arm64: dts: allwinner: add 'chassis-type' property

A new 'chassis-type' root node property has recently been approved for
the device-tree specification, in order to provide a simple way for
userspace to detect the device form factor and adjust their behavior
accordingly.

This patch fills in this property for end-user devices (such as laptops,
smartphones and tablets) based on Allwinner ARM64 processors.

Signed-off-by: Arnaud Ferraris <arnaud.ferraris@collabora.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20211016102025.23346-2-arnaud.ferraris@collabora.com

arm64: dts: allwinner: pinetab: Add HDMI support

This patch enables HDMI display on PINE64 PineTab.

The PineTab has a HDMI Type C (mini) port.

Signed-off-by: Dang Huynh <danct12@disroot.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20210914193732.3047668-1-danct12@disroot.org

arm64: dts: allwinner: pinetab: Change regulator node name to avoid warning

The fixed regulator clock name has a unit address, but no reg property,
which generates a warning in DTC. Change its name to remove its useless
unit address.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20210901091852.479202-51-maxime@cerno.tech

arm64: dts: allwinner: Use the new r_intc binding

The binding of R_INTC was updated to allow specifying interrupts other
than the external NMI, since routing those interrupts through the R_INTC
driver allows using them for wakeup.

Update the device trees to use the new binding.

Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>

dt-bindings: arm: sunxi: document orig PineTab DT as sample

As the original PineTab DT (which uses sun50i-a64-pinetab name) is only
for development samples, document this.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20201224024138.19422-1-icenowy@aosc.io

arm64: dts: allwinner: pinetab: Drop unnecessary address/size-cells information

make dtbs_check warm about unknown address/size-cells property in the
pinetab device-tree.

This is because these information are not necessary.

Drop them.

Signed-off-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20201011211514.155266-1-peron.clem@gmail.com

arm64: dts: allwinner: a64: Update codec widget names

The sun8i-codec driver introduced a new set of DAPM widgets that more
accurately describe the hardware topology. Update the various device
trees to use the new widget names.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20200726012557.38282-7-samuel@sholland.org

arm64: dts: allwinner: a64: pinetab: Fix cpvdd supply name

An older version of the analog codec binding referenced the headphone
amplifier binding as "hpvcc". However, by the time it was merged in
commit 21dd30200e3d ("ASoC: dt-bindings: sun50i-codec-analog: Add
headphone amp regulator supply"), the regulator reference was renamed to
"cpvdd". This board's device tree still uses the old name, which fails
to work at runtime, and which causes a warning from `make dtbs_check`.
Resolve both by fixing the name.

Fixes: 674ef1d0a7b2 ("arm64: dts: allwinner: a64: add support for PineTab")
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>

arm64: dts: allwinner: a64: add support for PineTab

PineTab is a 10.1" tablet by Pine64 with Allwinner A64 inside.

It includes the following peripherals:

USB:
- A microUSB Type-B port connected to the OTG-capable USB PHY of
Allwinner A64. The ID pin is connected to a GPIO of the A64 SoC, and the
Vbus is connected to the Vbus of AXP803 PMIC. These enables OTG
functionality on this port.
- A USB Type-A port is connected to the internal hub attached to the
non-OTG USB PHY of Allwinner A64.
- There are reserved pins for an external keyboard connected to the
internal hub.

Power:
- The microUSB port has its Vbus connected to AXP803, mentioned above.
- A DC jack (of a strange size, 2.5mm outer diameter) is connected to
the ACIN of AXP803.
- A Li-Polymer battery is connected to the battery pins of AXP803.

Storage:
- An tradition Pine64 eMMC slot is on the board, mounted with an eMMC
module by factory.
- An external microSD slot is hidden under a protect case.

Display:
- A MIPI-DSI LCD panel (800x1280) is connected to the DSI port of A64 SoC.
- A mini HDMI port.

Input:
- A touch panel attached to a Goodix GT9271 touch controller.
- Volume keys connected to the LRADC of the A64 SoC.

Camera:
- An OV5640 CMOS camera is at rear, connected to the CSI bus of A64 SoC.
- A GC2145 CMOS camera is at front, shares the same CSI bus with OV5640.

Audio:
- A headphone jack is conencted to the SoC's internal codec.
- A speaker connected is to the Line Out port of SoC's internal codec, via
an amplifier.

Misc:
- Debug UART is muxed with the headphone jack, with the switch next to
the microSD slot.
- A bosch BMA223 accelerometer is connected to the I2C bus of A64 SoC.
- Wi-Fi and Bluetooth are available via a RTL8723CS chip, similar to the
one in Pinebook.

This commit adds a basically usable device tree for it, implementing
most of the features mentioned above. HDMI is not supported now because
bad LCD-HDMI coexistence situation of mainline A64 display driver, the
front camera currently lacks a driver and a facility to share the bus
with the rear one, and the accelerometer currently lacks a DT binding.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>