Lines Matching refs:spi
11 #include <linux/spi/spi.h>
24 struct spi_device *spi;
35 spi = spi_alloc_device(master);
36 if (!spi) {
39 spi_dev_put(spi);
44 if (of_modalias_node(nc, spi->modalias,
45 sizeof(spi->modalias)) < 0) {
48 spi_dev_put(spi);
57 spi_dev_put(spi);
60 spi->chip_select = be32_to_cpup(prop);
63 if (of_find_property(nc, "spi-cpha", NULL))
64 spi->mode |= SPI_CPHA;
65 if (of_find_property(nc, "spi-cpol", NULL))
66 spi->mode |= SPI_CPOL;
67 if (of_find_property(nc, "spi-cs-high", NULL))
68 spi->mode |= SPI_CS_HIGH;
71 prop = of_get_property(nc, "spi-max-frequency", &len);
73 dev_err(&master->dev, "%s has no 'spi-max-frequency' property\n",
75 spi_dev_put(spi);
78 spi->max_speed_hz = be32_to_cpup(prop);
81 spi->irq = irq_of_parse_and_map(nc, 0);
85 spi->dev.of_node = nc;
88 request_module(spi->modalias);
89 rc = spi_add_device(spi);
93 spi_dev_put(spi);