arm64: dts: imx8mq: 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/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
index 6a1e83922c711d16c708a6a44d778e52cc3db50b..460ff0acdc40cdae3f4a77269cfecb985f0993ea 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
@@ -574,6 +574,8 @@
                                        compatible = "fsl,sec-v4.0-pwrkey";
                                        regmap = <&snvs>;
                                        interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+                                       clocks = <&clk IMX8MQ_CLK_SNVS_ROOT>;
+                                       clock-names = "snvs-pwrkey";
                                        linux,keycode = <KEY_POWER>;
                                        wakeup-source;
                                        status = "disabled";