linux-kernel - [PATCH] arm64: dts: qcom: qcs6490-rb3gen2: Specify i2c1 clock frequency

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Message-Id: <20241004-i2c1-frequency-v1-1-77a359015d54@oss.qualcomm.com>
Date: Fri, 04 Oct 2024 21:09:05 -0700
From: Bjorn Andersson <bjorn.andersson@....qualcomm.com>
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,
        Bjorn Andersson <bjorn.andersson@....qualcomm.com>
Subject: [PATCH] arm64: dts: qcom: qcs6490-rb3gen2: Specify i2c1 clock
 frequency

Per the binding, omitting the clock frequency from a Geni I2C controller
node defaults the bus to 100Khz. But at least in Linux, a friendly info
print highlights the lack of explicitly defined frequency in the
DeviceTree.

Specify the frequency, to give it an explicit value, and to silence the
log print in Linux.

Signed-off-by: Bjorn Andersson <bjorn.andersson@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
index 0d45662b8028..469a30f138de 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
@@ -598,6 +598,7 @@ lt9611_out: endpoint {
 };
 
 &i2c1 {
+	clock-frequency = <100000>;
 	status = "okay";
 
 	typec-mux@1c {

---
base-commit: 58ca61c1a866bfdaa5e19fb19a2416764f847d75
change-id: 20241004-i2c1-frequency-1b57e758e542

Best regards,
-- 
Bjorn Andersson <bjorn.andersson@....qualcomm.com>