linux-kernel - [PATCH v3 1/1] arm64: dts: qcom: ipq6018: fix clock rates for GCC_USB0_MOCK_UTMI

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Date: Mon, 18 Dec 2023 23:08:05 +0800
From: Chukun Pan <amadeus@....edu.cn>
To: Bjorn Andersson <andersson@...nel.org>
Cc: Andy Gross <agross@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Rob Herring <robh+dt@...nel.org>,
	linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org,
	Chukun Pan <amadeus@....edu.cn>
Subject: [PATCH v3 1/1] arm64: dts: qcom: ipq6018: fix clock rates for GCC_USB0_MOCK_UTMI_CLK

The downstream QSDK kernel [1] and GCC_USB1_MOCK_UTMI_CLK are both 24MHz.
Adjust GCC_USB0_MOCK_UTMI_CLK to 24MHz to avoid the following error:

clk: couldn't set gcc_usb0_mock_utmi_clk clk rate to 20000000 (-22), current rate: 24000000

1. https://git.codelinaro.org/clo/qsdk/oss/kernel/linux-ipq-5.4/-/commit/486c8485f59

Fixes: 5726079cd486 ("arm64: dts: ipq6018: Use reference clock to set dwc3 period")
Signed-off-by: Chukun Pan <amadeus@....edu.cn>
---
Changes in v3:
* Update commit message and add reference link.

 arch/arm64/boot/dts/qcom/ipq6018.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/ipq6018.dtsi b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
index 2399d16f147e..d114c8096347 100644
--- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
@@ -621,7 +621,7 @@ usb3: usb@...8800 {
 					  <&gcc GCC_USB0_MOCK_UTMI_CLK>;
 			assigned-clock-rates = <133330000>,
 					       <133330000>,
-					       <20000000>;
+					       <24000000>;
 
 			resets = <&gcc GCC_USB0_BCR>;
 			status = "disabled";
-- 
2.25.1