1 files changed, 11 insertions, 68 deletions

diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c
index a362425400ea..d018a4aac3a1 100644
--- a/drivers/spi/spi-orion.c
+++ b/drivers/spi/spi-orion.c
@@ -42,8 +42,6 @@
 struct orion_spi {
         struct spi_master       *master;
         void __iomem            *base;
-        unsigned int            max_speed;
-        unsigned int            min_speed;
         struct clk              *clk;
 };
 
@@ -74,23 +72,6 @@ orion_spi_clrbits(struct orion_spi *orion_spi, u32 reg, u32 mask)
         writel(val, reg_addr);
 }
 
-static int orion_spi_set_transfer_size(struct orion_spi *orion_spi, int size)
-{
-        if (size == 16) {
-                orion_spi_setbits(orion_spi, ORION_SPI_IF_CONFIG_REG,
-                                  ORION_SPI_IF_8_16_BIT_MODE);
-        } else if (size == 8) {
-                orion_spi_clrbits(orion_spi, ORION_SPI_IF_CONFIG_REG,
-                                  ORION_SPI_IF_8_16_BIT_MODE);
-        } else {
-                pr_debug("Bad bits per word value %d (only 8 or 16 are allowed).\n",
-                        size);
-                return -EINVAL;
-        }
-
-        return 0;
-}
-
 static int orion_spi_baudrate_set(struct spi_device *spi, unsigned int speed)
 {
         u32 tclk_hz;
@@ -169,7 +150,14 @@ orion_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t)
         if (rc)
                 return rc;
 
-        return orion_spi_set_transfer_size(orion_spi, bits_per_word);
+        if (bits_per_word == 16)
+                orion_spi_setbits(orion_spi, ORION_SPI_IF_CONFIG_REG,
+                                  ORION_SPI_IF_8_16_BIT_MODE);
+        else
+                orion_spi_clrbits(orion_spi, ORION_SPI_IF_CONFIG_REG,
+                                  ORION_SPI_IF_8_16_BIT_MODE);
+
+        return 0;
 }
 
 static void orion_spi_set_cs(struct orion_spi *orion_spi, int enable)
@@ -259,11 +247,9 @@ orion_spi_write_read_16bit(struct spi_device *spi,
 static unsigned int
 orion_spi_write_read(struct spi_device *spi, struct spi_transfer *xfer)
 {
-        struct orion_spi *orion_spi;
         unsigned int count;
         int word_len;
 
-        orion_spi = spi_master_get_devdata(spi->master);
         word_len = spi->bits_per_word;
         count = xfer->len;
 
@@ -309,27 +295,6 @@ static int orion_spi_transfer_one_message(struct spi_master *master,
                 goto msg_done;
 
         list_for_each_entry(t, &m->transfers, transfer_list) {
-                /* make sure buffer length is even when working in 16
-                 * bit mode*/
-                if ((t->bits_per_word == 16) && (t->len & 1)) {
-                        dev_err(&spi->dev,
-                                "message rejected : "
-                                "odd data length %d while in 16 bit mode\n",
-                                t->len);
-                        status = -EIO;
-                        goto msg_done;
-                }
-
-                if (t->speed_hz && t->speed_hz < orion_spi->min_speed) {
-                        dev_err(&spi->dev,
-                                "message rejected : "
-                                "device min speed (%d Hz) exceeds "
-                                "required transfer speed (%d Hz)\n",
-                                orion_spi->min_speed, t->speed_hz);
-                        status = -EIO;
-                        goto msg_done;
-                }
-
                 if (par_override || t->speed_hz || t->bits_per_word) {
                         par_override = 1;
                         status = orion_spi_setup_transfer(spi, t);
@@ -374,28 +339,6 @@ static int orion_spi_reset(struct orion_spi *orion_spi)
         return 0;
 }
 
-static int orion_spi_setup(struct spi_device *spi)
-{
-        struct orion_spi *orion_spi;
-
-        orion_spi = spi_master_get_devdata(spi->master);
-
-        if ((spi->max_speed_hz == 0)
-                        || (spi->max_speed_hz > orion_spi->max_speed))
-                spi->max_speed_hz = orion_spi->max_speed;
-
-        if (spi->max_speed_hz < orion_spi->min_speed) {
-                dev_err(&spi->dev, "setup: requested speed too low %d Hz\n",
-                        spi->max_speed_hz);
-                return -EINVAL;
-        }
-
-        /*
-         * baudrate & width will be set orion_spi_setup_transfer
-         */
-        return 0;
-}
-
 static int orion_spi_probe(struct platform_device *pdev)
 {
         struct spi_master *master;
@@ -424,9 +367,9 @@ static int orion_spi_probe(struct platform_device *pdev)
         /* we support only mode 0, and no options */
         master->mode_bits = SPI_CPHA | SPI_CPOL;
 
-        master->setup = orion_spi_setup;
         master->transfer_one_message = orion_spi_transfer_one_message;
         master->num_chipselect = ORION_NUM_CHIPSELECTS;
+        master->bits_per_word_mask = SPI_BPW_MASK(8) | SPI_BPW_MASK(16);
 
         platform_set_drvdata(pdev, master);
 
@@ -442,8 +385,8 @@ static int orion_spi_probe(struct platform_device *pdev)
         clk_prepare(spi->clk);
         clk_enable(spi->clk);
         tclk_hz = clk_get_rate(spi->clk);
-        spi->max_speed = DIV_ROUND_UP(tclk_hz, 4);
-        spi->min_speed = DIV_ROUND_UP(tclk_hz, 30);
+        master->max_speed_hz = DIV_ROUND_UP(tclk_hz, 4);
+        master->min_speed_hz = DIV_ROUND_UP(tclk_hz, 30);
 
         r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
         spi->base = devm_ioremap_resource(&pdev->dev, r);