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Message-ID: <20220711120122.25804-1-fabrice.gasnier@foss.st.com>
Date: Mon, 11 Jul 2022 14:01:18 +0200
From: Fabrice Gasnier <fabrice.gasnier@...s.st.com>
To: <krzysztof.kozlowski+dt@...aro.org>, <robh+dt@...nel.org>,
<heikki.krogerus@...ux.intel.com>, <gregkh@...uxfoundation.org>
CC: <christophe.jaillet@...adoo.fr>, <devicetree@...r.kernel.org>,
<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-stm32@...md-mailman.stormreply.com>,
<amelie.delaunay@...s.st.com>, <alexandre.torgue@...s.st.com>,
<fabrice.gasnier@...s.st.com>
Subject: [PATCH v2 0/4] usb: typec: ucsi: add support for stm32g0
STM32G0 provides an integrated USB Type-C and power delivery interface [1].
It can be programmed with a firmware [2] to act as a PPM. Currently it
implements UCSI protocol over I2C interface. A GPIO is used as an interrupt
line.
This series adds a driver to support it, including:
- dt-bindings documentation
- optional STM32G0 firmware control and update, over a secondary I2C address
- power management
[1] https://wiki.st.com/stm32mcu/wiki/Introduction_to_USB_Power_Delivery_with_STM32
[2] https://github.com/STMicroelectronics/x-cube-ucsi
Changes in v2:
- Krzysztof's review comments on dt-bindings: update commit message, use ports,
use unevaluatedProperties: false for usb-connector schema, define maxItems
for power-domains, adopt generic node names, remove quotes.
- Christophe's comments on driver:
use kmalloc instead of kzalloc
Use-after-free of buf: directly print the offset
Fabrice Gasnier (4):
dt-bindings: usb: typec: add bindings for stm32g0 controller
usb: typec: ucsi: stm32g0: add support for stm32g0 i2c controller
usb: typec: ucsi: stm32g0: add bootloader support
usb: typec: ucsi: stm32g0: add support for power management
.../bindings/usb/st,typec-stm32g0.yaml | 90 ++
drivers/usb/typec/ucsi/Kconfig | 10 +
drivers/usb/typec/ucsi/Makefile | 1 +
drivers/usb/typec/ucsi/ucsi_stm32g0.c | 777 ++++++++++++++++++
4 files changed, 878 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/st,typec-stm32g0.yaml
create mode 100644 drivers/usb/typec/ucsi/ucsi_stm32g0.c
--
2.25.1
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