dmaengine: ste_dma40: indicate granularity on channels
The ste_dma40 has burst level granularity on the residue
registers, which is necessary for some clients to know,
notably the UART. Before this patch we get this message:
uart-pl011 80007000.uart: RX DMA disabled - no residue processing
This patch fixes it.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 2f0852d..a6620b6 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -2838,6 +2838,7 @@ static void d40_ops_init(struct d40_base *base, struct dma_device *dev)
dev->device_pause = d40_pause;
dev->device_resume = d40_resume;
dev->device_terminate_all = d40_terminate_all;
+ dev->residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
dev->dev = base->dev;
}
