diff options
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-bcm-qspi.c | 4 | ||||
| -rw-r--r-- | drivers/spi/spi-bcm2835.c | 14 | ||||
| -rw-r--r-- | drivers/spi/spi-dw-pci.c | 14 | ||||
| -rw-r--r-- | drivers/spi/spi-fsl-dspi.c | 4 | ||||
| -rw-r--r-- | drivers/spi/spi-uniphier.c | 1 | ||||
| -rw-r--r-- | drivers/spi/spi-zynq-qspi.c | 2 |
6 files changed, 33 insertions, 6 deletions
diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c index 902bdbfedea8..0dbfd2496ab8 100644 --- a/drivers/spi/spi-bcm-qspi.c +++ b/drivers/spi/spi-bcm-qspi.c @@ -343,7 +343,7 @@ static int bcm_qspi_bspi_set_flex_mode(struct bcm_qspi *qspi, { int bpc = 0, bpp = 0; u8 command = op->cmd.opcode; - int width = op->cmd.buswidth ? op->cmd.buswidth : SPI_NBITS_SINGLE; + int width = op->data.buswidth ? op->data.buswidth : SPI_NBITS_SINGLE; int addrlen = op->addr.nbytes; int flex_mode = 1; @@ -981,7 +981,7 @@ static int bcm_qspi_exec_mem_op(struct spi_mem *mem, if (mspi_read) return bcm_qspi_mspi_exec_mem_op(spi, op); - ret = bcm_qspi_bspi_set_mode(qspi, op, -1); + ret = bcm_qspi_bspi_set_mode(qspi, op, 0); if (!ret) ret = bcm_qspi_bspi_exec_mem_op(spi, op); diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c index 840b1b8ff3dc..dfdcebb38830 100644 --- a/drivers/spi/spi-bcm2835.c +++ b/drivers/spi/spi-bcm2835.c @@ -319,6 +319,13 @@ static void bcm2835_spi_reset_hw(struct spi_controller *ctlr) BCM2835_SPI_CS_INTD | BCM2835_SPI_CS_DMAEN | BCM2835_SPI_CS_TA); + /* + * Transmission sometimes breaks unless the DONE bit is written at the + * end of every transfer. The spec says it's a RO bit. Either the + * spec is wrong and the bit is actually of type RW1C, or it's a + * hardware erratum. + */ + cs |= BCM2835_SPI_CS_DONE; /* and reset RX/TX FIFOS */ cs |= BCM2835_SPI_CS_CLEAR_RX | BCM2835_SPI_CS_CLEAR_TX; @@ -477,7 +484,9 @@ static void bcm2835_spi_transfer_prologue(struct spi_controller *ctlr, bcm2835_wr_fifo_count(bs, bs->rx_prologue); bcm2835_wait_tx_fifo_empty(bs); bcm2835_rd_fifo_count(bs, bs->rx_prologue); - bcm2835_spi_reset_hw(ctlr); + bcm2835_wr(bs, BCM2835_SPI_CS, cs | BCM2835_SPI_CS_CLEAR_RX + | BCM2835_SPI_CS_CLEAR_TX + | BCM2835_SPI_CS_DONE); dma_sync_single_for_device(ctlr->dma_rx->device->dev, sg_dma_address(&tfr->rx_sg.sgl[0]), @@ -498,7 +507,8 @@ static void bcm2835_spi_transfer_prologue(struct spi_controller *ctlr, | BCM2835_SPI_CS_DMAEN); bcm2835_wr_fifo_count(bs, tx_remaining); bcm2835_wait_tx_fifo_empty(bs); - bcm2835_wr(bs, BCM2835_SPI_CS, cs | BCM2835_SPI_CS_CLEAR_TX); + bcm2835_wr(bs, BCM2835_SPI_CS, cs | BCM2835_SPI_CS_CLEAR_TX + | BCM2835_SPI_CS_DONE); } if (likely(!bs->tx_spillover)) { diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c index 9651679ee7f7..90e7b789da3b 100644 --- a/drivers/spi/spi-dw-pci.c +++ b/drivers/spi/spi-dw-pci.c @@ -19,6 +19,7 @@ struct spi_pci_desc { int (*setup)(struct dw_spi *); u16 num_cs; u16 bus_num; + u32 max_freq; }; static struct spi_pci_desc spi_pci_mid_desc_1 = { @@ -33,6 +34,12 @@ static struct spi_pci_desc spi_pci_mid_desc_2 = { .bus_num = 1, }; +static struct spi_pci_desc spi_pci_ehl_desc = { + .num_cs = 1, + .bus_num = -1, + .max_freq = 100000000, +}; + static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct dw_spi *dws; @@ -65,6 +72,7 @@ static int spi_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (desc) { dws->num_cs = desc->num_cs; dws->bus_num = desc->bus_num; + dws->max_freq = desc->max_freq; if (desc->setup) { ret = desc->setup(dws); @@ -125,8 +133,14 @@ static const struct pci_device_id pci_ids[] = { { PCI_VDEVICE(INTEL, 0x0800), (kernel_ulong_t)&spi_pci_mid_desc_1}, /* Intel MID platform SPI controller 2 */ { PCI_VDEVICE(INTEL, 0x0812), (kernel_ulong_t)&spi_pci_mid_desc_2}, + /* Intel Elkhart Lake PSE SPI controllers */ + { PCI_VDEVICE(INTEL, 0x4b84), (kernel_ulong_t)&spi_pci_ehl_desc}, + { PCI_VDEVICE(INTEL, 0x4b85), (kernel_ulong_t)&spi_pci_ehl_desc}, + { PCI_VDEVICE(INTEL, 0x4b86), (kernel_ulong_t)&spi_pci_ehl_desc}, + { PCI_VDEVICE(INTEL, 0x4b87), (kernel_ulong_t)&spi_pci_ehl_desc}, {}, }; +MODULE_DEVICE_TABLE(pci, pci_ids); static struct pci_driver dw_spi_driver = { .name = DRIVER_NAME, diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 53335ccc98f6..545fc8189fb0 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -886,9 +886,11 @@ static irqreturn_t dspi_interrupt(int irq, void *dev_id) trans_mode); } } + + return IRQ_HANDLED; } - return IRQ_HANDLED; + return IRQ_NONE; } static const struct of_device_id fsl_dspi_dt_ids[] = { diff --git a/drivers/spi/spi-uniphier.c b/drivers/spi/spi-uniphier.c index b32c77df5d49..4e99a0f25c29 100644 --- a/drivers/spi/spi-uniphier.c +++ b/drivers/spi/spi-uniphier.c @@ -214,6 +214,7 @@ static void uniphier_spi_setup_transfer(struct spi_device *spi, if (!priv->is_save_param || priv->mode != spi->mode) { uniphier_spi_set_mode(spi); priv->mode = spi->mode; + priv->is_save_param = false; } if (!priv->is_save_param || priv->bits_per_word != t->bits_per_word) { diff --git a/drivers/spi/spi-zynq-qspi.c b/drivers/spi/spi-zynq-qspi.c index c6bee67decb5..d812a215ae5c 100644 --- a/drivers/spi/spi-zynq-qspi.c +++ b/drivers/spi/spi-zynq-qspi.c @@ -695,7 +695,7 @@ static int zynq_qspi_probe(struct platform_device *pdev) ctlr->setup = zynq_qspi_setup_op; ctlr->max_speed_hz = clk_get_rate(xqspi->refclk) / 2; ctlr->dev.of_node = np; - ret = spi_register_controller(ctlr); + ret = devm_spi_register_controller(&pdev->dev, ctlr); if (ret) { dev_err(&pdev->dev, "spi_register_master failed\n"); goto clk_dis_all; |