dmaengine: dw-axi-dmac: set coherent mask

Add support for setting dma coherent mask, dma mask is set to 64 bit

Signed-off-by: Pandith N <pandith.n@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20211001140812.24977-4-pandith.n@intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
index f46fd9895a13a1820df77324dc22e274d7b7406e..79572ec532ef22e2792f781caf3d06301596ce0d 100644 (file)
--- a/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
+++ b/drivers/dma/dw-axi-dmac/dw-axi-dmac-platform.c
@@ -212,12 +212,16 @@ static inline bool axi_chan_is_hw_enable(struct axi_dma_chan *chan)
 
 static void axi_dma_hw_init(struct axi_dma_chip *chip)
 {
+       int ret;
        u32 i;
 
        for (i = 0; i < chip->dw->hdata->nr_channels; i++) {
                axi_chan_irq_disable(&chip->dw->chan[i], DWAXIDMAC_IRQ_ALL);
                axi_chan_disable(&chip->dw->chan[i]);
        }
+       ret = dma_set_mask_and_coherent(chip->dev, DMA_BIT_MASK(64));
+       if (ret)
+               dev_warn(chip->dev, "Unable to set coherent mask\n");
 }
 
 static u32 axi_chan_get_xfer_width(struct axi_dma_chan *chan, dma_addr_t src,