From: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
To: Bartosz Golaszewski <brgl@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Linus Walleij <linusw@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Xu Yang <xu.yang_2@nxp.com>, Peng Fan <peng.fan@nxp.com>,
Vinod Koul <vkoul@kernel.org>,
Neil Armstrong <neil.armstrong@linaro.org>,
Peter Chen <peter.chen@kernel.org>,
Pavankumar Kondeti <quic_pkondeti@quicinc.com>,
Stephen Boyd <stephen.boyd@linaro.org>,
Konrad Dybcio <konradybcio@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>,
linux-arm-msm@vger.kernel.org, linux-gpio@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-usb@vger.kernel.org, linux-phy@lists.infradead.org,
Greg Kroah-Hartman <gregkh@suse.de>,
Peter Chen <peter.chen@nxp.com>
Subject: [PATCH 10/10] ARM: dts: qcom: apq8074-dragonboard: enable the HSIC host
Date: Mon, 10 Aug 2026 18:42:14 +0300 [thread overview]
Message-ID: <20260810-msm8974-usb-hsic-v1-10-e5f93ea76ffa@oss.qualcomm.com> (raw)
In-Reply-To: <20260810-msm8974-usb-hsic-v1-0-e5f93ea76ffa@oss.qualcomm.com>
The dragonboard carries an SMSC USB4604 HSIC hub, but with the HSIC
controller undescribed the whole HSIC-attached part of the board is
dead.
Enable the HSIC controller. The USB4604 hub isn't controllable through
the I2C because of the board design issues, so reference it as a simple
USB device, describing the reset line.
Assisted-by: Claude:claude-fable-5
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
---
.../arm/boot/dts/qcom/qcom-apq8074-dragonboard.dts | 27 ++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/arch/arm/boot/dts/qcom/qcom-apq8074-dragonboard.dts b/arch/arm/boot/dts/qcom/qcom-apq8074-dragonboard.dts
index 083fd8fa0aea..02183b37ddbe 100644
--- a/arch/arm/boot/dts/qcom/qcom-apq8074-dragonboard.dts
+++ b/arch/arm/boot/dts/qcom/qcom-apq8074-dragonboard.dts
@@ -158,6 +158,14 @@ &mdss {
};
&pm8941_gpios {
+ hsic_hub_rst_default: hsic-hub-rst-state {
+ pins = "gpio8";
+ function = "normal";
+ drive-push-pull;
+ qcom,drive-strength = <PMIC_GPIO_STRENGTH_MED>;
+ power-source = <PM8941_GPIO_VPH>;
+ };
+
msm_keys_default: pm8941-gpio-keys-state {
pins = "gpio5", "gpio23";
function = "normal";
@@ -487,6 +495,25 @@ &usb_hs2_phy {
qcom,init-seq = /bits/ 8 <0x1 0x63>;
};
+&usb_hsic {
+ pinctrl-0 = <&hsic_hub_rst_default>;
+ pinctrl-names = "default";
+
+ status = "okay";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* SMSC USB4604 hub, standalone mode (SMBus config not usable) */
+ hub@1 {
+ compatible = "usb424,4604";
+ reg = <1>;
+ clocks = <&rpmcc RPM_SMD_CXO_D1>;
+ reset-gpios = <&pm8941_gpios 8 GPIO_ACTIVE_LOW>;
+ vdd-supply = <&pm8941_s3>;
+ };
+};
+
&usb3 {
dr_mode = "host";
--
2.47.3
--
linux-phy mailing list
linux-phy@lists.infradead.org
https://lists.infradead.org/mailman/listinfo/linux-phy
prev parent reply other threads:[~2026-08-10 15:42 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-10 15:42 [PATCH 00/10] ARM: qcom: msm8974: enable HSIC controller Dmitry Baryshkov
2026-08-10 15:42 ` [PATCH 01/10] dt-bindings: pinctrl: qcom,tlmm-common: allow functions on the HSIC pins Dmitry Baryshkov
2026-08-10 15:42 ` [PATCH 02/10] dt-bindings: usb: ci-hdrc-usb2: allow the HSIC PHY as the ULPI child Dmitry Baryshkov
2026-08-10 15:42 ` [PATCH 03/10] phy: qcom-usb-hsic: do not run the sleep calibration clock Dmitry Baryshkov
2026-08-10 15:42 ` [PATCH 04/10] phy: qcom-usb-hsic: engage HSIC mode from phy_calibrate() Dmitry Baryshkov
2026-08-10 15:42 ` [PATCH 05/10] usb: chipidea: msm: support the HSIC asynchronous wakeup interrupt Dmitry Baryshkov
2026-08-10 15:42 ` [PATCH 06/10] usb: chipidea: msm: keep the glue device runtime-active Dmitry Baryshkov
2026-08-10 15:42 ` [PATCH 07/10] usb: chipidea: msm: do not force the TX FIFO idle on HSIC instances Dmitry Baryshkov
2026-08-10 15:42 ` [PATCH 08/10] usb: chipidea: host: calibrate the PHY after starting the host Dmitry Baryshkov
2026-08-10 15:42 ` [PATCH 09/10] ARM: dts: qcom: msm8974: add the HSIC USB controller Dmitry Baryshkov
2026-08-10 15:42 ` Dmitry Baryshkov [this message]
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