[RFC PATCH 3/3] arm64: dts: imx8mn-bsh-smm-s2/pro: Add pmic clock connection

From: Michael Trimarchi
Date: Sun Jun 05 2022 - 12:57:32 EST


pmic clock is connected to svns_rtc using RTC_XTALI pin so we
need to mark this clock as critical. The clock source even the
wifi/bluetooth chipset

Signed-off-by: Michael Trimarchi <michael@xxxxxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
index c11895d9d582..072d2c480f20 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn-bsh-smm-s2-common.dtsi
@@ -28,6 +28,8 @@ usdhc2_pwrseq: usdhc2-pwrseq {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usdhc2_pwrseq>;
reset-gpios = <&gpio4 27 GPIO_ACTIVE_LOW>;
+ clocks = <&bd71847 0>;
+ clock-names = "ext_clock";
};
};

@@ -92,6 +94,7 @@ bd71847: pmic@4b {
rohm,reset-snvs-powered;

#clock-cells = <0>;
+ clock-critical = <1>;
clocks = <&osc_32k 0>;
clock-output-names = "clk-32k-out";

@@ -235,6 +238,8 @@ bluetooth {
shutdown-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
device-wakeup-gpios = <&gpio1 18 GPIO_ACTIVE_HIGH>;
host-wakeup-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
+ clocks = <&bd71847 0>;
+ clock-names = "lpo";
max-speed = <3000000>;
};
};
--
2.25.1