From ae6bfe80045f0b01b352dc03ff99c9afdcaff98b Mon Sep 17 00:00:00 2001 From: Stefan Eichenberger Date: Fri, 26 Jan 2024 13:58:53 +0100 Subject: [PATCH v1 2/2] arm64: dts: ti: k3-am62-verdin-dahlia: support sleep-moci Previously, we had the sleep-moci pin set to always on. However, the Dahlia carrier board supports disabling the sleep-moci when the system is suspended to power down peripherals that support it. This reduces overall power consumption. This commit adds support for this feature by disabling the reg_force_sleep_moci regulator and adding a new regulator for the USB hub that can be turned off when the system is suspended. Upstream-Status: Submitted [https://lore.kernel.org/linux-devicetree/20240301084901.16656-1-eichest@gmail.com/] Signed-off-by: Stefan Eichenberger --- .../boot/dts/ti/k3-am62-verdin-dahlia.dtsi | 22 +++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi index bf6d27e70bc4..bb066e726527 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi @@ -43,6 +43,15 @@ simple-audio-card,cpu { sound-dai = <&mcasp0>; }; }; + + reg_usb_hub: regulator-usb-hub { + compatible = "regulator-fixed"; + enable-active-high; + /* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */ + gpio = <&main_gpio0 31 GPIO_ACTIVE_HIGH>; + regulator-boot-on; + regulator-name = "HUB_PWR_EN"; + }; }; /* Verdin ETHs */ @@ -183,6 +192,11 @@ &ospi0 { status = "okay"; }; +/* Do not force CTRL_SLEEP_MOCI# always enabled */ +®_force_sleep_moci { + status = "disabled"; +}; + /* Verdin SD_1 */ &sdhci1 { ti,driver-strength-ohm = <33>; @@ -204,7 +218,15 @@ &usbss1 { }; &usb1 { + #address-cells = <1>; + #size-cells = <0>; status = "okay"; + + usb-hub@1 { + compatible = "usb424,2744"; + reg = <1>; + vdd-supply = <®_usb_hub>; + }; }; /* Verdin CTRL_WAKE1_MICO# */ -- 2.40.1