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From:   Anand Moon <linux.amoon@gmail.com>
To:     linux-phy@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org,
        linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org
Cc:     Anand Moon <linux.amoon@gmail.com>,
        Matt Corallo <oc2udbzfd@mattcorallo.com>,
        Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Neil Armstrong <narmstrong@baylibre.com>,
        Kevin Hilman <khilman@baylibre.com>,
        Jerome Brunet <jbrunet@baylibre.com>,
        Kishon Vijay Abraham I <kishon@ti.com>,
        Vinod Koul <vkoul@kernel.org>,
        Emiliano Ingrassia <ingrassia@epigenesys.com>,
        Brian Kim <brian.kim@hardkernel.com>
Subject: [PATCHv3 1/6] ARM: dts: meson8b: odroidc1: Add usb phy power node
Date:   Tue, 17 Aug 2021 09:45:35 +0530
Message-Id: <20210817041548.1276-2-linux.amoon@gmail.com>
In-Reply-To: <20210817041548.1276-1-linux.amoon@gmail.com>
References: <20210817041548.1276-1-linux.amoon@gmail.com>
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Add missing usb phy power node for usb node fix below warning.
P5V0 regulator supply input voltage range to USB host controller.
As described in the C1+ schematics, GPIO GPIOAO_5 is used to
enable input power to USB ports, set it to Active Low.

[    1.260772] dwc2 c90c0000.usb: Looking up vbus-supply from device tree
[    1.260784] dwc2 c90c0000.usb: Looking up vbus-supply property in
		mode /soc/usb@c90c0000 failed

Fixes: 2eb79a4d15ff (ARM: dts: meson: enabling the USB Host
		controller on Odroid-C1/C1+ board)

Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
V2 > changes gpio polarity ACTIVE_HIGH to ACTIVE_LOW.
     Fix the source power from phy-supply to vbus-supply.

[1] https://lore.kernel.org/linux-devicetree/20210716103651.1455-2-linux.amoon@gmail.com/

V1 > Fix the Input GPIO polarity from HIGH to LOW.

previous version
[0] https://patchwork.kernel.org/project/linux-amlogic/patch/20190113181808.5768-1-linux.amoon@gmail.com

changes fix the vbus-suppy to phy-supply, drop enable usb0

    USB_PWR                       2    1      0 unknown  5000mV     0mA  5000mV  5000mV
       phy-c1108820.phy.0-phy     2                                 0mA     0mV     0mV
---
 arch/arm/boot/dts/meson8b-odroidc1.dts | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/meson8b-odroidc1.dts b/arch/arm/boot/dts/meson8b-odroidc1.dts
index c440ef94e082..30ec6a7f20c7 100644
--- a/arch/arm/boot/dts/meson8b-odroidc1.dts
+++ b/arch/arm/boot/dts/meson8b-odroidc1.dts
@@ -32,6 +32,23 @@ emmc_pwrseq: emmc-pwrseq {
 		reset-gpios = <&gpio BOOT_9 GPIO_ACTIVE_LOW>;
 	};
 
+	usb_pwr_en: regulator-usb-pwr-en {
+		compatible = "regulator-fixed";
+
+		regulator-name = "USB_OTG_PWR";
+
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		/*
+		 * signal name from schematics: USB_POWER - P5V0
+		 */
+		vin-supply = <&p5v0>;
+		/*
+		 * signal name from schematics: PWREN - GPIOAO.BIT5
+		 */
+		gpios = <&gpio_ao GPIOAO_5 GPIO_ACTIVE_LOW>;
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		blue {
@@ -119,7 +136,6 @@ vcc_3v3: regulator-vcc-3v3 {
 		regulator-name = "VCC3V3";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
-
 		vin-supply = <&p5v0>;
 	};
 
@@ -382,4 +398,5 @@ &usb1_phy {
 
 &usb1 {
 	status = "okay";
+	vbus-supply = <&usb_pwr_en>;
 };
-- 
2.32.0