Enable HDMI CEC on Nyan Chromebooks. It allows to control TV over HDMI.
Suggested-by: Thomas Graichen <thomas.graichen@gmail.com>
Tested-by: Thomas Graichen <thomas.graichen@gmail.com> # T124 Nyan Big
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

If an USB port is an OTG port, then we should add the usb-role-switch
property. Otherwise XUSB setup fails and therefore padctl is unable to
set up the ports. This leads to broken USB and PCIe ports. Add the
usb-role-switch properties to Tegra124 device-trees to fix the problem.

The error message shown without this patch is e.g:
usb2-0: usb-role-switch not found for otg mode

[digetx@gmail.com: improved commit message]

Tested-by: Thomas Graichen <thomas.graichen@gmail.com> # T124 Nyan Big
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Add dedicated device-tree for 1080p version of Nyan Big in order to
describe display panel properly. FHD panel doesn't support modes other
than 1080p, hence it's wrong to use incompatible lower resolution panel
in device-tree.
Tested-by: Thomas Graichen <thomas.graichen@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Add device-tree for Pegatron Chagall, which is a NVIDIA Tegra30-based
Android tablet.

Link: https://wiki.postmarketos.org/wiki/Pegatron_Chagall_(pegatron-chagall)Co-developed-by: Raffaele Tranquillini <raffaele.tranquillini@gmail.com>
Signed-off-by: Raffaele Tranquillini <raffaele.tranquillini@gmail.com>
Co-developed-by: Ion Agorria <ion@agorria.com>
Signed-off-by: Ion Agorria <ion@agorria.com>
Co-developed-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Signed-off-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[treding@nvidia.com: cosmetic fixups]
Signed-off-by: Thierry Reding <treding@nvidia.com>

Add device-tree for Tegra114-based ASUS Transformer Pad TF701T (K00C)
tablet.

Link: https://wiki.postmarketos.org/wiki/ASUS_Transformer_Pad_(TF701T)_(asus-tf701t)Signed-off-by: Anton Bambura <jenneron@protonmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[treding@nvidia.com: cosmetic fixups]
Signed-off-by: Thierry Reding <treding@nvidia.com>

Add device-tree for ASUS Transformer Infinity TF700T, which is a NVIDIA
Tegra30-based 2-in-1 detachable, originally running Android.

Link: https://wiki.postmarketos.org/wiki/Asus_Transformer_Pad_Infinity_TF700T_(asus-tf700t)Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com>
Tested-by: Jasper Korten <jja2000@gmail.com>
Co-developed-by: Ion Agorria <ion@agorria.com>
Signed-off-by: Ion Agorria <ion@agorria.com>
Co-developed-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Signed-off-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Co-developed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[treding@nvidia.com: cosmetic fixups]
Signed-off-by: Thierry Reding <treding@nvidia.com>

Add device-tree for ASUS Transformer Pad TF300TG, which is a NVIDIA
Tegra30-based 2-in-1 detachable, originally running Android. It's a
variant of the TF300T that has a 3G modem.

Link: https://wiki.postmarketos.org/wiki/ASUS_Transformer_Pad_(asus-tf300t)Co-developed-by: Ion Agorria <ion@agorria.com>
Signed-off-by: Ion Agorria <ion@agorria.com>
Co-developed-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Signed-off-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[treding@nvidia.com: cosmetic fixups]
Signed-off-by: Thierry Reding <treding@nvidia.com>

Add device-tree for ASUS Transformer Pad TF300T, which is a NVIDIA
Tegra30-based 2-in-1 detachable, originally running Android.

Link: https://wiki.postmarketos.org/wiki/ASUS_Transformer_Pad_(asus-tf300t)Tested-by: Ihor Didenko <tailormoon@rambler.ru>
Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com>
Co-developed-by: Ion Agorria <ion@agorria.com>
Signed-off-by: Ion Agorria <ion@agorria.com>
Co-developed-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Signed-off-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Co-developed-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[treding@nvidia.com: cosmetic fixups]
Signed-off-by: Thierry Reding <treding@nvidia.com>

Add device-tree for ASUS Transformer Prime TF201, which is a NVIDIA
Tegra30-based 2-in-1 detachable, orignally running Android.

Link: https://wiki.postmarketos.org/wiki/ASUS_Transformer_Prime_(asus-tf201)Co-developed-by: Ion Agorria <ion@agorria.com>
Signed-off-by: Ion Agorria <ion@agorria.com>
Co-developed-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Signed-off-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[treding@nvidia.com: cosmetic fixups]
Signed-off-by: Thierry Reding <treding@nvidia.com>

All Tegra30 ASUS tablets have a similar design pattern in terms of
hardware integration of LVDS display panels, like exactly the same GPIOs
are used for power and reset, etc. Add a common device-tree for LVDS
display panels of Tegra30 ASUS tablets to avoid replicating the
boilerplate panel description.

