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| author | Stefan Eichenberger <stefan.eichenberger@toradex.com> | 2024-03-01 09:49:01 +0100 |
|---|---|---|
| committer | Nishanth Menon <nm@ti.com> | 2024-04-29 14:35:29 -0500 |
| commit | 3935fbc87ddebea5439f3ab6a78b1e83e976bf88 (patch) | |
| tree | 4b12f451a6f6b3e24ac002798ba7ae4ea27e4b34 | |
| parent | 566bbb018e415fe5d7f960b8003915bf8d8d1414 (diff) | |
| download | linux-3935fbc87ddebea5439f3ab6a78b1e83e976bf88.tar.gz | |
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: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Reviewed-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Link: https://lore.kernel.org/r/20240301084901.16656-3-eichest@gmail.com
Signed-off-by: Nishanth Menon <nm@ti.com>
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am62-verdin-dahlia.dtsi | 22 |
1 files changed, 22 insertions, 0 deletions
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 9202181fbd652..e8f4d136e5dfb 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 @@ 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 @@ status = "okay"; }; +/* Do not force CTRL_SLEEP_MOCI# always enabled */ +®_force_sleep_moci { + status = "disabled"; +}; + /* Verdin SD_1 */ &sdhci1 { status = "okay"; @@ -204,7 +218,15 @@ }; &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# */ |