This patch allows to optionally attach the lvds-channel to a panel
supported by a drm_panel driver using of-graph bindings, instead of
supplying the modes via display-timings in the device tree.

This depends on of_graph_get_port_by_id and uses the OF graph to
link the optional DRM panel to the LDB lvds-channel. The output
port number is 1 on devices without the 4-port input multiplexer
(i.MX5) and 4 on devices with the mux (i.MX6).

Before:

	ldb {
		...

		lvds-channel@0 {
			...

			display-timings {
				native-timing = <&timing1>;
				timing1: etm0700g0dh6 {
					hactive = <800>;
					vactive = <480>;
					clock-frequency = <33260000>;
					hsync-len = <128>;
					hback-porch = <88>;
					hfront-porch = <40>;
					vsync-len = <2>;
					vback-porch = <33>;
					vfront-porch = <10>;
					hsync-active = <0>;
					vsync-active = <0>;
					...
				};
			};
			...
		};
	};

After:
	ldb {
		...

		lvds-channel@0 {
			...

			port@4 {
				reg = <4>;

				lvds_out: endpoint {
					remote_endpoint = <&panel_in>;
				};
			};
		};
	};

	panel {
		compatible = "edt,etm0700g0dh6", "simple-panel";
		...

		port {
			panel_in: endpoint {
				remote-endpoint = <&lvds_out>;
			};
		};
	};

[Fixed build error due to missing select on DRM_PANEL --rmk]
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

This patch consolidates the different interface_pix_fmt, pixel_fmt, pix_fmt,
and pixfmt variables to a common name "bus_format" wherever they describe the
pixel format on the bus between display controller and encoder hardware.
At the same time, it renames imx_drm_panel_format to imx_drm_set_bus_format.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Tested-by: NEmil Renner Berthing <kernel@esmil.dk>

imx-drm internally misused the V4L2_PIX_FMT constants, which are supposed to
describe the pixel format of frame buffers in memory, to describe the pixel
format on the bus between the display controller and the encoder hardware.
Now that MEDIA_BUS_FMT constants are available to drm drivers, use those
instead.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Tested-by: NEmil Renner Berthing <kernel@esmil.dk>

Commit 9e74d292 ("staging: imx-drm: add LVDS666 support for parallel
display") describes a 24-bit bus format where three 6-bit components each
take the lower part of 8 bits with the two high bits zero padded. Add a
component-wise padded media bus format RGB666_1X24_CPADHI to support this
connection.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Tested-by: NEmil Renner Berthing <kernel@esmil.dk>

This patch adds the media bus format for a 24-bit bus format with three
8-bit YUV components.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>

This patch adds two more 24-bit RGB formats. BGR888 is more or less common,
GBR888 is used on the internal connection between the IPU display interface
and the TVE (VGA DAC) on i.MX53 SoCs.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>

This patch adds three new RGB media bus formats that describe
18-bit or 24-bit samples transferred over an LVDS bus with three
or four differential data pairs, serialized into 7 time slots,
using standard SPWG/PSWG/VESA or JEIDA data ordering.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>
Acked-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>

Add RGB444_1X12 and RGB565_1X16 format definitions and update the
documentation.
Signed-off-by: NBoris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: NMauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

This patch allows the IPU to divide the 27 MHz input clock from
the TVE by two to obtain the 13.5 MHz pixel clock needed for
NTSC/PAL SD modes.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

This patch allows interlaced frame buffer scanout for interlaced output
via HDMI or TV-Encoder.
Signed-off-by: NPhilipp Zabel <p.zabel@pengutronix.de>

add PM fix.

* 'drm-atmel-hlcdc-4.1-fixes' of git://github.com/bbrezillon/linux-at91:
  drm: atmel-hlcdc: use appropriate enabled flag in suspend/resume

- Allow amdkfd to work with multiple kgd instances. This is in preparation for
  AMD's new open source kernel graphic driver (amdgpu), and for the new
  AMD APU, Carrizo.

- Convert timestamping to use 64bit time accessors

- Three other minor changes.

