Lines Matching +full:rk3066 +full:- +full:spi
1 // SPDX-License-Identifier: GPL-2.0-only
4 * Author: Addy Ke <addy.ke@rock-chips.com>
14 #include <linux/spi/spi.h>
18 #define DRIVER_NAME "rockchip-spi"
25 /* SPI register offsets */
153 /* sclk_out: spi master internal logic in rk3x can support 50Mhz */
157 * SPI_CTRLR1 is 16-bits, so we should support lengths of 0xffff + 1. However,
162 /* 2 for native cs, 2 for cs-gpio */
201 writel_relaxed((enable ? 1U : 0U), rs->regs + ROCKCHIP_SPI_SSIENR); in spi_enable_chip()
210 if (!(readl_relaxed(rs->regs + ROCKCHIP_SPI_SR) & SR_SLAVE_TX_BUSY) && in wait_for_tx_idle()
211 !((readl_relaxed(rs->regs + ROCKCHIP_SPI_SR) & SR_BUSY))) in wait_for_tx_idle()
214 if (!(readl_relaxed(rs->regs + ROCKCHIP_SPI_SR) & SR_BUSY)) in wait_for_tx_idle()
219 dev_warn(rs->dev, "spi controller is in busy state!\n"); in wait_for_tx_idle()
226 ver = readl_relaxed(rs->regs + ROCKCHIP_SPI_VERSION); in get_fifo_len()
237 static void rockchip_spi_set_cs(struct spi_device *spi, bool enable) in rockchip_spi_set_cs() argument
239 struct spi_controller *ctlr = spi->controller; in rockchip_spi_set_cs()
241 bool cs_asserted = spi->mode & SPI_CS_HIGH ? enable : !enable; in rockchip_spi_set_cs()
243 /* Return immediately for no-op */ in rockchip_spi_set_cs()
244 if (cs_asserted == rs->cs_asserted[spi->chip_select]) in rockchip_spi_set_cs()
249 pm_runtime_get_sync(rs->dev); in rockchip_spi_set_cs()
251 if (spi->cs_gpiod) in rockchip_spi_set_cs()
252 ROCKCHIP_SPI_SET_BITS(rs->regs + ROCKCHIP_SPI_SER, 1); in rockchip_spi_set_cs()
254 ROCKCHIP_SPI_SET_BITS(rs->regs + ROCKCHIP_SPI_SER, BIT(spi->chip_select)); in rockchip_spi_set_cs()
256 if (spi->cs_gpiod) in rockchip_spi_set_cs()
257 ROCKCHIP_SPI_CLR_BITS(rs->regs + ROCKCHIP_SPI_SER, 1); in rockchip_spi_set_cs()
259 ROCKCHIP_SPI_CLR_BITS(rs->regs + ROCKCHIP_SPI_SER, BIT(spi->chip_select)); in rockchip_spi_set_cs()
262 pm_runtime_put(rs->dev); in rockchip_spi_set_cs()
265 rs->cs_asserted[spi->chip_select] = cs_asserted; in rockchip_spi_set_cs()
273 /* stop running spi transfer in rockchip_spi_handle_err()
279 writel_relaxed(0, rs->regs + ROCKCHIP_SPI_IMR); in rockchip_spi_handle_err()
281 if (atomic_read(&rs->state) & TXDMA) in rockchip_spi_handle_err()
282 dmaengine_terminate_async(ctlr->dma_tx); in rockchip_spi_handle_err()
284 if (atomic_read(&rs->state) & RXDMA) in rockchip_spi_handle_err()
285 dmaengine_terminate_async(ctlr->dma_rx); in rockchip_spi_handle_err()
290 u32 tx_free = rs->fifo_len - readl_relaxed(rs->regs + ROCKCHIP_SPI_TXFLR); in rockchip_spi_pio_writer()
291 u32 words = min(rs->tx_left, tx_free); in rockchip_spi_pio_writer()
293 rs->tx_left -= words; in rockchip_spi_pio_writer()
294 for (; words; words--) { in rockchip_spi_pio_writer()
297 if (rs->n_bytes == 1) in rockchip_spi_pio_writer()
298 txw = *(u8 *)rs->tx; in rockchip_spi_pio_writer()
300 txw = *(u16 *)rs->tx; in rockchip_spi_pio_writer()
302 writel_relaxed(txw, rs->regs + ROCKCHIP_SPI_TXDR); in rockchip_spi_pio_writer()
