- 08 Dec, 2014 2 commits
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Daniel Vetter authored
Similar to a patch from Thomas Daniel for lrc contexts. This keeps both sides somewhat in sync and should make Dave Gordon happy. Note that both the wa and the golden context init code suffer a bit from an inssuficient split into driver load and hw init code. Which means we have a bunch of tests all over the place to check whether the one-time initialization has been done already or not. All that one-tim code should be moved into the one-time ring setup code, but that's work for later. Cc: Dave Gordon <david.s.gordon@intel.com> Cc: Thomas Daniel <thomas.daniel@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Dave Gordon <david.s.gordon@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Rickard Strandqvist authored
Remove the function intel_output_name() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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- 06 Dec, 2014 11 commits
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John Harrison authored
Added the request structure's 'uniq' identifier to the trace information. Also renamed the '_complete' trace event to '_notify' as it actually happens in the IRQ 'notify_ring()' function. The intention is to add a new '_complete' trace event which occurs when a request structure is actually marked as complete. However, at the moment the completion status is re-tested every time the query is made so there isn't a completion event as such. v2: New patch added to series. v3: Rebased to remove completion caching as that is apparently contentious. Change-Id: Ic9bcde67d175c6c03b96217cdcb6e4cc4aa45d67 For: VIZ-4377 Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Reviewed-by: Thomas Daniel <Thomas.Daniel@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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John Harrison authored
For debugging purposes, it is useful to be able to uniquely identify a given request structure as it works its way through the system. This becomes especially tricky once the seqno value is lazily allocated as then the request has nothing but its pointer to identify it for much of its life. Change-Id: Ie76b2268b940467f4cdf5a4ba6f5a54cbb96445d For: VIZ-4377 Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Reviewed-by: Thomas Daniel <Thomas.Daniel@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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John Harrison authored
There is a general theory that kzmalloc is better/safer than kmalloc, especially for interesting data structures. This change updates the request structure allocation to be zero filled. This also fixes crashes in the reset code. Quoting Mika's patch: "Clean the request structure on alloc. Otherwise we might end up referencing uninitialized fields. This is apparent when we try to cleanup the preallocated request on ring reset, before any request has been submitted to the ring. The request->ctx is foobar and we end up freeing the foobarness." Note that this fixes a regression introduced in commit 9eba5d4a Author: John Harrison <John.C.Harrison@Intel.com> Date: Mon Nov 24 18:49:23 2014 +0000 drm/i915: Ensure OLS & PLR are always in sync References: https://bugs.freedesktop.org/show_bug.cgi?id=86959 References: https://bugs.freedesktop.org/show_bug.cgi?id=86962 References: https://bugs.freedesktop.org/show_bug.cgi?id=86992 Change-Id: I68715ef758025fab8db763941ef63bf60d7031e2 For: VIZ-4377 Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Reviewed-by: Thomas Daniel <Thomas.Daniel@intel.com> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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John Harrison authored
The display related patches earlier in this series were edited during merge to improve the request unreferencing. Specifically, the need for de-referencing at interrupt time was removed. However, the resulting code did a 'deref(req) ; req = NULL' sequence rather than using the 'req_assign(req, NULL)' wrapper. The two are functionally equivalent, but using the wrapper is more consistent with all the other places where requests are assigned. Note that the whole point of the wrapper is that using it everywhere that request pointers are assigned means that the reference counting is done automatically and can't be accidentally forgotten about. Plus it allows simpler future maintainance if the reference counting mechanisms ever need to change. For: VIZ-4377 Signed-off-by: John Harrison <John.C.Harrison@Intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Matt Roper authored
