59 	void (*cs_control)(struct spi_device *spi, bool on);
83 static int mpc512x_psc_spi_transfer_setup(struct spi_device *spi,  in mpc512x_psc_spi_transfer_setup()  argument
86 	struct mpc512x_psc_spi_cs *cs = spi->controller_state;  in mpc512x_psc_spi_transfer_setup()
89 	    ? t->speed_hz : spi->max_speed_hz;  in mpc512x_psc_spi_transfer_setup()
91 	    ? t->bits_per_word : spi->bits_per_word;  in mpc512x_psc_spi_transfer_setup()
96 static void mpc512x_psc_spi_activate_cs(struct spi_device *spi)  in mpc512x_psc_spi_activate_cs()  argument
98 	struct mpc512x_psc_spi_cs *cs = spi->controller_state;  in mpc512x_psc_spi_activate_cs()
99 	struct mpc512x_psc_spi *mps = spi_master_get_devdata(spi->master);  in mpc512x_psc_spi_activate_cs()
108 	if (spi->mode & SPI_CPHA)  in mpc512x_psc_spi_activate_cs()
113 	if (spi->mode & SPI_CPOL)  in mpc512x_psc_spi_activate_cs()
118 	if (spi->mode & SPI_LSB_FIRST)  in mpc512x_psc_spi_activate_cs()
135 	if (mps->cs_control && gpio_is_valid(spi->cs_gpio))  in mpc512x_psc_spi_activate_cs()
136 		mps->cs_control(spi, (spi->mode & SPI_CS_HIGH) ? 1 : 0);  in mpc512x_psc_spi_activate_cs()
139 static void mpc512x_psc_spi_deactivate_cs(struct spi_device *spi)  in mpc512x_psc_spi_deactivate_cs()  argument
141 	struct mpc512x_psc_spi *mps = spi_master_get_devdata(spi->master);  in mpc512x_psc_spi_deactivate_cs()
143 	if (mps->cs_control && gpio_is_valid(spi->cs_gpio))  in mpc512x_psc_spi_deactivate_cs()
144 		mps->cs_control(spi, (spi->mode & SPI_CS_HIGH) ? 0 : 1);  in mpc512x_psc_spi_deactivate_cs()
153 static int mpc512x_psc_spi_transfer_rxtx(struct spi_device *spi,  in mpc512x_psc_spi_transfer_rxtx()  argument
156 	struct mpc512x_psc_spi *mps = spi_master_get_devdata(spi->master);  in mpc512x_psc_spi_transfer_rxtx()
274 			dev_warn(&spi->dev,  in mpc512x_psc_spi_transfer_rxtx()
296 	struct spi_device *spi;  in mpc512x_psc_spi_msg_xfer()  local
301 	spi = m->spi;  in mpc512x_psc_spi_msg_xfer()
305 		status = mpc512x_psc_spi_transfer_setup(spi, t);  in mpc512x_psc_spi_msg_xfer()
310 			mpc512x_psc_spi_activate_cs(spi);  in mpc512x_psc_spi_msg_xfer()
313 		status = mpc512x_psc_spi_transfer_rxtx(spi, t);  in mpc512x_psc_spi_msg_xfer()
322 			mpc512x_psc_spi_deactivate_cs(spi);  in mpc512x_psc_spi_msg_xfer()
330 		mpc512x_psc_spi_deactivate_cs(spi);  in mpc512x_psc_spi_msg_xfer()
332 	mpc512x_psc_spi_transfer_setup(spi, NULL);  in mpc512x_psc_spi_msg_xfer()
368 static int mpc512x_psc_spi_setup(struct spi_device *spi)  in mpc512x_psc_spi_setup()  argument
370 	struct mpc512x_psc_spi_cs *cs = spi->controller_state;  in mpc512x_psc_spi_setup()
373 	if (spi->bits_per_word % 8)  in mpc512x_psc_spi_setup()
381 		if (gpio_is_valid(spi->cs_gpio)) {  in mpc512x_psc_spi_setup()
382 			ret = gpio_request(spi->cs_gpio, dev_name(&spi->dev));  in mpc512x_psc_spi_setup()
384 				dev_err(&spi->dev, "can't get CS gpio: %d\n",  in mpc512x_psc_spi_setup()
389 			gpio_direction_output(spi->cs_gpio,  in mpc512x_psc_spi_setup()
390 					spi->mode & SPI_CS_HIGH ? 0 : 1);  in mpc512x_psc_spi_setup()
393 		spi->controller_state = cs;  in mpc512x_psc_spi_setup()
396 	cs->bits_per_word = spi->bits_per_word;  in mpc512x_psc_spi_setup()
397 	cs->speed_hz = spi->max_speed_hz;  in mpc512x_psc_spi_setup()
402 static void mpc512x_psc_spi_cleanup(struct spi_device *spi)  in mpc512x_psc_spi_cleanup()  argument
404 	if (gpio_is_valid(spi->cs_gpio))  in mpc512x_psc_spi_cleanup()
405 		gpio_free(spi->cs_gpio);  in mpc512x_psc_spi_cleanup()
406 	kfree(spi->controller_state);  in mpc512x_psc_spi_cleanup()
484 static void mpc512x_spi_cs_control(struct spi_device *spi, bool onoff)  in mpc512x_spi_cs_control()  argument
486 	gpio_set_value(spi->cs_gpio, onoff);  in mpc512x_spi_cs_control()