From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Xin Liu <xin.liu@oss.qualcomm.com>,
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: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, tingwei.zhang@oss.qualcomm.com,
jie.gan@oss.qualcomm.com,
Guodong Xu <guodong.xu@oss.qualcomm.com>
Subject: Re: [PATCH v2] arm64: dts: qcom: hamoa-iot-evk: switch typec0 to PS8830 retimer
Date: Tue, 18 Aug 2026 12:49:37 +0200 [thread overview]
Message-ID: <049be278-8958-4d04-8501-7fb60d2169cc@oss.qualcomm.com> (raw)
In-Reply-To: <20260803132753.994619-1-xin.liu@oss.qualcomm.com>
On 8/3/26 3:27 PM, Xin Liu wrote:
> The Hamoa IoT EVK hardware design uses a Parade PS8830 retimer on
> I2C3 for USB Type-C port 0. Describe the retimer and route typec0
> through it to enable USB 3.0 SuperSpeed and DisplayPort Alt Mode.
>
> Supply the PS8830 from the existing vreg_rtmr0_* rails and remove
> their stale "Left unused" annotation.
>
> The FSUSB42 SBU mux chip is present on the PCB but with all signal
> lines unconnected (NC), so remove the fsusb42 node and its pinctrl
> group.
[...]
> +&i2c3 {
> + clock-frequency = <400000>;
> + status = "okay";
> +
> + typec-mux@8 {
> + compatible = "parade,ps8830";
> + reg = <0x08>;
> +
> + clocks = <&rpmhcc RPMH_RF_CLK4>;
On other boards, the port0 retimer normally takes RF_CLK3 - have
you verified this bit?
Konrad
next prev parent reply other threads:[~2026-08-18 10:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-03 13:27 Xin Liu
2026-08-03 19:35 ` Dmitry Baryshkov
2026-08-04 7:04 ` Xin Liu
2026-08-18 10:49 ` Konrad Dybcio [this message]
2026-09-03 7:55 ` Xin Liu
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