arm64: dts: exynos: gs101-pixel-common: add main PMIC node

On Pixel 6 (and Pro), a Samsung S2MPG10 is used as main PMIC, which
contains the following functional blocks:
    * common / speedy interface
    * regulators
    * 3 clock outputs
    * RTC
    * power meters
    * GPIO interfaces

This change enables the PMIC itself and the RTC. We're still working on
the remaining parts or waiting for bindings to be merged, hence only a
small subset of the functional is being enabled.

The regulators fall into the same category (still being finalised), but
since the binding requires a 'regulators' node, an empty node is being
added to avoid validation errors at this stage.

Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20250627-gs101-reboot3-v1-2-c3ae49657b1f@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

diff --git a/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi b/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi
index cd8e1b8a10b111190b984e104f749d04514d0449..c1b51f4cfb8c174852b44690f84ed1aa0b4057c2 100644 (file)
--- a/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi
+++ b/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi
@@ -100,6 +100,19 @@
        };
 };
 
+&acpm_ipc {
+       pmic {
+               compatible = "samsung,s2mpg10-pmic";
+               interrupts-extended = <&gpa0 6 IRQ_TYPE_LEVEL_LOW>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&pmic_int>;
+               wakeup-source;
+
+               regulators {
+               };
+       };
+};
+
 &ext_24_5m {
        clock-frequency = <24576000>;
 };
@@ -290,6 +303,12 @@
 };
 
 &pinctrl_gpio_alive {
+       pmic_int: pmic-int-pins {
+               samsung,pins = "gpa0-6";
+               samsung,pin-function = <GS101_PIN_FUNC_EINT>;
+               samsung,pin-pud = <GS101_PIN_PULL_NONE>;
+       };
+
        key_power: key-power-pins {
                samsung,pins = "gpa10-1";
                samsung,pin-function = <GS101_PIN_FUNC_EINT>;