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[129.46.96.20]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-33ba4ed64fcsm29020697eec.16.2026.09.14.03.12.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Sep 2026 03:12:36 -0700 (PDT) From: Xin Liu To: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Yijie Yang , Abel Vesa , 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 1/3] arm64: dts: qcom: purwa-iot-evk: use on-board crystal for PS8830 retimers Date: Mon, 14 Sep 2026 03:12:28 -0700 Message-ID: <20260914101233.981643-2-xin.liu@oss.qualcomm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260914101233.981643-1-xin.liu@oss.qualcomm.com> References: <20260914101233.981643-1-xin.liu@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: oPpkVSLpGN05Dyji8Jkc1bZCRR4iE7ah X-Proofpoint-Spam-Info: AW1haW4tMjYwOTE0MDE0NSBTYWx0ZWRfXzaYL9SrLazjl QIKN9RM9aijMa8KidqCm7W3mkpUOCEUDOd4iARQ37WwVkJPTFGo+3x3gxXnXl2uECv7uqj3PCtC RsMFV1bOkniGSfweM4/Aa2RjPEqcQLU= X-Proofpoint-GUID: oPpkVSLpGN05Dyji8Jkc1bZCRR4iE7ah X-Authority-Analysis: v=2.4 cv=ftpJ914f c=1 sm=1 tr=0 ts=6aa7c896 cx=c_pps a=z9lCQkyTxNhZyzAvolXo/A==:117 a=ouPCqIW2jiPt+lZRy3xVPw==:17 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=3WHJM1ZQz_JShphwDgj5:22 a=EUspDBNiAAAA:8 a=dZtJYaTC1RL3iSm7oLcA:9 a=EyFUmsFV_t8cxB2kMr4A:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTE0MDE0NSBTYWx0ZWRfXwKBgZco8r+h7 Q5ci7BH1DlkxBnQSXo+enEQSiYa2OzcThQf4O7lF0Tz/2Wf5foEyuQXODo4uVmPagJijIuX0xd2 UumQNPqm3v8pUOYobzXIJ+KPK4st3GUngpnC8gQKi4OuG5oG+LNNBH01E7xw8Y1GB5wXswhSmdC iRhWTHMRmsZNLIxFr7eiUN2szelfs8HApsGNZP04CZOwgn8EXp7F2oKR4ZaPUqQbUywaRmHHWnY nz4rGQtdpFDSUz1p37uchnD8s4NT5gROfGwwj6O57AskRnOrxuRr5ieZe1PwlrQR0rglpxwiv+v NLHXummGi/+TrjNw2oN0Fx8GJtv1ihZniglxg+AzIyD/GKiyLDac0YHcWtxpHEJAhHXm4/n3TZQ R2jvH/SPrBbYiolC7b73ffmGoUKcCYXswkxxk8Z9lKVwehgscRchv+ovO3+dSAgomSuLG9+nghY miMX49FMv1CFnralWIg== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-14_03,2026-09-13_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 clxscore=1015 phishscore=0 adultscore=0 impostorscore=0 priorityscore=1501 malwarescore=0 spamscore=0 suspectscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609140145 On the Purwa IoT EVK, each PS8830 retimer 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. Remove the stale "Left unused" annotation from the vreg_rtmr0 regulators as the retimer is actively used. Fixes: 9ed20e877239 ("arm64: dts: qcom: Add base PURWA-IOT-EVK board") Signed-off-by: Xin Liu --- v3: New patch. --- arch/arm64/boot/dts/qcom/purwa-iot-evk.dts | 27 ++++++++++++++++++---- 1 file changed, 23 insertions(+), 4 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/purwa-iot-evk.dts b/arch/arm64/boot/dts/qcom/purwa-iot-evk.dts index 6fc6fe7c0899..4380a46b33b2 100644 --- a/arch/arm64/boot/dts/qcom/purwa-iot-evk.dts +++ b/arch/arm64/boot/dts/qcom/purwa-iot-evk.dts @@ -60,6 +60,26 @@ chosen { stdout-path = "serial0:115200n8"; }; + clocks { + clk_rtmr0_xo: clock-rtmr0-xo { + compatible = "fixed-clock"; + clock-frequency = <25000000>; + #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>; + }; + }; + connector3 { compatible = "usb-a-connector"; label = "USB-3-Type-A"; @@ -295,7 +315,6 @@ vreg_pcie_3v3_aux: regulator-pcie-3v3-aux { pinctrl-names = "default"; }; - /* Left unused as the retimer is not used on this board. */ vreg_rtmr0_1p15: regulator-rtmr0-1p15 { compatible = "regulator-fixed"; @@ -639,7 +658,7 @@ 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>; @@ -696,7 +715,7 @@ typec-mux@8 { compatible = "parade,ps8830"; reg = <0x8>; - clocks = <&rpmhcc RPMH_RF_CLK4>; + clocks = <&clk_rtmr0_xo>; vdd-supply = <&vreg_rtmr0_1p15>; vdd33-supply = <&vreg_rtmr0_3p3>; @@ -801,7 +820,7 @@ 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