Replace calls to bus_generic_attach with bus_attach_children

Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D47675

Check for errors when detaching children first, not last

These detach routines in these drivers all ended with 'return
(bus_generic_detach())' meaning that if any child device failed to
detach, the

Check for errors when detaching children first, not last

These detach routines in these drivers all ended with 'return
(bus_generic_detach())' meaning that if any child device failed to
detach, the parent driver was left in a mostly destroyed state, but
still marked attached. Instead, bus drivers should detach child
drivers first and return errors before destroying driver state in the
parent.

Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D47387

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newbus: replace -1 in BUS_ADD_CHILD(...-1) with DEVICE_UNIT_ANY

Sponsored by: Netflix

sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remov

sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

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sys: Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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arm/arm64 nvidia: Remove unused devclass arguments to DRIVER_MODULE.

tegra: Improve the detection of the secondary function (RTC) of the MAX77620.

Use the new ofw_iicbus_set_devinfo() method to implant an OFW compatibility
string for a manually created RTC sub-device

tegra: Improve the detection of the secondary function (RTC) of the MAX77620.

Use the new ofw_iicbus_set_devinfo() method to implant an OFW compatibility
string for a manually created RTC sub-device.

MFC after: 4 weeks
Reported by: archimedes.gaviola_at_gmail.com
bscott_at_bunyatech.com.au

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ARM64: Port FreeBSD to Nvidia Jetson TX1 and Nano.

Add support for the Tergra210 SoC and its companion PMIC MAX77620.