55     if (plat == NULL) {  in mraa_spi_init()
63     if (plat->spi_bus_count == 0) {  in mraa_spi_init()
67     if (plat->spi_bus_count == 1) {  in mraa_spi_init()
68         bus = plat->def_spi_bus;  in mraa_spi_init()
70     if (bus >= plat->spi_bus_count) {  in mraa_spi_init()
74     if (plat->adv_func->spi_init_pre != NULL) {  in mraa_spi_init()
75         if (plat->adv_func->spi_init_pre(bus) != MRAA_SUCCESS) {  in mraa_spi_init()
80     if (!plat->no_bus_mux) {  in mraa_spi_init()
81         int pos = plat->spi_bus[bus].sclk;  in mraa_spi_init()
82         if (plat->pins[pos].spi.mux_total > 0) {  in mraa_spi_init()
83             if (mraa_setup_mux_mapped(plat->pins[pos].spi) != MRAA_SUCCESS) {  in mraa_spi_init()
89         pos = plat->spi_bus[bus].mosi;  in mraa_spi_init()
90         if (plat->pins[pos].spi.mux_total > 0) {  in mraa_spi_init()
91             if (mraa_setup_mux_mapped(plat->pins[pos].spi) != MRAA_SUCCESS) {  in mraa_spi_init()
97         pos = plat->spi_bus[bus].miso;  in mraa_spi_init()
98         if (plat->pins[pos].spi.mux_total > 0) {  in mraa_spi_init()
99             if (mraa_setup_mux_mapped(plat->pins[pos].spi) != MRAA_SUCCESS) {  in mraa_spi_init()
105         pos = plat->spi_bus[bus].cs;  in mraa_spi_init()
106         if (plat->pins[pos].spi.mux_total > 0) {  in mraa_spi_init()
107             if (mraa_setup_mux_mapped(plat->pins[pos].spi) != MRAA_SUCCESS) {  in mraa_spi_init()
113     mraa_spi_context dev = mraa_spi_init_raw(plat->spi_bus[bus].bus_id, plat->spi_bus[bus].slave_s);  in mraa_spi_init()
115     if (plat->adv_func->spi_init_post != NULL) {  in mraa_spi_init()
116         mraa_result_t ret = plat->adv_func->spi_init_post(dev);  in mraa_spi_init()
129     mraa_spi_context dev = mraa_spi_init_internal(plat == NULL ? NULL : plat->adv_func);  in mraa_spi_init_raw()