183 	struct spi_bitbang	*bitbang;  in spi_bitbang_setup()  local
187 	bitbang = spi_master_get_devdata(spi->master);  in spi_bitbang_setup()
198 	cs->txrx_word = bitbang->txrx_word[spi->mode & (SPI_CPOL|SPI_CPHA)];  in spi_bitbang_setup()
204 	if (bitbang->setup_transfer) {  in spi_bitbang_setup()
205 		retval = bitbang->setup_transfer(spi, NULL);  in spi_bitbang_setup()
234 	struct spi_bitbang	*bitbang;  in spi_bitbang_bufs()  local
236 	bitbang = spi_master_get_devdata(spi->master);  in spi_bitbang_bufs()
237 	if (bitbang->set_line_direction) {  in spi_bitbang_bufs()
240 		err = bitbang->set_line_direction(spi, !!(t->tx_buf));  in spi_bitbang_bufs()
270 	struct spi_bitbang	*bitbang;  in spi_bitbang_prepare_hardware()  local
272 	bitbang = spi_master_get_devdata(spi);  in spi_bitbang_prepare_hardware()
274 	mutex_lock(&bitbang->lock);  in spi_bitbang_prepare_hardware()
275 	bitbang->busy = 1;  in spi_bitbang_prepare_hardware()
276 	mutex_unlock(&bitbang->lock);  in spi_bitbang_prepare_hardware()
285 	struct spi_bitbang *bitbang = spi_master_get_devdata(master);  in spi_bitbang_transfer_one()  local
288 	if (bitbang->setup_transfer) {  in spi_bitbang_transfer_one()
289 		status = bitbang->setup_transfer(spi, transfer);  in spi_bitbang_transfer_one()
295 		status = bitbang->txrx_bufs(spi, transfer);  in spi_bitbang_transfer_one()
310 	struct spi_bitbang	*bitbang;  in spi_bitbang_unprepare_hardware()  local
312 	bitbang = spi_master_get_devdata(spi);  in spi_bitbang_unprepare_hardware()
314 	mutex_lock(&bitbang->lock);  in spi_bitbang_unprepare_hardware()
315 	bitbang->busy = 0;  in spi_bitbang_unprepare_hardware()
316 	mutex_unlock(&bitbang->lock);  in spi_bitbang_unprepare_hardware()
323 	struct spi_bitbang *bitbang = spi_master_get_devdata(spi->master);  in spi_bitbang_set_cs()  local
332 	bitbang->chipselect(spi, enable ? BITBANG_CS_ACTIVE :  in spi_bitbang_set_cs()
339 int spi_bitbang_init(struct spi_bitbang *bitbang)  in spi_bitbang_init()  argument
341 	struct spi_master *master = bitbang->master;  in spi_bitbang_init()
355 	if (custom_cs && !bitbang->chipselect)  in spi_bitbang_init()
358 	mutex_init(&bitbang->lock);  in spi_bitbang_init()
361 		master->mode_bits = SPI_CPOL | SPI_CPHA | bitbang->flags;  in spi_bitbang_init()
376 	if (!bitbang->txrx_bufs) {  in spi_bitbang_init()
377 		bitbang->use_dma = 0;  in spi_bitbang_init()
378 		bitbang->txrx_bufs = spi_bitbang_bufs;  in spi_bitbang_init()
380 			if (!bitbang->setup_transfer)  in spi_bitbang_init()
381 				bitbang->setup_transfer =  in spi_bitbang_init()
420 int spi_bitbang_start(struct spi_bitbang *bitbang)  in spi_bitbang_start()  argument
422 	struct spi_master *master = bitbang->master;  in spi_bitbang_start()
425 	ret = spi_bitbang_init(bitbang);  in spi_bitbang_start()
443 void spi_bitbang_stop(struct spi_bitbang *bitbang)  in spi_bitbang_stop()  argument
445 	spi_unregister_master(bitbang->master);  in spi_bitbang_stop()