[PATCH v3 44/59] dmaengine: xilinx: Split device_control
From: Maxime Ripard <hidden>
Date: 2014-10-22 15:58:59
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Subsystem:
dma generic offload engine subsystem, the rest · Maintainers:
Vinod Koul, Linus Torvalds
Split the device_control callback of the Xilinx VDMA driver to make use of the newly introduced callbacks, that will eventually be used to retrieve slave capabilities. Signed-off-by: Maxime Ripard <redacted> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- drivers/dma/xilinx/xilinx_vdma.c | 29 ++++++----------------------- 1 file changed, 6 insertions(+), 23 deletions(-)
diff --git a/drivers/dma/xilinx/xilinx_vdma.c b/drivers/dma/xilinx/xilinx_vdma.c
index a6e64767186e..1df06b45c798 100644
--- a/drivers/dma/xilinx/xilinx_vdma.c
+++ b/drivers/dma/xilinx/xilinx_vdma.c@@ -996,13 +996,17 @@ error: * xilinx_vdma_terminate_all - Halt the channel and free descriptors * @chan: Driver specific VDMA Channel pointer */ -static void xilinx_vdma_terminate_all(struct xilinx_vdma_chan *chan) +static int xilinx_vdma_terminate_all(struct dma_chan *dchan) { + struct xilinx_vdma_chan *chan = to_xilinx_chan(dchan); + /* Halt the DMA engine */ xilinx_vdma_halt(chan); /* Remove and free all of the descriptors in the lists */ xilinx_vdma_free_descriptors(chan); + + return 0; } /**
@@ -1070,27 +1074,6 @@ int xilinx_vdma_channel_set_config(struct dma_chan *dchan, } EXPORT_SYMBOL(xilinx_vdma_channel_set_config); -/** - * xilinx_vdma_device_control - Configure DMA channel of the device - * @dchan: DMA Channel pointer - * @cmd: DMA control command - * @arg: Channel configuration - * - * Return: '0' on success and failure value on error - */ -static int xilinx_vdma_device_control(struct dma_chan *dchan, - enum dma_ctrl_cmd cmd, unsigned long arg) -{ - struct xilinx_vdma_chan *chan = to_xilinx_chan(dchan); - - if (cmd != DMA_TERMINATE_ALL) - return -ENXIO; - - xilinx_vdma_terminate_all(chan); - - return 0; -} - /* ----------------------------------------------------------------------------- * Probe and remove */
@@ -1295,7 +1278,7 @@ static int xilinx_vdma_probe(struct platform_device *pdev) xilinx_vdma_free_chan_resources; xdev->common.device_prep_interleaved_dma = xilinx_vdma_dma_prep_interleaved; - xdev->common.device_control = xilinx_vdma_device_control; + xdev->common.device_terminate_all = xilinx_vdma_terminate_all; xdev->common.device_tx_status = xilinx_vdma_tx_status; xdev->common.device_issue_pending = xilinx_vdma_issue_pending;
--
2.1.1