From: Encrow Thorne <jyc0019@gmail.com>
To: Troy Mitchell <troy.mitchell@linux.spacemit.com>,
Andi Shyti <andi.shyti@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Yixun Lan <dlan@gentoo.org>,
Philipp Zabel <p.zabel@pengutronix.de>,
Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>
Cc: Troy Mitchell <troymitchell988@gmail.com>,
Guodong Xu <guodong@riscstar.com>,
linux-i2c@vger.kernel.org, devicetree@vger.kernel.org,
linux-riscv@lists.infradead.org, spacemit@lists.linux.dev,
linux-kernel@vger.kernel.org, Encrow Thorne <jyc0019@gmail.com>
Subject: [PATCH v2 0/3] i2c: spacemit: add reset support
Date: Fri, 19 Dec 2025 15:42:19 +0800 [thread overview]
Message-ID: <20251219-i2c-reset-v2-0-ad201a602e74@gmail.com> (raw)
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>
next reply other threads:[~2025-12-19 7:42 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-19 7:42 Encrow Thorne [this message]
2025-12-19 7:42 ` [PATCH v2 1/3] dt-bindings: i2c: spacemit: add optional resets Encrow Thorne
2025-12-19 8:03 ` Krzysztof Kozlowski
2025-12-26 3:25 ` Troy Mitchell
2025-12-19 7:42 ` [PATCH v2 2/3] i2c: k1: add reset support Encrow Thorne
2025-12-25 21:01 ` Andi Shyti
2025-12-25 23:38 ` Guodong Xu
2025-12-27 19:26 ` Andi Shyti
2025-12-28 0:42 ` Guodong Xu
2025-12-30 14:11 ` Troy Mitchell
2025-12-30 14:14 ` Troy Mitchell
2025-12-26 3:24 ` Troy Mitchell
2025-12-19 7:42 ` [PATCH v2 3/3] riscv: dts: spacemit: add reset property Encrow Thorne
2025-12-19 8:03 ` [PATCH v2 0/3] i2c: spacemit: add reset support Krzysztof Kozlowski
2025-12-27 23:53 ` Guodong Xu
2025-12-30 13:56 ` Encrow Thorne
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