linux-kernel - [PATCH 06/16] arm64: dts: imx8mm-evk: Add 32.768 kHz clock to PMIC

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Date:   Mon, 24 Aug 2020 21:06:51 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Lee Jones <lee.jones@...aro.org>, Rob Herring <robh+dt@...nel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Adam Ford <aford173@...il.com>,
        Daniel Baluta <daniel.baluta@....com>,
        Anson Huang <Anson.Huang@....com>,
        Robin Gong <yibin.gong@....com>, Li Jun <jun.li@....com>,
        Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
        Han Xu <han.xu@....com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mtd@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH 06/16] arm64: dts: imx8mm-evk: Add 32.768 kHz clock to PMIC

The ROHM BD71847 PMIC has a 32.768 kHz clock.  Adding necessary parent
allows to probe the bd718x7 clock driver fixing boot errors:

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

Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
---
 arch/arm64/boot/dts/freescale/imx8mm-evk.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
index 3cb8b6bcb657..0115f07bbc9d 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mm-evk.dts
@@ -149,6 +149,10 @@
 		interrupts = <3 GPIO_ACTIVE_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";
-- 
2.17.1