[RFC PATCH 2/2] arm64: dts: imx8mm-evk: mark 32k pmic clock as always-on

[Marco Felsch]

This clock is critical for the system since it supplies the 32k SoC
clock. Unfortunately the imx8mm.dtsi uses a fixed clock provider for the
32k SoC clock and not this one. If it would use this clock we would add
a cycle-dependency since the pmic driver depends on the i2c driver which
depends on the clock driver. Therefore use the new "clocks-always-on"
macro to mark the clock as critical, so it is never turned off by the
kernel.

Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
index 7d6317d95b13..0e950ef61900 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi
@@ -195,6 +195,7 @@ pmic@4b {
 		#clock-cells = <0>;
 		clocks = <&osc_32k 0>;
 		clock-output-names = "clk-32k-out";
+		clocks-always-on = "clk-32k-out";
 
 		regulators {
 			buck1_reg: BUCK1 {
-- 
2.30.2