drm: Miscellaneous fixes for v3.19-rc1

This is a small collection of fixes that I've been carrying around for a
while now. Many of these have been posted and reviewed or acked. The few
that haven't I deemed too trivial to bother.

* tag 'drm/fixes/for-3.19-rc1' of git://people.freedesktop.org/~tagr/linux:
  video/hdmi: Relicense header under MIT license
  drm/gma500: mdfld: Reuse video/mipi_display.h
  drm: Make drm_mode_create_tv_properties() signature consistent
  drm: Implement drm_get_pci_dev() dummy for !PCI
  drm/prime: Use unsigned type for number of pages
  drm/gem: Fix typo in kerneldoc
  drm: Use const data when creating blob properties
  drm: Use size_t for blob property sizes

drm/panel: Changes for v3.19-rc1

This contains support for a couple of new panels, updates for some GPIO
API changes and a bunch of updates to the MIPI DSI support that should
make it easier to write panel drivers in the future.

* tag 'drm/panel/for-3.19-rc1' of git://people.freedesktop.org/~tagr/linux: (31 commits)
  drm/panel: Add Sharp LQ101R1SX01 support
  drm/dsi: Do not require .owner field to be set
  drm/dsi: Resolve MIPI DSI device from phandle
  drm/dsi: Implement DCS set_{column,page}_address commands
  drm/dsi: Implement DCS {get,set}_pixel_format commands
  drm/dsi: Implement DCS get_power_mode command
  drm/dsi: Implement DCS soft_reset command
  drm/dsi: Implement DCS nop command
  drm/dsi: Add to DocBook documentation
  drm/dsi: Implement some standard DCS commands
  drm/dsi: Implement generic read and write commands
  drm/panel: s6e8aa0: Use standard MIPI DSI function
  drm/dsi: Add mipi_dsi_set_maximum_return_packet_size() helper
  drm/dsi: Constify mipi_dsi_msg
  drm/dsi: Make mipi_dsi_dcs_{read,write}() symmetrical
  drm/dsi: Add DSI transfer helper
  drm/dsi: Add message to packet translator
  drm/dsi: Introduce packet format helpers
  drm/panel: s6e8aa0: Fix build warnings on 64-bit
  drm/panel: ld9040: Fix build warnings on 64-bit
  ...

Merge tag 'drm-intel-next-2014-11-07-fixups' of git://anongit.freedesktop.org/drm-intel into drm-next

- skl watermarks code (Damien, Vandana, Pradeep)
- reworked audio codec /eld handling code (Jani)
- rework the mmio_flip code to use the vblank evade logic and wait for rendering
  using the standard wait_seqno interface (Ander)
- skl forcewake support (Zhe Wang)
- refactor the chv interrupt code to use functions shared with vlv (Ville)
- prep work for different global gtt views (Tvrtko Ursulin)
- precompute the display PLL config before touching hw state (Ander)
- completely reworked panel power sequencer code for chv/vlv (Ville)
- pre work to split the plane update code into a prepare and commit phase
  (Gustavo Padovan)
- golden context for skl (Armin Reese)
- as usual tons of fixes and improvements all over

* tag 'drm-intel-next-2014-11-07-fixups' of git://anongit.freedesktop.org/drm-intel: (135 commits)
  drm/i915: Use correct pipe config to update pll dividers. V2
  drm/i915: Plug memory leak in intel_shared_dpll_start_config()
  drm/i915: Update DRIVER_DATE to 20141107
  drm/i915: Add gen to the gpu hang ecode
  drm/i915: Cache HPLL frequency on VLV/CHV
  Revert "drm/i915/vlv: Remove check for Old Ack during forcewake"
  drm/i915: Make mmio flip wait for seqno in the work function
  drm/i915: Make __wait_seqno non-static and rename to __i915_wait_seqno
  drm/i915: Move the .global_resources() hook call into modeset_update_crtc_power_domains()
  drm/i915/audio: add DOC comment describing HDA over HDMI/DP
  drm/i915: make pipe/port based audio valid accessors easier to use
  drm/i915/audio: add audio codec enable debug log for g4x
  drm/i915/audio: add audio codec disable on g4x
  drm/i915: enable audio codec after port
  drm/i915/audio: add vlv/chv/gen5-7 audio codec disable sequence
  drm/i915/audio: rewrite vlv/chv and gen 5-7 audio codec enable sequence
  drm/i915/skl: Enable Gen9 RC6
  drm/i915/skl: Gen9 Forcewake
  drm/i915/skl: Log the order in which we flush the pipes in the WM code
  drm/i915/skl: Flush the WM configuration
  ...

Don't BUG out if the link reports an invalid (or plain unknown)
bandwidth value, but report the failure and fail gracefully.

Fixes a trivial compiler warning in case the BUG is ever compiled away.

