diff options
Diffstat (limited to 'recipes-kernel/linux/linux-toradex-upstream-6.6/0001-arm64-dts-ti-k3-am62-verdin-replace-sleep-moci-ho.patch')
| -rw-r--r-- | recipes-kernel/linux/linux-toradex-upstream-6.6/0001-arm64-dts-ti-k3-am62-verdin-replace-sleep-moci-ho.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/recipes-kernel/linux/linux-toradex-upstream-6.6/0001-arm64-dts-ti-k3-am62-verdin-replace-sleep-moci-ho.patch b/recipes-kernel/linux/linux-toradex-upstream-6.6/0001-arm64-dts-ti-k3-am62-verdin-replace-sleep-moci-ho.patch new file mode 100644 index 0000000..b00c911 --- /dev/null +++ b/recipes-kernel/linux/linux-toradex-upstream-6.6/0001-arm64-dts-ti-k3-am62-verdin-replace-sleep-moci-ho.patch @@ -0,0 +1,67 @@ +From 4f65d10d84e26e48818e8c16b604fcdcd6b9f2a3 Mon Sep 17 00:00:00 2001 +From: Stefan Eichenberger <stefan.eichenberger@toradex.com> +Date: Fri, 26 Jan 2024 13:55:00 +0100 +Subject: [PATCH v1 1/2] arm64: dts: ti: k3-am62-verdin: replace sleep-moci hog + with regulator + +The Verdin family has a signal called sleep-moci which can be used to +turn off peripherals on the carrier board when the SoM goes into +suspend. So far we have hogged this signal, which means the peripherals +are always on and it is not possible to add peripherals that depend on +the sleep-moci to be on. With this change, we replace the hog with a +regulator so that peripherals can add their own regulators that use the +same gpio. Carrier boards that allow peripherals to be powered off in +suspend can disable this regulator and implement their own regulator to +control the sleep-moci. + +Upstream-Status: Submitted [https://lore.kernel.org/linux-devicetree/20240301084901.16656-1-eichest@gmail.com/] +Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com> +--- + arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | 24 ++++++++++++++-------- + 1 file changed, 16 insertions(+), 8 deletions(-) + +diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi +index 6a06724b6d16..ba3b3e18a46d 100644 +--- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi ++++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi +@@ -122,6 +122,22 @@ reg_1v8_eth: regulator-1v8-eth { + vin-supply = <®_1v8>; + }; + ++ /* ++ * By default we enable CTRL_SLEEP_MOCI#, this is required to have ++ * peripherals on the carrier board powered. ++ * If more granularity or power saving is required this can be disabled ++ * in the carrier board device tree files. ++ */ ++ reg_force_sleep_moci: regulator-force-sleep-moci { ++ compatible = "regulator-fixed"; ++ enable-active-high; ++ /* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */ ++ gpio = <&main_gpio0 31 GPIO_ACTIVE_HIGH>; ++ regulator-always-on; ++ regulator-boot-on; ++ regulator-name = "CTRL_SLEEP_MOCI#"; ++ }; ++ + /* Verdin SD_1 Power Supply */ + reg_sdhc1_vmmc: regulator-sdhci1 { + compatible = "regulator-fixed"; +@@ -951,14 +967,6 @@ &main_gpio0 { + "", + "", + ""; +- +- verdin_ctrl_sleep_moci: ctrl-sleep-moci-hog { +- gpio-hog; +- /* Verdin CTRL_SLEEP_MOCI# (SODIMM 256) */ +- gpios = <31 GPIO_ACTIVE_HIGH>; +- line-name = "CTRL_SLEEP_MOCI#"; +- output-high; +- }; + }; + + &main_gpio1 { +-- +2.40.1 + |