Lines Matching full:as
302 static bool atmel_spi_is_v2(struct atmel_spi *as) in atmel_spi_is_v2() argument
304 return as->caps.is_spi2; in atmel_spi_is_v2()
311 * transmitted") Not so! Workaround uses nCSx pins as GPIOs; or newer
314 * Even controller newer than ar91rm9200, using GPIOs can make sens as
325 static void cs_activate(struct atmel_spi *as, struct spi_device *spi) in cs_activate() argument
332 chip_select = as->native_cs_for_gpio; in cs_activate()
336 if (atmel_spi_is_v2(as)) { in cs_activate()
337 spi_writel(as, CSR0 + 4 * chip_select, asd->csr); in cs_activate()
339 * on CS1,2,3 needs SPI_CSR0.BITS config as SPI_CSR1,2,3.BITS in cs_activate()
341 spi_writel(as, CSR0, asd->csr); in cs_activate()
342 if (as->caps.has_wdrbt) { in cs_activate()
343 spi_writel(as, MR, in cs_activate()
349 spi_writel(as, MR, in cs_activate()
355 mr = spi_readl(as, MR); in cs_activate()
363 csr = spi_readl(as, CSR0 + 4 * i); in cs_activate()
365 spi_writel(as, CSR0 + 4 * i, in cs_activate()
369 mr = spi_readl(as, MR); in cs_activate()
371 spi_writel(as, MR, mr); in cs_activate()
377 static void cs_deactivate(struct atmel_spi *as, struct spi_device *spi) in cs_deactivate() argument
383 chip_select = as->native_cs_for_gpio; in cs_deactivate()
390 mr = spi_readl(as, MR); in cs_deactivate()
393 spi_writel(as, MR, mr); in cs_deactivate()
399 spi_writel(as, CR, SPI_BIT(LASTXFER)); in cs_deactivate()
402 static void atmel_spi_lock(struct atmel_spi *as) __acquires(&as->lock) in atmel_spi_lock() argument
404 spin_lock_irqsave(&as->lock, as->flags); in atmel_spi_lock()
407 static void atmel_spi_unlock(struct atmel_spi *as) __releases(&as->lock) in atmel_spi_unlock() argument
409 spin_unlock_irqrestore(&as->lock, as->flags); in atmel_spi_unlock()
417 static inline bool atmel_spi_use_dma(struct atmel_spi *as, in atmel_spi_use_dma() argument
420 return as->use_dma && xfer->len >= DMA_MIN_BYTES; in atmel_spi_use_dma()
427 struct atmel_spi *as = spi_controller_get_devdata(host); in atmel_spi_can_dma() local
430 return atmel_spi_use_dma(as, xfer) && in atmel_spi_can_dma()
433 return atmel_spi_use_dma(as, xfer); in atmel_spi_can_dma()
437 static int atmel_spi_dma_slave_config(struct atmel_spi *as, u8 bits_per_word) in atmel_spi_dma_slave_config() argument
439 struct spi_controller *host = platform_get_drvdata(as->pdev); in atmel_spi_dma_slave_config()
451 slave_config.dst_addr = (dma_addr_t)as->phybase + SPI_TDR; in atmel_spi_dma_slave_config()
452 slave_config.src_addr = (dma_addr_t)as->phybase + SPI_RDR; in atmel_spi_dma_slave_config()
472 dev_err(&as->pdev->dev, in atmel_spi_dma_slave_config()
486 dev_err(&as->pdev->dev, in atmel_spi_dma_slave_config()
495 struct atmel_spi *as) in atmel_spi_configure_dma() argument
497 struct device *dev = &as->pdev->dev; in atmel_spi_configure_dma()
518 err = atmel_spi_dma_slave_config(as, 8); in atmel_spi_configure_dma()
