186 	struct spi_bitbang	*bitbang;  in spi_bitbang_setup()  local
190 	bitbang = spi_master_get_devdata(spi->master);  in spi_bitbang_setup()
201 	cs->txrx_word = bitbang->txrx_word[spi->mode & (SPI_CPOL|SPI_CPHA)];  in spi_bitbang_setup()
207 	if (bitbang->setup_transfer) {  in spi_bitbang_setup()
208 		retval = bitbang->setup_transfer(spi, NULL);  in spi_bitbang_setup()
237 	struct spi_bitbang	*bitbang;  in spi_bitbang_bufs()  local
239 	bitbang = spi_master_get_devdata(spi->master);  in spi_bitbang_bufs()
240 	if (bitbang->set_line_direction) {  in spi_bitbang_bufs()
243 		err = bitbang->set_line_direction(spi, !!(t->tx_buf));  in spi_bitbang_bufs()
273 	struct spi_bitbang	*bitbang;  in spi_bitbang_prepare_hardware()  local
275 	bitbang = spi_master_get_devdata(spi);  in spi_bitbang_prepare_hardware()
277 	mutex_lock(&bitbang->lock);  in spi_bitbang_prepare_hardware()
278 	bitbang->busy = 1;  in spi_bitbang_prepare_hardware()
279 	mutex_unlock(&bitbang->lock);  in spi_bitbang_prepare_hardware()
288 	struct spi_bitbang *bitbang = spi_master_get_devdata(master);  in spi_bitbang_transfer_one()  local
291 	if (bitbang->setup_transfer) {  in spi_bitbang_transfer_one()
292 		status = bitbang->setup_transfer(spi, transfer);  in spi_bitbang_transfer_one()
298 		status = bitbang->txrx_bufs(spi, transfer);  in spi_bitbang_transfer_one()
313 	struct spi_bitbang	*bitbang;  in spi_bitbang_unprepare_hardware()  local
315 	bitbang = spi_master_get_devdata(spi);  in spi_bitbang_unprepare_hardware()
317 	mutex_lock(&bitbang->lock);  in spi_bitbang_unprepare_hardware()
318 	bitbang->busy = 0;  in spi_bitbang_unprepare_hardware()
319 	mutex_unlock(&bitbang->lock);  in spi_bitbang_unprepare_hardware()
326 	struct spi_bitbang *bitbang = spi_master_get_devdata(spi->master);  in spi_bitbang_set_cs()  local
335 	bitbang->chipselect(spi, enable ? BITBANG_CS_ACTIVE :  in spi_bitbang_set_cs()
342 int spi_bitbang_init(struct spi_bitbang *bitbang)  in spi_bitbang_init()  argument
344 	struct spi_master *master = bitbang->master;  in spi_bitbang_init()
358 	if (custom_cs && !bitbang->chipselect)  in spi_bitbang_init()
361 	mutex_init(&bitbang->lock);  in spi_bitbang_init()
364 		master->mode_bits = SPI_CPOL | SPI_CPHA | bitbang->flags;  in spi_bitbang_init()
379 	if (!bitbang->txrx_bufs) {  in spi_bitbang_init()
380 		bitbang->use_dma = 0;  in spi_bitbang_init()
381 		bitbang->txrx_bufs = spi_bitbang_bufs;  in spi_bitbang_init()
383 			if (!bitbang->setup_transfer)  in spi_bitbang_init()
384 				bitbang->setup_transfer =  in spi_bitbang_init()
423 int spi_bitbang_start(struct spi_bitbang *bitbang)  in spi_bitbang_start()  argument
425 	struct spi_master *master = bitbang->master;  in spi_bitbang_start()
428 	ret = spi_bitbang_init(bitbang);  in spi_bitbang_start()
446 void spi_bitbang_stop(struct spi_bitbang *bitbang)  in spi_bitbang_stop()  argument
448 	spi_unregister_master(bitbang->master);  in spi_bitbang_stop()