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

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Date:   Tue,  1 Jun 2021 11:01:38 +0200
From:   Neil Armstrong <narmstrong@...libre.com>
To:     khilman@...libre.com, jbrunet@...libre.com,
        martin.blumenstingl@...glemail.com
Cc:     linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        tobetter@...il.com, Neil Armstrong <narmstrong@...libre.com>
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 <narmstrong@...libre.com>
---
 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