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From:   Vinod Koul <vkoul@kernel.org>
To:     Bjorn Andersson <bjorn.andersson@linaro.org>
Cc:     linux-arm-msm@vger.kernel.org, Vinod Koul <vkoul@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzk+dt@kernel.org>,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
        Manivannan Sadhasivam <mani@kernel.org>
Subject: [PATCH] arm64: dts: qcom: db845c: Add support for MCP2517FD
Date:   Mon, 18 Apr 2022 18:28:41 +0530
Message-Id: <20220418125841.1409738-1-vkoul@kernel.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

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

Signed-off-by: Vinod Koul <vkoul@kernel.org>
---
 arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
index 28fe45c5d516..5179f8ddb060 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
@@ -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 +753,22 @@ codec {
 	};
 };
 
+&spi0 {
+	/* On Low speed expansion */
+	status = "okay";
+
+	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>;
+		status = "okay";
+	};
+};
+
 &spi2 {
 	/* On Low speed expansion */
 	label = "LS-SPI0";
-- 
2.34.1