spi/bfin_spi: fix up some unused/misleading comments

Reported-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 2 insertions, 6 deletions

diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c
index 5e07f498b495..045c82a36164 100644
--- a/drivers/spi/spi_bfin5xx.c
+++ b/drivers/spi/spi_bfin5xx.c
@@ -44,9 +44,6 @@ MODULE_LICENSE("GPL");
 #define QUEUE_RUNNING   0
 #define QUEUE_STOPPED   1
 
-/* Value to send if no TX value is supplied */
-#define SPI_IDLE_TXVAL 0x0000
-
 struct driver_data {
         /* Driver model hookup */
         struct platform_device *pdev;
@@ -581,7 +578,7 @@ static void bfin_spi_pump_transfers(unsigned long data)
                         udelay(previous->delay_usecs);
         }
 
-        /* Setup the transfer state based on the type of transfer */
+        /* Flush any existing transfers that may be sitting in the hardware */
         if (bfin_spi_flush(drv_data) == 0) {
                 dev_err(&drv_data->pdev->dev, "pump_transfers: flush failed\n");
                 message->status = -EIO;
@@ -661,7 +658,6 @@ static void bfin_spi_pump_transfers(unsigned long data)
                 "transfer: drv_data->write is %p, chip->write is %p\n",
                 drv_data->write, chip->write);
 
-        /* speed and width has been set on per message */
         message->state = RUNNING_STATE;
         dma_config = 0;
 
@@ -966,7 +962,7 @@ static u16 ssel[][MAX_SPI_SSEL] = {
         P_SPI2_SSEL6, P_SPI2_SSEL7},
 };
 
-/* first setup for new devices */
+/* setup for devices (may be called multiple times -- not just first setup) */
 static int bfin_spi_setup(struct spi_device *spi)
 {
         struct bfin5xx_spi_chip *chip_info;