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From: Xin Liu <xin.liu@oss.qualcomm.com>
To: Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konradybcio@kernel.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>
Cc: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>,
	Yijie Yang <yijie.yang@oss.qualcomm.com>,
	linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, xin.liu@oss.qualcomm.com,
	tingwei.zhang@oss.qualcomm.com, jie.gan@oss.qualcomm.com,
	guodong.xu@oss.qualcomm.com
Subject: [PATCH v3 2/3] arm64: dts: qcom: hamoa-iot-evk: use on-board crystal for PS8830 retimers
Date: Mon, 14 Sep 2026 03:12:29 -0700	[thread overview]
Message-ID: <20260914101233.981643-3-xin.liu@oss.qualcomm.com> (raw)
In-Reply-To: <20260914101233.981643-1-xin.liu@oss.qualcomm.com>

On the Hamoa IoT EVK, each of the two existing PS8830 retimers has its
own 25 MHz crystal wired to the retimer's XI/XO pins. The reference
clock does not come from the PMIC, so the RPMH_RF_CLK4/5 references in
the retimer nodes are wrong: they keep those RF clocks enabled for
nothing and describe a connection that does not exist on the board.

Fixes: c11645afb0e2 ("arm64: dts: qcom: Add base HAMOA-IOT-EVK board")
Signed-off-by: Xin Liu <xin.liu@oss.qualcomm.com>
---
v3: New patch.
---
 arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
index 776bded3a312..57c8ae2e7d4c 100644
--- a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
+++ b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts
@@ -35,6 +35,18 @@ mcp2518fd_osc: clock-40000000 {
 			clock-frequency = <40000000>;
 			#clock-cells = <0>;
 		};
+
+		clk_rtmr1_xo: clock-rtmr1-xo {
+			compatible = "fixed-clock";
+			clock-frequency = <25000000>;
+			#clock-cells = <0>;
+		};
+
+		clk_rtmr2_xo: clock-rtmr2-xo {
+			compatible = "fixed-clock";
+			clock-frequency = <25000000>;
+			#clock-cells = <0>;
+		};
 	};
 
 	wcd938x: audio-codec {
@@ -699,7 +711,7 @@ typec-mux@8 {
 		compatible = "parade,ps8830";
 		reg = <0x08>;
 
-		clocks = <&rpmhcc RPMH_RF_CLK5>;
+		clocks = <&clk_rtmr2_xo>;
 
 		vdd-supply = <&vreg_rtmr2_1p15>;
 		vdd33-supply = <&vreg_rtmr2_3p3>;
@@ -814,7 +826,7 @@ typec-mux@8 {
 		compatible = "parade,ps8830";
 		reg = <0x8>;
 
-		clocks = <&rpmhcc RPMH_RF_CLK4>;
+		clocks = <&clk_rtmr1_xo>;
 
 		vdd-supply = <&vreg_rtmr1_1p15>;
 		vdd33-supply = <&vreg_rtmr1_3p3>;
-- 
2.43.0


  parent reply	other threads:[~2026-09-14 10:12 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-14 10:12 [PATCH v3 0/3] arm64: dts: qcom: PS8830 retimer clock fixes and typec0 enablement Xin Liu
2026-09-14 10:12 ` [PATCH v3 1/3] arm64: dts: qcom: purwa-iot-evk: use on-board crystal for PS8830 retimers Xin Liu
2026-09-14 11:07   ` Konrad Dybcio
2026-09-14 10:12 ` Xin Liu [this message]
2026-09-14 11:07   ` [PATCH v3 2/3] arm64: dts: qcom: hamoa-iot-evk: " Konrad Dybcio
2026-09-14 10:12 ` [PATCH v3 3/3] arm64: dts: qcom: hamoa-iot-evk: switch typec0 to PS8830 retimer Xin Liu
2026-09-14 11:08   ` Konrad Dybcio

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