From mboxrd@z Thu Jan 1 00:00:00 1970 From: Manu Gautam Subject: [PATCH v1] arm64: dts: qcom: msm8996: Disable USB2 PHY suspend by core Date: Thu, 3 Jan 2019 16:05:38 +0530 Message-ID: <20190103103538.30970-1-mgautam@codeaurora.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Andy Gross Cc: Vivek Gautam , linux-arm-msm@vger.kernel.org, Manu Gautam , David Brown , Rob Herring , Mark Rutland , "open list:ARM/QUALCOMM SUPPORT" , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" , open list List-Id: devicetree@vger.kernel.org QUSB2 PHY on msm8996 doesn't work well when autosuspend by dwc3 core using USB2PHYCFG register is enabled. One of the issue seen is that PHY driver reports PLL lock failure and fails phy_init() if dwc3 core has USB2 PHY suspend enabled. Fix this by using quirks to disable USB2 PHY LPM/suspend and dwc3 core already takes care of explicitly suspending PHY during suspend if quirks are specified. Signed-off-by: Manu Gautam --- arch/arm64/boot/dts/qcom/msm8996.dtsi | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi index b29fe80d7288..1f14ca35afc2 100644 --- a/arch/arm64/boot/dts/qcom/msm8996.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi @@ -911,6 +911,8 @@ interrupts = <0 138 IRQ_TYPE_LEVEL_HIGH>; phys = <&hsusb_phy2>; phy-names = "usb2-phy"; + snps,dis_u2_susphy_quirk; + snps,dis_enblslpm_quirk; }; }; @@ -940,6 +942,8 @@ interrupts = <0 131 IRQ_TYPE_LEVEL_HIGH>; phys = <&hsusb_phy1>, <&ssusb_phy_0>; phy-names = "usb2-phy", "usb3-phy"; + snps,dis_u2_susphy_quirk; + snps,dis_enblslpm_quirk; }; }; -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project