diff options
| author | Stefan Eichenberger <stefan.eichenberger@toradex.com> | 2024-01-26 13:41:14 +0100 |
|---|---|---|
| committer | Stefan Eichenberger <eichest@gmail.com> | 2024-05-02 09:31:29 +0200 |
| commit | f0df47cb61f4da48ea41b9db5288d99ab145b22b (patch) | |
| tree | 508abfc33c9096054e8f82d36330bf16e62106ec | |
| parent | 3ea30f07938f71b445c1b8dabdcf67ec98dc8843 (diff) | |
arm64: dts: freescale: imx8mm-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 two new
regulators for the USB hub and PCIe that can be turned off when the
system is suspended.
Upstream-Status: Backport [1288f819d6c7e3dc2e301728cb7fa9a99a718234]
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi index ed711e93afc1..ce20de259805 100644 --- a/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mm-verdin-dahlia.dtsi @@ -32,6 +32,25 @@ sound-dai = <&sai2>; }; }; + + reg_usb_hub: regulator-usb-hub { + compatible = "regulator-fixed"; + enable-active-high; + /* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */ + gpio = <&gpio5 1 GPIO_ACTIVE_HIGH>; + regulator-boot-on; + regulator-name = "HUB_PWR_EN"; + }; + + reg_pcie: regulator-pcie { + compatible = "regulator-fixed"; + enable-active-high; + /* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */ + gpio = <&gpio5 1 GPIO_ACTIVE_HIGH>; + regulator-boot-on; + regulator-name = "PCIE_1_PWR_EN"; + startup-delay-us = <100000>; + }; }; /* Verdin SPI_1 */ @@ -98,6 +117,7 @@ /* Verdin PCIE_1 */ &pcie0 { + vpcie-supply = <®_pcie>; status = "okay"; }; @@ -120,6 +140,11 @@ status = "okay"; }; +/* We support turning off sleep moci on Dahlia */ +®_force_sleep_moci { + status = "disabled"; +}; + /* Verdin I2S_1 */ &sai2 { status = "okay"; @@ -148,8 +173,16 @@ /* Verdin USB_2 */ &usbotg2 { + #address-cells = <1>; + #size-cells = <0>; disable-over-current; status = "okay"; + + usb-hub@1 { + compatible = "usb424,2744"; + reg = <1>; + vdd-supply = <®_usb_hub>; + }; }; /* Verdin SD_1 */ |