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

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);