303 rs->tx += rs->n_bytes; in rockchip_spi_pio_writer()
309 u32 words = readl_relaxed(rs->regs + ROCKCHIP_SPI_RXFLR); in rockchip_spi_pio_reader()
310 u32 rx_left = (rs->rx_left > words) ? rs->rx_left - words : 0; in rockchip_spi_pio_reader()
313 * level while spi is enabled, so instead make sure to leave in rockchip_spi_pio_reader()
318 u32 ftl = readl_relaxed(rs->regs + ROCKCHIP_SPI_RXFTLR) + 1; in rockchip_spi_pio_reader()
322 words = rs->rx_left - rx_left; in rockchip_spi_pio_reader()
326 rs->rx_left = rx_left; in rockchip_spi_pio_reader()
327 for (; words; words--) { in rockchip_spi_pio_reader()
328 u32 rxw = readl_relaxed(rs->regs + ROCKCHIP_SPI_RXDR); in rockchip_spi_pio_reader()
330 if (!rs->rx) in rockchip_spi_pio_reader()
333 if (rs->n_bytes == 1) in rockchip_spi_pio_reader()
334 *(u8 *)rs->rx = (u8)rxw; in rockchip_spi_pio_reader()
336 *(u16 *)rs->rx = (u16)rxw; in rockchip_spi_pio_reader()
337 rs->rx += rs->n_bytes; in rockchip_spi_pio_reader()
346 if (rs->tx_left) in rockchip_spi_isr()
350 if (!rs->rx_left) { in rockchip_spi_isr()
352 writel_relaxed(0, rs->regs + ROCKCHIP_SPI_IMR); in rockchip_spi_isr()
362 rs->tx = xfer->tx_buf; in rockchip_spi_prepare_irq()
363 rs->rx = xfer->rx_buf; in rockchip_spi_prepare_irq()
364 rs->tx_left = rs->tx ? xfer->len / rs->n_bytes : 0; in rockchip_spi_prepare_irq()
365 rs->rx_left = xfer->len / rs->n_bytes; in rockchip_spi_prepare_irq()
367 writel_relaxed(INT_RF_FULL, rs->regs + ROCKCHIP_SPI_IMR); in rockchip_spi_prepare_irq()
370 if (rs->tx_left) in rockchip_spi_prepare_irq()
381 int state = atomic_fetch_andnot(RXDMA, &rs->state); in rockchip_spi_dma_rxcb()
383 if (state & TXDMA && !rs->slave_abort) in rockchip_spi_dma_rxcb()
394 int state = atomic_fetch_andnot(TXDMA, &rs->state); in rockchip_spi_dma_txcb()
396 if (state & RXDMA && !rs->slave_abort) in rockchip_spi_dma_txcb()
400 wait_for_tx_idle(rs, ctlr->slave); in rockchip_spi_dma_txcb()
424 atomic_set(&rs->state, 0); in rockchip_spi_prepare_dma()
427 if (xfer->rx_buf) { in rockchip_spi_prepare_dma()
430 .src_addr = rs->dma_addr_rx, in rockchip_spi_prepare_dma()
431 .src_addr_width = rs->n_bytes, in rockchip_spi_prepare_dma()
432 .src_maxburst = rockchip_spi_calc_burst_size(xfer->len / in rockchip_spi_prepare_dma()
433 rs->n_bytes), in rockchip_spi_prepare_dma()
436 dmaengine_slave_config(ctlr->dma_rx, &rxconf); in rockchip_spi_prepare_dma()
439 ctlr->dma_rx, in rockchip_spi_prepare_dma()
440 xfer->rx_sg.sgl, xfer->rx_sg.nents, in rockchip_spi_prepare_dma()
443 return -EINVAL; in rockchip_spi_prepare_dma()
445 rxdesc->callback = rockchip_spi_dma_rxcb; in rockchip_spi_prepare_dma()
446 rxdesc->callback_param = ctlr; in rockchip_spi_prepare_dma()
450 if (xfer->tx_buf) { in rockchip_spi_prepare_dma()
453 .dst_addr = rs->dma_addr_tx, in rockchip_spi_prepare_dma()
454 .dst_addr_width = rs->n_bytes, in rockchip_spi_prepare_dma()
455 .dst_maxburst = rs->fifo_len / 4, in rockchip_spi_prepare_dma()
458 dmaengine_slave_config(ctlr->dma_tx, &txconf); in rockchip_spi_prepare_dma()
