iio: Added ST-sensors platform data to select the DRDY interrupt pin

This patch add support to redirect the DRDY interrupt on INT1 or INT2
on accelerometer and pressure sensors.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

4 files changed, 23 insertions, 7 deletions

diff --git a/drivers/iio/pressure/st_pressure.h b/drivers/iio/pressure/st_pressure.h
index 414e45ac9b9b..b0b630688da6 100644
--- a/drivers/iio/pressure/st_pressure.h
+++ b/drivers/iio/pressure/st_pressure.h
@@ -16,7 +16,16 @@
 
 #define LPS331AP_PRESS_DEV_NAME		"lps331ap"
 
-int st_press_common_probe(struct iio_dev *indio_dev);
+/**
+ * struct st_sensors_platform_data - default press platform data
+ * @drdy_int_pin: default press DRDY is available on INT1 pin.
+ */
+static const struct st_sensors_platform_data default_press_pdata = {
+	.drdy_int_pin = 1,
+};
+
+int st_press_common_probe(struct iio_dev *indio_dev,
+					struct st_sensors_platform_data *pdata);
 void st_press_common_remove(struct iio_dev *indio_dev);
 
 #ifdef CONFIG_IIO_BUFFER
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 3ffbc56917b4..81e2d5b030a6 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -58,7 +58,8 @@
 #define ST_PRESS_1_BDU_ADDR			0x20
 #define ST_PRESS_1_BDU_MASK			0x04
 #define ST_PRESS_1_DRDY_IRQ_ADDR		0x22
-#define ST_PRESS_1_DRDY_IRQ_MASK		0x04
+#define ST_PRESS_1_DRDY_IRQ_INT1_MASK		0x04
+#define ST_PRESS_1_DRDY_IRQ_INT2_MASK		0x20
 #define ST_PRESS_1_MULTIREAD_BIT		true
 #define ST_PRESS_1_TEMP_OFFSET			42500
 
@@ -116,7 +117,8 @@ static const struct st_sensors st_press_sensors[] = {
 		},
 		.drdy_irq = {
 			.addr = ST_PRESS_1_DRDY_IRQ_ADDR,
-			.mask = ST_PRESS_1_DRDY_IRQ_MASK,
+			.mask_int1 = ST_PRESS_1_DRDY_IRQ_INT1_MASK,
+			.mask_int2 = ST_PRESS_1_DRDY_IRQ_INT2_MASK,
 		},
 		.multi_read_bit = ST_PRESS_1_MULTIREAD_BIT,
 		.bootime = 2,
@@ -202,7 +204,8 @@ static const struct iio_trigger_ops st_press_trigger_ops = {
 #define ST_PRESS_TRIGGER_OPS NULL
 #endif
 
-int st_press_common_probe(struct iio_dev *indio_dev)
+int st_press_common_probe(struct iio_dev *indio_dev,
+				struct st_sensors_platform_data *plat_data)
 {
 	int err;
 	struct st_sensor_data *pdata = iio_priv(indio_dev);
@@ -224,7 +227,11 @@ int st_press_common_probe(struct iio_dev *indio_dev)
 						&pdata->sensor->fs.fs_avl[0];
 	pdata->odr = pdata->sensor->odr.odr_avl[0].hz;
 
-	err = st_sensors_init_sensor(indio_dev);
+	if (!plat_data)
+		plat_data =
+			(struct st_sensors_platform_data *)&default_press_pdata;
+
+	err = st_sensors_init_sensor(indio_dev, plat_data);
 	if (err < 0)
 		goto st_press_common_probe_error;
 
diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c
index 7cebcc73bfb0..306599307a96 100644
--- a/drivers/iio/pressure/st_pressure_i2c.c
+++ b/drivers/iio/pressure/st_pressure_i2c.c
@@ -36,7 +36,7 @@ static int st_press_i2c_probe(struct i2c_client *client,
 
 	st_sensors_i2c_configure(indio_dev, client, pdata);
 
-	err = st_press_common_probe(indio_dev);
+	err = st_press_common_probe(indio_dev, client->dev.platform_data);
 	if (err < 0)
 		goto st_press_common_probe_error;
 
diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c
index 17a14907940a..b2aded6d2108 100644
--- a/drivers/iio/pressure/st_pressure_spi.c
+++ b/drivers/iio/pressure/st_pressure_spi.c
@@ -35,7 +35,7 @@ static int st_press_spi_probe(struct spi_device *spi)
 
 	st_sensors_spi_configure(indio_dev, spi, pdata);
 
-	err = st_press_common_probe(indio_dev);
+	err = st_press_common_probe(indio_dev, spi->dev.platform_data);
 	if (err < 0)
 		goto st_press_common_probe_error;