diff options
| -rw-r--r-- | drivers/spi/spi-imx.c | 17 | ||||
| -rw-r--r-- | drivers/spi/spi-rockchip.c | 3 |
2 files changed, 5 insertions, 15 deletions
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c index 6a4ff27f4357..c688efa95e29 100644 --- a/drivers/spi/spi-imx.c +++ b/drivers/spi/spi-imx.c @@ -204,8 +204,8 @@ static bool spi_imx_can_dma(struct spi_master *master, struct spi_device *spi, { struct spi_imx_data *spi_imx = spi_master_get_devdata(master); - if (spi_imx->dma_is_inited && - transfer->len > spi_imx->wml * sizeof(u32)) + if (spi_imx->dma_is_inited && transfer->len >= spi_imx->wml && + (transfer->len % spi_imx->wml) == 0) return true; return false; } @@ -919,8 +919,6 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx, struct dma_async_tx_descriptor *desc_tx = NULL, *desc_rx = NULL; int ret; unsigned long timeout; - u32 dma; - int left; struct spi_master *master = spi_imx->bitbang.master; struct sg_table *tx = &transfer->tx_sg, *rx = &transfer->rx_sg; @@ -954,13 +952,6 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx, /* Trigger the cspi module. */ spi_imx->dma_finished = 0; - dma = readl(spi_imx->base + MX51_ECSPI_DMA); - dma = dma & (~MX51_ECSPI_DMA_RXT_WML_MASK); - /* Change RX_DMA_LENGTH trigger dma fetch tail data */ - left = transfer->len % spi_imx->wml; - if (left) - writel(dma | (left << MX51_ECSPI_DMA_RXT_WML_OFFSET), - spi_imx->base + MX51_ECSPI_DMA); /* * Set these order to avoid potential RX overflow. The overflow may * happen if we enable SPI HW before starting RX DMA due to rescheduling @@ -992,10 +983,6 @@ static int spi_imx_dma_transfer(struct spi_imx_data *spi_imx, spi_imx->devtype_data->reset(spi_imx); dmaengine_terminate_all(master->dma_rx); } - dma &= ~MX51_ECSPI_DMA_RXT_WML_MASK; - writel(dma | - spi_imx->wml << MX51_ECSPI_DMA_RXT_WML_OFFSET, - spi_imx->base + MX51_ECSPI_DMA); } spi_imx->dma_finished = 1; diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c index 79a8bc4f6cec..7cb1b2d710c1 100644 --- a/drivers/spi/spi-rockchip.c +++ b/drivers/spi/spi-rockchip.c @@ -749,6 +749,7 @@ static int rockchip_spi_probe(struct platform_device *pdev) return 0; err_register_master: + pm_runtime_disable(&pdev->dev); if (rs->dma_tx.ch) dma_release_channel(rs->dma_tx.ch); if (rs->dma_rx.ch) @@ -778,6 +779,8 @@ static int rockchip_spi_remove(struct platform_device *pdev) if (rs->dma_rx.ch) dma_release_channel(rs->dma_rx.ch); + spi_master_put(master); + return 0; } |