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572deb3728
linux/drivers/gpu/drm/i915
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Daniel Vetter 572deb3728 drm/i915: add comment about pch pll enabling rules 
Atm we have a few funny issues where we enable/disable shared
pll clocks. To make it clear that we are not required to enable/
disable the pch plls together with the other pch resources (and
so should keep it running when it's used by another pipe in
a shared pll configuration) add a comment.

This note is lifted from "Graphics BSpec: vol4g North Display Engine
Registers [IVB], Display Mode Set Sequence", step 9.d. of the enable
sequence:

"Configure and enable PCH DPLL, wait for PCH DPLL warmup (Can be
done anytime before enabling PCH transcoder)."

Since fixing the pll sharing code to no longer disable shared plls
if they're still in use is more involved, let's just stick with the
comment for now.

v2: Make the comment in the code clearer, to address questions raised
by Paulo Zanoni in review.

Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-11-11 23:50:58 +01:00
..
dvo_ch7xxx.c drm/i915/dvo-ch7xxx: fix get_hw_state 2012-10-12 10:59:11 +02:00
dvo_ch7017.c drm/i915/dvo: implement get_hw_state 2012-09-06 07:58:52 +02:00
dvo_ivch.c drm/i915/dvo: implement get_hw_state 2012-09-06 07:58:52 +02:00
dvo_ns2501.c drm/i915/dvo: implement get_hw_state 2012-09-06 07:58:52 +02:00
dvo_sil164.c drm/i915/dvo: implement get_hw_state 2012-09-06 07:58:52 +02:00
dvo_tfp410.c drm/i915/dvo: implement get_hw_state 2012-09-06 07:58:52 +02:00
dvo.h Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-10-03 23:29:23 -07:00
i915_debugfs.c Linux 3.7-rc2 2012-10-22 14:34:51 +02:00
i915_dma.c Linux 3.7-rc2 2012-10-22 14:34:51 +02:00
i915_drv.c Linux 3.7-rc2 2012-10-22 14:34:51 +02:00
i915_drv.h drm/i915: add TRANSCODER_EDP 2012-10-26 10:24:45 +02:00
i915_gem_context.c Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-next 2012-10-07 21:13:54 +10:00
i915_gem_debug.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
i915_gem_dmabuf.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-10-03 23:29:23 -07:00
i915_gem_evict.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-10-03 23:29:23 -07:00
i915_gem_execbuffer.c Linux 3.7-rc2 2012-10-22 14:34:51 +02:00
i915_gem_gtt.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-10-03 23:29:23 -07:00
i915_gem_stolen.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
i915_gem_tiling.c Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-next 2012-10-07 21:13:54 +10:00
i915_gem.c Linux 3.7-rc2 2012-10-22 14:34:51 +02:00
i915_ioc32.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
i915_irq.c drm/i915: convert pipe timing definitions to transcoder 2012-10-26 10:24:49 +02:00
i915_reg.h drm/i915: convert pipe timing definitions to transcoder 2012-10-26 10:24:49 +02:00
i915_suspend.c Linux 3.7-rc2 2012-10-22 14:34:51 +02:00
i915_sysfs.c drm/i915: Fix !CONFIG_PM sysfs for real this time 2012-09-20 14:23:11 +02:00
i915_trace_points.c drm/i915: [sparse] trivial sparse fixes 2012-04-18 10:34:49 +02:00
i915_trace.h drm/i915: Allow DRM_ROOT_ONLY|DRM_MASTER to submit privileged batchbuffers 2012-10-17 21:06:59 +02:00
intel_acpi.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
intel_bios.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
intel_bios.h UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
intel_crt.c drm/i915: Do not free the passed EDID in intel_connector_update_modes() 2012-10-22 19:33:46 +02:00
intel_ddi.c drm/i915: enable DDI eDP 2012-10-26 10:24:52 +02:00
intel_display.c drm/i915: add comment about pch pll enabling rules 2012-11-11 23:50:58 +01:00
intel_dp.c drm/i915: shut up spurious message in intel_dp_get_hw_state 2012-11-11 23:50:56 +01:00
intel_drv.h drm/i915/lvds: move fitting mode from intel_lvds_connector to intel_panel 2012-10-26 20:50:57 +02:00
intel_dvo.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-10-03 23:29:23 -07:00
intel_fb.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
intel_hdmi.c Linux 3.7-rc2 2012-10-22 14:34:51 +02:00
intel_i2c.c UAPI: (Scripted) Convert #include "..." to #include <path/...> in drivers/gpu/ 2012-10-02 18:01:07 +01:00
intel_lvds.c drm/i915/lvds: move fitting mode from intel_lvds_connector to intel_panel 2012-10-26 20:50:57 +02:00
intel_modes.c drm/i915: Do not free the passed EDID in intel_connector_update_modes() 2012-10-22 19:33:46 +02:00
intel_opregion.c Linux 3.7-rc2 2012-10-22 14:34:51 +02:00
intel_overlay.c Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes 2012-10-16 10:11:59 +10:00
intel_panel.c drm/i915: Move the fixed mode to intel_panel 2012-10-22 19:01:49 +02:00
intel_pm.c Linux 3.7-rc2 2012-10-22 14:34:51 +02:00
intel_ringbuffer.c Linux 3.7-rc2 2012-10-22 14:34:51 +02:00
intel_ringbuffer.h drm/i915: Allow DRM_ROOT_ONLY|DRM_MASTER to submit privileged batchbuffers 2012-10-17 21:06:59 +02:00
intel_sdvo_regs.h drm/i915: properly handle interlaced bit for sdvo dtd conversion 2012-05-24 17:53:52 +02:00
intel_sdvo.c drm/i915/sdvo: restore i2c adapter config on intel_sdvo_init() failures 2012-10-26 10:26:43 +02:00
intel_sprite.c drm/i915: VLV does not have a sprite scaler 2012-10-26 18:30:26 +02:00
intel_tv.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-10-03 23:29:23 -07:00
Makefile drm/i915: Support for ns2501-DVO 2012-07-25 18:23:48 +02:00