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authorLinus Torvalds <torvalds@linux-foundation.org>2015-07-24 13:13:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-07-24 13:13:28 -0700
commit365c83c3f56e5c7b161c041a487170f9a4840523 (patch)
tree234b12840732de29806b349c1d13e2813ae7f829
parent5b7f00a5967a3fdd8654ba6926930e672710ef63 (diff)
parent0c38ec716cdc0397f5225047c33a3144da93f5d8 (diff)
downloadlinux-stericsson-365c83c3f56e5c7b161c041a487170f9a4840523.tar.gz
Merge tag 'spi-fix-v4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown: "A small collection of pretty much unremarkable driver specific fixes here plus the addition of a new device ID to spidev which requires no other code changes" * tag 'spi-fix-v4.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: imx: Fix small DMA transfers spi: zynq: missing break statement spi: SPI_ZYNQMP_GQSPI should depend on HAS_DMA spi: spidev: add compatible value for LTC2488 spi: img-spfi: fix support for speeds up to 1/4th input clock
-rw-r--r--drivers/spi/Kconfig2
-rw-r--r--drivers/spi/spi-img-spfi.c2
-rw-r--r--drivers/spi/spi-imx.c5
-rw-r--r--drivers/spi/spi-zynqmp-gqspi.c1
-rw-r--r--drivers/spi/spidev.c1
5 files changed, 8 insertions, 3 deletions
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 0cae1694014d..b0f30fb68914 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -612,7 +612,7 @@ config SPI_XTENSA_XTFPGA
config SPI_ZYNQMP_GQSPI
tristate "Xilinx ZynqMP GQSPI controller"
- depends on SPI_MASTER
+ depends on SPI_MASTER && HAS_DMA
help
Enables Xilinx GQSPI controller driver for Zynq UltraScale+ MPSoC.
diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c
index 788e2b176a4f..acce90ac7371 100644
--- a/drivers/spi/spi-img-spfi.c
+++ b/drivers/spi/spi-img-spfi.c
@@ -40,6 +40,7 @@
#define SPFI_CONTROL_SOFT_RESET BIT(11)
#define SPFI_CONTROL_SEND_DMA BIT(10)
#define SPFI_CONTROL_GET_DMA BIT(9)
+#define SPFI_CONTROL_SE BIT(8)
#define SPFI_CONTROL_TMODE_SHIFT 5
#define SPFI_CONTROL_TMODE_MASK 0x7
#define SPFI_CONTROL_TMODE_SINGLE 0
@@ -491,6 +492,7 @@ static void img_spfi_config(struct spi_master *master, struct spi_device *spi,
else if (xfer->tx_nbits == SPI_NBITS_QUAD &&
xfer->rx_nbits == SPI_NBITS_QUAD)
val |= SPFI_CONTROL_TMODE_QUAD << SPFI_CONTROL_TMODE_SHIFT;
+ val |= SPFI_CONTROL_SE;
spfi_writel(spfi, val, SPFI_CONTROL);
}
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index eb7d3a6fb14c..f9deb84e4e55 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -201,8 +201,9 @@ static bool spi_imx_can_dma(struct spi_master *master, struct spi_device *spi,
{
struct spi_imx_data *spi_imx = spi_master_get_devdata(master);
- if (spi_imx->dma_is_inited && (transfer->len > spi_imx->rx_wml)
- && (transfer->len > spi_imx->tx_wml))
+ if (spi_imx->dma_is_inited
+ && transfer->len > spi_imx->rx_wml * sizeof(u32)
+ && transfer->len > spi_imx->tx_wml * sizeof(u32))
return true;
return false;
}
diff --git a/drivers/spi/spi-zynqmp-gqspi.c b/drivers/spi/spi-zynqmp-gqspi.c
index 87b20a511a6b..f23f36ebaf3d 100644
--- a/drivers/spi/spi-zynqmp-gqspi.c
+++ b/drivers/spi/spi-zynqmp-gqspi.c
@@ -214,6 +214,7 @@ static void zynqmp_gqspi_selectslave(struct zynqmp_qspi *instanceptr,
case GQSPI_SELECT_FLASH_CS_BOTH:
instanceptr->genfifocs = GQSPI_GENFIFO_CS_LOWER |
GQSPI_GENFIFO_CS_UPPER;
+ break;
case GQSPI_SELECT_FLASH_CS_UPPER:
instanceptr->genfifocs = GQSPI_GENFIFO_CS_UPPER;
break;
diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index dd616ff0ffc5..c7de64171c45 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -693,6 +693,7 @@ static struct class *spidev_class;
#ifdef CONFIG_OF
static const struct of_device_id spidev_dt_ids[] = {
{ .compatible = "rohm,dh2228fv" },
+ { .compatible = "lineartechnology,ltc2488" },
{},
};
MODULE_DEVICE_TABLE(of, spidev_dt_ids);