Commit cb29e710 authored by Vinod Koul's avatar Vinod Koul Committed by Bjorn Andersson
Browse files

arm64: dts: qcom: db845c: Add support for MCP2517FD 



Add support for onboard MCP2517FD SPI CAN transceiver attached to
SPI0 of RB3.

Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
Reviewed-by: default avatarManivannan Sadhasivam <mani@kernel.org>
Acked-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220421073438.1824061-1-vkoul@kernel.org
parent 1eae95fb

arch/arm64/boot/dts/qcom/sdm845-db845c.dts

+32 −0
Original line number Diff line number Diff line
@@ -28,6 +28,13 @@ chosen { 
		stdout-path = "serial0:115200n8";

	};



	/* Fixed crystal oscillator dedicated to MCP2517FD */

	clk40M: can-clock {

		compatible = "fixed-clock";

		#clock-cells = <0>;

		clock-frequency = <40000000>;

	};



	dc12v: dc12v-regulator {

		compatible = "regulator-fixed";

		regulator-name = "DC12V";
@@ -746,6 +753,23 @@ codec { 
	};

};



&spi0 {

	status = "okay";

	pinctrl-names = "default";

	pinctrl-0 = <&qup_spi0_default>;

	cs-gpios = <&tlmm 3 GPIO_ACTIVE_LOW>;



	can@0 {

		compatible = "microchip,mcp2517fd";

		reg = <0>;

		clocks = <&clk40M>;

		interrupts-extended = <&tlmm 104 IRQ_TYPE_LEVEL_LOW>;

		spi-max-frequency = <10000000>;

		vdd-supply = <&vdc_5v>;

		xceiver-supply = <&vdc_5v>;

	};

};



&spi2 {

	/* On Low speed expansion */

	label = "LS-SPI0";
@@ -1220,3 +1244,11 @@ ov7251_ep: endpoint { 
		};

	};

};



/* PINCTRL - additions to nodes defined in sdm845.dtsi */

&qup_spi0_default {

	config {

		drive-strength = <6>;

		bias-disable;

	};

};