461 ctlr->dma_tx, in rockchip_spi_prepare_dma()
462 xfer->tx_sg.sgl, xfer->tx_sg.nents, in rockchip_spi_prepare_dma()
466 dmaengine_terminate_sync(ctlr->dma_rx); in rockchip_spi_prepare_dma()
467 return -EINVAL; in rockchip_spi_prepare_dma()
470 txdesc->callback = rockchip_spi_dma_txcb; in rockchip_spi_prepare_dma()
471 txdesc->callback_param = ctlr; in rockchip_spi_prepare_dma()
474 /* rx must be started before tx due to spi instinct */ in rockchip_spi_prepare_dma()
476 atomic_or(RXDMA, &rs->state); in rockchip_spi_prepare_dma()
478 dma_async_issue_pending(ctlr->dma_rx); in rockchip_spi_prepare_dma()
484 atomic_or(TXDMA, &rs->state); in rockchip_spi_prepare_dma()
486 dma_async_issue_pending(ctlr->dma_tx); in rockchip_spi_prepare_dma()
494 struct spi_device *spi, struct spi_transfer *xfer, in rockchip_spi_config() argument
506 rs->slave_abort = false; in rockchip_spi_config()
508 cr0 |= rs->rsd << CR0_RSD_OFFSET; in rockchip_spi_config()
509 cr0 |= (spi->mode & 0x3U) << CR0_SCPH_OFFSET; in rockchip_spi_config()
510 if (spi->mode & SPI_LSB_FIRST) in rockchip_spi_config()
512 if (spi->mode & SPI_CS_HIGH) in rockchip_spi_config()
513 cr0 |= BIT(spi->chip_select) << CR0_SOI_OFFSET; in rockchip_spi_config()
515 if (xfer->rx_buf && xfer->tx_buf) in rockchip_spi_config()
517 else if (xfer->rx_buf) in rockchip_spi_config()
522 switch (xfer->bits_per_word) { in rockchip_spi_config()
525 cr1 = xfer->len - 1; in rockchip_spi_config()
529 cr1 = xfer->len - 1; in rockchip_spi_config()
533 cr1 = xfer->len / 2 - 1; in rockchip_spi_config()
537 * ctlr->bits_per_word_mask, so this shouldn't in rockchip_spi_config()
540 dev_err(rs->dev, "unknown bits per word: %d\n", in rockchip_spi_config()
541 xfer->bits_per_word); in rockchip_spi_config()
542 return -EINVAL; in rockchip_spi_config()
546 if (xfer->tx_buf) in rockchip_spi_config()
548 if (xfer->rx_buf) in rockchip_spi_config()
552 writel_relaxed(cr0, rs->regs + ROCKCHIP_SPI_CTRLR0); in rockchip_spi_config()
553 writel_relaxed(cr1, rs->regs + ROCKCHIP_SPI_CTRLR1); in rockchip_spi_config()
559 if ((xfer->len / rs->n_bytes) < rs->fifo_len) in rockchip_spi_config()
560 writel_relaxed(xfer->len / rs->n_bytes - 1, rs->regs + ROCKCHIP_SPI_RXFTLR); in rockchip_spi_config()
562 writel_relaxed(rs->fifo_len / 2 - 1, rs->regs + ROCKCHIP_SPI_RXFTLR); in rockchip_spi_config()
564 writel_relaxed(rs->fifo_len / 2 - 1, rs->regs + ROCKCHIP_SPI_DMATDLR); in rockchip_spi_config()
565 writel_relaxed(rockchip_spi_calc_burst_size(xfer->len / rs->n_bytes) - 1, in rockchip_spi_config()
566 rs->regs + ROCKCHIP_SPI_DMARDLR); in rockchip_spi_config()
567 writel_relaxed(dmacr, rs->regs + ROCKCHIP_SPI_DMACR); in rockchip_spi_config()
573 writel_relaxed(2 * DIV_ROUND_UP(rs->freq, 2 * xfer->speed_hz), in rockchip_spi_config()
574 rs->regs + ROCKCHIP_SPI_BAUDR); in rockchip_spi_config()
579 static size_t rockchip_spi_max_transfer_size(struct spi_device *spi) in rockchip_spi_max_transfer_size() argument
588 rs->slave_abort = true; in rockchip_spi_slave_abort()
