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24ded20442
linux/drivers/gpu/drm/i915
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Daniel Vetter 24ded20442 drm/i915: properly enable the blc controller on the right pipe 
On gen4+ we have a bitfield to specify from which pipe the backlight
controller should take it's clock. For PCH split platforms we've
already set these up, but only at initialization time. And without
taking into account the 3rd pipe added with ivb.

For gen4, we've completely ignored these. Although we do restrict lvds
to the 2nd pipe, so this is only a problem on machines where we boot
up with the lvds on the first pipe.

So restructure the code to enable the backlight on the right pipe at
modeset time.

v2: For odd reasons panel_enable_backlight gets called twice in a
modeset, so we can't WARN_ON in there if the backlight controller is
switched on already.

v3: backlight enable can also be called through dpms on, so the check
in there is legit. Update the comment to reflect that.

Tested-By: Kamal Mostafa <kamal@canonical.com>
Bugzilla: https://bugs.launchpad.net/bugs/954661
Cc: Carsten Emde <C.Emde@osadl.org>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2012-06-12 19:27:58 +02:00
..
dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c
dvo_sil164.c
dvo_tfp410.c
dvo.h
i915_debugfs.c drm/i915: add min freq control to debugfs 2012-06-04 21:34:47 +02:00
i915_dma.c drm/i915: Add wait render timeout get param 2012-06-06 12:28:40 +02:00
i915_drv.c i915: add dmabuf/prime buffer sharing support. 2012-05-23 10:47:10 +01:00
i915_drv.h Merge remote-tracking branch 'airlied/drm-prime-vmap' into drm-intel-next-queued 2012-06-01 10:52:54 +02:00
i915_gem_debug.c drm/i915: Remove the list of pinned inactive objects 2012-05-03 11:18:11 +02:00
i915_gem_dmabuf.c i915: add dma-buf vmap support for exporting vmapped buffer 2012-05-31 14:13:57 +01:00
i915_gem_evict.c drm/i915: Introduce for_each_ring() macro 2012-05-19 22:39:53 +02:00
i915_gem_execbuffer.c drm/i915: Check whether the ring is initialised prior to dispatch 2012-05-19 22:39:53 +02:00
i915_gem_gtt.c i915: add dmabuf/prime buffer sharing support. 2012-05-23 10:47:10 +01:00
i915_gem_stolen.c drm/i915: Split the stolen handling for GEM out of i915_dma.c 2012-05-03 11:18:11 +02:00
i915_gem_tiling.c drm/i915: Only the zap the VMA after updating the tiling parameters 2012-05-03 11:18:07 +02:00
i915_gem.c drm/i915: Inifite timeout for wait ioctl 2012-06-06 12:25:46 +02:00
i915_ioc32.c drm/i915: [sparse] trivial sparse fixes 2012-04-18 10:34:49 +02:00
i915_irq.c Merge remote-tracking branch 'airlied/drm-prime-vmap' into drm-intel-next-queued 2012-06-01 10:52:54 +02:00
i915_reg.h drm/i915: clear up backlight #define confusion on gen4+ 2012-06-12 19:25:46 +02:00
i915_suspend.c drm/i915: gen6_enable_rps() wants to be called after ring initialisation 2012-05-19 22:38:29 +02:00
i915_sysfs.c drm/i915: simplify sysfs setup code 2012-06-01 10:00:57 +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: improve i915_wait_request_begin trace 2012-05-25 09:55:15 +02:00
intel_acpi.c drm/i915: [sparse] trivial sparse fixes 2012-04-18 10:34:49 +02:00
intel_bios.c Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-core-next 2012-04-12 10:27:01 +01:00
intel_bios.h drm/i915: VBT Parser cleanup for eDP block 2012-01-13 08:37:44 -08:00
intel_crt.c drm/i915: account for only one PCH receiver on Haswell 2012-05-19 22:39:47 +02:00
intel_ddi.c drm/i915: add set_infoframes to struct intel_hdmi 2012-05-30 21:36:58 +02:00
intel_display.c drm/i915: clear up backlight #define confusion on gen4+ 2012-06-12 19:25:46 +02:00
intel_dp.c drm/i915: don't chnage the original mode in dp_mode_fixup 2012-06-04 21:29:47 +02:00
intel_drv.h drm/i915: properly enable the blc controller on the right pipe 2012-06-12 19:27:58 +02:00
intel_dvo.c drm/i915/intel_i2c: refactor using intel_gmbus_get_adapter 2012-03-28 14:40:44 +02:00
intel_fb.c Linux 3.4-rc6 2012-05-07 14:02:14 +02:00
intel_hdmi.c drm/i915: ensure HDMI port is disabled inside set_infoframes 2012-06-12 19:19:52 +02:00
intel_i2c.c drm/i915: be more careful when returning -ENXIO in gmbus transfer 2012-05-21 21:04:21 +02:00
intel_lvds.c drm/i915: properly enable the blc controller on the right pipe 2012-06-12 19:27:58 +02:00
intel_modes.c Merge branch 'drm-intel-next' of git://people.freedesktop.org/~danvet/drm-intel into drm-core-next 2012-04-12 10:27:01 +01:00
intel_opregion.c drm/i915: [sparse] __iomem fixes for opregion 2012-05-03 11:18:00 +02:00
intel_overlay.c drm/i915: s/i915_wait_request/i915_wait_seqno/g 2012-05-25 14:18:42 +02:00
intel_panel.c drm/i915: properly enable the blc controller on the right pipe 2012-06-12 19:27:58 +02:00
intel_pm.c drm/i915: tune down the noise of the RP irq limit fail 2012-05-25 10:29:15 +02:00
intel_ringbuffer.c drm/i915: enable parity error interrupts 2012-05-31 12:07:13 +02:00
intel_ringbuffer.h drm/i915: Introduce for_each_ring() macro 2012-05-19 22:39:53 +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 Merge remote-tracking branch 'airlied/drm-prime-vmap' into drm-intel-next-queued 2012-06-01 10:52:54 +02:00
intel_sprite.c drm/i915: properly check for MODESET for kms driver ioctls 2012-05-03 11:18:13 +02:00
intel_tv.c drm/i915: Adding TV Out Missing modes. 2012-05-24 17:54:08 +02:00
Makefile i915: add dmabuf/prime buffer sharing support. 2012-05-23 10:47:10 +01:00