arm64: dts: imx8mm: add snvs clock to pwrkey

On i.MX8MM, the SNVS requires a clock. This is similar to the clock
bound to the SNVS RTC node, but if the SNVS RTC driver isn't enabled,
then SNVS doesn't work, and as such the pwrkey driver doesn't
work (i.e. hangs the kernel, as the clock isn't enabled).

Also see commit ec2a844ef7c1
("ARM: dts: imx7s: add snvs rtc clock")
for a similar fix.

Signed-off-by: André Draszik <git@andred.net>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index b3d0b29d7007aacb2d84c999c3542ef12d654544..970a86c724bacb204318116be6b2a18c1cfabb0b 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -455,6 +455,8 @@
                                        compatible = "fsl,sec-v4.0-pwrkey";
                                        regmap = <&snvs>;
                                        interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+                                       clocks = <&clk IMX8MM_CLK_SNVS_ROOT>;
+                                       clock-names = "snvs-pwrkey";
                                        linux,keycode = <KEY_POWER>;
                                        wakeup-source;
                                        status = "disabled";