@@ -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;