iio: adc: cf_axi_adc_core: Fix IIO_VAL_INT_64 value composition

Properly cast values. Fixes: dced6c9 ("iio: adc: cf_axi_adc_core: Support for 64-bit IIO_CHAN_INFO_SAMP_FREQ") Signed-off-by: Michael Hennerich <[email protected]>
analogdevicesinc · Aug 16, 2023 · dc7f003 · dc7f003
1 parent 19a5317
commit dc7f003
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/drivers/iio/adc/cf_axi_adc_core.c b/drivers/iio/adc/cf_axi_adc_core.c
@@ -568,7 +568,8 @@ static int axiadc_read_raw(struct iio_dev *indio_dev,
 	case IIO_CHAN_INFO_SAMP_FREQ:
 		*val2 = 0;
 		ret = conv->read_raw(indio_dev, chan, val, val2, m);
-		llval = (u64)*val2 << 32 | *val;
+		llval = (((u64)*val2) << 32) | (u32)*val;
+
 		if (ret < 0 || !llval) {
 			tmp = ADI_TO_CLK_FREQ(axiadc_read(st, ADI_REG_CLK_FREQ));
 			llval = tmp * 100000000ULL /* FIXME */ * ADI_TO_CLK_RATIO(axiadc_read(st, ADI_REG_CLK_RATIO));