spi: dw: Add SoC-specific compatible strings

This adds SoC-specific compatible strings to all users of the designware
spi device. This will allow for the correct driver to be selected for each
device. Where it is publicly documented, a compatible string for the
specific device version has also been added. Devices without
publicly-documented device versions include MSCC SoCs, and Arc Socs. All
compatible strings except those for SoCFPGAs and some of the versioned
strings have been taken from Linux.

Since SSI_MAX_XFER_SIZE is determined at runtime, this is not strictly
necessary. However, it is a good cleanup and brings things closer to Linux.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Tested-by Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>

9 files changed, 28 insertions, 17 deletions

diff --git a/arch/arc/dts/axs10x_mb.dtsi b/arch/arc/dts/axs10x_mb.dtsi
index daf7ca6..d4ff4f7 100644
--- a/arch/arc/dts/axs10x_mb.dtsi
+++ b/arch/arc/dts/axs10x_mb.dtsi
@@ -90,7 +90,7 @@
 		};
 
 		spi0: spi@0 {
-			compatible = "snps,dw-apb-ssi";
+			compatible = "snps,axs10x-spi", "snps,dw-apb-ssi";
 			reg = <0x0 0x100>;
 			#address-cells = <1>;
 			#size-cells = <0>;
diff --git a/arch/arc/dts/hsdk-common.dtsi b/arch/arc/dts/hsdk-common.dtsi
index a4b348b..3fc82e5 100644
--- a/arch/arc/dts/hsdk-common.dtsi
+++ b/arch/arc/dts/hsdk-common.dtsi
@@ -128,7 +128,7 @@
 	};
 
 	spi0: spi@f0020000 {
-		compatible = "snps,dw-apb-ssi";
+		compatible = "snps,hsdk-spi", "snps,dw-apb-ssi";
 		reg = <0xf0020000 0x1000>;
 		#address-cells = <1>;
 		#size-cells = <0>;
diff --git a/arch/arm/dts/socfpga.dtsi b/arch/arm/dts/socfpga.dtsi
index eda558f..ff79d33 100644
--- a/arch/arm/dts/socfpga.dtsi
+++ b/arch/arm/dts/socfpga.dtsi
@@ -804,7 +804,8 @@
 		};
 
 		spi0: spi@fff00000 {
-			compatible = "snps,dw-apb-ssi";
+			compatible = "altr,socfpga-spi", "snps,dw-apb-ssi-3.20",
+				     "snps,dw-apb-ssi";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0xfff00000 0x1000>;
@@ -816,7 +817,8 @@
 		};
 
 		spi1: spi@fff01000 {
-			compatible = "snps,dw-apb-ssi";
+			compatible = "altr,socfpga-spi", "snps,dw-apb-ssi-3.20",
+				     "snps,dw-apb-ssi";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0xfff01000 0x1000>;
diff --git a/arch/arm/dts/socfpga_agilex.dtsi b/arch/arm/dts/socfpga_agilex.dtsi
index 179b4d5..c3ead2d 100644
--- a/arch/arm/dts/socfpga_agilex.dtsi
+++ b/arch/arm/dts/socfpga_agilex.dtsi
@@ -366,7 +366,8 @@
 		};
 
 		spi0: spi@ffda4000 {
-			compatible = "snps,dw-apb-ssi";
+			compatible = "intel,agilex-spi",
+				     "snps,dw-apb-ssi-4.00a", "snps,dw-apb-ssi";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0xffda4000 0x1000>;
@@ -379,7 +380,8 @@
 		};
 
 		spi1: spi@ffda5000 {
-			compatible = "snps,dw-apb-ssi";
+			compatible = "intel,agilex-spi",
+				     "snps,dw-apb-ssi-4.00a", "snps,dw-apb-ssi";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0xffda5000 0x1000>;
diff --git a/arch/arm/dts/socfpga_arria10.dtsi b/arch/arm/dts/socfpga_arria10.dtsi
index a598c75..bab34ab 100644
--- a/arch/arm/dts/socfpga_arria10.dtsi
+++ b/arch/arm/dts/socfpga_arria10.dtsi
@@ -604,7 +604,8 @@
 		};
 
 		spi0: spi@ffda4000 {
-			compatible = "snps,dw-apb-ssi";
+			compatible = "altr,socfpga-arria10-spi",
+				     "snps,dw-apb-ssi-3.22a", "snps,dw-apb-ssi";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0xffda4000 0x100>;
@@ -617,7 +618,8 @@
 		};
 
