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aa17cdb4f8
linux/drivers/gpu/drm/i915
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Jani Nikula aa17cdb4f8 drm/i915: initialize backlight max from VBT 
Normally we determine the backlight PWM modulation frequency (which we
also use as backlight max value) from the backlight registers at module
load time, expecting the registers have been initialized by the BIOS. If
this is not the case, we fail.

The VBT contains the backlight modulation frequency in Hz. Add platform
specific functions to convert the frequency in Hz to backlight PWM
modulation frequency, and use them to initialize the backlight when the
registers are not initialized by the BIOS.

v2: Fix SPT and VLV. Thanks to Clint for the VLV code.

Cc: Clint Taylor <clinton.a.taylor@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-09-07 18:29:01 +02:00
..
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
dvo.h
i915_cmd_parser.c drm/i915: Fix cmdparser STORE/LOAD command descriptors 2015-09-04 10:43:09 +02:00
i915_debugfs.c drm/i915: use the yesno helper for logging 2015-09-04 10:14:22 +02:00
i915_dma.c drm/i915: access the PP_ON_DELAYS/PP_OFF_DELAYS regs only pre GEN5 2015-09-04 10:18:51 +02:00
i915_drv.c drm/i915: Reinitialize HPD after runtime D3 2015-09-02 16:57:03 +02:00
i915_drv.h drm/i915: initialize backlight max from VBT 2015-09-07 18:29:01 +02:00
i915_gem_batch_pool.c
i915_gem_batch_pool.h
i915_gem_context.c drm/i915: Always enable execlists on BDW for vgpu 2015-09-02 11:45:50 +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 drm/i915: remove unused has_dma_mapping flag 2015-07-13 22:42:41 +02:00
i915_gem_evict.c
i915_gem_execbuffer.c Merge tag 'drm-intel-fixes-2015-07-15' into drm-intel-next-queued 2015-07-15 16:36:50 +02:00
i915_gem_fence.c drm/i915/gtt: Allow >= 4GB offsets in X86_32 2015-08-14 18:16:30 +02:00
i915_gem_gtt.c drm/i915/gtt: Avoid calling kcalloc in a loop when allocating temp bitmaps 2015-09-04 10:09:56 +02:00
i915_gem_gtt.h drm/i915/gtt: Allow >= 4GB offsets in X86_32 2015-08-14 18:16:30 +02:00
i915_gem_render_state.c drm/i915: Add provision to extend Golden context batch 2015-07-21 09:30:57 +02:00
i915_gem_render_state.h drm/i915: Add provision to extend Golden context batch 2015-07-21 09:30:57 +02:00
i915_gem_shrinker.c
i915_gem_stolen.c drm/i915: Fix build warning on 32-bit 2015-08-26 10:15:36 +03:00
i915_gem_tiling.c Merge tag 'drm-intel-fixes-2015-08-14' into drm-intel-next-fixes 2015-08-14 18:11:30 +02:00
i915_gem_userptr.c drm/i915/userptr: Kill user_size limit check 2015-08-14 18:16:27 +02:00
i915_gem.c drm/i915/bxt: don't allow cached GEM mappings on A stepping 2015-08-26 09:39:14 +02:00
i915_gpu_error.c drm/i915: add yesno utility function 2015-09-02 11:16:44 +02:00
i915_guc_reg.h drm/i915: GuC-specific firmware loader 2015-08-14 18:16:39 +02:00
i915_guc_submission.c drm/i915: Notify GuC rc6 state 2015-09-02 10:39:01 +02:00
i915_ioc32.c Merge tag 'drm-intel-fixes-2015-07-15' into drm-intel-next-queued 2015-07-15 16:36:50 +02:00
i915_irq.c drm/i915: Future proof interrupt handler. 2015-09-04 10:10:05 +02:00
i915_params.c Partially revert "drm/i915: Use full atomic modeset." 2015-08-26 15:14:52 +02:00
i915_reg.h drm/i915: initialize backlight max from VBT 2015-09-07 18:29:01 +02:00
i915_suspend.c drm/i915: use dev_priv for the FBC functions 2015-07-08 11:39:45 +02:00
i915_sysfs.c drm/i915/vlv: fix RC6 residency time calculation 2015-06-15 11:56:37 +02:00
i915_trace_points.c
i915_trace.h drm/i915/gen8: implement alloc/free for 4lvl 2015-08-14 18:16:21 +02:00
i915_vgpu.c
i915_vgpu.h drm/i915: Update PV INFO page definition for Intel GVT-g 2015-09-02 11:46:12 +02:00
intel_acpi.c
intel_atomic_plane.c drm/i915: Remove transitional references from intel_plane_atomic_check. 2015-06-22 14:28:29 +02:00
intel_atomic.c drm/i915: remove excessive scaler debugging messages 2015-08-14 18:16:45 +02:00
intel_audio.c Merge tag 'drm-intel-fixes-2015-07-15' into drm-intel-next-queued 2015-07-15 16:36:50 +02:00
