ARM: dts: imx6qdl-apalis: Fix poweroff on Apalis iMX6

commit 83964a29379cb08929a39172780a4c2992bc7c93 upstream.

The current solution for powering off the Apalis iMX6 is not functioning
as intended. To resolve this, it is necessary to power off the
vgen2_reg, which will also set the POWER_ENABLE_MOCI signal to a low
state. This ensures the carrier board is properly informed to initiate
its power-off sequence.

The new solution uses the regulator-poweroff driver, which will power
off the regulator during a system shutdown.

Cc: <stable@vger.kernel.org>
Fixes: 4eb56e26f92e ("ARM: dts: imx6q-apalis: Command pmic to standby for poweroff")
Signed-off-by: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi
index dcb4f6a32f80926f5f5f58492196b78c8c98bedb..f492075870ed5ff1bc7e64cdbb3eac532b0e18c6 100644 (file)
--- a/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-apalis.dtsi
@@ -101,6 +101,11 @@
                };
        };
 
+       poweroff {
+               compatible = "regulator-poweroff";
+               cpu-supply = <&vgen2_reg>;
+       };
+
        reg_module_3v3: regulator-module-3v3 {
                compatible = "regulator-fixed";
                regulator-always-on;
@@ -220,10 +225,6 @@
        status = "disabled";
 };
 
-&clks {
-       fsl,pmic-stby-poweroff;
-};
-
 /* Apalis SPI1 */
 &ecspi1 {
        cs-gpios = <&gpio5 25 GPIO_ACTIVE_LOW>;
@@ -511,7 +512,6 @@
 
        pmic: pmic@8 {
                compatible = "fsl,pfuze100";
-               fsl,pmic-stby-poweroff;
                reg = <0x08>;
 
                regulators {