Lines Matching full:spi
1 * ICP DAS LP-8841 SPI Controller for RTC
4 memory register, which acts as an SPI master device.
17 - compatible: should be "icpdas,lp8841-spi-rtc"
21 Requirements to SPI slave nodes:
25 - The spi slave node should claim the following flags which are
26 required by the spi controller.
28 - spi-3wire: The master itself has only 3 wire. It cannor work in
31 - spi-cs-high: DS-1302 has active high chip select line. The master
34 - spi-lsb-first: DS-1302 requires least significant bit first
40 spi@901c {
43 compatible = "icpdas,lp8841-spi-rtc";
49 spi-max-frequency = <500000>;
50 spi-3wire;
51 spi-lsb-first;
52 spi-cs-high;