arm64: dts: imx8mm-var-som: Add 32.768 kHz clock to PMIC

The ROHM BD71847 PMIC has a 32.768 kHz clock.  Adding necessary parent
allows to probe the bd718x7 clock driver fixing boot errors:

    bd718xx-clk bd71847-clk.1.auto: No parent clk found
    bd718xx-clk: probe of bd71847-clk.1.auto failed with error -22

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
index c371cb3..9c6e912 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-var-som.dtsi
@@ -140,6 +140,10 @@
                interrupts = <8 GPIO_ACTIVE_LOW>;
                rohm,reset-snvs-powered;
 
+               #clock-cells = <0>;
+               clocks = <&osc_32k 0>;
+               clock-output-names = "clk-32k-out";
+
                regulators {
                        buck1_reg: BUCK1 {
                                regulator-name = "buck1";