[PATCH v5 0/9] Congatec Board Controller: Add storage devices support
From: Thomas Richard (congatec GmbH)
Date: Tue Nov 03 2026 - 12:21:26 EST
In this v5, I re-ordered a bit the patches to fix I2C bus names first.
I also made an error message more user friendly.
Lee, this series conflicts with some other ongoing patches series:
- mfd: Assorted resource lifetime, teardown, and error-handling fixes [1]
- mfd: Constify mfd_cell arrays [2]
To make your life easier I rebased this series on top of them. Please let
me know if you want to proceed in an other way.
[1] https://lore.kernel.org/all/20261027093306.2812695-1-lee@xxxxxxxxxx/
[2] https://lore.kernel.org/all/20261030071137.100954-3-krzysztof.kozlowski@xxxxxxxxxxxxxxxx/
Best Regards,
Thomas
Signed-off-by: Thomas Richard (congatec GmbH) <thomas.richard@xxxxxxxxxxx>
---
Changes in v5:
- mfd: fix error message in case we fail to get session handle.
- fix I2C bus names earlier in the series.
- Link to v4: https://patch.msgid.link/20261002-cgbc-i2c-storage-devices-support-v4-0-eb42e0f1df59@xxxxxxxxxxx
Changes in v4:
- Fix struct cgbc_i2c_platform_data comment (kernel-doc warning)
- Move struct cgbc_i2c_platform_data from linux/platform_data/i2c-cgbc.h to
linux/mfd/cgbc.h
- Use MFD_CELL_NAME macros.
- Link to v3: https://patch.msgid.link/20260911-cgbc-i2c-storage-devices-support-v3-0-594b53fbc5ea@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
i2c: cgbc: Use real I2C bus names
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
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
drivers/i2c/busses/i2c-cgbc.c | 108 ++++++++++++------------
drivers/mfd/cgbc-core.c | 187 +++++++++++++++++++++++++++++++++++++++---
include/linux/mfd/cgbc.h | 16 ++++
3 files changed, 244 insertions(+), 67 deletions(-)
---
base-commit: d3dfdb6b429a5b99bfd47176bf07cad0956f14ed
change-id: 20260717-cgbc-i2c-storage-devices-support-b3ee7cea3320
prerequisite-message-id: 20261027093306.2812695-1-lee@xxxxxxxxxx
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prerequisite-patch-id: 699c068a32ac9d3171e7a494fb2ca5522045779a
prerequisite-message-id: 20261030140240.211786-3-krzysztof.kozlowski@xxxxxxxxxxxxxxxx
prerequisite-patch-id: f6cf975bf90acb029fa985ecd659b59076fdc0cd
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Best regards,
--
Best Regards,
Thomas Richard