Lines Matching refs:dln2
101 static int dln2_spi_enable(struct dln2_spi *dln2, bool enable) in dln2_spi_enable() argument
110 tx.port = dln2->port; in dln2_spi_enable()
120 return dln2_transfer_tx(dln2->pdev, cmd, &tx, len); in dln2_spi_enable()
131 static int dln2_spi_cs_set(struct dln2_spi *dln2, u8 cs_mask) in dln2_spi_cs_set() argument
138 tx.port = dln2->port; in dln2_spi_cs_set()
147 return dln2_transfer_tx(dln2->pdev, DLN2_SPI_SET_SS, &tx, sizeof(tx)); in dln2_spi_cs_set()
153 static int dln2_spi_cs_set_one(struct dln2_spi *dln2, u8 cs) in dln2_spi_cs_set_one() argument
155 return dln2_spi_cs_set(dln2, BIT(cs)); in dln2_spi_cs_set_one()
161 static int dln2_spi_cs_enable(struct dln2_spi *dln2, u8 cs_mask, bool enable) in dln2_spi_cs_enable() argument
169 tx.port = dln2->port; in dln2_spi_cs_enable()
173 return dln2_transfer_tx(dln2->pdev, cmd, &tx, sizeof(tx)); in dln2_spi_cs_enable()
176 static int dln2_spi_cs_enable_all(struct dln2_spi *dln2, bool enable) in dln2_spi_cs_enable_all() argument
178 u8 cs_mask = GENMASK(dln2->master->num_chipselect - 1, 0); in dln2_spi_cs_enable_all()
180 return dln2_spi_cs_enable(dln2, cs_mask, enable); in dln2_spi_cs_enable_all()
183 static int dln2_spi_get_cs_num(struct dln2_spi *dln2, u16 *cs_num) in dln2_spi_get_cs_num() argument
194 tx.port = dln2->port; in dln2_spi_get_cs_num()
195 ret = dln2_transfer(dln2->pdev, DLN2_SPI_GET_SS_COUNT, &tx, sizeof(tx), in dln2_spi_get_cs_num()
204 dev_dbg(&dln2->pdev->dev, "cs_num = %d\n", *cs_num); in dln2_spi_get_cs_num()
209 static int dln2_spi_get_speed(struct dln2_spi *dln2, u16 cmd, u32 *freq) in dln2_spi_get_speed() argument
220 tx.port = dln2->port; in dln2_spi_get_speed()
222 ret = dln2_transfer(dln2->pdev, cmd, &tx, sizeof(tx), &rx, &rx_len); in dln2_spi_get_speed()
236 static int dln2_spi_get_speed_range(struct dln2_spi *dln2, u32 *fmin, u32 *fmax) in dln2_spi_get_speed_range() argument
240 ret = dln2_spi_get_speed(dln2, DLN2_SPI_GET_MIN_FREQUENCY, fmin); in dln2_spi_get_speed_range()
244 ret = dln2_spi_get_speed(dln2, DLN2_SPI_GET_MAX_FREQUENCY, fmax); in dln2_spi_get_speed_range()
248 dev_dbg(&dln2->pdev->dev, "freq_min = %d, freq_max = %d\n", in dln2_spi_get_speed_range()
258 static int dln2_spi_set_speed(struct dln2_spi *dln2, u32 speed) in dln2_spi_set_speed() argument
270 tx.port = dln2->port; in dln2_spi_set_speed()
273 ret = dln2_transfer(dln2->pdev, DLN2_SPI_SET_FREQUENCY, &tx, sizeof(tx), in dln2_spi_set_speed()
286 static int dln2_spi_set_mode(struct dln2_spi *dln2, u8 mode) in dln2_spi_set_mode() argument
293 tx.port = dln2->port; in dln2_spi_set_mode()
296 return dln2_transfer_tx(dln2->pdev, DLN2_SPI_SET_MODE, &tx, sizeof(tx)); in dln2_spi_set_mode()
302 static int dln2_spi_set_bpw(struct dln2_spi *dln2, u8 bpw) in dln2_spi_set_bpw() argument
309 tx.port = dln2->port; in dln2_spi_set_bpw()
312 return dln2_transfer_tx(dln2->pdev, DLN2_SPI_SET_FRAME_SIZE, in dln2_spi_set_bpw()
