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

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

Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220421073438.1824061-1-vkoul@kernel.org
This commit is contained in:
Vinod Koul 2022-04-21 13:04:38 +05:30 • committed by Bjorn Andersson
parent 1eae95fb1d
commit cb29e7106d
1 changed files with 32 additions and 0 deletions
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32
arch/arm64/boot/dts/qcom/sdm845-db845c.dts
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@ -28,6 +28,13 @@
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 @@
};
};
&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 @@
};
};
};
/* PINCTRL - additions to nodes defined in sdm845.dtsi */
&qup_spi0_default {
config {
drive-strength = <6>;
bias-disable;
};
};