If we extend the commit_plane handlers for each plane type to be able to handle fb=0, then we can easily implement plane disable via the update_plane handler. The cursor plane already works this way, and this is the direction we need to go to integrate with the atomic plane handler. We can now kill off the type-specific disable functions, as well as the redundant intel_plane_disable() (not to be confused with intel_disable_plane()). Note that prepare_plane_fb() only gets called as part of update_plane when fb!=NULL (by design, to match the semantics of the atomic plane helpers); this means that our commit_plane handlers need to handle the frontbuffer tracking for the disable case, even though they don't handle it for normal updates. v2: - Change BUG_ON to WARN_ON (Ander/Daniel) v3: - Drop unnecessary plane->crtc check since a previous patch to plane update ensures that plane->crtc will always be non-NULL, even for disable calls that might pass NULL from userspace. (Ander) - Drop a s/crtc/plane->crtc/ hunk that was unnecessary. (Ander) v4: - Fix missing whitespace (Ander) v5: - Use state's crtc rather than plane's crtc in intel_check_primary_plane(). plane->crtc could be NULL, but we've already fixed up state->crtc to ensure it's non-NULL (even if userspace passed it as NULL during a disable call). (Ander) Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Matt Roper authored
When disabling a plane, it is legal to pass crtc = NULL. Since planes on Intel hardware are tied to a fixed CRTC, go ahead and set state->crtc to the appropriate crtc in cases where it is passed to us as NULL. In a future patch, we will start using the update handler for plane disables, so this will help ensure we always have a non-NULL crtc pointer to work with. Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Matt Roper authored
Our .update_plane() handlers do the same check/prepare/commit/cleanup steps regardless of plane type. Consolidate them all into a single function that calls check/commit through a vtable. Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Matt Roper authored
All plane update functions need to unpin the old framebuffer when flipping to a new one. Pull this logic into a separate function to ease the integration with atomic plane helpers. v2: Don't wait for vblank if we don't have an old fb to cleanup (Ander) v3: Really don't wait for vblank if we don't have an old fb to cleanup. Previous version only handled this for primary planes; we need the same change on cursors/sprites too! (Ander) Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Matt Roper authored
The 'prepare' step for all types of planes are pretty similar; consolidate the three 'prepare' functions into a single function. This paves the way for future integration with the atomic plane handlers. Note that we pull the 'wait for pending flips' functionality out of the primary plane's prepare step and place it directly in the 'setplane' code. When we move to the atomic plane handlers, this code will be in the 'atomic begin' step. v2: Update GEM fb tracking for physical cursors also (Ander) Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Matt Roper authored
Reviewed-by: Bob Paauwe <bob.j.paauwe@intel.com> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Matt Roper authored
Primary and sprite planes have already been refactored to include a 'prepare' step which handles all the commit-time operations that could fail (i.e., pinning buffers and such). Refactor the cursor commit in a similar manner. For simplicity and consistency with other plane types, we also switch to using intel_pin_and_fence_fb_obj() to perform our pinning for non-physical cursors. This will allow us to more easily migrate the code into the atomic 'begin' handler in a plane-agnostic manner in a future patchset. v2: - Update GEM fb tracking for physical cursors too. (Ander) - Use intel_unpin_fb_obj() rather than i915_gem_object_unpin_from_display_plane() and do so while holding struct_mutex. (Ander) - Update plane->fb in commit_cursor_plane. This isn't really necessary since the DRM core does this for us in __setplane_internal(), but doing it in our driver once we know we're going to succeed helps avoid confusion. (Ander) Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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- 05 Dec, 2014 15 commits
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Gustavo Padovan authored
After some refactor intel_primary_plane_setplane() does the same as intel_pipe_set_base() so we can get rid of it and replace the calls with intel_primary_plane_setplane(). v2: take Ville's comments: - get the right arguments for update_plane() - use drm_crtc_get_hv_timing() v3 (by Matt): - Rebase to latest di-nightly codebase - Use primary->funcs->update_plane() in __intel_set_mode() - Use primary->funcs->disable_plane() in intel_crtc_disable() v4 (by Matt): - Drop redundant calls to intel_crtc_wait_for_pending_flips() before calling update_plane() (Ville) Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Acked-and-mourned-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Gustavo Padovan authored
Merge it into the plane update_plane() callback and make other users use the update_plane() functions instead. The fb != crtc->cursor->fb was already inside intel_crtc_cursor_set_obj() so we fold intel_crtc_cursor_set_obj() inside intel_commit_cursor_plane() and merge both paths into one. v5 (by Matt): - Rebase onto latest di-nightly codebase - Drop extra unreference call when we fail to pin (Ville) Reviewed-by(v4): Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Gustavo Padovan authored