316 static int dln2_spi_get_supported_frame_sizes(struct dln2_spi *dln2, in dln2_spi_get_supported_frame_sizes() argument
326 } *rx = dln2->buf; in dln2_spi_get_supported_frame_sizes()
330 tx.port = dln2->port; in dln2_spi_get_supported_frame_sizes()
332 ret = dln2_transfer(dln2->pdev, DLN2_SPI_GET_SUPPORTED_FRAME_SIZES, in dln2_spi_get_supported_frame_sizes()
345 dev_dbg(&dln2->pdev->dev, "bpw_mask = 0x%X\n", *bpw_mask); in dln2_spi_get_supported_frame_sizes()
418 static int dln2_spi_write_one(struct dln2_spi *dln2, const u8 *data, in dln2_spi_write_one() argument
426 } __packed *tx = dln2->buf; in dln2_spi_write_one()
434 tx->port = dln2->port; in dln2_spi_write_one()
438 dln2_spi_copy_to_buf(tx->buf, data, data_len, dln2->bpw); in dln2_spi_write_one()
441 return dln2_transfer_tx(dln2->pdev, DLN2_SPI_WRITE, tx, tx_len); in dln2_spi_write_one()
447 static int dln2_spi_read_one(struct dln2_spi *dln2, u8 *data, in dln2_spi_read_one() argument
459 } __packed *rx = dln2->buf; in dln2_spi_read_one()
467 tx.port = dln2->port; in dln2_spi_read_one()
471 ret = dln2_transfer(dln2->pdev, DLN2_SPI_READ, &tx, sizeof(tx), in dln2_spi_read_one()
480 dln2_spi_copy_from_buf(data, rx->buf, data_len, dln2->bpw); in dln2_spi_read_one()
488 static int dln2_spi_read_write_one(struct dln2_spi *dln2, const u8 *tx_data, in dln2_spi_read_write_one() argument
515 tx = dln2->buf; in dln2_spi_read_write_one()
516 rx = dln2->buf; in dln2_spi_read_write_one()
518 tx->port = dln2->port; in dln2_spi_read_write_one()
522 dln2_spi_copy_to_buf(tx->buf, tx_data, data_len, dln2->bpw); in dln2_spi_read_write_one()
527 ret = dln2_transfer(dln2->pdev, DLN2_SPI_READ_WRITE, tx, tx_len, in dln2_spi_read_write_one()
536 dln2_spi_copy_from_buf(rx_data, rx->buf, data_len, dln2->bpw); in dln2_spi_read_write_one()
545 static int dln2_spi_rdwr(struct dln2_spi *dln2, const u8 *tx_data, in dln2_spi_rdwr() argument
566 ret = dln2_spi_read_write_one(dln2, in dln2_spi_rdwr()
571 ret = dln2_spi_write_one(dln2, in dln2_spi_rdwr()
575 ret = dln2_spi_read_one(dln2, in dln2_spi_rdwr()
595 struct dln2_spi *dln2 = spi_master_get_devdata(master); in dln2_spi_prepare_message() local
598 if (dln2->cs != spi->chip_select) { in dln2_spi_prepare_message()
599 ret = dln2_spi_cs_set_one(dln2, spi->chip_select); in dln2_spi_prepare_message()
603 dln2->cs = spi->chip_select; in dln2_spi_prepare_message()
609 static int dln2_spi_transfer_setup(struct dln2_spi *dln2, u32 speed, in dln2_spi_transfer_setup() argument
615 bus_setup_change = dln2->speed != speed || dln2->mode != mode || in dln2_spi_transfer_setup()
616 dln2->bpw != bpw; in dln2_spi_transfer_setup()
621 ret = dln2_spi_enable(dln2, false); in dln2_spi_transfer_setup()
625 if (dln2->speed != speed) { in dln2_spi_transfer_setup()
626 ret = dln2_spi_set_speed(dln2, speed); in dln2_spi_transfer_setup()
630 dln2->speed = speed; in dln2_spi_transfer_setup()
633 if (dln2->mode != mode) { in dln2_spi_transfer_setup()
