vdmatest: xilinx: Zero out the configuration fields before configuring VDMA

The existing VDMA test client is failing to work with latest VDMA driver,
as some of the configuration fields of configuration structure are non-zero
and hence VDMA engine is not configured properly.  So this patch fixes
the issue.

Signed-off-by: Srikanth Thokala <sthokal@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/drivers/dma/xilinx/vdmatest.c b/drivers/dma/xilinx/vdmatest.c
index d5be0da86cdaf69c0d9c852aee82a8d8ef1a72b5..9376ab3b65c4c5c564435f87c62244bb6cf52ac1 100644 (file)
--- a/drivers/dma/xilinx/vdmatest.c
+++ b/drivers/dma/xilinx/vdmatest.c
@@ -292,19 +292,16 @@ static int vdmatest_slave_func(void *data)
                        sg_dma_len(&rx_sg[i]) = len;
                }
 
+               /* Zero out configuration */
+               memset(&config, 0, sizeof(struct xilinx_vdma_config));
+
                /* Set up hardware configuration information */
                config.vsize = vsize;
                config.hsize = hsize;
                config.stride = hsize;
                config.frm_cnt_en = 1;
                config.coalesc = frm_cnt * 10;
-               config.delay = 0;
-               /* The following is do-not-care, need to set to 0 */
-               config.frm_dly = 0;
                config.park = 1;
-               config.gen_lock = 0;
-               config.master = 0;
-               config.park_frm = 0;
                tx_dev->device_control(tx_chan, DMA_SLAVE_CONFIG,
                                        (unsigned long)&config);