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path: root/drivers/spi/spi-pxa2xx.c
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Diffstat (limited to 'drivers/spi/spi-pxa2xx.c')
-rw-r--r--drivers/spi/spi-pxa2xx.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 86138e410..fe07c0592 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -570,9 +570,8 @@ static void giveback(struct driver_data *drv_data)
/* see if the next and current messages point
* to the same chip
*/
- if (next_msg && next_msg->spi != msg->spi)
- next_msg = NULL;
- if (!next_msg || msg->state == ERROR_STATE)
+ if ((next_msg && next_msg->spi != msg->spi) ||
+ msg->state == ERROR_STATE)
cs_deassert(drv_data);
}
@@ -928,6 +927,7 @@ static void pump_transfers(unsigned long data)
u32 dma_thresh = drv_data->cur_chip->dma_threshold;
u32 dma_burst = drv_data->cur_chip->dma_burst_size;
u32 change_mask = pxa2xx_spi_get_ssrc1_change_mask(drv_data);
+ int err;
/* Get current state information */
message = drv_data->cur_msg;
@@ -1047,7 +1047,12 @@ static void pump_transfers(unsigned long data)
/* Ensure we have the correct interrupt handler */
drv_data->transfer_handler = pxa2xx_spi_dma_transfer;
- pxa2xx_spi_dma_prepare(drv_data, dma_burst);
+ err = pxa2xx_spi_dma_prepare(drv_data, dma_burst);
+ if (err) {
+ message->status = err;
+ giveback(drv_data);
+ return;
+ }
/* Clear status and start DMA engine */
cr1 = chip->cr1 | dma_thresh | drv_data->dma_cr1;
@@ -1543,7 +1548,6 @@ static int pxa2xx_spi_probe(struct platform_device *pdev)
drv_data->pdev = pdev;
drv_data->ssp = ssp;
- master->dev.parent = &pdev->dev;
master->dev.of_node = pdev->dev.of_node;
/* the spi->mode bits understood by this driver: */
master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LOOP;
@@ -1556,6 +1560,7 @@ static int pxa2xx_spi_probe(struct platform_device *pdev)
master->unprepare_transfer_hardware = pxa2xx_spi_unprepare_transfer;
master->fw_translate_cs = pxa2xx_spi_fw_translate_cs;
master->auto_runtime_pm = true;
+ master->flags = SPI_MASTER_MUST_RX | SPI_MASTER_MUST_TX;
drv_data->ssp_type = ssp->type;