We need to get hdisplay and vdisplay in a few places so create a helper to make our job easier. Note that drm_crtc_check_viewport() and intel_modeset_pipe_config() were previously making adjustments for doublescan modes and vscan > 1 modes, which was incorrect. Using our new helper fixes this mistake. v2 (by Matt): Use new stereo doubling function (suggested by Ville) v3 (by Matt): - Add missing kerneldoc (Daniel) - Use drm_mode_copy() (Jani) v4 (by Matt): - Drop stereo doubling function again; add 'stereo only' flag to drm_mode_set_crtcinfo() instead (Ville) v5 (by Matt): - Note behavioral change in drm_crtc_check_viewport() and intel_modeset_pipe_config(). (Ander) - Describe new adjustment flags in drm_mode_set_crtcinfo()'s kerneldoc. (Ander) Cc: dri-devel@lists.freedesktop.org Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Signed-off-by: Matt Roper <matthew.d.roper@intel.com> Acked-by: Dave Airlie <airlied@gmail.com> Reviewed-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Daniel Vetter authored
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Michel Thierry authored
We already have it for chv, but was missing for bdw. Signed-off-by: Michel Thierry <michel.thierry@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Gaurav K Singh authored
We need to program both port registers during dual link enable path. v2: Address review comments by Jani - Used a for loop instead of do-while loop. v3: Used for_each_dsi_port macro instead of for loop v4: Renamed mode_hactive variable to mode_hdisplay Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Gaurav K Singh authored
We need to program both port registers during dual link disable path. v2: Address review comments by Jani - Used a for loop instead of do-while loop. v3: Used for_each_dsi_port macro instead of for loop v4: Added comments for the usage of AFE latchout bit Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Gaurav K Singh authored
hactive, hfp, hbp, hsync needs to be halved for dual link MIPI Panels. Accordingly timing related mmio regs needs to be programmed for both MIPI Ports. v2: Address review comments by Jani - Used a for loop instead of do-while loop v3: Used for_each_dsi_port macro instead of for loop Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Gaurav K Singh authored
Instead of pipe configuration reg, cck reg to be used for checking whether DSI Pll is getting locked or not. v2: dpio_lock unlocked now in case DSI PLL lock fails Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Gaurav K Singh authored
For Dual link MIPI Panels, dsipll clock for both DSI0 and DSI1 needs to be enabled. v2: Address review comments by Jani - Added wait time for PLL to be locked. v3: separate patch created for cck read for checking PLL to be locked Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Gaurav K Singh authored
For dual link MIPI panels, SHUTDOWN packet needs to send to both Ports A & C during MIPI encoder disabling sequence. Similarly, TURN ON packet to be sent to both Ports during MIPI encoder enabling sequence. v2: Address review comments by Jani - Used a for loop instead of do-while loop. v3: Used for_each_dsi_port macro instead of for loop Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Gaurav K Singh authored
For dual link MIPI Panels, each port needs half of pixel clock. Pixel overlap can be enabled if needed by panel, then in that case, pixel clock will be increased for extra pixels. v2 : Address review comments by Jani - Removed the bit mask used for ->dual_link - Used DSI instead of MIPI for #define variables v3: Added the VLV_DISPLAY_BASE to VLV_CHICKEN_3 register Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Gaurav K Singh authored
For Dual Link MIPI Panels, both Port A and Port C should be enabled during the MIPI encoder enabling sequence. Similarly, during the disabling sequence, both ports needs to be disabled. v2: Used for_each_dsi_port macro instead of for loop v3: Used intel_dsi->ports instead of dual_link var for dual link configuration check v4: Masking of the required MIPI port bits before writing proper values Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Ville Syrjälä authored
MI_STORE_DWORD_IMM length has been the same ever since gen4. Rename the define to avoid potential confusion if someone tries to use this on pre-gen8. Also correct the comment on MI_MEM_VIRTUAL bit. It's present on 945,g33 and 965 only. Cc: Oscar Mateo <oscar.mateo@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> [danvet: Add USE_GGTT define for g4x+ too.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Jani Nikula authored
Release struct_mutex if init_rings() fails. This is a regression introduced in commit 35a57ffb Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Thu Nov 20 00:33:07 2014 +0100 drm/i915: Only init engines once Reported-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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- 04 Dec, 2014 4 commits
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Gaurav K Singh authored
