arm64: dts: qcom: msm8996: Disable USB2 PHY suspend by core

[ Upstream commit d026c96b25b7ce5df89526aad2df988d553edb4d ]

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 <mgautam@codeaurora.org>
Signed-off-by: Paolo Pisati <p.pisati@gmail.com>
Link: https://lore.kernel.org/r/20191209151501.26993-1-p.pisati@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index 87f4d9c1b0d4c92f25550b8b95edfbd2afa36f73..fbb8ce78f95be803209eead3274b1bd1245d35c3 100644 (file)
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -1598,6 +1598,8 @@
                                interrupts = <0 138 IRQ_TYPE_LEVEL_HIGH>;
                                phys = <&hsusb_phy2>;
                                phy-names = "usb2-phy";
+                               snps,dis_u2_susphy_quirk;
+                               snps,dis_enblslpm_quirk;
                        };
                };
 
@@ -1628,6 +1630,8 @@
                                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;
                        };
                };