915
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Chris Wilson eebaed646a drm/i915: Ignore LVDS presence in VBT flag if the LVDS is enabled by BIOS 
On older gen, pre-Ironlake, parts there is no hardwired pin to report
the presence of an LVDS panel. Instead, we have to rely on the VBT to
declare whether the machine has a panel or not. Though notoriously
unreliable, so far we have erred on the side of false-positives and have
required a list of machines which end up falsely reporting a panel as
present. However, we now have reports of false-negatives, machines with
an LVDS that are being ignored due to the VBT not declaring the panel.
This patch ignores the VBT setting if the BIOS has already enabled the
LVDS panel (and on Ironlake+ we also have the hardware presence pin).

It fixes the Samsung NP680Z5E-X01FR in the bug report, but is likely to
result in more false-positives, and since we rely on the BIOS to enable
the panel, there are likely different circumstances where the BIOS will
not enable that panel (and so we may see the same machine with and
without a panel all on the whim of the BIOS).

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90979
Reported-and-tested-by: lysxia@gmail.com
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-06-22 16:13:48 +02:00
..
dvo.h
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c Fix resume from suspend on IBM X30 2015-06-15 12:21:01 +02:00
dvo_ns2501.c
dvo_sil164.c
dvo_tfp410.c
i915_cmd_parser.c drm/i915: Add SCRATCH1 and ROW_CHICKEN3 to the register whitelist. 2015-06-15 12:34:58 +02:00
i915_debugfs.c drm/i915: unify no_fbc_reason message printing 2015-06-15 18:36:36 +02:00
i915_dma.c drm/i915: Report to userspace if we have a (presumed) working GPU reset 2015-06-15 16:59:58 +02:00
i915_drv.c drm/i915: move generic hotplug code into new intel_hotplug.c file 2015-06-22 15:03:42 +02:00
i915_drv.h drm/i915: move generic hotplug code into new intel_hotplug.c file 2015-06-22 15:03:42 +02:00
i915_gem.c drm/i915: Remove unused ring argument from frontbuffer invalidate and busy functions. 2015-06-22 15:59:18 +02:00
i915_gem_batch_pool.c
i915_gem_batch_pool.h
i915_gem_context.c drm/i915: add a context parameter to {en, dis}able zero address mapping 2015-05-29 10:15:19 +02:00
i915_gem_debug.c drm/i915: Implement inter-engine read-read optimisations 2015-05-21 15:11:42 +02:00
i915_gem_dmabuf.c
i915_gem_evict.c
i915_gem_execbuffer.c drm/i915: Enforce execobject.alignment to be a power-of-two 2015-06-22 16:13:23 +02:00
i915_gem_gtt.c drm/i915/gtt: Remove _single from page table allocator 2015-06-15 12:13:14 +02:00
i915_gem_gtt.h drm/i915: Add a partial GGTT view type 2015-05-08 13:04:18 +02:00
i915_gem_render_state.c
i915_gem_render_state.h
i915_gem_shrinker.c
i915_gem_stolen.c
i915_gem_tiling.c
i915_gem_userptr.c drm/i915: Use uninterruptible mutex_lock for userptr bo creation 2015-05-20 11:26:03 +02:00
i915_gpu_error.c drm/i915: Implement inter-engine read-read optimisations 2015-05-21 15:11:42 +02:00
i915_ioc32.c
i915_irq.c drm/i915: reduce line width in {pch, i9xx}_get_hpd_pins() 2015-06-22 15:04:43 +02:00
i915_params.c
i915_reg.h drm/i915: Reset request handling for gen8+ 2015-06-18 16:58:37 +02:00
i915_suspend.c
i915_sysfs.c drm/i915/vlv: fix RC6 residency time calculation 2015-06-15 11:56:37 +02:00
i915_trace.h
i915_trace_points.c
i915_vgpu.c
i915_vgpu.h
