78 irqreturn_t netup_spi_interrupt(struct netup_spi *spi)  in netup_spi_interrupt()  argument
83 	if (!spi)  in netup_spi_interrupt()
86 	spin_lock_irqsave(&spi->lock, flags);  in netup_spi_interrupt()
87 	reg = readw(&spi->regs->control_stat);  in netup_spi_interrupt()
89 		spin_unlock_irqrestore(&spi->lock, flags);  in netup_spi_interrupt()
90 		dev_dbg(&spi->master->dev,  in netup_spi_interrupt()
94 	writew(reg | NETUP_SPI_CTRL_IRQ, &spi->regs->control_stat);  in netup_spi_interrupt()
95 	reg = readw(&spi->regs->control_stat);  in netup_spi_interrupt()
96 	writew(reg & ~NETUP_SPI_CTRL_IMASK, &spi->regs->control_stat);  in netup_spi_interrupt()
97 	spi->state = SPI_STATE_DONE;  in netup_spi_interrupt()
98 	wake_up(&spi->waitq);  in netup_spi_interrupt()
99 	spin_unlock_irqrestore(&spi->lock, flags);  in netup_spi_interrupt()
100 	dev_dbg(&spi->master->dev,  in netup_spi_interrupt()
108 	struct netup_spi *spi = spi_master_get_devdata(master);  in netup_spi_transfer()  local
114 	writew(NETUP_SPI_CTRL_LAST_CS, &spi->regs->control_stat);  in netup_spi_transfer()
115 	writew(0, &spi->regs->control_stat);  in netup_spi_transfer()
120 			u32 frag_size = (tr_size > sizeof(spi->regs->data)) ?  in netup_spi_transfer()
121 					sizeof(spi->regs->data) : tr_size;  in netup_spi_transfer()
130 				memcpy_toio(spi->regs->data,  in netup_spi_transfer()
134 				memset_io(spi->regs->data,  in netup_spi_transfer()
137 			spi->state = SPI_STATE_START;  in netup_spi_transfer()
142 				&spi->regs->control_stat);  in netup_spi_transfer()
143 			dev_dbg(&spi->master->dev,  in netup_spi_transfer()
145 				__func__, readw(&spi->regs->control_stat));  in netup_spi_transfer()
146 			wait_event_timeout(spi->waitq,  in netup_spi_transfer()
147 				spi->state != SPI_STATE_START,  in netup_spi_transfer()
149 			if (spi->state == SPI_STATE_DONE) {  in netup_spi_transfer()
152 						spi->regs->data, frag_size);  in netup_spi_transfer()
155 				if (spi->state == SPI_STATE_START) {  in netup_spi_transfer()
156 					dev_dbg(&spi->master->dev,  in netup_spi_transfer()
160 					dev_dbg(&spi->master->dev,  in netup_spi_transfer()
162 						__func__, spi->state);  in netup_spi_transfer()
177 static int netup_spi_setup(struct spi_device *spi)  in netup_spi_setup()  argument
206 	ndev->spi = nspi;  in netup_spi_init()
208 		ndev->spi = NULL;  in netup_spi_init()
220 		ndev->spi = NULL;  in netup_spi_init()
233 	struct netup_spi *spi = ndev->spi;  in netup_spi_release()  local
235 	if (!spi)  in netup_spi_release()
238 	spin_lock_irqsave(&spi->lock, flags);  in netup_spi_release()
239 	reg = readw(&spi->regs->control_stat);  in netup_spi_release()
240 	writew(reg | NETUP_SPI_CTRL_IRQ, &spi->regs->control_stat);  in netup_spi_release()
241 	reg = readw(&spi->regs->control_stat);  in netup_spi_release()
242 	writew(reg & ~NETUP_SPI_CTRL_IMASK, &spi->regs->control_stat);  in netup_spi_release()
243 	spin_unlock_irqrestore(&spi->lock, flags);  in netup_spi_release()
244 	spi_unregister_master(spi->master);  in netup_spi_release()
245 	ndev->spi = NULL;  in netup_spi_release()