634 ret = dln2_spi_set_mode(dln2, mode & 0x3); in dln2_spi_transfer_setup()
638 dln2->mode = mode; in dln2_spi_transfer_setup()
641 if (dln2->bpw != bpw) { in dln2_spi_transfer_setup()
642 ret = dln2_spi_set_bpw(dln2, bpw); in dln2_spi_transfer_setup()
646 dln2->bpw = bpw; in dln2_spi_transfer_setup()
649 return dln2_spi_enable(dln2, true); in dln2_spi_transfer_setup()
656 struct dln2_spi *dln2 = spi_master_get_devdata(master); in dln2_spi_transfer_one() local
660 status = dln2_spi_transfer_setup(dln2, xfer->speed_hz, in dln2_spi_transfer_one()
664 dev_err(&dln2->pdev->dev, "Cannot setup transfer\n"); in dln2_spi_transfer_one()
671 status = dln2_spi_rdwr(dln2, xfer->tx_buf, xfer->rx_buf, in dln2_spi_transfer_one()
674 dev_err(&dln2->pdev->dev, "write/read failed!\n"); in dln2_spi_transfer_one()
682 struct dln2_spi *dln2; in dln2_spi_probe() local
687 master = spi_alloc_master(&pdev->dev, sizeof(*dln2)); in dln2_spi_probe()
693 dln2 = spi_master_get_devdata(master); in dln2_spi_probe()
695 dln2->buf = devm_kmalloc(&pdev->dev, DLN2_SPI_BUF_SIZE, GFP_KERNEL); in dln2_spi_probe()
696 if (!dln2->buf) { in dln2_spi_probe()
701 dln2->master = master; in dln2_spi_probe()
702 dln2->master->dev.of_node = dev->of_node; in dln2_spi_probe()
703 dln2->pdev = pdev; in dln2_spi_probe()
704 dln2->port = pdata->port; in dln2_spi_probe()
706 dln2->cs = 0xff; in dln2_spi_probe()
707 dln2->mode = 0xff; in dln2_spi_probe()
710 ret = dln2_spi_enable(dln2, false); in dln2_spi_probe()
716 ret = dln2_spi_get_cs_num(dln2, &master->num_chipselect); in dln2_spi_probe()
722 ret = dln2_spi_get_speed_range(dln2, in dln2_spi_probe()
730 ret = dln2_spi_get_supported_frame_sizes(dln2, in dln2_spi_probe()
737 ret = dln2_spi_cs_enable_all(dln2, true); in dln2_spi_probe()
750 ret = dln2_spi_enable(dln2, true); in dln2_spi_probe()
774 if (dln2_spi_enable(dln2, false) < 0) in dln2_spi_probe()
785 struct dln2_spi *dln2 = spi_master_get_devdata(master); in dln2_spi_remove() local
789 if (dln2_spi_enable(dln2, false) < 0) in dln2_spi_remove()
800 struct dln2_spi *dln2 = spi_master_get_devdata(master); in dln2_spi_suspend() local
807 ret = dln2_spi_enable(dln2, false); in dln2_spi_suspend()
816 dln2->cs = 0xff; in dln2_spi_suspend()
817 dln2->speed = 0; in dln2_spi_suspend()
818 dln2->bpw = 0; in dln2_spi_suspend()
819 dln2->mode = 0xff; in dln2_spi_suspend()
828 struct dln2_spi *dln2 = spi_master_get_devdata(master); in dln2_spi_resume() local
831 ret = dln2_spi_cs_enable_all(dln2, true); in dln2_spi_resume()
835 ret = dln2_spi_enable(dln2, true); in dln2_spi_resume()
848 struct dln2_spi *dln2 = spi_master_get_devdata(master); in dln2_spi_runtime_suspend() local
850 return dln2_spi_enable(dln2, false); in dln2_spi_runtime_suspend()
856 struct dln2_spi *dln2 = spi_master_get_devdata(master); in dln2_spi_runtime_resume() local
858 return dln2_spi_enable(dln2, true); in dln2_spi_runtime_resume()