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-rw-r--r--drivers/staging/poch/poch.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/staging/poch/poch.c b/drivers/staging/poch/poch.c
index b54760f41a4b..0a3eca14075e 100644
--- a/drivers/staging/poch/poch.c
+++ b/drivers/staging/poch/poch.c
@@ -126,9 +126,11 @@
#define FPGA_INT_TX_ACQ_DONE (0x1 << 1)
#define FPGA_INT_RX_ACQ_DONE (0x1)
-#define FPGA_RX_ADC_CTL_REG 0x214
-#define FPGA_RX_ADC_CTL_CONT_CAP (0x0)
-#define FPGA_RX_ADC_CTL_SNAP_CAP (0x1)
+#define FPGA_RX_CTL_REG 0x214
+#define FPGA_RX_CTL_FIFO_FLUSH (0x1 << 9)
+#define FPGA_RX_CTL_SYNTH_DATA (0x1 << 8)
+#define FPGA_RX_CTL_CONT_CAP (0x0 << 1)
+#define FPGA_RX_CTL_SNAP_CAP (0x1 << 1)
#define FPGA_RX_ARM_REG 0x21C
@@ -819,6 +821,11 @@ static int poch_open(struct inode *inode, struct file *filp)
iowrite32(FPGA_TX_CTL_FIFO_FLUSH
| FPGA_TX_CTL_OUTPUT_CARDBUS,
fpga + FPGA_TX_CTL_REG);
+ } else {
+ /* Flush RX FIFO and output data to cardbus. */
+ iowrite32(FPGA_RX_CTL_CONT_CAP
+ | FPGA_RX_CTL_FIFO_FLUSH,
+ fpga + FPGA_RX_CTL_REG);
}
atomic_inc(&channel->inited);