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7d7f8633a8
linux/drivers/gpu/drm/i915
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Ville Syrjälä 7d7f8633a8 drm/i915: Allow PCH DPLL sharing regardless of DPLL_SDVO_HIGH_SPEED 
DPLL_SDVO_HIGH_SPEED must be set for SDVO/HDMI/DP, but nowhere is it
forbidden to set it for LVDS/CRT as well. So let's also set it on
CRT to make it possible to share the DPLL between HDMI and CRT.

What that bit apparently does is enable the x5 clock to the port,
which then pumps out the bits on both edges of the clock. The DAC
doesn't need that clock since it's not pumping out bits, but I don't
think it hurts to have the DPLL output that clock anyway.

This is fairly important on IVB since it has only two DPLLs with three
pipes. So trying to drive three or more PCH ports with three pipes
is only possible when at least one of the DPLLs gets shared between
two of the pipes.

SNB doesn't really need to do this since it has only two pipes. It could
be done to avoid enabling the second DPLL at all in certain cases, but
I'm not sure that's such a huge win. So let's not do it for SNB, at
least for now. On ILK it never makes sense as the DPLLs can't be shared.

v2: Just always enable the high speed clock to keep things simple (Daniel)
    Beef up the commit message a bit (Daniel)

Cc: Nick Yamane <nick.diego@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Tested-by: Nick Yamane <nick.diego@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97204
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1474878646-17711-1-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
2016-09-28 16:57:44 +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: don't report compression when fbc is disabled 2016-09-26 16:56:10 -03:00
i915_drv.c drm/i915/skl: tell the user about pre-production hardware 2016-09-27 09:30:39 +03:00
i915_drv.h drm/i915: SAGV is not SKL-only, so rename a few things 2016-09-26 16:50:07 -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: Serialise execbuf operation after a dma-buf reservation object 2016-09-09 14:23:08 +01:00
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: Only shrink the unbound objects during freeze 2016-09-21 16:57:06 +01:00
i915_gem.h
i915_gpu_error.c drm/i915: Try to print INSTDONE bits for all slice/subslice 2016-09-21 15:33:29 +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: Restore current RPS state after reset 2016-09-21 16:52:39 +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: Try to print INSTDONE bits for all slice/subslice 2016-09-21 15:33:29 +03:00
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
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: Store port enum in intel_encoder 2016-09-21 09:32:00 -07:00
intel_csr.c drm/i915: Fix botched merge that downgrades CSR versions. 2016-08-22 12:54:50 +02:00
intel_ddi.c drm/i915: start adding dp mst audio 2016-09-21 09:32:25 -07:00
intel_device_info.c drm/i915: sseu: Add debug printf for slice/subslice masks 2016-09-02 18:17:52 +03:00
intel_display.c drm/i915: Allow PCH DPLL sharing regardless of DPLL_SDVO_HIGH_SPEED 2016-09-28 16:57:44 +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 drm/i915: start adding dp mst audio 2016-09-21 09:32:25 -07:00
intel_dp.c drm/i915: Code cleanup to use dev_priv and INTEL_GEN 2016-09-28 11:12:39 +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: SAGV is not SKL-only, so rename a few things 2016-09-26 16:50:07 -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: Update reset path to fix incomplete requests 2016-09-09 14:23:05 +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
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/skl: drop workarounds for E0 revision 2016-09-26 12:12:56 +03:00
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: add a few missing platform tags to workaround tags 2016-09-27 09:29:49 +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/skl: drop workarounds for F0 revision 2016-09-26 12:14:05 +03:00
intel_ringbuffer.h drm/i915: Try to print INSTDONE bits for all slice/subslice 2016-09-21 15:33:29 +03:00
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: Remove 64b mmio write vfuncs 2016-09-06 17:51:01 +01:00
intel_vbt_defs.h
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