522 dev_info(&as->pdev->dev, in atmel_spi_configure_dma()
562 struct atmel_spi *as = spi_controller_get_devdata(host); in dma_callback() local
564 if (is_vmalloc_addr(as->current_transfer->rx_buf) && in dma_callback()
566 memcpy(as->current_transfer->rx_buf, as->addr_rx_bbuf, in dma_callback()
567 as->current_transfer->len); in dma_callback()
569 complete(&as->xfer_completion); in dma_callback()
578 struct atmel_spi *as = spi_controller_get_devdata(host); in atmel_spi_next_xfer_single() local
579 unsigned long xfer_pos = xfer->len - as->current_remaining_bytes; in atmel_spi_next_xfer_single()
584 spi_readl(as, RDR); in atmel_spi_next_xfer_single()
585 while (spi_readl(as, SR) & SPI_BIT(RDRF)) { in atmel_spi_next_xfer_single()
586 spi_readl(as, RDR); in atmel_spi_next_xfer_single()
591 spi_writel(as, TDR, *(u16 *)(xfer->tx_buf + xfer_pos)); in atmel_spi_next_xfer_single()
593 spi_writel(as, TDR, *(u8 *)(xfer->tx_buf + xfer_pos)); in atmel_spi_next_xfer_single()
601 spi_writel(as, IER, SPI_BIT(RDRF) | SPI_BIT(OVRES)); in atmel_spi_next_xfer_single()
610 struct atmel_spi *as = spi_controller_get_devdata(host); in atmel_spi_next_xfer_fifo() local
612 u32 offset = xfer->len - as->current_remaining_bytes; in atmel_spi_next_xfer_fifo()
622 ((u32)as->current_remaining_bytes >> 1) : in atmel_spi_next_xfer_fifo()
623 (u32)as->current_remaining_bytes); in atmel_spi_next_xfer_fifo()
624 num_data = min(current_remaining_data, as->fifo_size); in atmel_spi_next_xfer_fifo()
627 spi_writel(as, CR, SPI_BIT(RXFCLR) | SPI_BIT(TXFCLR)); in atmel_spi_next_xfer_fifo()
628 while (spi_readl(as, FLR)) in atmel_spi_next_xfer_fifo()
632 fifomr = spi_readl(as, FMR); in atmel_spi_next_xfer_fifo()
633 spi_writel(as, FMR, SPI_BFINS(RXFTHRES, num_data, fifomr)); in atmel_spi_next_xfer_fifo()
636 (void)spi_readl(as, SR); in atmel_spi_next_xfer_fifo()
648 spi_writel(as, TDR, (td1 << 16) | td0); in atmel_spi_next_xfer_fifo()
658 spi_writew(as, TDR, td0); in atmel_spi_next_xfer_fifo()
671 spi_writel(as, IER, SPI_BIT(RXFTHF) | SPI_BIT(OVRES)); in atmel_spi_next_xfer_fifo()
680 struct atmel_spi *as = spi_controller_get_devdata(host); in atmel_spi_next_xfer_pio() local
682 if (as->fifo_size) in atmel_spi_next_xfer_pio()
695 struct atmel_spi *as = spi_controller_get_devdata(host); in atmel_spi_next_xfer_dma_submit() local
711 if (atmel_spi_dma_slave_config(as, xfer->bits_per_word)) in atmel_spi_next_xfer_dma_submit()
718 as->dma_addr_rx_bbuf, in atmel_spi_next_xfer_dma_submit()
736 memcpy(as->addr_tx_bbuf, xfer->tx_buf, xfer->len); in atmel_spi_next_xfer_dma_submit()
738 as->dma_addr_tx_bbuf, in atmel_spi_next_xfer_dma_submit()
759 spi_writel(as, IER, SPI_BIT(OVRES)); in atmel_spi_next_xfer_dma_submit()
778 spi_writel(as, IDR, SPI_BIT(OVRES)); in atmel_spi_next_xfer_dma_submit()
