diff options
| author | Stefan Eichenberger <stefan.eichenberger@toradex.com> | 2024-04-05 18:07:18 +0200 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2024-04-22 12:36:56 +0800 |
| commit | 25b3af5395b5b07d8e656c932b7f694daa14b384 (patch) | |
| tree | ec5d59dc5853fb83301fe270b569161826e14ed6 /arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi | |
| parent | 9d071e1889a578162ced6a6c9062653f9bcb442c (diff) | |
arm64: dts: freescale: imx8mp-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.
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi index 718004fe983f..b62d6482da66 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp-verdin-dahlia.dtsi @@ -32,6 +32,25 @@ sound-dai = <&sai1>; }; }; + + reg_usb_hub: regulator-usb-hub { + compatible = "regulator-fixed"; + enable-active-high; + /* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */ + gpio = <&gpio4 29 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 = <&gpio4 29 GPIO_ACTIVE_HIGH>; + regulator-boot-on; + regulator-name = "PCIE_1_PWR_EN"; + startup-delay-us = <100000>; + }; }; &backlight { @@ -122,6 +141,7 @@ /* Verdin PCIE_1 */ &pcie { + vpcie-supply = <®_pcie>; status = "okay"; }; @@ -148,6 +168,11 @@ vin-supply = <®_3p3v>; }; +/* We support turning off sleep moci on Dahlia */ +®_force_sleep_moci { + status = "disabled"; +}; + /* Verdin I2S_1 */ &sai1 { assigned-clocks = <&clk IMX8MP_CLK_SAI1>; @@ -191,6 +216,25 @@ status = "okay"; }; +&usb_dwc3_1 { + #address-cells = <1>; + #size-cells = <0>; + + usb_hub_3_0: usb-hub@1 { + compatible = "usb424,5744"; + reg = <1>; + peer-hub = <&usb_hub_2_0>; + vdd-supply = <®_usb_hub>; + }; + + usb_hub_2_0: usb-hub@2 { + compatible = "usb424,2744"; + reg = <2>; + peer-hub = <&usb_hub_3_0>; + vdd-supply = <®_usb_hub>; + }; +}; + /* Verdin SD_1 */ &usdhc2 { status = "okay"; |