[PATCH 0/4] Add vibration motor support to U-Boot

[Samuel Dionne-Riel]

This series of patch adds support for vibration motors (often called
vibrators) to U-Boot.

The support adds the necessary plumbing to support SPL usage of
vibration motors. This can be used to vibrate the device, like a phone,
as early as possible during the boot process.

A `vibrator` command allows scripts, or customised boot commands, to
vibrate the device. This can be used to provide feedback to the end-user
about failure state, or boot stage.

An example use case of the command is, in a customized boot command, to
signify that an error happend, by synchronizing red LED flashes with a
few short vibrations.

Samuel Dionne-Riel (4):
  drivers: Introduce vibrator uclass
  vibrator: Add vibrator_gpio driver
  cmd: Add vibrator command
  pinephone_defconfig: Add gpio vibrator support

 arch/sandbox/dts/test.dts          |  10 ++
 cmd/Kconfig                        |  10 ++
 cmd/Makefile                       |   1 +
 cmd/vibrator.c                     | 148 +++++++++++++++++++++++++++++
 configs/pinephone_defconfig        |   2 +
 configs/sandbox_defconfig          |   2 +
 drivers/Kconfig                    |   2 +
 drivers/Makefile                   |   1 +
 drivers/vibrator/Kconfig           |  37 ++++++++
 drivers/vibrator/Makefile          |   6 ++
 drivers/vibrator/vibrator-uclass.c |  62 ++++++++++++
 drivers/vibrator/vibrator_gpio.c   | 122 ++++++++++++++++++++++++
 include/dm/uclass-id.h             |   1 +
 include/vibrator.h                 |  87 +++++++++++++++++
 test/dm/Makefile                   |   1 +
 test/dm/vibrator.c                 |  97 +++++++++++++++++++
 16 files changed, 589 insertions(+)
 create mode 100644 cmd/vibrator.c
 create mode 100644 drivers/vibrator/Kconfig
 create mode 100644 drivers/vibrator/Makefile
 create mode 100644 drivers/vibrator/vibrator-uclass.c
 create mode 100644 drivers/vibrator/vibrator_gpio.c
 create mode 100644 include/vibrator.h
 create mode 100644 test/dm/vibrator.c

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2.34.0