intel_bios.c drm/i915: access the PP_ON_DELAYS/PP_OFF_DELAYS regs only pre GEN5 2015-09-04 10:18:51 +02:00
intel_bios.h drm/i915: access the PP_ON_DELAYS/PP_OFF_DELAYS regs only pre GEN5 2015-09-04 10:18:51 +02:00
intel_crt.c drm/i915: Get rid of dpms handling. 2015-08-14 17:50:33 +02:00
intel_csr.c drm/i915/gen9: Removed byte swapping for csr firmware 2015-08-05 11:00:04 +02:00
intel_ddi.c Merge tag 'drm-intel-next-fixes-2015-09-02' into drm-intel-next-queued 2015-09-02 14:33:42 +02:00
intel_display.c drm/i915: Dump pfit state as hex 2015-09-04 10:33:23 +02:00
intel_dp_mst.c Merge tag 'drm-intel-next-fixes-2015-09-02' into drm-intel-next-queued 2015-09-02 14:33:42 +02:00
intel_dp.c drm/i915: use the yesno helper for logging 2015-09-04 10:14:22 +02:00
intel_drv.h drm/i915/dp: move TPS3 logic to where it's used 2015-09-04 10:14:06 +02:00
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: Changes required to enable DSI Video Mode on CHT 2015-07-03 07:39:02 +02:00
intel_dsi.c drm/i915: DSI pixel clock check 2015-08-26 10:29:12 +02:00
intel_dsi.h drm/i915: Use the CRC gpio for panel enable/disable 2015-07-21 09:22:43 +02:00
intel_dvo.c drm/i915: DVO pixel clock check 2015-08-26 10:29:20 +02:00
intel_fbc.c drm/i915: fix FBC frontbuffer tracking flushing code 2015-08-05 09:59:44 +02:00
intel_fbdev.c Merge tag 'drm-intel-next-fixes-2015-09-02' into drm-intel-next-queued 2015-09-02 14:33:42 +02:00
intel_fifo_underrun.c
intel_frontbuffer.c drm/i915: fix FBC frontbuffer tracking flushing code 2015-08-05 09:59:44 +02:00
intel_guc_fwif.h drm/i915/guc: Support GuC version 4.3 2015-09-02 09:54:56 +02:00
intel_guc_loader.c drm/i915/guc: Support GuC version 4.3 2015-09-02 09:54:56 +02:00
intel_guc.h drm/i915: Integrate GuC-based command submission 2015-08-14 18:16:44 +02:00
intel_hdmi.c Merge tag 'drm-intel-next-fixes-2015-09-02' into drm-intel-next-queued 2015-09-02 14:33:42 +02:00
intel_hotplug.c drm/i915/skl: enable DDI-E hotplug 2015-08-26 10:24:25 +03:00
intel_i2c.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2015-06-26 13:18:51 -07:00
intel_lrc.c drm/i915: Refactor common ringbuffer allocation code 2015-09-04 10:17:00 +02:00
intel_lrc.h drm/i915: Integrate GuC-based command submission 2015-08-14 18:16:44 +02:00
intel_lvds.c drm/i915: access the PP_ON_DELAYS/PP_OFF_DELAYS regs only pre GEN5 2015-09-04 10:18:51 +02:00
intel_mocs.c drm/i915: Added Programming of the MOCS 2015-07-14 17:13:14 +02:00
intel_mocs.h drm/i915: Added Programming of the MOCS 2015-07-14 17:13:14 +02:00
intel_modes.c
intel_opregion.c Merge tag 'drm-intel-fixes-2015-07-15' into drm-intel-next-queued 2015-07-15 16:36:50 +02:00
intel_overlay.c drm/i915: Update intel_ring_begin() to take a request structure 2015-06-23 14:02:29 +02:00
intel_panel.c drm/i915: initialize backlight max from VBT 2015-09-07 18:29:01 +02:00
intel_pm.c drm/i915/bxt: Clean up bxt_init_clock_gating 2015-09-07 18:19:00 +02:00
intel_psr.c drm/i915: VLV/CHV PSR: Increase wait delay time before active PSR. 2015-08-05 10:07:44 +02:00
intel_renderstate_gen6.c
intel_renderstate_gen7.c
intel_renderstate_gen8.c
intel_renderstate_gen9.c
intel_renderstate.h
intel_ringbuffer.c drm/i915: Refactor common ringbuffer allocation code 2015-09-04 10:17:00 +02:00
intel_ringbuffer.h drm/i915: Refactor common ringbuffer allocation code 2015-09-04 10:17:00 +02:00
intel_runtime_pm.c Merge tag 'drm-intel-next-fixes-2015-09-02' into drm-intel-next-queued 2015-09-02 14:33:42 +02:00
intel_sdvo_regs.h
intel_sdvo.c drm/i915: Make some string arrays const 2015-08-26 11:19:36 +02:00
intel_sideband.c drm/i915: s/dpio_lock/sb_lock/ 2015-05-28 11:13:51 +02:00
intel_sprite.c drm/i915: Also record time difference if vblank evasion fails, v2. 2015-09-02 13:51:40 +02:00
intel_tv.c drm/i915: Use ARRAY_SIZE() instead of hand rolling it 2015-08-26 11:19:30 +02:00
intel_uncore.c drm/i915: Future proof uncore_init. 2015-09-04 10:10:57 +02:00
Kconfig drm/i915: Use CONFIG_DRM_FBDEV_EMULATION 2015-08-11 14:00:29 +02:00
Makefile Merge tag 'drm-intel-next-fixes-2015-09-02' into drm-intel-next-queued 2015-09-02 14:33:42 +02:00