Replace calls to bus_generic_attach with bus_attach_children

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

newbus: globally replace device_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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bcm2835/spi: Support SPI_FLAG_KEEP_CS

Summary:
3c08673438 brought in SPI_FLAG_KEEP_CS to keep the SPI chip select held
post-transfer completion. Add this support to bcm2835 SPI for SPI
devices that

bcm2835/spi: Support SPI_FLAG_KEEP_CS

Summary:
3c08673438 brought in SPI_FLAG_KEEP_CS to keep the SPI chip select held
post-transfer completion. Add this support to bcm2835 SPI for SPI
devices that need it. As part of this, the owner thread needed carried
through so that no other thread can take over the SPI bus until the
owner releases the chip select.

Reviewed by: manu
Sponsored by: Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D42599

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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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD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 broadcom: Remove unused devclass arguments to DRIVER_MODULE.

Merge ^/head r358269 through r358399.

Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)

r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly mark

Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)

r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked).
Use it in preparation for a general review of all nodes.

This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.

Mark all obvious cases as MPSAFE. All entries that haven't been marked
as MPSAFE before are by default marked as NEEDGIANT

Approved by: kib (mentor, blanket)
Commented by: kib, gallatin, melifaro
Differential Revision: https://reviews.freebsd.org/D23718

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Retrieve the bus clock speed and mode (polarity/phase) from the child device
and set up the hardware accordingly on each transfer. This replaces the old
configuration done via sysctl, and allows bot

Retrieve the bus clock speed and mode (polarity/phase) from the child device
and set up the hardware accordingly on each transfer. This replaces the old
configuration done via sysctl, and allows both fdt configuration data and
userland control via the spigen device to work.

Submitted by: Bob Frazier
Differential Revision: https://reviews.freebsd.org/D15031

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[rpi] Add fdt_pinctrl(4) support to Raspberry Pi GPIO driver

On Raspberry Pi platform GPIO controller also responsible for pins
multiplexing. Pi code predates proper FDT support in FreeBSD so a
lot

[rpi] Add fdt_pinctrl(4) support to Raspberry Pi GPIO driver

On Raspberry Pi platform GPIO controller also responsible for pins
multiplexing. Pi code predates proper FDT support in FreeBSD so a
lot of pinmux info is hardcoded. This patch:

- Implements pinctl methods in bcm2835_gpio
- Converts all devices with ad-hoc pinmux info to proper pin control
mechanisms and adds pinmux info in FreeBSD's custom dts files.
- Adds fdt_pinctrl option to RPI2 and RPI-B kernels
- Adds SPI pinmux config to FreeBSD's customization of GNU DTS.

Reviewed by: imp, manu
Differential Revision: https://reviews.freebsd.org/D14104

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sys/arm: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error

sys/arm: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

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ofw_spi: Parse property for the SPI mode and CS polarity.
As cs is stored in a uint32_t, use the last bit to store the
active high flag as it's unlikely that we will have that much CS.

Reviewed by:

ofw_spi: Parse property for the SPI mode and CS polarity.
As cs is stored in a uint32_t, use the last bit to store the
active high flag as it's unlikely that we will have that much CS.

Reviewed by: loos
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D8614

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Merge ^/head r309817 through r310168.

CS ivar is uint32_t, not int.

MFC after: 3 days

Merge ^/head r308491 through r308841.

Stop including fdt_common.h from the arm code when it's unneeded.

Sponsored by: ABT Systems Ltd

Merge ^/head r306906 through r307382.

Add compatible strings used in upstream dts files

Merge ^/head r306412 through r306905.

ARM: Remove unused includes.

MFC after: 1 week

Catch up with HEAD (r280229-r284686).

Merge from head

Merged ^/head r283871 through r284187.

Add a missing wakeup when releasing ownership of the SPI hardware.

Also, validate the chipselect parameter before grabbing ownership of the
hardware, and report timeout errors after releasing it.

P

Add a missing wakeup when releasing ownership of the SPI hardware.

Also, validate the chipselect parameter before grabbing ownership of the
hardware, and report timeout errors after releasing it.

PR: 200584

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