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| author | Roger Quadros <rogerq@kernel.org> | 2024-04-12 15:02:00 +0300 |
|---|---|---|
| committer | Nishanth Menon <nm@ti.com> | 2024-04-29 14:35:28 -0500 |
| commit | 35fd7af5f7b394749ad1030f72df345ae880318b (patch) | |
| tree | 5cae77d4d37409a51910ab32af9ec662b6ea5c14 | |
| parent | c1453d3c3e9baf538b5f978c9e7cc24e47cc877e (diff) | |
| download | linux-35fd7af5f7b394749ad1030f72df345ae880318b.tar.gz | |
arm64: dts: ti: k3-am62a: Disable USB LPM
As per AM62A TRM [1] USB Link Power Management (LPM)
feature is not supported. Disable it else it may
cause enumeration failure on some devices.
> 4.9.2.1 USB2SS Unsupported Features
> The following features are not supported on this family of devices:
> ...
> - USB 2.0 ECN: Link Power Management (LPM)
> ...
[1] - https://www.ti.com/lit/pdf/spruj16
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Link: https://lore.kernel.org/r/20240412-for-v6-10-am62-usb-typec-dt-v7-3-93b827adf97e@kernel.org
Signed-off-by: Nishanth Menon <nm@ti.com>
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi index 31fc59b02f21a9..3fd59283eafe25 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi @@ -622,6 +622,8 @@ interrupt-names = "host", "peripheral"; maximum-speed = "high-speed"; dr_mode = "otg"; + snps,usb2-gadget-lpm-disable; + snps,usb2-lpm-disable; }; }; @@ -646,6 +648,8 @@ interrupt-names = "host", "peripheral"; maximum-speed = "high-speed"; dr_mode = "otg"; + snps,usb2-gadget-lpm-disable; + snps,usb2-lpm-disable; }; }; |