Link: http://lkml.kernel.org/p/1415785566-12758-1-git-send-email-geert@linux-m68k.orgSigned-off-by: NChris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

For async commit, it is *intentional* that those locks are not held.
Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NRob Clark <robdclark@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Now that we're using lists instead of kfifo to store drm flip-work tasks
we do not need the size parameter passed to drm_flip_work_init function
anymore.
Moreover this function cannot fail anymore, we can thus remove the return
code.

Modify drm_flip_work_init users to take account of these changes.

[airlied: fixed two unused variable warnings]
Signed-off-by: NBoris BREZILLON <boris.brezillon@free-electrons.com>
Reviewed-by: NRob Clark <robdclark@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Make use of lists instead of kfifo in order to dynamically allocate
task entry when someone require some delayed work, and thus preventing
drm_flip_work_queue from directly calling func instead of queuing this
call.
This allow drm_flip_work_queue to be safely called even within irq
handlers.

Add new helper functions to allocate a flip work task and queue it when
needed. This prevents allocating data within irq context (which might
impact the time spent in the irq handler).
Signed-off-by: NBoris BREZILLON <boris.brezillon@free-electrons.com>
Reviewed-by: NRob Clark <robdclark@gmail.com>
Signed-off-by: NDave Airlie <airlied@redhat.com>

Use the new pipe config values to calculate the updated pll dividers.

This regression was introduced in

commit 0dbdf89f27b17ae1eceed6782c2917f74cbb5d59
Author: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Date:   Wed Oct 29 11:32:33 2014 +0200

    drm/i915: Add infrastructure for choosing DPLLs before disabling crtcs

	and

	commit 00d958817dd3daaa452c221387ddaf23d1e4c06f
	Author: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
	Date:   Wed Oct 29 11:32:36 2014 +0200

	    drm/i915: Covert remaining platforms to choose DPLLS before disabling CRTCs

v2: Use intel_pipe_will_have_type() to look at new configuration - Ander
Signed-off-by: NBob Paauwe <bob.j.paauwe@intel.com>
CC: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Tested-by: NJesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: NAnder Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>

This panel requires dual-channel mode. The device accepts command-mode
data on 8 lanes and will therefore need a dual-channel DSI controller.
The two interfaces that make up this device need to be instantiated in
the controllers that gang up to provide the dual-channel DSI host.
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NThierry Reding <treding@nvidia.com>

Drivers now no longer need to set the .owner field. It will be
automatically set at registration time.
Signed-off-by: NThierry Reding <treding@nvidia.com>

Add a function, of_find_mipi_dsi_device_by_node(), that can be used to
resolve a phandle to a MIPI DSI device.
Acked-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NThierry Reding <treding@nvidia.com>

Provide small convenience wrappers to set the column and page extents of
the frame memory accessed by the host processors.
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NThierry Reding <treding@nvidia.com>

Provide small convenience wrappers to query or set the pixel format used
by the interface.
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NThierry Reding <treding@nvidia.com>

Provide a small convenience wrapper that transmits a DCS get_power_mode
command. A set of bitmasks for the mode bits is also provided.
Acked-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NThierry Reding <treding@nvidia.com>

Provide a small convenience wrapper that transmits a DCS soft_reset
command.
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NThierry Reding <treding@nvidia.com>

Provide a small convenience wrapper that transmits a DCS nop command.
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NThierry Reding <treding@nvidia.com>

Integrate the MIPI DSI helpers into DocBook and clean up various
kerneldoc warnings. Also add a brief DOC section and clarify some
aspects of the mipi_dsi_host struct's .transfer() operation.
Acked-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NThierry Reding <treding@nvidia.com>

Add helpers for the {enter,exit}_sleep_mode, set_display_{on,off} and
set_tear_{on,off} DCS commands.
Signed-off-by: NYoungJun Cho <yj44.cho@samsung.com>
Reviewed-by: NSean Paul <seanpaul@chromium.org>
[treding: kerneldoc and other minor cleanup]
Signed-off-by: NThierry Reding <treding@nvidia.com>

Implement generic read and write commands. Selection of the proper data
type for packets is done automatically based on the number of parameters
or payload length.
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NThierry Reding <treding@nvidia.com>

Use the newly introduced mipi_dsi_set_maximum_return_packet_size()
function to replace an open-coded version.
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NThierry Reding <treding@nvidia.com>

This function can be used to set the maximum return packet size for a
MIPI DSI peripheral.
Signed-off-by: NYoungJun Cho <yj44.cho@samsung.com>
Reviewed-by: NSean Paul <seanpaul@chromium.org>
[treding: endianess, kerneldoc, return value]
Signed-off-by: NThierry Reding <treding@nvidia.com>

struct mipi_dsi_msg is a read-only structure, drivers should never need
to modify it. Make this explicit by making all references to the struct
const.
Acked-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NThierry Reding <treding@nvidia.com>

Currently the mipi_dsi_dcs_write() function requires the DCS command
byte to be embedded within the write buffer whereas mipi_dsi_dcs_read()
has a separate parameter. Make them more symmetrical by adding an extra
command parameter to mipi_dsi_dcs_write().

