35 	void (*cs_control)(struct spi_device *spi, bool on);
63 static int mpc52xx_psc_spi_transfer_setup(struct spi_device *spi,  in mpc52xx_psc_spi_transfer_setup()  argument
66 	struct mpc52xx_psc_spi_cs *cs = spi->controller_state;  in mpc52xx_psc_spi_transfer_setup()
69 			? t->speed_hz : spi->max_speed_hz;  in mpc52xx_psc_spi_transfer_setup()
71 			? t->bits_per_word : spi->bits_per_word;  in mpc52xx_psc_spi_transfer_setup()
76 static void mpc52xx_psc_spi_activate_cs(struct spi_device *spi)  in mpc52xx_psc_spi_activate_cs()  argument
78 	struct mpc52xx_psc_spi_cs *cs = spi->controller_state;  in mpc52xx_psc_spi_activate_cs()
79 	struct mpc52xx_psc_spi *mps = spi_master_get_devdata(spi->master);  in mpc52xx_psc_spi_activate_cs()
87 	if (spi->mode & SPI_CPHA)  in mpc52xx_psc_spi_activate_cs()
91 	if (spi->mode & SPI_CPOL)  in mpc52xx_psc_spi_activate_cs()
96 	if (spi->mode & SPI_LSB_FIRST)  in mpc52xx_psc_spi_activate_cs()
116 		mps->cs_control(spi, (spi->mode & SPI_CS_HIGH) ? 1 : 0);  in mpc52xx_psc_spi_activate_cs()
119 static void mpc52xx_psc_spi_deactivate_cs(struct spi_device *spi)  in mpc52xx_psc_spi_deactivate_cs()  argument
121 	struct mpc52xx_psc_spi *mps = spi_master_get_devdata(spi->master);  in mpc52xx_psc_spi_deactivate_cs()
124 		mps->cs_control(spi, (spi->mode & SPI_CS_HIGH) ? 0 : 1);  in mpc52xx_psc_spi_deactivate_cs()
131 static int mpc52xx_psc_spi_transfer_rxtx(struct spi_device *spi,  in mpc52xx_psc_spi_transfer_rxtx()  argument
134 	struct mpc52xx_psc_spi *mps = spi_master_get_devdata(spi->master);  in mpc52xx_psc_spi_transfer_rxtx()
161 		dev_dbg(&spi->dev, "send %d bytes...\n", send_at_once);  in mpc52xx_psc_spi_transfer_rxtx()
188 		dev_dbg(&spi->dev, "%d bytes received\n", recv_at_once);  in mpc52xx_psc_spi_transfer_rxtx()
214 		struct spi_device *spi;  in mpc52xx_psc_spi_work()  local
223 		spi = m->spi;  in mpc52xx_psc_spi_work()
228 				status = mpc52xx_psc_spi_transfer_setup(spi, t);  in mpc52xx_psc_spi_work()
234 				mpc52xx_psc_spi_activate_cs(spi);  in mpc52xx_psc_spi_work()
237 			status = mpc52xx_psc_spi_transfer_rxtx(spi, t);  in mpc52xx_psc_spi_work()
246 				mpc52xx_psc_spi_deactivate_cs(spi);  in mpc52xx_psc_spi_work()
254 			mpc52xx_psc_spi_deactivate_cs(spi);  in mpc52xx_psc_spi_work()
256 		mpc52xx_psc_spi_transfer_setup(spi, NULL);  in mpc52xx_psc_spi_work()
264 static int mpc52xx_psc_spi_setup(struct spi_device *spi)  in mpc52xx_psc_spi_setup()  argument
266 	struct mpc52xx_psc_spi *mps = spi_master_get_devdata(spi->master);  in mpc52xx_psc_spi_setup()
267 	struct mpc52xx_psc_spi_cs *cs = spi->controller_state;  in mpc52xx_psc_spi_setup()
270 	if (spi->bits_per_word%8)  in mpc52xx_psc_spi_setup()
277 		spi->controller_state = cs;  in mpc52xx_psc_spi_setup()
280 	cs->bits_per_word = spi->bits_per_word;  in mpc52xx_psc_spi_setup()
281 	cs->speed_hz = spi->max_speed_hz;  in mpc52xx_psc_spi_setup()
285 		mpc52xx_psc_spi_deactivate_cs(spi);  in mpc52xx_psc_spi_setup()
291 static int mpc52xx_psc_spi_transfer(struct spi_device *spi,  in mpc52xx_psc_spi_transfer()  argument
294 	struct mpc52xx_psc_spi *mps = spi_master_get_devdata(spi->master);  in mpc52xx_psc_spi_transfer()
308 static void mpc52xx_psc_spi_cleanup(struct spi_device *spi)  in mpc52xx_psc_spi_cleanup()  argument
310 	kfree(spi->controller_state);  in mpc52xx_psc_spi_cleanup()