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[v2,0/2] soc: ti: wkup_m3_ipc: support i2c voltage scaling

Message ID 20220426193253.663582-1-dfustini@baylibre.com (mailing list archive)
Headers show
Series soc: ti: wkup_m3_ipc: support i2c voltage scaling | expand

Message

Drew Fustini April 26, 2022, 7:32 p.m. UTC 
Allow loading of a binary file containing i2c scaling sequences to be
provided to the Cortex-M3 firmware in order to properly scale voltage
rails on the PMIC during low power modes like DeepSleep0.

The 'firmware-name' property which contains the name of a binary file.
    
A prerequisite for this series is:
[PATCH v3 0/2] soc: ti: wkup_m3_ipc: Add support for IO Isolation
https://lore.kernel.org/linux-devicetree/20220414192722.2978837-1-dfustini@baylibre.com/

Changes from v1:
- change 'ti,scale-data-fw' to 'firmware-name'
- add 'firmware-name' property to the examples

Dave Gerlach (2):
  dt-bindings: wkup-m3-ipc: Add ti,scale-data-fw property
  soc: ti: wkup_m3_ipc: Add support for i2c voltage scaling

 .../bindings/soc/ti/wkup-m3-ipc.yaml          | 12 +++
 drivers/soc/ti/wkup_m3_ipc.c                  | 93 ++++++++++++++++++-
 include/linux/wkup_m3_ipc.h                   |  9 ++
 3 files changed, 113 insertions(+), 1 deletion(-)