Replace /include/ (dtc) with #include (C pre-processor) for all Tegra DT
files, so that gcc -E handles the entire include tree, and hence any of
those files can #include some other file e.g. for constant definitions.

This allows future use of #defines and header files in order to define
names for various constants, such as the IDs and flags in GPIO
specifiers. Use of those features will increase the readability of the
device tree files.
Signed-off-by: NStephen Warren <swarren@nvidia.com>

This patch updates all Tegra board files so that they contain all the
properties required by the updated USB DT binding. Note that this patch
only adds the new properties and does not yet remove the old properties,
in order to maintain bisectability. The old properties will be removed
once the driver has been updated to assume the new bindings.
Signed-off-by: NVenu Byravarasu <vbyravarasu@nvidia.com>
[swarren: fixed some newly added regulator-name properties to better
match schematic, avoided duplicate regulator-name on Whistler.]
Signed-off-by: NStephen Warren <swarren@nvidia.com>

1. All Tegra20 ULPI reset GPIO DT properties are modified to indicate active
low nature of the GPIO.
2. Placed USB PHY DT node immediately below the EHCI controller DT nodes
and corrected reg value in the name of USB PHY DT node.
Signed-off-by: NVenu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: NStephen Warren <swarren@nvidia.com>

Correct IDs for cdev1 and cdev2 are 94 and 93 respectively.
Signed-off-by: NPrashant Gaikwad <pgaikwad@nvidia.com>
[swarren: split into separate driver and device-tree patches]
Signed-off-by: NStephen Warren <swarren@nvidia.com>

Adding the PM configuration of PMC when the platform support suspend
function.
Signed-off-by: NJoseph Lo <josephl@nvidia.com>
Signed-off-by: NStephen Warren <swarren@nvidia.com>

This adds the power gpio key to DT and enable the wakeup of the gpio key
for the device. The Seaboard and paz00 already had the power gpio key
binding and the power key of Whistler was on KBC. So these boards' device
tree didn't include in this patch.
Signed-off-by: NJoseph Lo <josephl@nvidia.com>
Signed-off-by: NStephen Warren <swarren@nvidia.com>

Audio-related clocks need to be represented in the device tree. Update
bindings to describe which clocks are needed, and DT files to include
those clocks.
Signed-off-by: NStephen Warren <swarren@nvidia.com>

Adding the bindings of the clock source of PMC in DT.
Signed-off-by: NJoseph Lo <josephl@nvidia.com>
Signed-off-by: NStephen Warren <swarren@nvidia.com>

The GPIO pin of SD slot card detection should active low.
Signed-off-by: NJoseph Lo <josephl@nvidia.com>
Tested-by: NThierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: NStephen Warren <swarren@nvidia.com>

As reset GPIO information is PHY specific detail, adding
it to PHY DT node.
Signed-off-by: NVenu Byravarasu <vbyravarasu@nvidia.com>
Signed-off-by: NStephen Warren <swarren@nvidia.com>

No Tegra20 Platform is running PLL_P at another rate than 216MHz, nor is
any using any other PLL as UART source clock. Move attribute into SoC
level dtsi file to slim down board DT files.
Signed-off-by: NLucas Stach <dev@lynxeye.de>
Signed-off-by: NStephen Warren <swarren@nvidia.com>

... and disable tri-state from the pingroup that contains the poweroff
GPIO.
Signed-off-by: NStephen Warren <swarren@nvidia.com>

Enable host1x, and the HDMI output. Harmony also has a DVI port with an
HDMI form-factor connector, driven by Tegra's LVDS output. This isn't
enabled yet, due to potential issues with having multiple outputs enabled.

Correct DDC I2C frequency to 100KHz.

Add dummy/fixed regulators to satisfy the HDMI driver.
Signed-off-by: NThierry Reding <thierry.reding@avionic-design.de>
[swarren: add commit description, remove enable of DVI port]
Signed-off-by: NStephen Warren <swarren@nvidia.com>

TrimSlice contains a 1MiB SPI flash. Represent this in the device tree.
Signed-off-by: NStephen Warren <swarren@nvidia.com>

This was accidentally disabled by commit 2a5fdc9a "ARM: dt: tegra:
invert status=disable vs status=okay".

Cc: <stable@vger.kernel.org> # v3.5 (file is named tegra-trimslice.dts there)
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

On TrimSlice, Tegra's USB1 port may be routed to either an external micro
USB port, or an internal USB->SATA bridge for SSD or HDD. This muxing is
controlled by a GPIO. Whilst not strictly a VBUS GPIO, the TrimSlice
board files caused this GPIO to be set appropriately to enable the SATA
bridge by passing it as the VBUS GPIO to the USB driver. Echo this same
configuration in device tree to enable the SATA bridge.

An alternative might be to implement a full USB bus mux driver. However,
that seems over-complex right now.

Cc: <stable@vger.kernel.org> # v3.5 (file is named tegra-trimslice.dts there)
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

Most ARM ${board}.dts files are already named ${soc}-${board}.dts. This
change modifies the Tegra board files to be named the same way for
consistency.

Once a related change is made in U-Boot, this will cause both U-Boot and
the kernel to use the same names for the .dts files and SoC identifiers,
thus allowing U-Boot's recently added "soc" and "board" environment
variables to be used to construct the name of Tegra .dtb files, and hence
allow board-generic U-Boot bootcmd scripts to be written.
Signed-off-by: NStephen Warren <swarren@nvidia.com>

In tegra*.dtsi, set status="disable" for all HW modules that the board
design may choose not to use. Update all boards to specifically enable
any of those modules that are useful by setting status="okay".

