diff options
| author | Vinod Koul <vkoul@kernel.org> | 2022-04-21 13:04:38 +0530 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2022-04-23 10:22:53 -0500 |
| commit | cb29e7106d4ee7bc3860fc65d28b6d7d0b71c0f8 (patch) | |
| tree | 1b0c895390c0ef2ebd9ec9db8ffc164e30069319 /arch/arm64/boot/dts/qcom | |
| parent | 1eae95fb1d696968ca72be3ac8e0d62bb4d8da42 (diff) | |
| download | linux-cb29e7106d4ee7bc3860fc65d28b6d7d0b71c0f8.tar.bz2 | |
arm64: dts: qcom: db845c: Add support for MCP2517FD
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
Diffstat (limited to 'arch/arm64/boot/dts/qcom')
| -rw-r--r-- | arch/arm64/boot/dts/qcom/sdm845-db845c.dts | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts index 9206efa9d6d2..194ebeb3259c 100644 --- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts +++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts @@ -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; + }; +}; |