[digetx@gmail.com: factored out common part into separate patch and wrote commit message]
Co-developed-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Add common DTSI for Tegra30 ASUS Transformers. It will be used by multiple
device-trees of ASUS devices. The common part initially was born out of
the ASUS TF300T tablet's device-tree that was created by Michał Mirosław.
It was heavily reworked and improved by Svyatoslav Ryhel, Maxim Schwalm,
Ion Agorria et al.

[digetx@gmail.com: factored out common part into separate patch and wrote commit message]
Co-developed-by: Ion Agorria <ion@agorria.com>
Signed-off-by: Ion Agorria <ion@agorria.com>
Co-developed-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Signed-off-by: Maxim Schwalm <maxim.schwalm@gmail.com>
Co-developed-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[treding@nvidia.com: cosmetic fixups]
Signed-off-by: Thierry Reding <treding@nvidia.com>

Add device-tree for Tegra20-based ASUS Transformer EeePad TF101.

Link: https://wiki.postmarketos.org/wiki/ASUS_Eee_Pad_Transformer_(asus-tf101)Co-developed-by: David Heidelberg <david@ixit.cz>
Signed-off-by: David Heidelberg <david@ixit.cz>
Co-developed-by: Svyatoslav Ryhel <clamor95@gmail.com>
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Co-developed-by: Antoni Aloy Torrens <aaloytorrens@gmail.com>
Signed-off-by: Antoni Aloy Torrens <aaloytorrens@gmail.com>
Signed-off-by: Nikola Milosavljevic <mnidza@outlook.com>
Co-developed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
[treding@nvidia.com: cosmetic fixups]
Signed-off-by: Thierry Reding <treding@nvidia.com>

Move the default state pinmux definition into the pinmux node. There's
no need for the indirection via the phandle.

Note that the phandle indirection is kept for the EMC operating
performance point tables because they reference nodes that are defined
in an external file.
Signed-off-by: Thierry Reding <treding@nvidia.com>

Use the correct "reset-gpios" property for the I2C mux reset GPIO
reference instead of the deprecated "reset-gpio" property.
Signed-off-by: Thierry Reding <treding@nvidia.com>

The SLINK controller found on Tegra30 is not compatible with its
predecessor found on Tegra20. Drop the fallback compatible string.
Signed-off-by: Thierry Reding <treding@nvidia.com>

The Ouya board specifies the #reset-cells property for the GPIO
controller. Since the GPIO controller doesn't provide reset controls
this is not needed, so they can be dropped.
Signed-off-by: Thierry Reding <treding@nvidia.com>

The clock-frequency property was never used and is deprecated now.
Remove it from Nexus 7 device-tree.
Signed-off-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Thierry Reding <treding@nvidia.com>

The +V1.2_VDD_CORE regulator on Apalis and Colibri boards uses the
unsupported ti,vsel{0,1}-state-low properties. It turns out that these
are in fact the default and can be overridden by ti,vsel{0,1}-state-high
properties if needed. Drop them since they are not needed.
Signed-off-by: Thierry Reding <treding@nvidia.com>

The correct vendor prefix for Invensense is "invensense," rather than
"invn,".
Signed-off-by: Thierry Reding <treding@nvidia.com>

The Medcom Wide and PAZ00 boards don't specify the power supply for the
backlight, which means that the Linux driver will provide a dummy one.
Wire up an explicit dummy to also make the DT schema validation succeed.

Unfortunately I don't have access to the schematics for the Medcom Wide,
so I don't know if a more accurate description is possible.

The AC100 (PAZ00) schematics from here:

	https://www.s-manuals.com/pdf/motherboard/compal/compal_la-6352p_r1.0a_schematics.pdf

aren't entirely clear which one of the supplies powers backlight, but
the panel supply is probably close enough.

Based on work by David Heidelberg <david@ixit.cz>.
Signed-off-by: Thierry Reding <treding@nvidia.com>

The PHY reset GPIO references belong in the USB PHY nodes, where they
already exist. There is no need to keep them in the USB controller's
device tree node as well.
Signed-off-by: Thierry Reding <treding@nvidia.com>

The device tree node for the built-in ASIX Ethernet device on Colibri
boards needs a compatible string in order to pass DT schema validation.
Add the USB VID,PID compatible string as required by the DT schema for
USB devices.
Reviewed-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

The "pwm-" prefix currently matches the DT schema for PWM controllers
and throws an error in that case. This is something that should be fixed
in the PWM DT schema, but in this case we can also preempt any such
conflict by naming the nodes after the pins like we do for many others
of these nodes.
Signed-off-by: Thierry Reding <treding@nvidia.com>