796 static int atmel_spi_set_xfer_speed(struct atmel_spi *as, in atmel_spi_set_xfer_speed() argument
805 chip_select = as->native_cs_for_gpio; in atmel_spi_set_xfer_speed()
810 bus_hz = as->spi_clk; in atmel_spi_set_xfer_speed()
811 if (!atmel_spi_is_v2(as)) in atmel_spi_set_xfer_speed()
836 csr = spi_readl(as, CSR0 + 4 * chip_select); in atmel_spi_set_xfer_speed()
838 spi_writel(as, CSR0 + 4 * chip_select, csr); in atmel_spi_set_xfer_speed()
851 struct atmel_spi *as = spi_controller_get_devdata(host); in atmel_spi_pdc_next_xfer() local
855 spi_writel(as, PTCR, SPI_BIT(RXTDIS) | SPI_BIT(TXTDIS)); in atmel_spi_pdc_next_xfer()
857 len = as->current_remaining_bytes; in atmel_spi_pdc_next_xfer()
859 as->current_remaining_bytes -= len; in atmel_spi_pdc_next_xfer()
861 spi_writel(as, RPR, rx_dma); in atmel_spi_pdc_next_xfer()
862 spi_writel(as, TPR, tx_dma); in atmel_spi_pdc_next_xfer()
866 spi_writel(as, RCR, len); in atmel_spi_pdc_next_xfer()
867 spi_writel(as, TCR, len); in atmel_spi_pdc_next_xfer()
875 if (as->current_remaining_bytes) { in atmel_spi_pdc_next_xfer()
876 len = as->current_remaining_bytes; in atmel_spi_pdc_next_xfer()
878 as->current_remaining_bytes -= len; in atmel_spi_pdc_next_xfer()
880 spi_writel(as, RNPR, rx_dma); in atmel_spi_pdc_next_xfer()
881 spi_writel(as, TNPR, tx_dma); in atmel_spi_pdc_next_xfer()
885 spi_writel(as, RNCR, len); in atmel_spi_pdc_next_xfer()
886 spi_writel(as, TNCR, len); in atmel_spi_pdc_next_xfer()
905 spi_writel(as, IER, SPI_BIT(RXBUFF) | SPI_BIT(OVRES)); in atmel_spi_pdc_next_xfer()
906 spi_writel(as, PTCR, SPI_BIT(TXTEN) | SPI_BIT(RXTEN)); in atmel_spi_pdc_next_xfer()
910 * For DMA, tx_buf/tx_dma have the same relationship as rx_buf/rx_dma:
917 atmel_spi_dma_map_xfer(struct atmel_spi *as, struct spi_transfer *xfer) in atmel_spi_dma_map_xfer() argument
919 struct device *dev = &as->pdev->dev; in atmel_spi_dma_map_xfer()
959 static void atmel_spi_disable_pdc_transfer(struct atmel_spi *as) in atmel_spi_disable_pdc_transfer() argument
961 spi_writel(as, PTCR, SPI_BIT(RXTDIS) | SPI_BIT(TXTDIS)); in atmel_spi_disable_pdc_transfer()
965 atmel_spi_pump_single_data(struct atmel_spi *as, struct spi_transfer *xfer) in atmel_spi_pump_single_data() argument
969 unsigned long xfer_pos = xfer->len - as->current_remaining_bytes; in atmel_spi_pump_single_data()
973 *rxp16 = spi_readl(as, RDR); in atmel_spi_pump_single_data()
976 *rxp = spi_readl(as, RDR); in atmel_spi_pump_single_data()
979 if (as->current_remaining_bytes > 2) in atmel_spi_pump_single_data()
980 as->current_remaining_bytes -= 2; in atmel_spi_pump_single_data()
982 as->current_remaining_bytes = 0; in atmel_spi_pump_single_data()
984 as->current_remaining_bytes--; in atmel_spi_pump_single_data()
989 atmel_spi_pump_fifo_data(struct atmel_spi *as, struct spi_transfer *xfer) in atmel_spi_pump_fifo_data() argument
991 u32 fifolr = spi_readl(as, FLR); in atmel_spi_pump_fifo_data()
