diff options
| author | Stefan Eichenberger | 2024-04-17 10:49:02 +0200 |
|---|---|---|
| committer | Fabio Estevam | 2024-04-20 00:36:30 -0300 |
| commit | 45d14c0120537a6fda4968d33bf57bfdef53e5f5 (patch) | |
| tree | eeba89d1af59e697f92bc0f6418e4acaa0e5e84d /arch | |
| parent | 8c352a61eef6a8a2d7ffc4159a499f78f5fae99c (diff) | |
arm: dts: verdin-imx8mm/imx8mp: use gpio-hog for sleep moci
In Linux, we allow sleep moci to be turned off when the carrier board
supports it and the system is in suspend. In U-Boot, however, we want
the sleep moci to be always on. So we use a gpio hog and disable the
regulator. This change is necessary because we switched to upstream
device tree files with commit 23fe2def1edf
("verdin-imx8mm/verdin-imx8mp: move imx verdins to OF_UPSTREAM"). A
recent upstream patch removes the gpio hog from the Linux device tree,
so we need to add it to the u-boot dtsi. The following patch will remove
the gpio hog from the Linux device tree:
https://lore.kernel.org/linux-devicetree/20240405160720.5977-1-eichest@gmail.com/
The U-Boot patch can be applied without it and will not break the build.
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/dts/imx8mm-verdin-wifi-dev-u-boot.dtsi | 5 | ||||
| -rw-r--r-- | arch/arm/dts/imx8mp-verdin-wifi-dev-u-boot.dtsi | 4 |
2 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/dts/imx8mm-verdin-wifi-dev-u-boot.dtsi b/arch/arm/dts/imx8mm-verdin-wifi-dev-u-boot.dtsi index 38db56059d6..8b397f535c1 100644 --- a/arch/arm/dts/imx8mm-verdin-wifi-dev-u-boot.dtsi +++ b/arch/arm/dts/imx8mm-verdin-wifi-dev-u-boot.dtsi @@ -60,6 +60,11 @@ ctrl-sleep-moci-hog { bootph-pre-ram; + gpio-hog; + output-high; + gpios = <1 GPIO_ACTIVE_HIGH>; + line-name = "CTRL_SLEEP_MOCI#"; + }; }; diff --git a/arch/arm/dts/imx8mp-verdin-wifi-dev-u-boot.dtsi b/arch/arm/dts/imx8mp-verdin-wifi-dev-u-boot.dtsi index 03f211d5f7d..7b45a87450b 100644 --- a/arch/arm/dts/imx8mp-verdin-wifi-dev-u-boot.dtsi +++ b/arch/arm/dts/imx8mp-verdin-wifi-dev-u-boot.dtsi @@ -58,6 +58,10 @@ ctrl-sleep-moci-hog { bootph-pre-ram; + gpio-hog; + output-high; + gpios = <29 GPIO_ACTIVE_HIGH>; + line-name = "CTRL_SLEEP_MOCI#"; }; }; |