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: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/arm/boot/dts/imx6qdl-apalis.dtsi b/arch/arm/boot/dts/imx6qdl-apalis.dtsi
index 7c17b91f09655837bf968af963a552ef840bf261..dc170a68c42f6989481f7523846fb6164ffa7bb1 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl-apalis.dtsi
+++ b/arch/arm/boot/dts/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 {