596 struct spi_device *spi, in rockchip_spi_transfer_one() argument
604 if (!xfer->len) { in rockchip_spi_transfer_one()
609 WARN_ON(readl_relaxed(rs->regs + ROCKCHIP_SPI_SSIENR) && in rockchip_spi_transfer_one()
610 (readl_relaxed(rs->regs + ROCKCHIP_SPI_SR) & SR_BUSY)); in rockchip_spi_transfer_one()
612 if (!xfer->tx_buf && !xfer->rx_buf) { in rockchip_spi_transfer_one()
613 dev_err(rs->dev, "No buffer for transfer\n"); in rockchip_spi_transfer_one()
614 return -EINVAL; in rockchip_spi_transfer_one()
617 if (xfer->len > ROCKCHIP_SPI_MAX_TRANLEN) { in rockchip_spi_transfer_one()
618 dev_err(rs->dev, "Transfer is too long (%d)\n", xfer->len); in rockchip_spi_transfer_one()
619 return -EINVAL; in rockchip_spi_transfer_one()
622 rs->n_bytes = xfer->bits_per_word <= 8 ? 1 : 2; in rockchip_spi_transfer_one()
624 use_dma = ctlr->can_dma ? ctlr->can_dma(ctlr, spi, xfer) : false; in rockchip_spi_transfer_one()
626 ret = rockchip_spi_config(rs, spi, xfer, use_dma, ctlr->slave); in rockchip_spi_transfer_one()
637 struct spi_device *spi, in rockchip_spi_can_dma() argument
641 unsigned int bytes_per_word = xfer->bits_per_word <= 8 ? 1 : 2; in rockchip_spi_can_dma()
643 /* if the numbor of spi words to transfer is less than the fifo in rockchip_spi_can_dma()
647 return xfer->len / bytes_per_word >= rs->fifo_len; in rockchip_spi_can_dma()
656 struct device_node *np = pdev->dev.of_node; in rockchip_spi_probe()
660 slave_mode = of_property_read_bool(np, "spi-slave"); in rockchip_spi_probe()
663 ctlr = spi_alloc_slave(&pdev->dev, in rockchip_spi_probe()
666 ctlr = spi_alloc_master(&pdev->dev, in rockchip_spi_probe()
670 return -ENOMEM; in rockchip_spi_probe()
675 ctlr->slave = slave_mode; in rockchip_spi_probe()
679 rs->regs = devm_ioremap_resource(&pdev->dev, mem); in rockchip_spi_probe()
680 if (IS_ERR(rs->regs)) { in rockchip_spi_probe()
681 ret = PTR_ERR(rs->regs); in rockchip_spi_probe()
685 rs->apb_pclk = devm_clk_get(&pdev->dev, "apb_pclk"); in rockchip_spi_probe()
686 if (IS_ERR(rs->apb_pclk)) { in rockchip_spi_probe()
687 dev_err(&pdev->dev, "Failed to get apb_pclk\n"); in rockchip_spi_probe()
688 ret = PTR_ERR(rs->apb_pclk); in rockchip_spi_probe()
692 rs->spiclk = devm_clk_get(&pdev->dev, "spiclk"); in rockchip_spi_probe()
693 if (IS_ERR(rs->spiclk)) { in rockchip_spi_probe()
694 dev_err(&pdev->dev, "Failed to get spi_pclk\n"); in rockchip_spi_probe()
695 ret = PTR_ERR(rs->spiclk); in rockchip_spi_probe()
699 ret = clk_prepare_enable(rs->apb_pclk); in rockchip_spi_probe()
701 dev_err(&pdev->dev, "Failed to enable apb_pclk\n"); in rockchip_spi_probe()
705 ret = clk_prepare_enable(rs->spiclk); in rockchip_spi_probe()
707 dev_err(&pdev->dev, "Failed to enable spi_clk\n"); in rockchip_spi_probe()
717 ret = devm_request_threaded_irq(&pdev->dev, ret, rockchip_spi_isr, NULL, in rockchip_spi_probe()
718 IRQF_ONESHOT, dev_name(&pdev->dev), ctlr); in rockchip_spi_probe()
722 rs->dev = &pdev->dev; in rockchip_spi_probe()
723 rs->freq = clk_get_rate(rs->spiclk); in rockchip_spi_probe()
