Merge pull request #266 from vdadhani/qcs6490-spi-can

QCS6490 spi can support

Author: sgaud-quic

Documentation/devicetree/bindings/net/can/microchip,mcp251xfd.yaml

@@ -49,6 +49,17 @@ properties:
       Must be half or less of "clocks" frequency.
     maximum: 20000000
 
+  gpio-controller: true
+
+  "#gpio-cells":
+    const: 2
+
+patternProperties:
+  "^.+-hog(-[0-9]+)?$":
+    type: object
+    required:
+      - gpio-hog
+
 required:
   - compatible
   - reg

arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts

@@ -44,6 +44,14 @@
 		stdout-path = "serial0:115200n8";
 	};
 
+	clocks {
+		mcp2518fd_osc: can-clk {
+			compatible = "fixed-clock";
+			clock-frequency = <40000000>;
+			#clock-cells = <0>;
+		};
+	};
+
 	dp-connector {
 		compatible = "dp-connector";
 		label = "DP";
@@ -1357,6 +1365,28 @@
 	};
 };
 
+&spi3 {
+	status = "okay";
+
+	can@0 {
+		compatible = "microchip,mcp2518fd";
+		reg = <0>;
+		interrupts-extended = <&tlmm 7 IRQ_TYPE_LEVEL_LOW>;
+		clocks = <&mcp2518fd_osc>;
+		spi-max-frequency = <10000000>;
+		vdd-supply = <&vreg_l11c_2p8>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		gpio0-hog {
+			gpio-hog;
+			gpios = <0 GPIO_ACTIVE_LOW>;
+			output-high;
+			line-name = "mcp251xfd-gpio0";
+		};
+	};
+};
+
 &swr2 {
 	status = "okay";
 

arch/arm64/configs/prune.config

@@ -98,7 +98,6 @@
 # CONFIG_DP83TD510_PHY is not set
 # CONFIG_VITESSE_PHY is not set
 # CONFIG_CAN_FLEXCAN is not set
-# CONFIG_CAN_MCP251XFD is not set
 # CONFIG_BRCMFMAC is not set
 # CONFIG_MWIFIEX is not set
 # CONFIG_MWIFIEX_SDIO is not set

drivers/net/can/spi/mcp251xfd/Kconfig

@@ -5,6 +5,7 @@ config CAN_MCP251XFD
 	select CAN_RX_OFFLOAD
 	select REGMAP
 	select WANT_DEV_COREDUMP
+	select GPIOLIB
 	help
 	  Driver for the Microchip MCP251XFD SPI FD-CAN controller
 	  family.