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