* tag 'drm-amdkfd-next-2015-03-25' of git://people.freedesktop.org/~gabbayo/linux:
  drm/amdkfd: Add multiple kgd support
  drm/amdkfd: Convert timestamping to use 64bit time accessors
  drm/amdkfd: add debug prints for process teardown
  drm/amdkfd: Remove unused field from struct qcm_process_device
  drm/amdkfd: rename fence_wait_timeout

Merge branch 'drm-st-next-2015-03-19' of git://git.linaro.org/people/benjamin.gaignard/kernel into drm-next

This patch makes STI driver use the atomic helpers.
I have fix the comments done by Daniel on the first version and get
his ack with this second version.
* 'drm-st-next-2015-03-19' of git://git.linaro.org/people/benjamin.gaignard/kernel:
  drm: sti: convert driver to atomic modeset

The current code can only support one kgd instance. We have to
support multiple kgd instances in one system. i.e two amdgpu or two
radeon or one amdgpu + one radeon or more than two kgd instances.
Signed-off-by: NXihan Zhang <xihan.zhang@amd.com>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>

Convert the timestamping in the amdkfd driver to use a timespec64 and 64bit
time accessors.

Although the existing code is completely safe beyond y2038 because it deals
with monotonic time, this patch is still needed in order to kill off all uses
of struct timespec.
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>

Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NBen Goz <ben.goz@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

fence_wait_timeout() is an exported kernel symbol, so we should rename our
local function to something different.
Signed-off-by: NOded Gabbay <oded.gabbay@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>

Merge tag 'drm-intel-next-2015-03-13-merge' of git://anongit.freedesktop.org/drm-intel into drm-next

drm-intel-next-2015-03-13-rebased:
- EU count report param for gen9+ (Jeff McGee)
- piles of pll/wm/... fixes for chv, finally out of preliminary hw support
  (Ville, Vijay)
- gen9 rps support from Akash
- more work to move towards atomic from Matt, Ander and others
- runtime pm support for skl (Damien)
- edp1.4 intermediate link clock support (Sonika)
- use frontbuffer tracking for fbc (Paulo)
- remove ilk rc6 (John Harrison)
- a bunch of smaller things and fixes all over

Includes backmerge because git rerere couldn't keep up any more.

* tag 'drm-intel-next-2015-03-13-merge' of git://anongit.freedesktop.org/drm-intel: (366 commits)
  drm/i915: Make sure the primary plane is enabled before reading out the fb state
  drm/i915: Update DRIVER_DATE to 20150313
  drm/i915: Fix vmap_batch page iterator overrun
  drm/i915: Export total subslice and EU counts
  drm/i915: redefine WARN_ON_ONCE to include the condition
  drm/i915/skl: Implement WaDisableHBR2
  drm/i915: Remove the preliminary_hw_support shackles from CHV
  drm/i915: Read CHV_PLL_DW8 from the correct offset
  drm/i915: Rewrite IVB FDI bifurcation conflict checks
  drm/i915: Rewrite some some of the FDI lane checks
  drm/i915/skl: Enable the RPS interrupts programming
  drm/i915/skl: Enabling processing of Turbo interrupts
  drm/i915/skl: Updated the i915_frequency_info debugfs function
  drm/i915: Simplify the way BC bifurcation state consistency is kept
  drm/i915/skl: Updated the act_freq_mhz_show sysfs function
  drm/i915/skl: Updated the gen9_enable_rps function
  drm/i915/skl: Updated the gen6_rps_limits function
  drm/i915/skl: Restructured the gen6_set_rps_thresholds function
  drm/i915/skl: Updated the gen6_set_rps function
  drm/i915/skl: Updated the gen6_init_rps_frequencies function
  ...

rcar-du fixes

* 'drm/next/rcar-du' of git://linuxtv.org/pinchartl/fbdev:
  drm: rcar-du: Enable the atomic updates API
  drm: rcar-du: Don't initialize event->pipe field
  drm: rcar-du: Fix framebuffer reference leak through plane state
  MAINTAINERS: Remove rcar-du.h entry

adv7511 fixes.

