linux-kernel - [PATCH v2 0/2] soc: ti: wkup_m3_ipc: support i2c voltage scaling

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Message-Id: <20220426193253.663582-1-dfustini@baylibre.com>
Date:   Tue, 26 Apr 2022 12:32:51 -0700
From:   Drew Fustini <dfustini@...libre.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Nishanth Menon <nm@...com>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Dave Gerlach <d-gerlach@...com>,
        Tony Lindgren <tony@...mide.com>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Drew Fustini <dfustini@...libre.com>
Subject: [PATCH v2 0/2] soc: ti: wkup_m3_ipc: support i2c voltage scaling

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(-)

-- 
2.32.0