993 u32 offset = xfer->len - as->current_remaining_bytes; in atmel_spi_pump_fifo_data()
1003 if (as->current_remaining_bytes > num_bytes) in atmel_spi_pump_fifo_data()
1004 as->current_remaining_bytes -= num_bytes; in atmel_spi_pump_fifo_data()
1006 as->current_remaining_bytes = 0; in atmel_spi_pump_fifo_data()
1010 as->current_remaining_bytes &= ~0x1; in atmel_spi_pump_fifo_data()
1014 rd = spi_readl(as, RDR); in atmel_spi_pump_fifo_data()
1029 atmel_spi_pump_pio_data(struct atmel_spi *as, struct spi_transfer *xfer) in atmel_spi_pump_pio_data() argument
1031 if (as->fifo_size) in atmel_spi_pump_pio_data()
1032 atmel_spi_pump_fifo_data(as, xfer); in atmel_spi_pump_pio_data()
1034 atmel_spi_pump_single_data(as, xfer); in atmel_spi_pump_pio_data()
1044 struct atmel_spi *as = spi_controller_get_devdata(host); in atmel_spi_pio_interrupt() local
1049 imr = spi_readl(as, IMR); in atmel_spi_pio_interrupt()
1050 status = spi_readl(as, SR); in atmel_spi_pio_interrupt()
1055 spi_writel(as, IDR, SPI_BIT(OVRES)); in atmel_spi_pio_interrupt()
1067 as->done_status = -EIO; in atmel_spi_pio_interrupt()
1071 spi_readl(as, SR); in atmel_spi_pio_interrupt()
1073 complete(&as->xfer_completion); in atmel_spi_pio_interrupt()
1076 atmel_spi_lock(as); in atmel_spi_pio_interrupt()
1078 if (as->current_remaining_bytes) { in atmel_spi_pio_interrupt()
1080 xfer = as->current_transfer; in atmel_spi_pio_interrupt()
1081 atmel_spi_pump_pio_data(as, xfer); in atmel_spi_pio_interrupt()
1082 if (!as->current_remaining_bytes) in atmel_spi_pio_interrupt()
1083 spi_writel(as, IDR, pending); in atmel_spi_pio_interrupt()
1085 complete(&as->xfer_completion); in atmel_spi_pio_interrupt()
1088 atmel_spi_unlock(as); in atmel_spi_pio_interrupt()
1092 spi_writel(as, IDR, pending); in atmel_spi_pio_interrupt()
1102 struct atmel_spi *as = spi_controller_get_devdata(host); in atmel_spi_pdc_interrupt() local
1106 imr = spi_readl(as, IMR); in atmel_spi_pdc_interrupt()
1107 status = spi_readl(as, SR); in atmel_spi_pdc_interrupt()
1114 spi_writel(as, IDR, (SPI_BIT(RXBUFF) | SPI_BIT(ENDRX) in atmel_spi_pdc_interrupt()
1118 spi_readl(as, SR); in atmel_spi_pdc_interrupt()
1120 as->done_status = -EIO; in atmel_spi_pdc_interrupt()
1122 complete(&as->xfer_completion); in atmel_spi_pdc_interrupt()
1127 spi_writel(as, IDR, pending); in atmel_spi_pdc_interrupt()
1129 complete(&as->xfer_completion); in atmel_spi_pdc_interrupt()
1135 static int atmel_word_delay_csr(struct spi_device *spi, struct atmel_spi *as) in atmel_word_delay_csr() argument
1150 return (as->spi_clk / 1000000 * value) >> 5; in atmel_word_delay_csr()
1153 static void initialize_native_cs_for_gpio(struct atmel_spi *as) in initialize_native_cs_for_gpio() argument
1156 struct spi_controller *host = platform_get_drvdata(as->pdev); in initialize_native_cs_for_gpio()
