[PATCH v4 0/3] Update cros-ec-spi for fingerprint devices

[Stephen Boyd <swboyd@chromium.org>]

This patch series introduces a DT binding for chromeos fingerprint
devices and then implements support to boot those processors during
driver probe if the BIOS hasn't done it already.

Changes from v3 (https://lore.kernel.org/r/20220318015451.2869388-1-swboyd@chromium.org):
 * Drop spi_device_id because it isn't used
 * Dropped struct members for gpios
 * Picked up tags

Changes from v2 (https://lore.kernel.org/r/20220317005814.2496302-1-swboyd@chromium.org):
 * Dropped cros-ec spi dt properties that aren't of use right now
 * Picked up tags

Changes from v1 (https://lore.kernel.org/r/20220314232214.4183078-1-swboyd@chromium.org):
 * Properly do the boot sequence
 * Add a message that we're booting and delaying a while
 * Fix typo in commit text
 * Change binding to not spell out reset-gpios and indicate that boot0
   is about asserting boot mode
 * Split device id to different patch as it's a different topic from
   booting

Stephen Boyd (3):
  dt-bindings: chrome: Add ChromeOS fingerprint binding
  platform/chrome: cros_ec_spi: Match cros-ec-fp compatible
  platform/chrome: cros_ec_spi: Boot fingerprint processor during probe

 .../bindings/chrome/google,cros-ec-fp.yaml    | 66 +++++++++++++++++++
 drivers/platform/chrome/cros_ec_spi.c         | 43 +++++++++++-
 2 files changed, 106 insertions(+), 3 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/chrome/google,cros-ec-fp.yaml

Cc: Rob Herring <robh+dt@kernel.org>
Cc: <devicetree@vger.kernel.org>
Cc: Guenter Roeck <groeck@chromium.org>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Craig Hesling <hesling@chromium.org>
Cc: Tom Hughes <tomhughes@chromium.org>
Cc: Alexandru M Stan <amstan@chromium.org>
Cc: Tzung-Bi Shih <tzungbi@kernel.org>
Cc: Matthias Kaehlcke <mka@chromium.org>

base-commit: ffb217a13a2eaf6d5bd974fc83036a53ca69f1e2
-- 
https://chromeos.dev