12f6dd860c
Wolfram Sang pointed out that "efm32,$device" is non-standard. So use the common scheme and prefix device with "efm32-". The old compatible string is left in place until arch/arm/boot/dts/efm32* is fixed. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Mark Brown <broonie@linaro.org> Cc: stable@vger.kernel.org
35 lines
906 B
Plaintext
35 lines
906 B
Plaintext
* Energy Micro EFM32 SPI
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Required properties:
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- #address-cells: see spi-bus.txt
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- #size-cells: see spi-bus.txt
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- compatible: should be "energymicro,efm32-spi"
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- reg: Offset and length of the register set for the controller
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- interrupts: pair specifying rx and tx irq
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- clocks: phandle to the spi clock
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- cs-gpios: see spi-bus.txt
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- efm32,location: Value to write to the ROUTE register's LOCATION bitfield to configure the pinmux for the device, see datasheet for values.
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Example:
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spi1: spi@0x4000c400 { /* USART1 */
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "energymicro,efm32-spi";
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reg = <0x4000c400 0x400>;
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interrupts = <15 16>;
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clocks = <&cmu 20>;
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cs-gpios = <&gpio 51 1>; // D3
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efm32,location = <1>;
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status = "ok";
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ks8851@0 {
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compatible = "ks8851";
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spi-max-frequency = <6000000>;
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reg = <0>;
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interrupt-parent = <&boardfpga>;
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interrupts = <4>;
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status = "ok";
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};
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};
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