1158 if (!as->native_cs_free) in initialize_native_cs_for_gpio()
1168 if (atmel_spi_is_v2(as)) in initialize_native_cs_for_gpio()
1175 as->native_cs_free |= BIT(i); in initialize_native_cs_for_gpio()
1177 if (as->native_cs_free) in initialize_native_cs_for_gpio()
1178 as->native_cs_for_gpio = ffs(as->native_cs_free); in initialize_native_cs_for_gpio()
1183 struct atmel_spi *as; in atmel_spi_setup() local
1190 as = spi_controller_get_devdata(spi->controller); in atmel_spi_setup()
1203 initialize_native_cs_for_gpio(as); in atmel_spi_setup()
1205 if (spi_get_csgpiod(spi, 0) && as->native_cs_free) { in atmel_spi_setup()
1212 chip_select = as->native_cs_for_gpio; in atmel_spi_setup()
1226 word_delay_csr = atmel_word_delay_csr(spi, as); in atmel_spi_setup()
1250 if (!atmel_spi_is_v2(as)) in atmel_spi_setup()
1251 spi_writel(as, CSR0 + 4 * chip_select, csr); in atmel_spi_setup()
1258 struct atmel_spi *as = spi_controller_get_devdata(spi->controller); in atmel_spi_set_cs() local
1266 cs_activate(as, spi); in atmel_spi_set_cs()
1268 cs_deactivate(as, spi); in atmel_spi_set_cs()
1277 struct atmel_spi *as; in atmel_spi_one_transfer() local
1286 as = spi_controller_get_devdata(host); in atmel_spi_one_transfer()
1301 && as->use_pdc) { in atmel_spi_one_transfer()
1302 if (atmel_spi_dma_map_xfer(as, xfer) < 0) in atmel_spi_one_transfer()
1306 atmel_spi_set_xfer_speed(as, spi, xfer); in atmel_spi_one_transfer()
1308 as->done_status = 0; in atmel_spi_one_transfer()
1309 as->current_transfer = xfer; in atmel_spi_one_transfer()
1310 as->current_remaining_bytes = xfer->len; in atmel_spi_one_transfer()
1311 while (as->current_remaining_bytes) { in atmel_spi_one_transfer()
1312 reinit_completion(&as->xfer_completion); in atmel_spi_one_transfer()
1314 if (as->use_pdc) { in atmel_spi_one_transfer()
1315 atmel_spi_lock(as); in atmel_spi_one_transfer()
1317 atmel_spi_unlock(as); in atmel_spi_one_transfer()
1318 } else if (atmel_spi_use_dma(as, xfer)) { in atmel_spi_one_transfer()
1319 len = as->current_remaining_bytes; in atmel_spi_one_transfer()
1325 as->done_status = ret; in atmel_spi_one_transfer()
1328 as->current_remaining_bytes -= len; in atmel_spi_one_transfer()
1329 if (as->current_remaining_bytes < 0) in atmel_spi_one_transfer()
1330 as->current_remaining_bytes = 0; in atmel_spi_one_transfer()
1333 atmel_spi_lock(as); in atmel_spi_one_transfer()
1335 atmel_spi_unlock(as); in atmel_spi_one_transfer()
1339 ret_timeout = wait_for_completion_interruptible_timeout(&as->xfer_completion, in atmel_spi_one_transfer()
1344 as->done_status = ret_timeout < 0 ? ret_timeout : -EIO; in atmel_spi_one_transfer()
1347 if (as->done_status) in atmel_spi_one_transfer()
1351 if (as->done_status) { in atmel_spi_one_transfer()
1352 if (as->use_pdc) { in atmel_spi_one_transfer()
1355 spi_readl(as, TCR), spi_readl(as, RCR)); in atmel_spi_one_transfer()
