Commit 3935fbc8 authored by Stefan Eichenberger's avatar Stefan Eichenberger Committed by Nishanth Menon
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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.

Signed-off-by: default avatarStefan Eichenberger <stefan.eichenberger@toradex.com>
Reviewed-by: default avatarFrancesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240301084901.16656-3-eichest@gmail.com


Signed-off-by: default avatarNishanth Menon <nm@ti.com>
parent 566bbb01

arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi

+22 −0
Original line number Diff line number Diff line
@@ -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 */
@@ -184,6 +193,11 @@ &ospi0 { 
	status = "okay";

};



/* Do not force CTRL_SLEEP_MOCI# always enabled */

&reg_force_sleep_moci {

	status = "disabled";

};



/* Verdin SD_1 */

&sdhci1 {

	status = "okay";
@@ -204,7 +218,15 @@ &usbss1 { 
};



&usb1 {

	#address-cells = <1>;

	#size-cells = <0>;

	status = "okay";



	usb-hub@1 {

		compatible = "usb424,2744";

		reg = <1>;

		vdd-supply = <&reg_usb_hub>;

	};

};



/* Verdin CTRL_WAKE1_MICO# */