34 	void (*cs_control)(struct spi_device *spi, bool on);
57 static int mpc512x_psc_spi_transfer_setup(struct spi_device *spi,  in mpc512x_psc_spi_transfer_setup()  argument
60 	struct mpc512x_psc_spi_cs *cs = spi->controller_state;  in mpc512x_psc_spi_transfer_setup()
63 	    ? t->speed_hz : spi->max_speed_hz;  in mpc512x_psc_spi_transfer_setup()
65 	    ? t->bits_per_word : spi->bits_per_word;  in mpc512x_psc_spi_transfer_setup()
70 static void mpc512x_psc_spi_activate_cs(struct spi_device *spi)  in mpc512x_psc_spi_activate_cs()  argument
72 	struct mpc512x_psc_spi_cs *cs = spi->controller_state;  in mpc512x_psc_spi_activate_cs()
73 	struct mpc512x_psc_spi *mps = spi_master_get_devdata(spi->master);  in mpc512x_psc_spi_activate_cs()
83 	if (spi->mode & SPI_CPHA)  in mpc512x_psc_spi_activate_cs()
88 	if (spi->mode & SPI_CPOL)  in mpc512x_psc_spi_activate_cs()
93 	if (spi->mode & SPI_LSB_FIRST)  in mpc512x_psc_spi_activate_cs()
110 	if (mps->cs_control && gpio_is_valid(spi->cs_gpio))  in mpc512x_psc_spi_activate_cs()
111 		mps->cs_control(spi, (spi->mode & SPI_CS_HIGH) ? 1 : 0);  in mpc512x_psc_spi_activate_cs()
114 static void mpc512x_psc_spi_deactivate_cs(struct spi_device *spi)  in mpc512x_psc_spi_deactivate_cs()  argument
116 	struct mpc512x_psc_spi *mps = spi_master_get_devdata(spi->master);  in mpc512x_psc_spi_deactivate_cs()
118 	if (mps->cs_control && gpio_is_valid(spi->cs_gpio))  in mpc512x_psc_spi_deactivate_cs()
119 		mps->cs_control(spi, (spi->mode & SPI_CS_HIGH) ? 0 : 1);  in mpc512x_psc_spi_deactivate_cs()
128 static int mpc512x_psc_spi_transfer_rxtx(struct spi_device *spi,  in mpc512x_psc_spi_transfer_rxtx()  argument
131 	struct mpc512x_psc_spi *mps = spi_master_get_devdata(spi->master);  in mpc512x_psc_spi_transfer_rxtx()
249 			dev_warn(&spi->dev,  in mpc512x_psc_spi_transfer_rxtx()
271 	struct spi_device *spi;  in mpc512x_psc_spi_msg_xfer()  local
276 	spi = m->spi;  in mpc512x_psc_spi_msg_xfer()
281 			status = mpc512x_psc_spi_transfer_setup(spi, t);  in mpc512x_psc_spi_msg_xfer()
287 			mpc512x_psc_spi_activate_cs(spi);  in mpc512x_psc_spi_msg_xfer()
290 		status = mpc512x_psc_spi_transfer_rxtx(spi, t);  in mpc512x_psc_spi_msg_xfer()
299 			mpc512x_psc_spi_deactivate_cs(spi);  in mpc512x_psc_spi_msg_xfer()
307 		mpc512x_psc_spi_deactivate_cs(spi);  in mpc512x_psc_spi_msg_xfer()
309 	mpc512x_psc_spi_transfer_setup(spi, NULL);  in mpc512x_psc_spi_msg_xfer()
347 static int mpc512x_psc_spi_setup(struct spi_device *spi)  in mpc512x_psc_spi_setup()  argument
349 	struct mpc512x_psc_spi_cs *cs = spi->controller_state;  in mpc512x_psc_spi_setup()
352 	if (spi->bits_per_word % 8)  in mpc512x_psc_spi_setup()
360 		if (gpio_is_valid(spi->cs_gpio)) {  in mpc512x_psc_spi_setup()
361 			ret = gpio_request(spi->cs_gpio, dev_name(&spi->dev));  in mpc512x_psc_spi_setup()
363 				dev_err(&spi->dev, "can't get CS gpio: %d\n",  in mpc512x_psc_spi_setup()
368 			gpio_direction_output(spi->cs_gpio,  in mpc512x_psc_spi_setup()
369 					spi->mode & SPI_CS_HIGH ? 0 : 1);  in mpc512x_psc_spi_setup()
372 		spi->controller_state = cs;  in mpc512x_psc_spi_setup()
375 	cs->bits_per_word = spi->bits_per_word;  in mpc512x_psc_spi_setup()
376 	cs->speed_hz = spi->max_speed_hz;  in mpc512x_psc_spi_setup()
381 static void mpc512x_psc_spi_cleanup(struct spi_device *spi)  in mpc512x_psc_spi_cleanup()  argument
383 	if (gpio_is_valid(spi->cs_gpio))  in mpc512x_psc_spi_cleanup()
384 		gpio_free(spi->cs_gpio);  in mpc512x_psc_spi_cleanup()
385 	kfree(spi->controller_state);  in mpc512x_psc_spi_cleanup()
464 static void mpc512x_spi_cs_control(struct spi_device *spi, bool onoff)  in mpc512x_spi_cs_control()  argument
466 	gpio_set_value(spi->cs_gpio, onoff);  in mpc512x_spi_cs_control()