linux-kernel - [PATCH 0/3] arm64: dts: qcom: fix GPIO lookup flags for i2c-gpio SDA and SCL pins

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Message-Id: <20250701-qcom-gpio-lookup-open-drain-v1-0-9678c4352f11@linaro.org>
Date: Tue, 01 Jul 2025 11:01:28 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 0/3] arm64: dts: qcom: fix GPIO lookup flags for i2c-gpio
 SDA and SCL pins

There are three platforms in the QCom DTS tree that are missing the
open-drain lookup flag in their DT nodes associated with the i2c-gpio
device whose driver enforces open-drain outputs. This causes the GPIO
core to emit warnings such as:

[    5.153550] gpio-528 (sda): enforced open drain please flag it properly in DT/ACPI DSDT/board file
[    5.166373] gpio-529 (scl): enforced open drain please flag it properly in DT/ACPI DSDT/board file

Silence the warnings by adding appriopriate flags.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
Bartosz Golaszewski (3):
      arm64: dts: qcom: qrb2210-rb1: fix GPIO lookup flags for i2c SDA and SCL
      arm64: dts: qcom: qrb4210-rb2: fix GPIO lookup flags for i2c SDA and SCL
      arm64: dts: qcom: sdm845-samsung-starqltechn: fix GPIO lookup flags for i2c SDA and SCL

 arch/arm64/boot/dts/qcom/qrb2210-rb1.dts                | 5 +++--
 arch/arm64/boot/dts/qcom/qrb4210-rb2.dts                | 5 +++--
 arch/arm64/boot/dts/qcom/sdm845-samsung-starqltechn.dts | 4 ++--
 3 files changed, 8 insertions(+), 6 deletions(-)
---
base-commit: 1343433ed38923a21425c602e92120a1f1db5f7a
change-id: 20250701-qcom-gpio-lookup-open-drain-e3443115ea24

Best regards,
-- 
Bartosz Golaszewski <bartosz.golaszewski@...aro.org>