linux-kernel - [PATCH v2] arm64: dts: fix endianness issue of rcpm

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Message-Id: <20200929013021.46395-1-ran.wang_1@nxp.com>
Date:   Tue, 29 Sep 2020 09:30:21 +0800
From:   Ran Wang <ran.wang_1@....com>
To:     Fabio Estevam <festevam@...il.com>,
        Shawn Guo <shawnguo@...nel.org>, Li Yang <leoyang.li@....com>
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Biwen Li <biwen.li@....com>,
        Ran Wang <ran.wang_1@....com>
Subject: [PATCH v2] arm64: dts: fix endianness issue of rcpm

From: Biwen Li <biwen.li@....com>

Add little-endian property to RCPM node (for ls1028a,ls1088a,ls208xa),
otherwise RCPM driver will program hardware with incorrect setting,
causing system (such as LS1028ARDB) failed to be waked by wakeup source.

Fixes: 791c88ca5713 (“arm64: dts: ls1028a: Add ftm_alarm0 DT node”)
Fixes: f4fe3a8665495 (“arm64: dts: layerscape: add ftm_alarm0 node”)
Signed-off-by: Biwen Li <biwen.li@....com>
Signed-off-by: Ran Wang <ran.wang_1@....com>
Acked-by: Li Yang <leoyang.li@....com>
---
Change in v2:
 - Update commit message with more details
 - Add Fixes and Singed-off tags

 arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 1 +
 arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 1 +
 arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi | 1 +
 3 files changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
index 0efeb8f..651bfe1 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi
@@ -1012,6 +1012,7 @@
 			compatible = "fsl,ls1028a-rcpm", "fsl,qoriq-rcpm-2.1+";
 			reg = <0x0 0x1e34040 0x0 0x1c>;
 			#fsl,rcpm-wakeup-cells = <7>;
+			little-endian;
 		};
 
 		ftm_alarm0: timer@...0000 {
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
index 169f474..2ef812d 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
@@ -787,6 +787,7 @@
 			compatible = "fsl,ls1088a-rcpm", "fsl,qoriq-rcpm-2.1+";
 			reg = <0x0 0x1e34040 0x0 0x18>;
 			#fsl,rcpm-wakeup-cells = <6>;
+			little-endian;
 		};
 
 		ftm_alarm0: timer@...0000 {
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
index 41102da..141b3d2 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls208xa.dtsi
@@ -769,6 +769,7 @@
 			compatible = "fsl,ls208xa-rcpm", "fsl,qoriq-rcpm-2.1+";
 			reg = <0x0 0x1e34040 0x0 0x18>;
 			#fsl,rcpm-wakeup-cells = <6>;
+			little-endian;
 		};
 
 		ftm_alarm0: timer@...0000 {
-- 
2.7.4