This patch is in preparation of DSI dual link panels. For dual link panels, few packets needs to be sent to Port A or Port C or both. Based on the portno from MIPI Sequence Block#53, these sequences needs to be sent accordingly. v2: Addressed review comments by Jani - port variables named properly Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Gaurav K Singh authored
This patch is in preparation for the DSI dual link port enable and disable related changes. Signed-off-by: Gaurav K Singh <gaurav.k.singh@intel.com> Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Damien Lespiau authored
When playing around with debugfs and a HSW machine I noticed that we were displaying some garbled value in i915_ddb_info. This debugfs file is only meaningful for gen9+, so don't display anything on earlier platforms. Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Tvrtko Ursulin authored
Multiple GGTT VMAs per object will be introduced in the near future which will make it impossible to guarantee normal GGTT view is at the head of the list. Purpose of this patch is to break this assumption straight away so any potential hidden assumptions in the code base can be bisected to this simple patch. For: VIZ-4544 Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Suggested-by: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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- 03 Dec, 2014 8 commits
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Damien Lespiau authored
Hardware team updated the recommended translation values for DP/eDP 1.3. This should help with some stability and HBR2 issues. Signed-off-by: Damien Lespiau <damien.lespiau@intel.com> Reviewed-by: Satheeshakrishna M<satheeshakrishna.m@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Daniel Vetter authored
We need to do that every time we resume the rings, not just at load. I've overlooked this in my untangling of the ring init code. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Dave Gordon <david.s.gordon@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Thomas Daniel authored
A previous commit introduced engine init changes: commit 372ee59699d9 ("drm/i915: Only init engines once") This broke execlists as intel_lr_context_render_state_init was trying to emit commands to the RCS for the default context before the ring->init_hw was called. Made a new gen8_init_rcs_context function and assign in to render ring init_context. Moved call to intel_logical_ring_workarounds_emit into gen8_init_rcs_context to maintain previous functionality. Moved call to render_state_init from lr_context_deferred_create into gen8_init_rcs_context, and modified deferred_create to call ring->init_context for non-default contexts. Modified i915_gem_context_enable to call ring->init_context for the default context. So init_context will now always be called when the hw is ready - in i915_gem_context_enable for the default context and in lr_context_deferred_create for other contexts. Signed-off-by: Thomas Daniel <thomas.daniel@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Mika Kuoppala authored
The conversion table can be replaced with simple enough function. text data bss dec hex filename 839688 10987 24 850699 cfb0b drivers/gpu/drm/i915/i915.ko 839224 10987 24 850235 cf93b drivers/gpu/drm/i915/i915.ko Result is 494 saved bytes (.05525%). v2: - no run on sentences from subject (Chris, Jani) - be verbose about the savings (Chris, Daniel) Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v1) Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Daniel Vetter authored
Now that sanity prevails and we have the clean split between software init and starting the engines we can drop all the "have we allocate this struct already?" nonsense. Execlist code could benefit quite a bit more still, but that's for another patch. Reviewed-by: Dave Gordon <david.s.gordon@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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Ander Conselvan de Oliveira authored
The same logic can be implemented without it, and it even saves a line of code. Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Daniel Vetter authored
We can do this. And now there's finally the clean split between software setup and hardware setup I kinda wanted since multi-ring support was merged aeons ago. It only took almost 5 years. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Dave Gordon <david.s.gordon@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Daniel Vetter authored
With this all the ->init_hw hooks really only set up hw state needed to start the ring, all the software state setup and memory/buffer allocations happen beforehand. v2: We need to call intel_init_pipe_control after the ring init since otherwise engine->dev is NULL and it falls over. Currently that's now after the hw ring is enabled but a) we'll be fine as long as no one submits a batch b) this will change soon. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Dave Gordon <david.s.gordon@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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