The patch titled Blackfin SPI Driver: add a few more DMA debug messages has been removed from the -mm tree. Its filename was blackfin-spi-driver-add-a-few-more-dma-debug-messages.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: Blackfin SPI Driver: add a few more DMA debug messages From: Mike Frysinger <vapier.adi@xxxxxxxxx> Because of DMA hardware issue, we were trying to use software workaround. This patch add some useful debug messages to help us debugging the DMA code. Signed-off-by: Mike Frysinger <vapier.adi@xxxxxxxxx> Signed-off-by: Bryan Wu <cooloney@xxxxxxxxxx> Cc: David Brownell <david-b@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/spi/spi_bfin5xx.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff -puN drivers/spi/spi_bfin5xx.c~blackfin-spi-driver-add-a-few-more-dma-debug-messages drivers/spi/spi_bfin5xx.c --- a/drivers/spi/spi_bfin5xx.c~blackfin-spi-driver-add-a-few-more-dma-debug-messages +++ a/drivers/spi/spi_bfin5xx.c @@ -559,9 +559,13 @@ static irqreturn_t dma_irq_handler(int i struct driver_data *drv_data = dev_id; struct chip_data *chip = drv_data->cur_chip; struct spi_message *msg = drv_data->cur_msg; + unsigned short dmastat = get_dma_curr_irqstat(drv_data->dma_channel); u16 spistat = read_STAT(drv_data); - dev_dbg(&drv_data->pdev->dev, "in dma_irq_handler\n"); + dev_dbg(&drv_data->pdev->dev, + "in dma_irq_handler dmastat:0x%x spistat:0x%x\n", + dmastat, spistat); + clear_dma_irqstat(drv_data->dma_channel); /* Wait for DMA to complete */ @@ -631,6 +635,7 @@ static void pump_transfers(unsigned long /* Handle for abort */ if (message->state == ERROR_STATE) { + dev_dbg(&drv_data->pdev->dev, "transfer: we've hit an error\n"); message->status = -EIO; giveback(drv_data); return; @@ -638,6 +643,7 @@ static void pump_transfers(unsigned long /* Handle end of message */ if (message->state == DONE_STATE) { + dev_dbg(&drv_data->pdev->dev, "transfer: all done!\n"); message->status = 0; giveback(drv_data); return; @@ -645,6 +651,7 @@ static void pump_transfers(unsigned long /* Delay if requested at end of transfer */ if (message->state == RUNNING_STATE) { + dev_dbg(&drv_data->pdev->dev, "transfer: still running ...\n"); previous = list_entry(transfer->transfer_list.prev, struct spi_transfer, transfer_list); if (previous->delay_usecs) @@ -806,7 +813,8 @@ static void pump_transfers(unsigned long dma_config = (RESTART | dma_width | DI_EN); if (drv_data->rx != NULL) { /* set transfer mode, and enable SPI */ - dev_dbg(&drv_data->pdev->dev, "doing DMA in.\n"); + dev_dbg(&drv_data->pdev->dev, "doing DMA in to %p (size %zx)\n", + drv_data->rx, drv_data->len_in_bytes); /* invalidate caches, if needed */ if (bfin_addr_dcachable((unsigned long) drv_data->rx)) _ Patches currently in -mm which might be from vapier.adi@xxxxxxxxx are origin.patch linux-next.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html