The S6E8AA0 driver relies on the old asymmetric API and there's concern
that moving to the new API may be less efficient. Provide a new function
with the old semantics for those cases and make the S6E8AA0 driver use
it instead.
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NThierry Reding <treding@nvidia.com>

A common pattern is starting to emerge for higher level transfer
helpers. Create a new helper that encapsulates this pattern and avoids
code duplication.
Acked-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NThierry Reding <treding@nvidia.com>

This commit introduces a new function, mipi_dsi_create_packet(), which
converts from a MIPI DSI message to a MIPI DSI packet. The MIPI DSI
packet is as close to the protocol described in the DSI specification as
possible and useful in drivers that need to write a DSI packet into a
FIFO to send a message off to the peripheral.
Suggested-by: NAndrzej Hajda <a.hajda@samsung.com>
Reviewed-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NThierry Reding <treding@nvidia.com>

Add two helpers, mipi_dsi_packet_format_is_{short,long}(), that help in
determining the format of a packet.
Signed-off-by: NThierry Reding <treding@nvidia.com>

OpenBSD wants to reuse this file but needs the license to be more
permissive.
Acked-by: NAlban Bedel <alban.bedel@avionic-design.de>
Acked-by: NDaniel Vetter <daniel.vetter@intel.com>
Acked-by: NAlex Deucher <alexander.deucher@amd.com>
Acked-by: NChristian König <christian.koenig@amd.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

The GMA500 driver redefines many constants already found in the generic
header. Replace uses of the custom defines by the standard ones and get
rid of the duplicate defininitions.
Acked-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

The prototype and the function implementation differ in their signature.
Make them consistent and use an unsigned integer for the number of modes
while at it.
Signed-off-by: NThierry Reding <treding@nvidia.com>

Implementing a dummy of this function allows drivers that use it to be
built on platforms that don't have PCI. This can happen for example if
the nouveau driver is built on Tegra without PCI enabled (or on 64-bit
ARM where PCI is not yet implemented).
Signed-off-by: NThierry Reding <treding@nvidia.com>

The number of pages can never be negative, so an unsigned type is
enough. This also matches the type of the n_pages argument of the
sg_alloc_table_from_pages() function.
Signed-off-by: NThierry Reding <treding@nvidia.com>

The function being documented is drm_gem_object_handle_free(), not
drm_gem_object_free().
Signed-off-by: NThierry Reding <treding@nvidia.com>

Creating a blob property will always copy the input data so the data
that is passed in can be const.
Signed-off-by: NThierry Reding <treding@nvidia.com>

size_t is the standard type when dealing with sizes of all kinds. Use it
consistently when instantiating DRM blob properties.
Signed-off-by: NThierry Reding <treding@nvidia.com>

Radeon patches for 3.19.  Christian has a number of GPUVM improvements
slated as well, but I'd like to wait until he gets back to work next week
to pull those in. Highlights of this pull:
- ttm performance improvements
- CI dpm fixes

* 'drm-next-3.19' of git://people.freedesktop.org/~agd5f/linux: (26 commits)
  drm/radeon/si/ci: make u8 static arrays constant
  drm/radeon: set power control in ci dpm enable
  drm/radeon: powertune fixes for hawaii
  drm/radeon: fix dpm mc init for certain hawaii boards
  drm/radeon: set bootup pcie level to max for ci dpm
  drm/radeon: fix default dpm state setup
  drm/radeon: workaround a hw bug in bonaire pcie dpm
  drm/radeon: fix mclk vddc configuration for cards for hawaii
  drm/radeon: fix sclk DS enablement
  drm/radeon: fix activity settings for sclk and mclk for CI
  drm/radeon: improve mclk param calcuations for ci dpm
  drm/radeon: fix dram timing for certain hawaii boards
  drm/radeon: switch force state commands for CI
  drm/radeon: fix for memory training on bonaire 0x6649
  drm/radeon/ci: handle gpio controlled dpm features properly
  drm/radeon: store the gpio shift as well
  drm/radeon: export radeon_atombios_lookup_gpio
  drm/radeon: fix typo in CI dpm disable
  drm/radeon: rework CI dpm thermal setup
  drm/radeon: rework SI dpm thermal setup
  ...

These two arrays don't change, just make them constant,
reduces data segment by a few bytes.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Necessary for poper operation.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

- bapm is not available on hawaii
- update pt defaults
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Needs special overrides for certain vram configurations.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Avoids problems when re-loading the driver.  Does not
affect power saving when dpm is enabled.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>