From e1d9149e8389f1690cdd4e4056766dd26488a0fe Mon Sep 17 00:00:00 2001 From: Vicente Bergas Date: Thu, 27 Jun 2019 15:12:28 +0200 Subject: [PATCH] arm64: dts: rockchip: Fix USB3 Type-C on rk3399-sapphire Before this patch, the Type-C port on the Sapphire board is dead. If setting the 'regulator-always-on' property to 'vcc5v0_typec0' then the port works for about 4 seconds at start-up. This is a sample trace with a memory stick plugged in: 1.- The memory stick LED lights on and kernel reports: [ 4.782999] scsi 0:0:0:0: Direct-Access USB DISK PMAP PQ: 0 ANSI: 4 [ 5.904580] sd 0:0:0:0: [sdb] 3913344 512-byte logical blocks: (2.00 GB/1.87 GiB) [ 5.906860] sd 0:0:0:0: [sdb] Write Protect is off [ 5.908973] sd 0:0:0:0: [sdb] Mode Sense: 23 00 00 00 [ 5.909122] sd 0:0:0:0: [sdb] No Caching mode page found [ 5.911214] sd 0:0:0:0: [sdb] Assuming drive cache: write through [ 5.951585] sdb: sdb1 [ 5.954816] sd 0:0:0:0: [sdb] Attached SCSI removable disk 2.- 4 seconds later the memory stick LED lights off and kernel reports: [ 9.082822] phy phy-ff770000.syscon:usb2-phy@e450.2: charger = USB_DCP_CHARGER 3.- After a minute the kernel reports: [ 71.666761] usb 5-1: USB disconnect, device number 2 It has been checked that, although the LED is off, VBUS is present. If, instead, the dr_mode is changed to host and the phy-supply changed accordingly, then it works. It has only been tested in host mode. Signed-off-by: Vicente Bergas Signed-off-by: Heiko Stuebner --- arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi index 04623e5..1bc1579 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi @@ -565,12 +565,11 @@ status = "okay"; u2phy0_otg: otg-port { - phy-supply = <&vcc5v0_typec0>; status = "okay"; }; u2phy0_host: host-port { - phy-supply = <&vcc5v0_host>; + phy-supply = <&vcc5v0_typec0>; status = "okay"; }; }; @@ -620,7 +619,7 @@ &usbdrd_dwc3_0 { status = "okay"; - dr_mode = "otg"; + dr_mode = "host"; }; &usbdrd3_1 { -- 2.7.4