spi: Revert "spi/xilinx: Remove iowrite/ioread wrappers"

This reverts commit 99082eab63449f9dfa83d5157fa6d78bfc1b04d7 since it
breaks the build due to differing implementations of iowrite() and
ioread().

Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 24 insertions, 4 deletions

diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c
index 2ca55f6b5158..d1901d578823 100644
--- a/drivers/spi/spi-xilinx.c
+++ b/drivers/spi/spi-xilinx.c
@@ -95,6 +95,26 @@ struct xilinx_spi {
         void (*write_fn)(u32, void __iomem *);
 };
 
+static void xspi_write32(u32 val, void __iomem *addr)
+{
+        iowrite32(val, addr);
+}
+
+static unsigned int xspi_read32(void __iomem *addr)
+{
+        return ioread32(addr);
+}
+
+static void xspi_write32_be(u32 val, void __iomem *addr)
+{
+        iowrite32be(val, addr);
+}
+
+static unsigned int xspi_read32_be(void __iomem *addr)
+{
+        return ioread32be(addr);
+}
+
 static void xilinx_spi_tx(struct xilinx_spi *xspi)
 {
         if (!xspi->tx_ptr) {
@@ -388,15 +408,15 @@ static int xilinx_spi_probe(struct platform_device *pdev)
          * Setup little endian helper functions first and try to use them
          * and check if bit was correctly setup or not.
          */
-        xspi->read_fn = ioread32;
-        xspi->write_fn = iowrite32;
+        xspi->read_fn = xspi_read32;
+        xspi->write_fn = xspi_write32;
 
         xspi->write_fn(XSPI_CR_LOOP, xspi->regs + XSPI_CR_OFFSET);
         tmp = xspi->read_fn(xspi->regs + XSPI_CR_OFFSET);
         tmp &= XSPI_CR_LOOP;
         if (tmp != XSPI_CR_LOOP) {
-                xspi->read_fn = ioread32be;
-                xspi->write_fn = iowrite32be;
+                xspi->read_fn = xspi_read32_be;
+                xspi->write_fn = xspi_write32_be;
         }
 
         master->bits_per_word_mask = SPI_BPW_MASK(bits_per_word);