 		spi1: spi@ffda5000 {
-			compatible = "snps,dw-apb-ssi";
+			compatible = "altr,socfpga-arria10-spi",
+				     "snps,dw-apb-ssi-3.22a", "snps,dw-apb-ssi";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0xffda5000 0x100>;
diff --git a/arch/arm/dts/socfpga_stratix10.dtsi b/arch/arm/dts/socfpga_stratix10.dtsi
index cb799bc..7a77772 100755
--- a/arch/arm/dts/socfpga_stratix10.dtsi
+++ b/arch/arm/dts/socfpga_stratix10.dtsi
@@ -268,7 +268,8 @@
 		 };
 
 		spi0: spi@ffda4000 {
-			compatible = "snps,dw-apb-ssi";
+			compatible = "intel,stratix10-spi",
+				     "snps,dw-apb-ssi-4.00a", "snps,dw-apb-ssi";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0xffda4000 0x1000>;
@@ -281,7 +282,8 @@
 		};
 
 		spi1: spi@ffda5000 {
-			compatible = "snps,dw-apb-ssi";
+			compatible = "intel,stratix10-spi",
+				     "snps,dw-apb-ssi-4.00a", "snps,dw-apb-ssi";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0xffda5000 0x1000>;
diff --git a/arch/mips/dts/mscc,jr2.dtsi b/arch/mips/dts/mscc,jr2.dtsi
index 7f5a96f..c44e9a2 100644
--- a/arch/mips/dts/mscc,jr2.dtsi
+++ b/arch/mips/dts/mscc,jr2.dtsi
@@ -94,7 +94,7 @@
 		spi0: spi-master@101000 {
 			#address-cells = <1>;
 			#size-cells = <0>;
-			compatible = "snps,dw-apb-ssi";
+			compatible = "mscc,jaguar2-spi", "snps,dw-apb-ssi";
 			reg = <0x101000 0x40>;
 			num-chipselect = <4>;
 			bus-num = <0>;
diff --git a/arch/mips/dts/mscc,ocelot.dtsi b/arch/mips/dts/mscc,ocelot.dtsi
index 9a187b6..aeb4bf8 100644
--- a/arch/mips/dts/mscc,ocelot.dtsi
+++ b/arch/mips/dts/mscc,ocelot.dtsi
@@ -100,7 +100,7 @@
 		spi0: spi-master@101000 {
 			#address-cells = <1>;
 			#size-cells = <0>;
-			compatible = "snps,dw-apb-ssi";
+			compatible = "mscc,ocelot-spi", "snps,dw-apb-ssi";
 			reg = <0x101000 0x40>;
 			num-chipselect = <4>;
 			bus-num = <0>;
diff --git a/arch/riscv/dts/k210.dtsi b/arch/riscv/dts/k210.dtsi
index 81ef8ca..fce98b0 100644
--- a/arch/riscv/dts/k210.dtsi
+++ b/arch/riscv/dts/k210.dtsi
@@ -284,7 +284,8 @@
 			};
 
 			spi2: spi@50240000 {
-				compatible = "kendryte,k120-spislave",
+				compatible = "canaan,kendryte-k210-spi",
+					     "snps,dw-apb-ssi-4.01",
 					     "snps,dw-apb-ssi";
 				spi-slave;
 				reg = <0x50240000 0x100>;
@@ -557,7 +558,8 @@
 			spi0: spi@52000000 {
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "kendryte,k210-spi",
+				compatible = "canaan,kendryte-k210-spi",
+					     "snps,dw-apb-ssi-4.01",
 					     "snps,dw-apb-ssi";
 				reg = <0x52000000 0x100>;
 				interrupts = <1>;
@@ -573,7 +575,8 @@
 			spi1: spi@53000000 {
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "kendryte,k210-spi",
+				compatible = "canaan,kendryte-k210-spi",
+					     "snps,dw-apb-ssi-4.01",
 					     "snps,dw-apb-ssi";
 				reg = <0x53000000 0x100>;
 				interrupts = <2>;
@@ -589,8 +592,8 @@
 			spi3: spi@54000000 {
 				#address-cells = <1>;
 				#size-cells = <0>;
-				compatible = "kendryte,k210-spi",
-					     "snps,dw-apb-ssi";
+				compatible = "canaan,kendryte-k210-ssi",
+					     "snps,dwc-ssi-1.01a";
 				reg = <0x54000000 0x200>;
 				interrupts = <4>;
 				clocks = <&sysclk K210_CLK_SPI3>;