From: Jarkko Nikula Date: Thu, 3 Mar 2016 11:02:14 +0000 (+0200) Subject: spi: pxa2xx: Use newer more explicit DMAengine terminate API X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=590745017ef3658b33a581fe0c6d60b70e92df85;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git spi: pxa2xx: Use newer more explicit DMAengine terminate API Commit b36f09c3c441 ("dmaengine: Add transfer termination synchronization support") marked dmaengine_terminate_all() as deprecated and is being replaced by explicit synchronous and asynchronous terminate functions. Here DMA termination are done in two cases: FIFO overrun and module removal. FIFO overrun is handled in interrupt context and converting dmaengine_terminate_all() to dmaengine_terminate_async() does the same than before. Using synchronous termination in module removal however adds a bit more robustness as it waits all completion callbacks have finished. Although it looks all known DMA engines used with spi-pxa2xx don't implement device_synchronize() callback so this too appears to be a no-op in practice. Signed-off-by: Jarkko Nikula Reviewed-by: Mika Westerberg Acked-by: Robert Jarzmik Signed-off-by: Mark Brown --- diff --git a/drivers/spi/spi-pxa2xx-dma.c b/drivers/spi/spi-pxa2xx-dma.c index bd8b369a343c..365fc22c3572 100644 --- a/drivers/spi/spi-pxa2xx-dma.c +++ b/drivers/spi/spi-pxa2xx-dma.c @@ -254,8 +254,8 @@ irqreturn_t pxa2xx_spi_dma_transfer(struct driver_data *drv_data) if (status & SSSR_ROR) { dev_err(&drv_data->pdev->dev, "FIFO overrun\n"); - dmaengine_terminate_all(drv_data->rx_chan); - dmaengine_terminate_all(drv_data->tx_chan); + dmaengine_terminate_async(drv_data->rx_chan); + dmaengine_terminate_async(drv_data->tx_chan); pxa2xx_spi_dma_transfer_complete(drv_data, true); return IRQ_HANDLED; @@ -331,13 +331,13 @@ int pxa2xx_spi_dma_setup(struct driver_data *drv_data) void pxa2xx_spi_dma_release(struct driver_data *drv_data) { if (drv_data->rx_chan) { - dmaengine_terminate_all(drv_data->rx_chan); + dmaengine_terminate_sync(drv_data->rx_chan); dma_release_channel(drv_data->rx_chan); sg_free_table(&drv_data->rx_sgt); drv_data->rx_chan = NULL; } if (drv_data->tx_chan) { - dmaengine_terminate_all(drv_data->tx_chan); + dmaengine_terminate_sync(drv_data->tx_chan); dma_release_channel(drv_data->tx_chan); sg_free_table(&drv_data->tx_sgt); drv_data->tx_chan = NULL;