Renesas MSIOF spi controller
Required properties:
-- compatible : "renesas,msiof-<soctype>" for SoCs,
- "renesas,sh-msiof" for SuperH, or
- "renesas,sh-mobile-msiof" for SH Mobile series.
- Examples with soctypes are:
- "renesas,msiof-r8a7790" (R-Car H2)
+- compatible : "renesas,msiof-r8a7790" (R-Car H2)
"renesas,msiof-r8a7791" (R-Car M2-W)
"renesas,msiof-r8a7792" (R-Car V2H)
"renesas,msiof-r8a7793" (R-Car M2-N)
"renesas,msiof-r8a7794" (R-Car E2)
"renesas,msiof-r8a7796" (R-Car M3-W)
"renesas,msiof-sh73a0" (SH-Mobile AG5)
+ "renesas,sh-mobile-msiof" (generic SH-Mobile compatibile device)
+ "renesas,rcar-gen2-msiof" (generic R-Car Gen2 compatible device)
+ "renesas,rcar-gen3-msiof" (generic R-Car Gen3 compatible device)
+ "renesas,sh-msiof" (deprecated)
+
+ When compatible with the generic version, nodes
+ must list the SoC-specific version corresponding
+ to the platform first followed by the generic
+ version.
+
- reg : A list of offsets and lengths of the register sets for
the device.
If only one register set is present, it is to be used
Example:
msiof0: spi@e6e20000 {
- compatible = "renesas,msiof-r8a7791";
+ compatible = "renesas,msiof-r8a7791",
+ "renesas,rcar-gen2-msiof";
reg = <0 0xe6e20000 0 0x0064>;
interrupts = <0 156 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&mstp0_clks R8A7791_CLK_MSIOF0>;
config SPI_FSL_DSPI
tristate "Freescale DSPI controller"
select REGMAP_MMIO
+ depends on HAS_DMA
depends on SOC_VF610 || SOC_LS1021A || ARCH_LAYERSCAPE || COMPILE_TEST
help
This enables support for the Freescale DSPI controller in master
struct spi_master *master;
struct a3700_spi *spi;
u32 num_cs = 0;
- int ret = 0;
+ int irq, ret = 0;
master = spi_alloc_master(dev, sizeof(*spi));
if (!master) {
master->unprepare_message = a3700_spi_unprepare_message;
master->set_cs = a3700_spi_set_cs;
master->flags = SPI_MASTER_HALF_DUPLEX;
- master->mode_bits |= (SPI_RX_DUAL | SPI_RX_DUAL |
+ master->mode_bits |= (SPI_RX_DUAL | SPI_TX_DUAL |
SPI_RX_QUAD | SPI_TX_QUAD);
platform_set_drvdata(pdev, master);
goto error;
}
- spi->irq = platform_get_irq(pdev, 0);
- if (spi->irq < 0) {
- dev_err(dev, "could not get irq: %d\n", spi->irq);
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0) {
+ dev_err(dev, "could not get irq: %d\n", irq);
ret = -ENXIO;
goto error;
}
+ spi->irq = irq;
init_completion(&spi->done);
SPI_ENGINE_VERSION_MAJOR(version),
SPI_ENGINE_VERSION_MINOR(version),
SPI_ENGINE_VERSION_PATCH(version));
- return -ENODEV;
+ ret = -ENODEV;
+ goto err_put_master;
}
spi_engine->clk = devm_clk_get(&pdev->dev, "s_axi_aclk");
buf = t->rx_buf;
t->rx_dma = dma_map_single(&spi->dev, buf,
t->len, DMA_FROM_DEVICE);
- if (!t->rx_dma) {
+ if (dma_mapping_error(&spi->dev, !t->rx_dma)) {
ret = -EFAULT;
goto err_rx_map;
}
buf = (void *)t->tx_buf;
t->tx_dma = dma_map_single(&spi->dev, buf,
t->len, DMA_TO_DEVICE);
- if (!t->tx_dma) {
+ if (dma_mapping_error(&spi->dev, t->tx_dma)) {
ret = -EFAULT;
goto err_tx_map;
}
static void mid_spi_dma_stop(struct dw_spi *dws)
{
if (test_bit(TX_BUSY, &dws->dma_chan_busy)) {
- dmaengine_terminate_all(dws->txchan);
+ dmaengine_terminate_sync(dws->txchan);
clear_bit(TX_BUSY, &dws->dma_chan_busy);
}
if (test_bit(RX_BUSY, &dws->dma_chan_busy)) {
- dmaengine_terminate_all(dws->rxchan);
+ dmaengine_terminate_sync(dws->rxchan);
clear_bit(RX_BUSY, &dws->dma_chan_busy);
}
}
static int dw_spi_debugfs_init(struct dw_spi *dws)
{
- dws->debugfs = debugfs_create_dir("dw_spi", NULL);
+ char name[128];
+
+ snprintf(name, 128, "dw_spi-%s", dev_name(&dws->master->dev));
+ dws->debugfs = debugfs_create_dir(name, NULL);
if (!dws->debugfs)
return -ENOMEM;
pxa2xx_spi_write(drv_data, SSCR1, tmp);
tmp = SSCR0_SCR(2) | SSCR0_Motorola | SSCR0_DataSize(8);
pxa2xx_spi_write(drv_data, SSCR0, tmp);
+ break;
default:
tmp = SSCR1_RxTresh(RX_THRESH_DFLT) |
SSCR1_TxTresh(TX_THRESH_DFLT);
};
static const struct of_device_id sh_msiof_match[] = {
- { .compatible = "renesas,sh-msiof", .data = &sh_data },
{ .compatible = "renesas,sh-mobile-msiof", .data = &sh_data },
{ .compatible = "renesas,msiof-r8a7790", .data = &r8a779x_data },
{ .compatible = "renesas,msiof-r8a7791", .data = &r8a779x_data },
{ .compatible = "renesas,msiof-r8a7792", .data = &r8a779x_data },
{ .compatible = "renesas,msiof-r8a7793", .data = &r8a779x_data },
{ .compatible = "renesas,msiof-r8a7794", .data = &r8a779x_data },
+ { .compatible = "renesas,rcar-gen2-msiof", .data = &r8a779x_data },
{ .compatible = "renesas,msiof-r8a7796", .data = &r8a779x_data },
+ { .compatible = "renesas,rcar-gen3-msiof", .data = &r8a779x_data },
+ { .compatible = "renesas,sh-msiof", .data = &sh_data }, /* Deprecated */
{},
};
MODULE_DEVICE_TABLE(of, sh_msiof_match);