This makes board files say which features they do use, rather than which
they don't, which feels more logical. It also makes the .dts files
slightly smaller, at least for existing content.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NOlof Johansson <olof@lixom.net>

Sort the nodes according to the following rules:
* First, any overrides for properties or nodes created by included files,
  in the order they appeared in the include file.
* Second, any nodes with a reg property, in numerical order.
* Third, any nodes without a reg property, in alphabetical order of node
  name.

The second sorting rule at least will probably help if/when we need to
explicitly insert nodes for the various busses in Tegra; that will just
be an indentation change rather than also a node re-ordering.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NOlof Johansson <olof@lixom.net>

Ensure that all Tegraa GPIO specifiers contain a comment indicating which
GPIO name the number refers to.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NOlof Johansson <olof@lixom.net>

DT node names only need to include the unit address if it's required to
make the node name unique. Remove the unnecessary unit addresses.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NOlof Johansson <olof@lixom.net>

Consistently don't place a space after < or before >.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NOlof Johansson <olof@lixom.net>

* Add node for the audio codec
* Enable Tegra's I2S1 controller and DAS
* Add node for top-level sound complex
Signed-off-by: NStephen Warren <swarren@nvidia.com>

This is the micro-SD card slot.
Signed-off-by: NStephen Warren <swarren@nvidia.com>

According to the device's datasheet, it can support an interrupt too.
However, the existing board file doesn't specify an interrupt, and I
don't have the schematics, so I can't add an interrupts property. The
current Linux driver doesn't support anyway.
Signed-off-by: NStephen Warren <swarren@nvidia.com>

Ensure that the USB ULPI signals are not tri-stated, and have no pull-
up or pull-down.

Ensure that the pingroup hosting the USB ULPI reset signal (GPIO PV0 or
PV1 depending on the board, so UAC) is not tri-stated, and has no pull-
up or pull-down.

This change appears larger than it is due to the grouping and sorting of
the pin configuration data.
Signed-off-by: NStephen Warren <swarren@nvidia.com>

ULPI PHYs have a reset signal, and different boards use a different GPIO
for this task. Add a property to device tree to represent this.

I'm not sure if adding this property to the EHCI controller node is
entirely correct; perhaps eventually we should have explicit separate
nodes for the various PHYs. However, we don't have that right now, so this
binding seems like a reasonable choice.

Cc: <devicetree-discuss@lists.ozlabs.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: <linux-usb@vger.kernel.org>
Signed-off-by: NStephen Warren <swarren@nvidia.com>

This adds a complete pinmux configuration to all Tegra20 device tree
files. This allows removal of board-dt-tegra20.c's use of the pinmux
board files, and the special device tree handling in board-pinmux.c.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Acked-by: NOlof Johansson <olof@lixom.net>

Add complete bindings to instantiate and configure the codec and
top-level audio complex on all currently supported boards using the
Tegra+WM8903 audio driver.

On those boards, disable the I2S2 controller since it isn't used.

On boards not using the WM8903 codec, disable all the audio devices;
they can be re-enabled once the relevant codec and ASoC machine drivers
have been ported to device-tree.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

Mark any SDHCI controllers that aren't registered by the board files as
disabled in the device-tree files.

In practice, these controllers:

* Have nothing hooked up to them at all, or
* For ports intended for SDIO usage, the drivers for anything that might
  be attached are not in the device-tree yet. If/when drivers appear, the
  SD/MMC port can be re-enabled.

The only possible exception is TrimSlice's mico SD slot, but that wasn't
enabled in the board files before anyway, and doesn't work when all the
SDHCI controllers are enabled anyway.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

Mark any serial ports that aren't registered by the board files as disabled
in the device-tree files.

In practice, none of the now-disabled ports ended up succeeding device
probing because of the missing clock-frequency property. However,
explicitly marking the devices disabled has the advantage of squashing
the dev_warn() the failed probe causes, and documenting that we intend
the port not to be used, rather than accidentally left out the property.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

With board files, all I2C busses run at 400KHz. Fix the device-tree
to be consistent with this. It's possible this is incorrect, but at
least it keeps the board files and device-tree consistent.

Also, disable any I2C controllers that the board files don't register,
also for consistency.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

The command-lines present in the existing /chosen node are not necessarily
correct for all users. Ideally, we should simply use the command-line
supplied by the boot-loader.

In fact, using the boot-loader's cmdline is quite easy; either the
bootloader fully supports DT, in which case it can modify the DT passed
to the kernel to include its command-line, or CONFIG_APPENDED_DTB can
be used in conjunction with CONFIG_ARM_ATAG_DTB_COMPAT, and the kernel
will substitute the bootloader's command-line into the DT.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

There are no drivers in the kernel at present which can make use of the
memory reserved by /memreserve/, so there is no point reserving it. Remove
/memreserve/ to allow the user more memory. It's also unclear whether any
future driver would actually require /memreserve/, or allocate memory
through some other mechanism.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

* Add device-tree file for TrimSlice
* Add that to the list of .dts files to build
* Update board-dt.c to recognize TrimSlice board name

v2: Makefile: Add board-trimslice-pinmux.c to obj-$(CONFIG_MACH_TEGRA_DT).
v3: Makefile: Use brackets not braces around var names
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>