MFC r343828:

Adapt FreeBSD specific DT stub for Jetson TK1 board to be consistent with
update of devicetree to 4.19 in r340337. Our build system doesn't provide
dependencies for included DTS

MFC r343828:

Adapt FreeBSD specific DT stub for Jetson TK1 board to be consistent with
update of devicetree to 4.19 in r340337. Our build system doesn't provide
dependencies for included DTS files, so nobody noticed this issue for long
time.

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MFC r346334, r346787-r346789, r347017

r346334:
arm: allwinner: Fix audio for Allwinner H3/H5

Due to three conditions the codec driver for Allwinner A10/A20 and H3/H5 did not work properly here:

MFC r346334, r346787-r346789, r347017

r346334:
arm: allwinner: Fix audio for Allwinner H3/H5

Due to three conditions the codec driver for Allwinner A10/A20 and H3/H5 did not work properly here:

Wrong bit position for the analog audio reset
Hardware Reset of codec was not de-asserted correctly
Linux DTS file did not contain the address of the analog register the way as the driver was expecting it.

This patch proposes fixes for those three parts.

Submitted by: [email protected] (Manuel Stühn)
Differential Revision: https://reviews.freebsd.org/D19910

r346787:
arm64: allwinner: Add compatible strings for clock devices used on both Allwinner H3 and H5

Allwinner H3 and H5 share many internal components, that's why they can
use the same drivers.
This patch adds the compatible strings to enable clock drivers
probing on Allwinner NanoPI NEO2 device.

Tested on: NanoPi NEO2 (by submitter), OrangePi PC2 (by manu)
Submitted by: Manuel Stühn ([email protected])
Differential Revision: https://reviews.freebsd.org/D20069

r346788:
arm64: allwinner: ccu_de2: Remove H5 compatible

We don't have the display engine driver commited in FreeBSD yet so it is
useless to expose the clocks yet (and also it have not been tested on H5).

Reported by: Manuel Stühn ([email protected])
PR: 237571

r346789:
arm: allwinner: a10: Correct pin functions

PB20 and PB21 alternate function 1 is i2c2 not i2c1

Reported by: Horiki Mori ([email protected])
PR: 237401

r347017:
arm64: Add support for NanoPI NEO2

Add overlay files and activate devicetree file for NanoPi NEO2 featuring
Allwinner H5 ARM64 core.
To enable sound, dma and codec drivers are enabled for build.

Submitted by: Manuel Stühn ([email protected])
Differential Revision: https://reviews.freebsd.org/D20129

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MFC r340987, r340989, r341254, r341269, r341333

r340987:
arm64: Add evdev support to GENERIC

r340989:
regulator_fixed: Do not disable fixed regulator at probe

If the regulator is unused it will be

MFC r340987, r340989, r341254, r341269, r341333

r340987:
arm64: Add evdev support to GENERIC

r340989:
regulator_fixed: Do not disable fixed regulator at probe

If the regulator is unused it will be disabled by the regulator_shutdown sysinit.

Tested on pinebook where the backlight is controlled by a fixed-regulator.
The regulator doesn't have a regulator-boot-on param (I'm gonna upstream this) and so we disable it at probe.
We later enable it but this cause the screen to go black.
Linux doesn't disable regulator at boot (at least for fixed-regulator) so better match this to have the same UX.

Differential Revision: https://reviews.freebsd.org/D17978

r341254:
extres: clk: Fix clk_set_assigned

ofw_bus_parse_xref_list_get_length doesn't returns the number of elements, fix this.
While here when setting the clock to the assigned freqeuncy, allow the clock
driver to round down or up the frequency as sometimes the exact frequency cannot
be obtain.

r341269:
release: arm64: Add opp dtbo to PINE* boards

r341333:
arm64: allwinner: Add 792Mhz frequency to sun50i-a64-opp

This is the frequency of the cpu on the Pinebook so add it to make
cpufreq find the current setting.
Note that this dtbo on the Pinebook doesn't work right now as u-boot
dtb doesn't have symbols and so it fails to apply. Linux 4.20 have
the dts and will be imported once taggued.

X-MFC with: r341268

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MFC r341268, r342003-r342007, r342087-r342088, r342091

r341268 by manu:
arm64: allwinner: Add a dtbo to have cpu operating points

This enables cpufreq on A64 boards.

r342003 by manu:
Add a pwm sub

MFC r341268, r342003-r342007, r342087-r342088, r342091

r341268 by manu:
arm64: allwinner: Add a dtbo to have cpu operating points

This enables cpufreq on A64 boards.

r342003 by manu:
Add a pwm subsystem so we can configure pwm controller from kernel and userland.

The pwm subsystem consist of API for PWM controllers, pwmbus to register them
and a pwm(8) utility to talk to them from userland.

Reviewed by: oshgobo (capsicum), bcr (manpage), 0mp (manpage)
Differential Revision: https://reviews.freebsd.org/D17938

r342004 by manu:
arm64: allwinner: Add pwm driver

Add a pwm driver for Allwinner PWM
Add pwm and aw_pwm to the GENERIC kernel

r342005 by manu:
arm64: allwinner: Add DTSO for pwm and r_pwm

Those are both dtso (overlays) for the two pwm controllers found on the A64.

r342006 by manu:
arm64: allwinner: Fix pwm dtso

Double patched files ended up in the tree

Reported by: kevans

r342007 by manu:
pwm: Fix some arches by using %ju and casting to uintmax_t

Reported by: ci.freebsd.org

r342087 by manu:
pwm: Convert period and duty to unsigned int

We don't need a 64 bits value to store nanoseconds

Discused with: ian, jhibbits

r342088 by manu:
pwm(8): Add percentage value support for duty cycle

r342091 by manu:
allwinner: aw_pwm: Read value at attach

The booloaded might have configured the pwm controller so read the values.

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