[PATCH 2/8] spi: cadence-quadspi: Add QSPI support for Pensando Elba SoC
From: Brad Larson <hidden>
Date: 2021-03-04 03:44:53
Also in:
linux-arm-kernel, linux-devicetree, linux-gpio, linux-spi, lkml
Subsystem:
spi subsystem, the rest · Maintainers:
Mark Brown, Linus Torvalds
Add QSPI controller support fo Pensando Elba SoC. Signed-off-by: Brad Larson <redacted> --- drivers/spi/spi-cadence-quadspi.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c
index 442cc7c53a47..fb0d9b0bd596 100644
--- a/drivers/spi/spi-cadence-quadspi.c
+++ b/drivers/spi/spi-cadence-quadspi.c@@ -1353,6 +1353,7 @@ static int cqspi_request_mmap_dma(struct cqspi_st *cqspi) cqspi->rx_chan = dma_request_chan_by_mask(&mask); if (IS_ERR(cqspi->rx_chan)) { int ret = PTR_ERR(cqspi->rx_chan); + cqspi->rx_chan = NULL; return dev_err_probe(&cqspi->pdev->dev, ret, "No Rx DMA available\n"); }
@@ -1632,6 +1633,10 @@ static const struct cqspi_driver_platdata intel_lgm_qspi = { .quirks = CQSPI_DISABLE_DAC_MODE, }; +static const struct cqspi_driver_platdata pen_cdns_qspi = { + .quirks = CQSPI_NEEDS_WR_DELAY | CQSPI_DISABLE_DAC_MODE, +}; + static const struct of_device_id cqspi_dt_ids[] = { { .compatible = "cdns,qspi-nor",
@@ -1649,6 +1654,10 @@ static const struct of_device_id cqspi_dt_ids[] = { .compatible = "intel,lgm-qspi", .data = &intel_lgm_qspi, }, + { + .compatible = "pensando,cdns-qspi", + .data = &pen_cdns_qspi, + }, { /* end of table */ } };
--
2.17.1