iio: cf_axi_dds: add cf_axi_dds_dma_fifo_en() helper

The intent is to make the cf_axi_dds_state struct opaque. To do that, the `pl_dma_fifo_en` needs an accessor. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
analogdevicesinc · Jul 9, 2019 · 228c133 · 228c133
1 parent 112794d
commit 228c133
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Showing 3 changed files with 9 additions and 1 deletion.
diff --git a/drivers/iio/frequency/cf_axi_dds.c b/drivers/iio/frequency/cf_axi_dds.c
@@ -39,6 +39,12 @@
 
 static const unsigned int interpolation_factors_available[] = {1, 8};
 
+bool cf_axi_dds_dma_fifo_en(struct cf_axi_dds_state *st)
+{
+	return st->pl_dma_fifo_en;
+}
+EXPORT_SYMBOL(cf_axi_dds_dma_fifo_en);
+
 void dds_write(struct cf_axi_dds_state *st,
 	       unsigned int reg, unsigned int val)
 {

diff --git a/drivers/iio/frequency/cf_axi_dds.h b/drivers/iio/frequency/cf_axi_dds.h
@@ -305,4 +305,6 @@ unsigned int dds_slave_read(struct cf_axi_dds_state *st, unsigned int reg);
 void dds_master_write(struct cf_axi_dds_state *st,
 		      unsigned int reg, unsigned int val);
 
+bool cf_axi_dds_dma_fifo_en(struct cf_axi_dds_state *st);
+
 #endif /* ADI_AXI_DDS_H_ */
diff --git a/drivers/iio/frequency/cf_axi_dds_buffer_stream.c b/drivers/iio/frequency/cf_axi_dds_buffer_stream.c
@@ -29,7 +29,7 @@ static int dds_buffer_submit_block(struct iio_dma_buffer_queue *queue,
 	if (block->block.bytes_used) {
 		bool enable_fifo = false;
 
-		if (st->pl_dma_fifo_en &&
+		if (cf_axi_dds_dma_fifo_en(st) &&
 			(block->block.flags & IIO_BUFFER_BLOCK_FLAG_CYCLIC)) {
 			block->block.flags &= ~IIO_BUFFER_BLOCK_FLAG_CYCLIC;
 			enable_fifo = true;