From: Antony Kurniawan Soemardi <[email protected]> The RPM clock controller manages clocks shared between the application processor and the RPM firmware, including fabric and bus clocks required by several peripherals.
With the RPM clock controller now available in the device tree, the USB controller must explicitly declare its dependency on RPM_DAYTONA_FABRIC_CLK. Without this declaration, the clock framework would consider it unused and disable it, breaking USB functionality. This also corrects the previous misuse of USB_HS1_XCVR_CLK as the core clock. The XCVR clock is in fact used for PHY/reset handling rather than as the main core clock. A similar issue has been observed on APQ8064, where missing the RPM fabric clock dependency leads to broken USB. Signed-off-by: Antony Kurniawan Soemardi <[email protected]> --- arch/arm/boot/dts/qcom/qcom-msm8960.dtsi | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/qcom/qcom-msm8960.dtsi b/arch/arm/boot/dts/qcom/qcom-msm8960.dtsi index fd28401cebb5..1d5e97b6aa4b 100644 --- a/arch/arm/boot/dts/qcom/qcom-msm8960.dtsi +++ b/arch/arm/boot/dts/qcom/qcom-msm8960.dtsi @@ -5,6 +5,7 @@ #include <dt-bindings/clock/qcom,gcc-msm8960.h> #include <dt-bindings/reset/qcom,gcc-msm8960.h> #include <dt-bindings/clock/qcom,lcc-msm8960.h> +#include <dt-bindings/clock/qcom,rpmcc.h> #include <dt-bindings/mfd/qcom-rpm.h> #include <dt-bindings/soc/qcom,gsbi.h> @@ -98,6 +99,13 @@ rpm: rpm@108000 { interrupt-names = "ack", "err", "wakeup"; + + rpmcc: clock-controller { + compatible = "qcom,rpmcc-msm8960", "qcom,rpmcc"; + #clock-cells = <1>; + clocks = <&pxo_board>, <&cxo_board>; + clock-names = "pxo", "cxo"; + }; }; ssbi: ssbi@500000 { @@ -507,8 +515,12 @@ usb1: usb@12500000 { reg = <0x12500000 0x200>, <0x12500200 0x200>; interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&gcc USB_HS1_XCVR_CLK>, <&gcc USB_HS1_H_CLK>; - clock-names = "core", "iface"; + clocks = <&rpmcc RPM_DAYTONA_FABRIC_CLK>, + <&gcc USB_HS1_H_CLK>, + <&gcc USB_HS1_XCVR_CLK>; + clock-names = "core", + "iface", + "fs"; assigned-clocks = <&gcc USB_HS1_XCVR_CLK>; assigned-clock-rates = <60000000>; resets = <&gcc USB_HS1_RESET>; -- 2.34.1