intel_acpi.c
intel_atomic.c drm/i915: Make cdclk part of the atomic state. 2015-06-22 14:28:37 +02:00
intel_atomic_plane.c drm/i915: Remove transitional references from intel_plane_atomic_check. 2015-06-22 14:28:29 +02:00
intel_audio.c
intel_bios.c drm/i915/bios: be more explicit about discarding iomem address space 2015-05-20 11:26:01 +02:00
intel_bios.h
intel_crt.c drm/i915: Disable CRT port after pipe on PCH platforms 2015-05-21 23:23:16 +02:00
intel_csr.c drm/i915/skl: Add debug messages at the start/end of DMC firmware loading 2015-06-15 14:30:47 +02:00
intel_ddi.c drm/i915/bxt: fix DDI PHY vswing scale value setting 2015-06-12 13:14:38 +03:00
intel_display.c drm/i915: Factor out p2 divider selection for pre-ilk platforms 2015-06-22 15:45:05 +02:00
intel_dp.c drm/i915: Split skl_update_scaler, v4. 2015-06-22 14:19:50 +02:00
intel_dp_mst.c
intel_drv.h drm/i915: Remove unused ring argument from frontbuffer invalidate and busy functions. 2015-06-22 15:59:18 +02:00
intel_dsi.c drm/i915/dsi: remove non-op hot plug callback 2015-05-29 10:15:21 +02:00
intel_dsi.h
intel_dsi_panel_vbt.c drm/i915: s/dpio_lock/sb_lock/ 2015-05-28 11:13:51 +02:00
intel_dsi_pll.c drm/i915: s/dpio_lock/sb_lock/ 2015-05-28 11:13:51 +02:00
intel_dvo.c
intel_fbc.c drm/i915: don't set the FBC plane select bits on HSW+ 2015-06-15 18:36:42 +02:00
intel_fbdev.c drm/i915: Remove unused ring argument from frontbuffer invalidate and busy functions. 2015-06-22 15:59:18 +02:00
intel_fifo_underrun.c
intel_frontbuffer.c drm/i915: Remove unused ring argument from frontbuffer invalidate and busy functions. 2015-06-22 15:59:18 +02:00
intel_hdmi.c drm/i915: Double the port clock when using double clocked modes with 12bpc 2015-06-15 11:36:40 +02:00
intel_hotplug.c drm/i915: move generic hotplug code into new intel_hotplug.c file 2015-06-22 15:03:42 +02:00
intel_i2c.c drm/i915: don't register invalid gmbus pins for skl 2015-05-20 11:25:50 +02:00
intel_lrc.c drm/i915: Remove unnecessary null check in execlists_context_unqueue 2015-05-27 13:20:51 +02:00
intel_lrc.h
intel_lvds.c drm/i915: Ignore LVDS presence in VBT flag if the LVDS is enabled by BIOS 2015-06-22 16:13:48 +02:00
intel_modes.c
intel_opregion.c
intel_overlay.c drm/i915: Implement inter-engine read-read optimisations 2015-05-21 15:11:42 +02:00
intel_panel.c
intel_pm.c drm/i915: Remove more ilk rc6 remnants 2015-06-15 23:25:25 +02:00
intel_psr.c
intel_renderstate.h
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_ringbuffer.c drm/i915: Apply WaDisableAsyncFlipPerfMode via LRIs on gen8 2015-06-03 14:11:35 +03:00
intel_ringbuffer.h drm/i915: Extend the parser to check register writes against a mask/value pair. 2015-06-15 12:34:50 +02:00
intel_runtime_pm.c drm/i915: Throw out WIP CHV power well definitions 2015-05-28 11:13:50 +02:00
intel_sdvo.c drm/i915: Disable SDVO port after the pipe on PCH platforms 2015-05-21 23:22:01 +02:00
intel_sdvo_regs.h
intel_sideband.c drm/i915: s/dpio_lock/sb_lock/ 2015-05-28 11:13:51 +02:00
intel_sprite.c drm/i915: Make setting color key atomic. 2015-06-22 14:28:15 +02:00
intel_tv.c
intel_uncore.c drm/i915: Reset request handling for gen8+ 2015-06-18 16:58:37 +02:00
Kconfig Revert "drm/i915: Force clean compilation with -Werror" 2015-05-26 07:46:21 +02:00
Makefile drm/i915: move generic hotplug code into new intel_hotplug.c file 2015-06-22 15:03:42 +02:00