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    Subject[PATCH 5.2 025/131] arm64: dts: rockchip: Fix USB3 Type-C on rk3399-sapphire
    Date
    [ Upstream commit e1d9149e8389f1690cdd4e4056766dd26488a0fe ]

    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 <vicencb@gmail.com>
    Signed-off-by: Heiko Stuebner <heiko@sntech.de>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    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 04623e52ac5db..1bc1579674e57 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 {
    --
    2.20.1


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