2021-06-01 09:03:11

by Neil Armstrong

Subject: [PATCH 4/6] arm64: dts: meson-sm1-odroid-hc4: disable unused USB PHY0

As described in the HC4 schematics, only the USB port B is used,
port A is left unconnected. Thus disable PHY0 and remove it from PHYs list.

Signed-off-by: Neil Armstrong <[email protected]>
---
arch/arm64/boot/dts/amlogic/meson-sm1-odroid-hc4.dts | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-hc4.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-hc4.dts
index bf15700c4b15..0a34b658f994 100644
--- a/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-hc4.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-sm1-odroid-hc4.dts
@@ -91,6 +91,10 @@ &sd_emmc_c {
};

&usb {
- phys = <&usb2_phy0>, <&usb2_phy1>;
- phy-names = "usb2-phy0", "usb2-phy1";
+ phys = <&usb2_phy1>;
+ phy-names = "usb2-phy1";
+};
+
+&usb2_phy0 {
+ status = "disabled";
};
--
2.25.1

2021-06-03 18:13:55

by Martin Blumenstingl

Subject: Re: [PATCH 4/6] arm64: dts: meson-sm1-odroid-hc4: disable unused USB PHY0

On Tue, Jun 1, 2021 at 11:01 AM Neil Armstrong <[email protected]> wrote:
>
> As described in the HC4 schematics, only the USB port B is used,
> port A is left unconnected. Thus disable PHY0 and remove it from PHYs list.
>
> Signed-off-by: Neil Armstrong <[email protected]>
Acked-by: Martin Blumenstingl <[email protected]>