linux-kernel - [PATCH v1 5/5] arm64: dts: verdin-imx8mm: Disable usb over-current

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Date:   Tue, 22 Nov 2022 16:54:38 +0100
From:   Philippe Schenker <dev@...henker.ch>
To:     devicetree@...r.kernel.org, Shawn Guo <shawnguo@...nel.org>
Cc:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>, Rob Herring <robh+dt@...nel.org>,
        Philippe Schenker <philippe.schenker@...adex.com>,
        Andrejs Cainikovs <andrejs.cainikovs@...adex.com>,
        Fabio Estevam <festevam@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v1 5/5] arm64: dts: verdin-imx8mm: Disable usb over-current

From: Philippe Schenker <philippe.schenker@...adex.com>

Disable usb over-current of the chipidea driver on all Carrier-Boards
used by Toradex. Do this as we don't want to use this functionality on
our Carrier Boards and to leave it open to someone who includes our
module-level device-trees.

Remove the now obsolete disable-over-current flag from module-level
device-tree imx8mm-verdin.dtsi and leave it as already mentioned to
the people actually implementing the carrier-board to implement this.

This will prevent the warning "No over current polarity defined" from
being printed on boot.

Signed-off-by: Philippe Schenker <philippe.schenker@...adex.com>

---

 arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi | 2 ++
 arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi        | 2 --
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi
index c2a5c2f7b204..0360f6a08d30 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi
@@ -136,11 +136,13 @@ &uart3 {
 
 /* Verdin USB_1 */
 &usbotg1 {
+	disable-over-current;
 	status = "okay";
 };
 
 /* Verdin USB_2 */
 &usbotg2 {
+	disable-over-current;
 	status = "okay";
 };
 
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
index 0d454e0e2f7c..0680cee9aeb0 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin.dtsi
@@ -741,7 +741,6 @@ &usbotg1 {
 	adp-disable;
 	dr_mode = "otg";
 	hnp-disable;
-	over-current-active-low;
 	samsung,picophy-dc-vol-level-adjust = <7>;
 	samsung,picophy-pre-emp-curr-control = <3>;
 	srp-disable;
@@ -751,7 +750,6 @@ &usbotg1 {
 /* Verdin USB_2 */
 &usbotg2 {
 	dr_mode = "host";
-	over-current-active-low;
 	samsung,picophy-dc-vol-level-adjust = <7>;
 	samsung,picophy-pre-emp-curr-control = <3>;
 	vbus-supply = <&reg_usb_otg2_vbus>;
-- 
2.38.1