* 'drm/next/adv7511' of git://linuxtv.org/pinchartl/fbdev:
  drm: adv7511: Refactor power management
  drm: adv7511: Fix nested sleep when reading EDID
  drm: adv7511: Fix DDC error interrupt handling

- DP MST support (disabled by default)
- non-ATOM aux support (DCE5+)
- output csc support for clamped RGB
- Lots of new queries for profiling, Gallium HUD, etc.
- Misc fixes

* 'drm-next-4.1' of git://people.freedesktop.org/~agd5f/linux: (40 commits)
  drm/radeon: add DisplayPort MST support (v2)
  drm/radeon: improve encoder picking functions (v2)
  drm/radeon: export max link rate calculation
  drm/radeon: add new atombios encoder/transmitter interfaces
  drm/radeon: add some MST registers
  radeon/fb: add wrapper functions around fb connector add/remove
  radeon/cik: add support for short HPD irqs
  radeon/si: add support for short HPD irqs
  radeon/evergreen: add support for short HPD irqs
  radeon: introduce a dp_work handler
  drm/dp_mst: add a function to retrieve vcpi slots
  drm/radeon: program auxch directly (v2)
  drm/radeon: fix doublescan modes (v2)
  drm/radeon: typo in parameter description
  drm/radeon: add support for read reg query from radeon info ioctl
  drm/radeon: add get_allowed_info_register for CIK
  drm/radeon: add get_allowed_info_register for SI
  drm/radeon: add get_allowed_info_register for cayman/TN
  drm/radeon: add get_allowed_info_register for EG/BTC
  drm/radeon: add get_allowed_info_register for r6xx/r7xx
  ...

Backmerge because of numerous and interleaving conflicts and git
rerere getting confused a bit too often.

Conflicts:
	drivers/gpu/drm/i915/intel_display.c

All conflicts are because of -next patches backported to -fixes, so
just go with the code in -next.
Signed-off-by: NDaniel Vetter <daniel.vetter@intel.com>

This adds initial DP 1.2 MST support to radeon, on CAYMAN
and up in theory.

This is off by default.

v2: agd5f:
- add UNIPHY3 offsets
- move atom cmd table code into atombios_encoders.c
- whitespace cleanup
- replace some magic numbers with proper defines
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

For MST we need to be able to pick front end encoders
separate from backend, but only for MST, so we need to
make the encoder picking interface smarter.

v2: agd5f: squash in:
drm/radeon: release digital encoder before asking for new one
Reported-by: NDieter Nützel <Dieter@nuetzel-hh.de>
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

We need this in the MST code later.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

These allow overriding the encoder id with the frontend,
we need this for setting up MST.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

These registers will be used later to setup
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

These are just two wrappers to be used in the MST code later.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This adds support to process short HPD irqs on CIK gpus.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This adds support to process short HPD irqs on SI gpus.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This adds support for processing short irqs, and triggering
the dp_work.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This is to be called on short HPD irqs, just introduce
the basic infrastructure for it.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

radeon requires this to get the slots for later filling
out a table on every transition.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

The atombios tables have an unfortunate restriction on only
being able to write 12 bytes, MST really wants 16-bytes here,
and since the hw can do it, we should just write directly to it.

This uses a module option to allow for it now, and maybe
we should provide the old code as a fallback for a while.

v2: (agd5f)
- move registers to a proper register header
- only enable on DCE5+
- enable by default on DCE5+
- Switch pad to aux mode before using it
- reformat instance handling to better match the
  rest of the driver
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Use the correct flags for atom.

v2: handle DRM_MODE_FLAG_DBLCLK
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

"defaul" -> "default"
Signed-off-by: NVincent Batts <vbatts@hashbangbash.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This allows us to query certain registers from userspace
for profiling and harvest configuration.  E.g., it can
be used by the GALLIUM_HUD for profiling the status of
various gfx blocks.
Tested-by: NMarek Olšák <marek.olsak@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Registers that can be fetched from the info ioctl.
Tested-by: NMarek Olšák <marek.olsak@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Registers that can be fetched from the info ioctl.
Tested-by: NMarek Olšák <marek.olsak@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>