Various DMA users call the dmaengine_slave_config() and expect it to
succeed, but that can only succeed if .device_config is implemented.
Add empty device_config function rather than patching all the places
which use dmaengine_slave_config().
Signed-off-by: Marek Vasut <marex@xxxxxxx>
Cc: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Kedareswara rao Appana <appana.durga.rao@xxxxxxxxxx>
Cc: Michal Simek <monstr@xxxxxxxxx>
Cc: Vinod Koul <vkoul@xxxxxxxxxx>
---
V2: Fix copy-paste error in kerneldoc function name
V3: Use k.org email address for Vinod
---
drivers/dma/xilinx/xilinx_dma.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index 213e1a7314b77..97cbde4e0a292 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -1657,6 +1657,17 @@ static void xilinx_dma_issue_pending(struct dma_chan *dchan)
spin_unlock_irqrestore(&chan->lock, flags);
}
+/**
+ * xilinx_dma_device_config - Configure the DMA channel
+ * @dchan: DMA channel
+ * @config: channel configuration
+ */
+static int xilinx_dma_device_config(struct dma_chan *dchan,
+ struct dma_slave_config *config)
+{
+ return 0;
+}
+
/**
* xilinx_dma_complete_descriptor - Mark the active descriptor as complete
* @chan : xilinx DMA channel
@@ -3095,6 +3106,7 @@ static int xilinx_dma_probe(struct platform_device *pdev)
xdev->common.device_synchronize = xilinx_dma_synchronize;
xdev->common.device_tx_status = xilinx_dma_tx_status;
xdev->common.device_issue_pending = xilinx_dma_issue_pending;
+ xdev->common.device_config = xilinx_dma_device_config;
if (xdev->dma_config->dmatype == XDMA_TYPE_AXIDMA) {
dma_cap_set(DMA_CYCLIC, xdev->common.cap_mask);
xdev->common.device_prep_slave_sg = xilinx_dma_prep_slave_sg;
--
2.30.2
