iio: adc: ad9361_conv: Skip digital tune on AXI slave cores

In MCS setups, the secondary AD936x won't reliably work unless the complete MCS sequence has been performed. So we skip tuning on the secondary device. It's up to the user responsibility to run the MCS sequence and rerun the digital tuning afterwards. The libad9361 has all the required logic and can handle this. Signed-off-by: Michael Hennerich <[email protected]>
analogdevicesinc · Jan 11, 2022 · 8077957 · 8077957
1 parent 839d73c
commit 8077957
Showing 1 changed file with 6 additions and 4 deletions.
diff --git a/drivers/iio/adc/ad9361_conv.c b/drivers/iio/adc/ad9361_conv.c
@@ -694,14 +694,16 @@ static int ad9361_post_setup(struct iio_dev *indio_dev)
 
 	flags = 0;
 
-	ret = ad9361_dig_tune(phy, (axiadc_read(st, ADI_AXI_REG_ID)) ?
-		0 : 61440000, flags);
+	ret = ad9361_dig_tune(phy, 61440000, axiadc_read(st, ADI_AXI_REG_ID) ?
+		flags | RESTORE_DEFAULT : flags);
 	if (ret < 0)
 		goto error;
 
 	if (flags & (DO_IDELAY | DO_ODELAY)) {
-		ret = ad9361_dig_tune(phy, (axiadc_read(st, ADI_AXI_REG_ID)) ?
-			0 : 61440000, flags & BE_VERBOSE);
+		ret = ad9361_dig_tune(phy, 61440000,
+			axiadc_read(st, ADI_AXI_REG_ID) ?
+			flags | RESTORE_DEFAULT | BE_VERBOSE :
+			flags | BE_VERBOSE);
 		if (ret < 0)
 			goto error;
 	}