[PATCH v2 1/2] iio: adc: ti-ads112c14: parameterize GPIO register field macros

[David Lechner (TI)]

Replace the per-pin GPIO register field macros with parameterized ones.
This will be used in a later patch to access the fields by GPIO offset.

Signed-off-by: David Lechner (TI) <dlechner@xxxxxxxxxxxx>
---
 drivers/iio/adc/ti-ads112c14.c | 23 +++++++----------------
 1 file changed, 7 insertions(+), 16 deletions(-)

diff --git a/drivers/iio/adc/ti-ads112c14.c b/drivers/iio/adc/ti-ads112c14.c
index 3c877126b0be..cbd82de03127 100644
--- a/drivers/iio/adc/ti-ads112c14.c
+++ b/drivers/iio/adc/ti-ads112c14.c
@@ -63,10 +63,7 @@
 
 #define ADS112C14_REG_STATUS_LSB			0x03
 #define   ADS112C14_STATUS_LSB_CONV_COUNT		GENMASK(7, 4)
-#define   ADS112C14_STATUS_LSB_GPIO3_DAT_IN		BIT(3)
-#define   ADS112C14_STATUS_LSB_GPIO2_DAT_IN		BIT(2)
-#define   ADS112C14_STATUS_LSB_GPIO1_DAT_IN		BIT(1)
-#define   ADS112C14_STATUS_LSB_GPIO0_DAT_IN		BIT(0)
+#define   ADS112C14_STATUS_LSB_GPIO_DAT_IN(n)		BIT(n)
 
 #define ADS112C14_REG_CONVERSION_CTRL			0x04
 #define   ADS112C14_CONVERSION_CTRL_RESET		GENMASK(7, 2)
@@ -133,10 +130,7 @@
 #define   ADS112C14_DIGITAL_CFG_CODING			BIT(1)
 
 #define ADS112C14_REG_GPIO_CFG				0x0B
-#define   ADS112C14_GPIO_CFG_GPIO3_CFG			GENMASK(7, 6)
-#define   ADS112C14_GPIO_CFG_GPIO2_CFG			GENMASK(5, 4)
-#define   ADS112C14_GPIO_CFG_GPIO1_CFG			GENMASK(3, 2)
-#define   ADS112C14_GPIO_CFG_GPIO0_CFG			GENMASK(1, 0)
+#define   ADS112C14_GPIO_CFG_GPIO_CFG(n)		(GENMASK(1, 0) << (2 * (n)))
 #define     ADS112C14_GPIO_CFG_GPIO_CFG_DISABLED	  0
 #define     ADS112C14_GPIO_CFG_GPIO_CFG_INPUT		  1
 #define     ADS112C14_GPIO_CFG_GPIO_CFG_OUTPUT_PUSH_PULL  2
@@ -147,10 +141,7 @@
 #define     ADS112C14_GPIO_DATA_OUTPUT_GPIO3_SRC_DAT_OUT  0
 #define     ADS112C14_GPIO_DATA_OUTPUT_GPIO3_SRC_DRDY	  1
 #define   ADS112C14_GPIO_DATA_OUTPUT_GPIO2_SRC		BIT(6)
-#define   ADS112C14_GPIO_DATA_OUTPUT_GPIO3_DAT_OUT	BIT(3)
-#define   ADS112C14_GPIO_DATA_OUTPUT_GPIO2_DAT_OUT	BIT(2)
-#define   ADS112C14_GPIO_DATA_OUTPUT_GPIO1_DAT_OUT	BIT(1)
-#define   ADS112C14_GPIO_DATA_OUTPUT_GPIO0_DAT_OUT	BIT(0)
+#define   ADS112C14_GPIO_DATA_OUTPUT_GPIO_DAT_OUT(n)	BIT(n)
 
 #define ADS112C14_REG_IDAC_MAG_CFG			0x0D
 #define   ADS112C14_IDAC_MAG_CFG_I2MAG			GENMASK(7, 4)
@@ -2520,8 +2511,8 @@ static int ads112c14_probe(struct i2c_client *client)
 		 * order to support open drain option here.
 		 */
 		ret = regmap_update_bits(data->regmap, ADS112C14_REG_GPIO_CFG,
-					 ADS112C14_GPIO_CFG_GPIO3_CFG,
-					 FIELD_PREP(ADS112C14_GPIO_CFG_GPIO3_CFG,
+					 ADS112C14_GPIO_CFG_GPIO_CFG(3),
+					 FIELD_PREP(ADS112C14_GPIO_CFG_GPIO_CFG(3),
 						    ADS112C14_GPIO_CFG_GPIO_CFG_OUTPUT_PUSH_PULL));
 		if (ret)
 			return ret;
@@ -2556,8 +2547,8 @@ static int ads112c14_probe(struct i2c_client *client)
 
 	if (clk) {
 		ret = regmap_update_bits(data->regmap, ADS112C14_REG_GPIO_CFG,
-					 ADS112C14_GPIO_CFG_GPIO3_CFG,
-					 FIELD_PREP(ADS112C14_GPIO_CFG_GPIO3_CFG,
+					 ADS112C14_GPIO_CFG_GPIO_CFG(3),
+					 FIELD_PREP(ADS112C14_GPIO_CFG_GPIO_CFG(3),
 						    ADS112C14_GPIO_CFG_GPIO_CFG_INPUT));
 		if (ret)
 			return ret;

-- 
2.53.0