1361 spi_writel(as, RNCR, 0); in atmel_spi_one_transfer()
1362 spi_writel(as, TNCR, 0); in atmel_spi_one_transfer()
1363 spi_writel(as, RCR, 0); in atmel_spi_one_transfer()
1364 spi_writel(as, TCR, 0); in atmel_spi_one_transfer()
1366 if (spi_readl(as, SR) & SPI_BIT(TXEMPTY)) in atmel_spi_one_transfer()
1371 while (spi_readl(as, SR) & SPI_BIT(RDRF)) in atmel_spi_one_transfer()
1372 spi_readl(as, RDR); in atmel_spi_one_transfer()
1375 spi_readl(as, SR); in atmel_spi_one_transfer()
1377 } else if (atmel_spi_use_dma(as, xfer)) { in atmel_spi_one_transfer()
1383 && as->use_pdc) in atmel_spi_one_transfer()
1386 if (as->use_pdc) in atmel_spi_one_transfer()
1387 atmel_spi_disable_pdc_transfer(as); in atmel_spi_one_transfer()
1389 return as->done_status; in atmel_spi_one_transfer()
1403 static inline unsigned int atmel_get_version(struct atmel_spi *as) in atmel_get_version() argument
1405 return spi_readl(as, VERSION) & 0x00000fff; in atmel_get_version()
1408 static void atmel_get_caps(struct atmel_spi *as) in atmel_get_caps() argument
1412 version = atmel_get_version(as); in atmel_get_caps()
1414 as->caps.is_spi2 = version > 0x121; in atmel_get_caps()
1415 as->caps.has_wdrbt = version >= 0x210; in atmel_get_caps()
1416 as->caps.has_dma_support = version >= 0x212; in atmel_get_caps()
1417 as->caps.has_pdc_support = version < 0x212; in atmel_get_caps()
1420 static void atmel_spi_init(struct atmel_spi *as) in atmel_spi_init() argument
1422 spi_writel(as, CR, SPI_BIT(SWRST)); in atmel_spi_init()
1423 spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */ in atmel_spi_init()
1426 if (as->fifo_size) in atmel_spi_init()
1427 spi_writel(as, CR, SPI_BIT(FIFOEN)); in atmel_spi_init()
1429 if (as->caps.has_wdrbt) { in atmel_spi_init()
1430 spi_writel(as, MR, SPI_BIT(WDRBT) | SPI_BIT(MODFDIS) in atmel_spi_init()
1433 spi_writel(as, MR, SPI_BIT(MSTR) | SPI_BIT(MODFDIS)); in atmel_spi_init()
1436 if (as->use_pdc) in atmel_spi_init()
1437 spi_writel(as, PTCR, SPI_BIT(RXTDIS) | SPI_BIT(TXTDIS)); in atmel_spi_init()
1438 spi_writel(as, CR, SPI_BIT(SPIEN)); in atmel_spi_init()
1448 struct atmel_spi *as; in atmel_spi_probe() local
1462 host = spi_alloc_host(&pdev->dev, sizeof(*as)); in atmel_spi_probe()
1484 as = spi_controller_get_devdata(host); in atmel_spi_probe()
1486 spin_lock_init(&as->lock); in atmel_spi_probe()
1488 as->pdev = pdev; in atmel_spi_probe()
1489 as->regs = devm_platform_get_and_ioremap_resource(pdev, 0, ®s); in atmel_spi_probe()
1490 if (IS_ERR(as->regs)) { in atmel_spi_probe()
1491 ret = PTR_ERR(as->regs); in atmel_spi_probe()
1494 as->phybase = regs->start; in atmel_spi_probe()
1495 as->irq = irq; in atmel_spi_probe()
1496 as->clk = clk; in atmel_spi_probe()
1498 init_completion(&as->xfer_completion); in atmel_spi_probe()
1500 atmel_get_caps(as); in atmel_spi_probe()
1502 as->use_dma = false; in atmel_spi_probe()