725 if (!of_property_read_u32(pdev->dev.of_node, "rx-sample-delay-ns", in rockchip_spi_probe()
728 u32 rsd = DIV_ROUND_CLOSEST(rsd_nsecs * (rs->freq >> 8), in rockchip_spi_probe()
731 dev_warn(rs->dev, "%u Hz are too slow to express %u ns delay\n", in rockchip_spi_probe()
732 rs->freq, rsd_nsecs); in rockchip_spi_probe()
735 dev_warn(rs->dev, "%u Hz are too fast to express %u ns delay, clamping at %u ns\n", in rockchip_spi_probe()
736 rs->freq, rsd_nsecs, in rockchip_spi_probe()
737 CR0_RSD_MAX * 1000000000U / rs->freq); in rockchip_spi_probe()
739 rs->rsd = rsd; in rockchip_spi_probe()
742 rs->fifo_len = get_fifo_len(rs); in rockchip_spi_probe()
743 if (!rs->fifo_len) { in rockchip_spi_probe()
744 dev_err(&pdev->dev, "Failed to get fifo length\n"); in rockchip_spi_probe()
745 ret = -EINVAL; in rockchip_spi_probe()
749 pm_runtime_set_autosuspend_delay(&pdev->dev, ROCKCHIP_AUTOSUSPEND_TIMEOUT); in rockchip_spi_probe()
750 pm_runtime_use_autosuspend(&pdev->dev); in rockchip_spi_probe()
751 pm_runtime_set_active(&pdev->dev); in rockchip_spi_probe()
752 pm_runtime_enable(&pdev->dev); in rockchip_spi_probe()
754 ctlr->auto_runtime_pm = true; in rockchip_spi_probe()
755 ctlr->bus_num = pdev->id; in rockchip_spi_probe()
756 ctlr->mode_bits = SPI_CPOL | SPI_CPHA | SPI_LOOP | SPI_LSB_FIRST; in rockchip_spi_probe()
758 ctlr->mode_bits |= SPI_NO_CS; in rockchip_spi_probe()
759 ctlr->slave_abort = rockchip_spi_slave_abort; in rockchip_spi_probe()
761 ctlr->flags = SPI_MASTER_GPIO_SS; in rockchip_spi_probe()
762 ctlr->max_native_cs = ROCKCHIP_SPI_MAX_CS_NUM; in rockchip_spi_probe()
765 * if num-cs is missing in the dts, default to 1 in rockchip_spi_probe()
767 if (of_property_read_u16(np, "num-cs", &ctlr->num_chipselect)) in rockchip_spi_probe()
768 ctlr->num_chipselect = 1; in rockchip_spi_probe()
769 ctlr->use_gpio_descriptors = true; in rockchip_spi_probe()
771 ctlr->dev.of_node = pdev->dev.of_node; in rockchip_spi_probe()
772 ctlr->bits_per_word_mask = SPI_BPW_MASK(16) | SPI_BPW_MASK(8) | SPI_BPW_MASK(4); in rockchip_spi_probe()
773 ctlr->min_speed_hz = rs->freq / BAUDR_SCKDV_MAX; in rockchip_spi_probe()
774 ctlr->max_speed_hz = min(rs->freq / BAUDR_SCKDV_MIN, MAX_SCLK_OUT); in rockchip_spi_probe()
776 ctlr->set_cs = rockchip_spi_set_cs; in rockchip_spi_probe()
777 ctlr->transfer_one = rockchip_spi_transfer_one; in rockchip_spi_probe()
778 ctlr->max_transfer_size = rockchip_spi_max_transfer_size; in rockchip_spi_probe()
779 ctlr->handle_err = rockchip_spi_handle_err; in rockchip_spi_probe()
781 ctlr->dma_tx = dma_request_chan(rs->dev, "tx"); in rockchip_spi_probe()
782 if (IS_ERR(ctlr->dma_tx)) { in rockchip_spi_probe()
784 if (PTR_ERR(ctlr->dma_tx) == -EPROBE_DEFER) { in rockchip_spi_probe()
785 ret = -EPROBE_DEFER; in rockchip_spi_probe()
788 dev_warn(rs->dev, "Failed to request TX DMA channel\n"); in rockchip_spi_probe()
789 ctlr->dma_tx = NULL; in rockchip_spi_probe()
792 ctlr->dma_rx = dma_request_chan(rs->dev, "rx"); in rockchip_spi_probe()
793 if (IS_ERR(ctlr->dma_rx)) { in rockchip_spi_probe()
