[PATCH v2 0/3] i2c: spacemit: add reset support

Encrow Thorne
2025-12-19T07:42:33Z

Add reset support for the K1 I2C driver. A reset ensures that the
controller starts in a clean and known state.

Reset ensures that the I2C hardware is in a clean state. We cannot assume
that no program used I2C before the kernel booted.

Signed-off-by: Encrow Thorne <jyc0019@gmail.com>
---
Changes in v2:
- Replace reset property in dt-bindings.
- Use devm_reset_control_get_optional_exclusive_deasserted() instead.
- Rebase to v6.19-rc1.
- Link to v1: https://lore.kernel.org/r/20251119-i2c-k1_reset-support-v1-0-0e9e82bf9b65@gmail.com

---
Encrow Thorne (3):
dt-bindings: i2c: spacemit: add optional resets
i2c: k1: add reset support
riscv: dts: spacemit: add reset property

Documentation/devicetree/bindings/i2c/spacemit,k1-i2c.yaml | 3 +++
arch/riscv/boot/dts/spacemit/k1.dtsi | 8 ++++++++
drivers/i2c/busses/i2c-k1.c | 7 +++++++
3 files changed, 18 insertions(+)
---
base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8
change-id: 20251218-i2c-reset-a7be139213de

Best regards,
--
Encrow Thorne <jyc0019@gmail.com>