Make the order of the clocks and clock-names properties match the order
in the device tree bindings. This isn't strictly necessary from a point
of view of the operating system because matching will be done based on
the clock-names, but it makes it easier to validate the device trees
against the DT schema.
Signed-off-by: Thierry Reding <treding@nvidia.com>

The CML1 and PLL_E clocks are never explicitly used by the AHCI
controller found on Tegra124, so drop them from the corresponding device
tree node.
Signed-off-by: Thierry Reding <treding@nvidia.com>

The I2C controller found on Tegra124 is not fully compatible with the
Tegra114 version, so drop the fallback compatible string from the list.
Signed-off-by: Thierry Reding <treding@nvidia.com>

OPP table name now should start with "opp-table" and OPP entries
shouldn't contain commas and @ signs in accordance to the new schema
requirement. Reorganize CPU and EMC OPP table device-tree nodes.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

The DT schema requires that nodes representing thermal zones include a
"-thermal" suffix in their name.
Signed-off-by: Thierry Reding <treding@nvidia.com>

When the Tegra High-Speed UART is used instead of the regular UART, the
reg-shift property is implied from the compatible string and should not
be explicitly listed.
Signed-off-by: Thierry Reding <treding@nvidia.com>

In order to be able to pass DT schema validation, change the GPU nodes'
unit-address to the standard notation. Previously this was using a "0,"
prefix that originated from a time when the top-level device tree node
contained #address-cells = <2>.

Note that this technically breaks backwards-compatibility with certain
older versions of the U-Boot bootloader because early versions used a
hard-coded DT path lookup to find the GPU node and perform some fixups
on it. However, this was changed to a compatible string based lookup in
April 2016, so it's reasonable to expect people to update U-Boot on the
systems that they want to use this updated kernel DTB with.
Signed-off-by: Thierry Reding <treding@nvidia.com>

GPIO hog nodes must have a "hog-" prefix or "-hog" suffix according to
the DT schema. Rename all such nodes to allow validation to pass.
Signed-off-by: Thierry Reding <treding@nvidia.com>

The Tegra memory controller provides reset controls for hotflush reset,
so the #reset-cells property must be specified.
Signed-off-by: Thierry Reding <treding@nvidia.com>

The TKE (time-keeping engine) found on Tegra114 and later is no longer
backwards compatible with the version found on Tegra20, so update the
compatible string list accordingly.

Note that while the hardware block is strictly backwards-compatible, an
architectural timer exists on those newer SoCs that is more reliable, so
that should always be preferred.
Signed-off-by: Thierry Reding <treding@nvidia.com>

Regulators defined at the top level in device tree are no longer part of
a simple bus and therefore don't have a reg property. Nodes without a
reg property shouldn't have a unit-address either, so drop the unit
address from the node names. To ensure nodes aren't duplicated (in which
case they would end up merged in the final DTB), append the name of the
regulator to the node name.

[treding@nvidia.com: factored out patch and wrote commit message]
Signed-off-by: David Heidelberg <david@ixit.cz>
Co-developed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Clocks defined at the top level in device tree are no longer part of a
simple bus and therefore don't have a reg property. Nodes without a reg
property shouldn't have a unit-address either, so drop the unit address
from the node names. To ensure nodes aren't duplicated (in which case
they would end up merged in the final DTB), append the name of the clock
to the node name.

[treding@nvidia.com: factored out patch and wrote commit message]
Signed-off-by: David Heidelberg <david@ixit.cz>
Co-developed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

SPI flash chip nodes should be named "flash" instead of "spi-flash".
Signed-off-by: Thierry Reding <treding@nvidia.com>

The PMIC found on Dalmore, TN7 and Roth is a TPS65913, so add the
specific compatible string in addition to the generic Palmas series
compatible string.
Signed-off-by: Thierry Reding <treding@nvidia.com>

The external memory controller should be sorted after the memory
controller to keep the ordering by unit-address intact.
Signed-off-by: Thierry Reding <treding@nvidia.com>

Add Kconfig support for -Wimplicit-fallthrough for both GCC and Clang.

The compiler option is under configuration CC_IMPLICIT_FALLTHROUGH,
which is enabled by default.

Special thanks to Nathan Chancellor who fixed the Clang bug[1][2]. This
bugfix only appears in Clang 14.0.0, so older versions still contain
the bug and -Wimplicit-fallthrough won't be enabled for them, for now.

This concludes a long journey and now we are finally getting rid
of the unintentional fallthrough bug-class in the kernel, entirely. :)

Link: https://github.com/llvm/llvm-project/commit/9ed4a94d6451046a51ef393cd62f00710820a7e8 [1]
Link: https://bugs.llvm.org/show_bug.cgi?id=51094 [2]
Link: https://github.com/KSPP/linux/issues/115
Link: https://github.com/ClangBuiltLinux/linux/issues/236Co-developed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Co-developed-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>