[PATCH v3 0/9] Congatec Board Controller: Add storage devices support

[Thomas Richard (congatec GmbH)]

For this v3, I deeply reworked the series.

I2C buses are now defined in the MFD driver, and all I2C bus parameters are
passed to the i2c-cgbc driver through platform data. The cell ID is no
longer used as the (BC) bus ID; the bus ID is now stored in platform data,
which allows switching the child devices to PLATFORM_DEVID_AUTO.

I also declared the I2C buses, as well as the devices attached to them, in
the MFD core. The MFD driver knows exactly which board it is running on.
This will be useful when adding support for other I2C buses, so they can be
limited based on the board. This also makes the i2c-cgbc driver more
generic.

Signed-off-by: Thomas Richard (congatec GmbH) <thomas.richard@xxxxxxxxxxx>
---
Changes in v3:
- rebased on v7.3-rc2
- use PLATFORM_DEVID_AUTO for child devices
- move I2C bus and I2C device definition in the MFD driver
- Link to v2: https://patch.msgid.link/20260811-cgbc-i2c-storage-devices-support-v2-0-3efa998e0ef5@xxxxxxxxxxx

Changes in v2:
- i2c: fix typo in CGBC BIOS EEPROM label.
- mfd: make cgbc_devs const
- Link to v1: https://patch.msgid.link/20260804-cgbc-i2c-storage-devices-support-v1-0-fed38510671c@xxxxxxxxxxx

To: Thomas Richard <thomas.richard@xxxxxxxxxxx>
To: Lee Jones <lee@xxxxxxxxxx>
To: Andi Shyti <andi.shyti@xxxxxxxxxx>
Cc: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxx>
Cc: Werner Gartner <Werner.Gartner@xxxxxxxxxxxx>
Cc: mfd@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-i2c@xxxxxxxxxxxxxxx

---
Thomas Richard (congatec GmbH) (9):
      mfd: cgbc: Fix use of negative error code as valid session handle
      mfd: cgbc: Add I2C platform data
      i2c: cgbc: Use plateform data to get bus ID and adapter name
      mfd: cgbc: Use PLATFORM_DEVID_AUTO for child device registration
      mfd: cgbc: Use real I2C bus names
      i2c: cgbc: Add support for fixed frequency buses
      mfd: cgbc: Add virtual I2C bus support
      mfd: cgbc: Add virtual storage devices on the virtual I2C bus
      i2c: cgbc: Register known I2C devices on the bus

 MAINTAINERS                            |   1 +
 drivers/i2c/busses/i2c-cgbc.c          | 109 ++++++++++---------
 drivers/mfd/cgbc-core.c                | 187 ++++++++++++++++++++++++++++++---
 include/linux/platform_data/i2c-cgbc.h |  28 +++++
 4 files changed, 258 insertions(+), 67 deletions(-)
---
base-commit: df2908090cda368b01ff43709f51890076c56157
change-id: 20260717-cgbc-i2c-storage-devices-support-b3ee7cea3320

Best regards,
--  
Thomas Richard (congatec GmbH) <thomas.richard@xxxxxxxxxxx>