Commit cca112ec authored by Linus Torvalds's avatar Linus Torvalds

Merge tag 'spi-fix-v4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "The usual small smattering of driver specific fixes. A few bits that
  stand out here:

   - the R-Car patches adding fallbacks are just adding new compatible
     strings to the driver so that device trees are written in a more
     robustly future proof fashion, this isn't strictly a fix but it's
     just new IDs and it's better to get it into mainline sooner to
     improve the ABI

   - the DesignWare "switch to new API part 2" patch is actually a
     misleadingly titled fix for a bit that got missed in the original
     conversion"

* tag 'spi-fix-v4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: davinci: use dma_mapping_error()
  spi: spi-axi: Free resources on error path
  spi: pxa2xx: add missed break
  spi: dw-mid: switch to new dmaengine_terminate_* API (part 2)
  spi: dw: Make debugfs name unique between instances
  spi: sh-msiof: Do not use C++ style comment
  spi: armada-3700: Set mode bits correctly
  spi: armada-3700: fix unsigned compare than zero on irq
  spi: sh-msiof: Add R-Car Gen 2 and 3 fallback bindings
  spi: SPI_FSL_DSPI should depend on HAS_DMA
parents e90665a5 52cc720c
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
......@@ -61,7 +67,8 @@ Documentation/devicetree/bindings/pinctrl/renesas,*.
Example:
msiof0: [email protected] {
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>;
......
......@@ -378,6 +378,7 @@ config SPI_FSL_SPI
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
......
......@@ -800,7 +800,7 @@ static int a3700_spi_probe(struct platform_device *pdev)
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) {
......@@ -825,7 +825,7 @@ static int a3700_spi_probe(struct platform_device *pdev)
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);
......@@ -846,12 +846,13 @@ static int a3700_spi_probe(struct platform_device *pdev)
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);
......
......@@ -494,7 +494,8 @@ static int spi_engine_probe(struct platform_device *pdev)
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");
......
......@@ -646,7 +646,7 @@ static int davinci_spi_bufs(struct spi_device *spi, struct spi_transfer *t)
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;
}
......@@ -660,7 +660,7 @@ static int davinci_spi_bufs(struct spi_device *spi, struct spi_transfer *t)
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;
}
......
......@@ -274,11 +274,11 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, struct spi_transfer *xfer)
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);
}
}
......
......@@ -107,7 +107,10 @@ static const struct file_operations dw_spi_regs_ops = {
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;
......
......@@ -1690,6 +1690,7 @@ static int pxa2xx_spi_probe(struct platform_device *pdev)
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);
......
......@@ -973,14 +973,16 @@ static const struct sh_msiof_chipdata r8a779x_data = {
};
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);
......
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