dt-bindings: mailbox: tegra: Document Tegra264 HSP

Add the compatible string for the HSP block found on the Tegra264 SoC.
The HSP block in Tegra264 is not register compatible with the one in
Tegra194 or Tegra234 hence there is no fallback compatibility string.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>

dt-bindings: tegra186-hsp: add type for shared mailboxes

Tegra234 supports sending/receiving 32-bit and 128-bit data over
a shared mailbox. Based on the data size to be used, clients need
to specify the type of shared mailbox in the device tree.

Add a macro for 128-bit shared mailbox. Mailbox clients can use this
macro as a flag in device tree to enable 128-bit data support for a
shared mailbox.

Signed-off-by: Kartik <kkartik@nvidia.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>

dt-bindings: mailbox: tegra: Document Tegra234 HSP

Add the compatible string for the HSP block found on the Tegra234 SoC.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

dt-bindings: mailbox: tegra: Convert to json-schema

Convert the NVIDIA Tegra HSP bindings from the free-form text format to
json-schema.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>