5 files changed, 18 insertions, 28 deletions

diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 6529df1a498c..b7aac84e5224 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -129,8 +129,9 @@ config AD7173
 	tristate "Analog Devices AD7173 driver"
 	depends on SPI_MASTER
 	select AD_SIGMA_DELTA
-	select GPIO_REGMAP if GPIOLIB
-	select REGMAP_SPI if GPIOLIB
+	select GPIOLIB
+	select GPIO_REGMAP
+	select REGMAP_SPI
 	help
 	  Say yes here to build support for Analog Devices AD7173 and similar ADC
 	  Currently supported models:
@@ -1546,6 +1547,7 @@ config TI_ADS1298
 	tristate "Texas Instruments ADS1298"
 	depends on SPI
 	select IIO_BUFFER
+	select IIO_KFIFO_BUF
 	help
 	  If you say yes here you get support for Texas Instruments ADS1298
 	  medical ADC chips
diff --git a/drivers/iio/adc/ad7173.c b/drivers/iio/adc/ad7173.c
index 69de5886474c..b3e6bd2a55d7 100644
--- a/drivers/iio/adc/ad7173.c
+++ b/drivers/iio/adc/ad7173.c
@@ -230,10 +230,8 @@ struct ad7173_state {
 	unsigned long long *config_cnts;
 	struct clk *ext_clk;
 	struct clk_hw int_clk_hw;
-#if IS_ENABLED(CONFIG_GPIOLIB)
 	struct regmap *reg_gpiocon_regmap;
 	struct gpio_regmap *gpio_regmap;
-#endif
 };
 
 static unsigned int ad4115_sinc5_data_rates[] = {
@@ -288,8 +286,6 @@ static const char *const ad7173_clk_sel[] = {
 	"ext-clk", "xtal"
 };
 
-#if IS_ENABLED(CONFIG_GPIOLIB)
-
 static const struct regmap_range ad7173_range_gpio[] = {
 	regmap_reg_range(AD7173_REG_GPIO, AD7173_REG_GPIO),
 };
@@ -543,12 +539,6 @@ static int ad7173_gpio_init(struct ad7173_state *st)
 
 	return 0;
 }
-#else
-static int ad7173_gpio_init(struct ad7173_state *st)
-{
-	return 0;
-}
-#endif /* CONFIG_GPIOLIB */
 
 static struct ad7173_state *ad_sigma_delta_to_ad7173(struct ad_sigma_delta *sd)
 {
@@ -1797,10 +1787,7 @@ static int ad7173_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	if (IS_ENABLED(CONFIG_GPIOLIB))
-		return ad7173_gpio_init(st);
-
-	return 0;
+	return ad7173_gpio_init(st);
 }
 
 static const struct of_device_id ad7173_of_match[] = {
diff --git a/drivers/iio/adc/ad7606.c b/drivers/iio/adc/ad7606.c
index 703556eb7257..8ed65a35b486 100644
--- a/drivers/iio/adc/ad7606.c
+++ b/drivers/iio/adc/ad7606.c
@@ -727,17 +727,16 @@ static int ad7606_scan_direct(struct iio_dev *indio_dev, unsigned int ch,
 		goto error_ret;
 
 	chan = &indio_dev->channels[ch + 1];
-	if (chan->scan_type.sign == 'u') {
-		if (realbits > 16)
-			*val = st->data.buf32[ch];
-		else
-			*val = st->data.buf16[ch];
-	} else {
-		if (realbits > 16)
-			*val = sign_extend32(st->data.buf32[ch], realbits - 1);
-		else
-			*val = sign_extend32(st->data.buf16[ch], realbits - 1);
-	}
+
+	if (realbits > 16)
+		*val = st->data.buf32[ch];
+	else
+		*val = st->data.buf16[ch];
+
+	*val &= GENMASK(realbits - 1, 0);
+
+	if (chan->scan_type.sign == 's')
+		*val = sign_extend32(*val, realbits - 1);
 
 error_ret:
 	if (!st->gpio_convst) {
diff --git a/drivers/iio/adc/ad7606_spi.c b/drivers/iio/adc/ad7606_spi.c
index 179115e90988..b37458ce3c70 100644
--- a/drivers/iio/adc/ad7606_spi.c
+++ b/drivers/iio/adc/ad7606_spi.c
@@ -155,7 +155,7 @@ static int ad7606_spi_reg_write(struct ad7606_state *st,
 	struct spi_device *spi = to_spi_device(st->dev);
 
 	st->d16[0] = cpu_to_be16((st->bops->rd_wr_cmd(addr, 1) << 8) |
-				  (val & 0x1FF));
+				  (val & 0xFF));
 
 	return spi_write(spi, &st->d16[0], sizeof(st->d16[0]));
 }
diff --git a/drivers/iio/adc/ad7944.c b/drivers/iio/adc/ad7944.c
index 2f949fe55873..37a137bd8357 100644
--- a/drivers/iio/adc/ad7944.c
+++ b/drivers/iio/adc/ad7944.c
@@ -377,6 +377,8 @@ static int ad7944_single_conversion(struct ad7944_adc *adc,
 
 	if (chan->scan_type.sign == 's')
 		*val = sign_extend32(*val, chan->scan_type.realbits - 1);
+	else
+		*val &= GENMASK(chan->scan_type.realbits - 1, 0);
 
 	return IIO_VAL_INT;
 }