From: William wu <wulf@xxxxxxxxxxxxxx> We found that the suspend process was blocked when it run into ehci/ohci module due to clk-480m of usb2-phy was disabled. The root cause is that usb2-phy suspended earlier than ehci/ohci (usb2-phy will be auto suspended if no devices plug-in). and the clk-480m provided by it was disabled if no module used. However, some suspend process related ehci/ohci are base on this clock, so we should refer it into ehci/ohci driver to prevent this case. Signed-off-by: William wu <wulf@xxxxxxxxxxxxxx> Signed-off-by: Xing Zheng <zhengxing@xxxxxxxxxxxxxx> --- arch/arm64/boot/dts/rockchip/rk3399.dtsi | 28 ++++++++++++++++++++-------- 1 file changed, 20 insertions(+), 8 deletions(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi index b65c193..228c764 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi @@ -315,8 +315,10 @@ compatible = "generic-ehci"; reg = <0x0 0xfe380000 0x0 0x20000>; interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH 0>; - clocks = <&cru HCLK_HOST0>, <&cru HCLK_HOST0_ARB>; - clock-names = "hclk_host0", "hclk_host0_arb"; + clocks = <&cru HCLK_HOST0>, <&cru HCLK_HOST0_ARB>, + <&cru SCLK_USBPHY0_480M_SRC>; + clock-names = "hclk_host0", "hclk_host0_arb", + "usbphy0_480m"; phys = <&u2phy0_host>; phy-names = "usb"; status = "disabled"; @@ -326,8 +328,12 @@ compatible = "generic-ohci"; reg = <0x0 0xfe3a0000 0x0 0x20000>; interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH 0>; - clocks = <&cru HCLK_HOST0>, <&cru HCLK_HOST0_ARB>; - clock-names = "hclk_host0", "hclk_host0_arb"; + clocks = <&cru HCLK_HOST0>, <&cru HCLK_HOST0_ARB>, + <&cru SCLK_USBPHY0_480M_SRC>; + clock-names = "hclk_host0", "hclk_host0_arb", + "usbphy0_480m"; + phys = <&u2phy0_host>; + phy-names = "usb"; status = "disabled"; }; @@ -335,8 +341,10 @@ compatible = "generic-ehci"; reg = <0x0 0xfe3c0000 0x0 0x20000>; interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH 0>; - clocks = <&cru HCLK_HOST1>, <&cru HCLK_HOST1_ARB>; - clock-names = "hclk_host1", "hclk_host1_arb"; + clocks = <&cru HCLK_HOST1>, <&cru HCLK_HOST1_ARB>, + <&cru SCLK_USBPHY1_480M_SRC>; + clock-names = "hclk_host1", "hclk_host1_arb", + "usbphy1_480m"; phys = <&u2phy1_host>; phy-names = "usb"; status = "disabled"; @@ -346,8 +354,12 @@ compatible = "generic-ohci"; reg = <0x0 0xfe3e0000 0x0 0x20000>; interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH 0>; - clocks = <&cru HCLK_HOST1>, <&cru HCLK_HOST1_ARB>; - clock-names = "hclk_host1", "hclk_host1_arb"; + clocks = <&cru HCLK_HOST1>, <&cru HCLK_HOST1_ARB>, + <&cru SCLK_USBPHY1_480M_SRC>; + clock-names = "hclk_host1", "hclk_host1_arb", + "usbphy1_480m"; + phys = <&u2phy1_host>; + phy-names = "usb"; status = "disabled"; }; -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