794 if (PTR_ERR(ctlr->dma_rx) == -EPROBE_DEFER) { in rockchip_spi_probe()
795 ret = -EPROBE_DEFER; in rockchip_spi_probe()
798 dev_warn(rs->dev, "Failed to request RX DMA channel\n"); in rockchip_spi_probe()
799 ctlr->dma_rx = NULL; in rockchip_spi_probe()
802 if (ctlr->dma_tx && ctlr->dma_rx) { in rockchip_spi_probe()
803 rs->dma_addr_tx = mem->start + ROCKCHIP_SPI_TXDR; in rockchip_spi_probe()
804 rs->dma_addr_rx = mem->start + ROCKCHIP_SPI_RXDR; in rockchip_spi_probe()
805 ctlr->can_dma = rockchip_spi_can_dma; in rockchip_spi_probe()
808 switch (readl_relaxed(rs->regs + ROCKCHIP_SPI_VERSION)) { in rockchip_spi_probe()
810 ctlr->mode_bits |= SPI_CS_HIGH; in rockchip_spi_probe()
816 ret = devm_spi_register_controller(&pdev->dev, ctlr); in rockchip_spi_probe()
818 dev_err(&pdev->dev, "Failed to register controller\n"); in rockchip_spi_probe()
825 if (ctlr->dma_rx) in rockchip_spi_probe()
826 dma_release_channel(ctlr->dma_rx); in rockchip_spi_probe()
828 if (ctlr->dma_tx) in rockchip_spi_probe()
829 dma_release_channel(ctlr->dma_tx); in rockchip_spi_probe()
831 pm_runtime_disable(&pdev->dev); in rockchip_spi_probe()
833 clk_disable_unprepare(rs->spiclk); in rockchip_spi_probe()
835 clk_disable_unprepare(rs->apb_pclk); in rockchip_spi_probe()
847 pm_runtime_get_sync(&pdev->dev); in rockchip_spi_remove()
849 clk_disable_unprepare(rs->spiclk); in rockchip_spi_remove()
850 clk_disable_unprepare(rs->apb_pclk); in rockchip_spi_remove()
852 pm_runtime_put_noidle(&pdev->dev); in rockchip_spi_remove()
853 pm_runtime_disable(&pdev->dev); in rockchip_spi_remove()
854 pm_runtime_set_suspended(&pdev->dev); in rockchip_spi_remove()
856 if (ctlr->dma_tx) in rockchip_spi_remove()
857 dma_release_channel(ctlr->dma_tx); in rockchip_spi_remove()
858 if (ctlr->dma_rx) in rockchip_spi_remove()
859 dma_release_channel(ctlr->dma_rx); in rockchip_spi_remove()
899 clk_disable_unprepare(rs->spiclk); in rockchip_spi_resume()
900 clk_disable_unprepare(rs->apb_pclk); in rockchip_spi_resume()
913 clk_disable_unprepare(rs->spiclk); in rockchip_spi_runtime_suspend()
914 clk_disable_unprepare(rs->apb_pclk); in rockchip_spi_runtime_suspend()
925 ret = clk_prepare_enable(rs->apb_pclk); in rockchip_spi_runtime_resume()
929 ret = clk_prepare_enable(rs->spiclk); in rockchip_spi_runtime_resume()
931 clk_disable_unprepare(rs->apb_pclk); in rockchip_spi_runtime_resume()
944 { .compatible = "rockchip,px30-spi", },
945 { .compatible = "rockchip,rk3036-spi", },
946 { .compatible = "rockchip,rk3066-spi", },
947 { .compatible = "rockchip,rk3188-spi", },
948 { .compatible = "rockchip,rk3228-spi", },
949 { .compatible = "rockchip,rk3288-spi", },
950 { .compatible = "rockchip,rk3308-spi", },
951 { .compatible = "rockchip,rk3328-spi", },
952 { .compatible = "rockchip,rk3368-spi", },
953 { .compatible = "rockchip,rk3399-spi", },
954 { .compatible = "rockchip,rv1108-spi", },
955 { .compatible = "rockchip,rv1126-spi", },
972 MODULE_AUTHOR("Addy Ke <addy.ke@rock-chips.com>");
973 MODULE_DESCRIPTION("ROCKCHIP SPI Controller Driver");