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authorStefan Eichenberger2024-04-17 10:39:21 +0200
committerTom Rini2024-04-29 10:53:45 -0600
commitff10213b0e4f175ad8e2465f33a903d60967b5ec (patch)
treeda597339ae3b14fd35717bb0092cddc769fe56f2 /arch
parent04fbb13b5ee905257d9b4c994aca58a69f873fec (diff)
arm: dts: verdin-am62: 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 c07bba7a2c7e ("verdin-am62: move verdin am62 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/20240301084901.16656-1-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/k3-am625-verdin-wifi-dev-u-boot.dtsi12
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/arm/dts/k3-am625-verdin-wifi-dev-u-boot.dtsi b/arch/arm/dts/k3-am625-verdin-wifi-dev-u-boot.dtsi
index 7fe7ae41543..9ecb3052740 100644
--- a/arch/arm/dts/k3-am625-verdin-wifi-dev-u-boot.dtsi
+++ b/arch/arm/dts/k3-am625-verdin-wifi-dev-u-boot.dtsi
@@ -91,6 +91,14 @@
&main_gpio0 {
bootph-all;
+
+ ctrl-sleep-moci-hog {
+ bootph-all;
+ gpio-hog;
+ gpios = <31 GPIO_ACTIVE_HIGH>;
+ line-name = "CTRL_SLEEP_MOCI#";
+ output-high;
+ };
};
/* On-module I2C - PMIC_I2C */
@@ -165,10 +173,6 @@
status = "disabled";
};
-&verdin_ctrl_sleep_moci {
- bootph-all;
-};
-
/* Verdin UART_2 */
&wkup_uart0 {
bootph-all;