linux-kernel - [PATCH 5.15 090/177] arm64: dts: imx8mn-ddr4-evk: Describe the 32.768 kHz PMIC clock

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Message-Id: <20220504153101.148047007@linuxfoundation.org>
Date:   Wed,  4 May 2022 18:44:43 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Fabio Estevam <festevam@...x.de>,
        Shawn Guo <shawnguo@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.15 090/177] arm64: dts: imx8mn-ddr4-evk: Describe the 32.768 kHz PMIC clock

From: Fabio Estevam <festevam@...x.de>

[ Upstream commit 0310b5aa0656a94102344f1e9ae2892e342a665d ]

The ROHM BD71847 PMIC has a 32.768 kHz clock.

Describe the PMIC clock to fix the following boot errors:

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

Based on the same fix done for imx8mm-evk as per commit
a6a355ede574 ("arm64: dts: imx8mm-evk: Add 32.768 kHz clock to PMIC")

Fixes: 3e44dd09736d ("arm64: dts: imx8mn-ddr4-evk: Add rohm,bd71847 PMIC support")
Signed-off-by: Fabio Estevam <festevam@...x.de>
Signed-off-by: Shawn Guo <shawnguo@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
index 7dfee715a2c4..d8ce217c6016 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mn-ddr4-evk.dts
@@ -59,6 +59,10 @@ pmic@4b {
 		interrupts = <3 IRQ_TYPE_LEVEL_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";
-- 
2.35.1