[PATCH] ARM: dts: socfpga: remove syscon compatible string for sysmgr node

[niravkumar.l.rabara@intel.com]

From: Niravkumar L Rabara <niravkumar.l.rabara@intel.com>

The SoCFPGA System Manager(sysmgr) dt bindings do not use the syscon
compitible, nor does the Linux system manager driver rely on it.
Remove "syscon" for Arria5, Arria10 and Cyclon5 sysmgr node and fixed
dtbs_check warnings like:

socfpga_arria5_socdk.dtb: sysmgr@ffd08000: compatible: 'oneOf' conditional failed, one must be fixed:
   ['altr,sys-mgr', 'syscon'] is too long
   'altr,sys-mgr-s10' was expected
   'altr,sys-mgr' was expected
   from schema $id: http://devicetree.org/schemas/soc/altera/altr,sys-mgr.yaml#

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202501102323.Xnte2yhi-lkp@intel.com/
Signed-off-by: Niravkumar L Rabara <niravkumar.l.rabara@intel.com>
---
 arch/arm/boot/dts/intel/socfpga/socfpga.dtsi         | 2 +-
 arch/arm/boot/dts/intel/socfpga/socfpga_arria10.dtsi | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/intel/socfpga/socfpga.dtsi b/arch/arm/boot/dts/intel/socfpga/socfpga.dtsi
index 35be14150f41..f124fb72e260 100644
--- a/arch/arm/boot/dts/intel/socfpga/socfpga.dtsi
+++ b/arch/arm/boot/dts/intel/socfpga/socfpga.dtsi
@@ -853,7 +853,7 @@ spi1: spi@fff01000 {
 		};
 
 		sysmgr: sysmgr@ffd08000 {
-			compatible = "altr,sys-mgr", "syscon";
+			compatible = "altr,sys-mgr";
 			reg = <0xffd08000 0x4000>;
 		};
 
diff --git a/arch/arm/boot/dts/intel/socfpga/socfpga_arria10.dtsi b/arch/arm/boot/dts/intel/socfpga/socfpga_arria10.dtsi
index 6b6e77596ffa..015120fb4b02 100644
--- a/arch/arm/boot/dts/intel/socfpga/socfpga_arria10.dtsi
+++ b/arch/arm/boot/dts/intel/socfpga/socfpga_arria10.dtsi
@@ -792,7 +792,7 @@ scu: snoop-control-unit@ffffc000 {
 		};
 
 		sysmgr: sysmgr@ffd06000 {
-			compatible = "altr,sys-mgr", "syscon";
+			compatible = "altr,sys-mgr";
 			reg = <0xffd06000 0x300>;
 			cpu1-start-addr = <0xffd06230>;
 		};
-- 
2.25.1