Revert r330897:

This was intended to be a non-functional change. It wasn't. The commit
message was thus wrong. In addition it broke arm, and merged crypto
related code.

Revert with prejudice.

This revert skips files touched in r316370 since that commit was since
MFCed. This revert also skips files that require $FreeBSD$ property
changes.

Thank you to those who helped me get out of this mess including but not
limited to gonzo, kevans, rgrimes.

Requested by: gjb (re)

Partial merge of the SPDX changes

These changes are incomplete but are making it difficult
to determine what other changes can/should be merged.

No objections from: pfg

MFC r308640:

Use the correct OF_getencprop over OF_getprop + fdt32_to_cpu to read
integer data from the device tree.

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Somewhat improve HDMI event API

- Pass device_t for HDMI framer as an argument for event hook
- Use #define for event values, instead of opaque (and unused) 0

Move all HDMI-related stuff to hdmi_if.m, hdmi.h is not required

If there is panel info in DTB do not wait for HDMI event and setup
framebuffer immediately

Add HDMI support to Beaglebone Black:

- Add driver for TDA19988 HDMI framer
- Add simple interface to communicate with HDMI sink: read EDID and set videomode
- Add event-based API to notify LCD controller when HDMI sink is available
- Add HDMI framer node and add refernce to it to lcdc node. This part of
DTS tree is custom and does not match Linux DTS because Linux uses
combination of pseudo-node in DTS and hardcoded driver information
that does not map to our model.

Rename fdt_find_child to ofw_bus_find_child. There is nothing FDT-specific
in this function.

Suggested by: andrew@

Switch TI platform support code from using FreeBSD's custom-baked DTS
files to vendor-provided ones. It should make easier to adopt platform
code to new revisions of hardware and to use DTS overlays for various
Beaglebone extensions (shields/capes).

Original dts filenames were not changed, they're now wrappers over dts
files provided by TI. So make sure you update .dtb files on your
devices as part of kernel update

GPIO addressing was changed: instead of one global /dev/gpioc0 there
are per-bank instances of /dev/gpiocX. Each bank has 32 pins so for
instance pin 121 on /dev/gpioc0 in old addressing scheme is now pin 25
on /dev/gpioc3

On Pandaboard serial console devices was changed from /dev/ttyu0 to
/dev/ttyu2 so you'll have to update /etc/ttys to get login prompt
on serial port in multiuser mode. Single user mode serial console
should work as-is

Differential Revision: https://reviews.freebsd.org/D2146
Reviewed by: rpaulo, ian, Michal Meloun, Svatopluk Kraus

Add vt(4) support to AM335x LCDC driver

After interrupt read value from register to make sure it reached hardware. This
should fix "Spurious inteerupt" message

Suggested by ian@

Write ACK for all kinds of LCDC interrupts

Properly clear IRQ status in order to fix "Spurious IRQ" message from AINT.

This register is not documented in TRM but that's what linux driver does

Fix programming timing parameters to LCDC. Actual value used for HBP, HFP, HSW, VSW
is register's programmed value + 1.

Remove extra semicolons.

Follow r261352 by updating all drivers which are children of simplebus
to check the status property in their probe routines.

Simplebus used to only instantiate its children whose status="okay"
but that was improper behavior, fixed in r261352. Now that it doesn't
check anymore and probes all its children; the children all have to
do the check because really only the children know how to properly
interpret their status property strings.

Right now all existing drivers only understand "okay" versus something-
that's-not-okay, so they all use the new ofw_bus_status_okay() helper.

- Request non-cached memory for framebuffer
- Properly probe/initialize syscons

AM335x LCD controller driver with syscons support

Limitations:
- Raster mode only
- 24 and 32 bpp only