1503 as->use_pdc = false; in atmel_spi_probe()
1504 if (as->caps.has_dma_support) { in atmel_spi_probe()
1505 ret = atmel_spi_configure_dma(host, as); in atmel_spi_probe()
1507 as->use_dma = true; in atmel_spi_probe()
1511 } else if (as->caps.has_pdc_support) { in atmel_spi_probe()
1512 as->use_pdc = true; in atmel_spi_probe()
1516 as->addr_rx_bbuf = dma_alloc_coherent(&pdev->dev, in atmel_spi_probe()
1518 &as->dma_addr_rx_bbuf, in atmel_spi_probe()
1520 if (!as->addr_rx_bbuf) { in atmel_spi_probe()
1521 as->use_dma = false; in atmel_spi_probe()
1523 as->addr_tx_bbuf = dma_alloc_coherent(&pdev->dev, in atmel_spi_probe()
1525 &as->dma_addr_tx_bbuf, in atmel_spi_probe()
1527 if (!as->addr_tx_bbuf) { in atmel_spi_probe()
1528 as->use_dma = false; in atmel_spi_probe()
1530 as->addr_rx_bbuf, in atmel_spi_probe()
1531 as->dma_addr_rx_bbuf); in atmel_spi_probe()
1534 if (!as->use_dma) in atmel_spi_probe()
1539 if (as->caps.has_dma_support && !as->use_dma) in atmel_spi_probe()
1542 if (as->use_pdc) { in atmel_spi_probe()
1557 as->spi_clk = clk_get_rate(clk); in atmel_spi_probe()
1559 as->fifo_size = 0; in atmel_spi_probe()
1561 &as->fifo_size)) { in atmel_spi_probe()
1562 dev_info(&pdev->dev, "Using FIFO (%u data)\n", as->fifo_size); in atmel_spi_probe()
1565 atmel_spi_init(as); in atmel_spi_probe()
1578 atmel_get_version(as), (unsigned long)regs->start, in atmel_spi_probe()
1587 if (as->use_dma) in atmel_spi_probe()
1590 spi_writel(as, CR, SPI_BIT(SWRST)); in atmel_spi_probe()
1591 spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */ in atmel_spi_probe()
1602 struct atmel_spi *as = spi_controller_get_devdata(host); in atmel_spi_remove() local
1607 if (as->use_dma) { in atmel_spi_remove()
1612 as->addr_tx_bbuf, in atmel_spi_remove()
1613 as->dma_addr_tx_bbuf); in atmel_spi_remove()
1615 as->addr_rx_bbuf, in atmel_spi_remove()
1616 as->dma_addr_rx_bbuf); in atmel_spi_remove()
1620 spin_lock_irq(&as->lock); in atmel_spi_remove()
1621 spi_writel(as, CR, SPI_BIT(SWRST)); in atmel_spi_remove()
1622 spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */ in atmel_spi_remove()
1623 spi_readl(as, SR); in atmel_spi_remove()
1624 spin_unlock_irq(&as->lock); in atmel_spi_remove()
1626 clk_disable_unprepare(as->clk); in atmel_spi_remove()
1635 struct atmel_spi *as = spi_controller_get_devdata(host); in atmel_spi_runtime_suspend() local
1637 clk_disable_unprepare(as->clk); in atmel_spi_runtime_suspend()
1646 struct atmel_spi *as = spi_controller_get_devdata(host); in atmel_spi_runtime_resume() local
1650 return clk_prepare_enable(as->clk); in atmel_spi_runtime_resume()
1672 struct atmel_spi *as = spi_controller_get_devdata(host); in atmel_spi_resume() local
1675 ret = clk_prepare_enable(as->clk); in atmel_spi_resume()
1679 atmel_spi_init(as); in atmel_spi_resume()
1681 clk_disable_unprepare(as->clk); in atmel_spi_resume()