[PATCH 0/4] Add support to LIS3DHH accel sensor

[PATCH 0/4] Add support to LIS3DHH accel sensor

[Lorenzo Bianconi]

Separate data-ready open-drain configuration parameters for
INT1 and INT2

This patchset depends on 'Add support to LIS2DW12 accel sensor' patchset
not yet applied on testing branch

Lorenzo Bianconi (4):
  iio: st_sensors: split open-drain parameters for irq1 and irq2
  iio: common: st_sensors: check odr address value in
    st_sensors_set_odr()
  iio: accel: add support to LIS3DHH
  dt-bindings: iio: accel: add LIS3DHH device bindings

 .../devicetree/bindings/iio/st-sensors.txt         |  1 +
 drivers/iio/accel/st_accel.h                       |  2 +
 drivers/iio/accel/st_accel_core.c                  | 70 ++++++++++++++++++++--
 drivers/iio/accel/st_accel_spi.c                   |  5 ++
 drivers/iio/common/st_sensors/st_sensors_core.c    | 24 ++++++--
 drivers/iio/pressure/st_pressure_core.c            | 14 +++--
 include/linux/iio/common/st_sensors.h              | 28 +++++----
 7 files changed, 115 insertions(+), 29 deletions(-)

-- 
2.14.1

[PATCH 0/4] Add support to LIS3DHH accel sensor

[Lorenzo Bianconi]

Separate data-ready open-drain configuration parameters for
INT1 and INT2

This patchset depends on 'Add support to LIS2DW12 accel sensor' patchset
not yet applied on testing branch

Lorenzo Bianconi (4):
  iio: st_sensors: split open-drain parameters for irq1 and irq2
  iio: common: st_sensors: check odr address value in
    st_sensors_set_odr()
  iio: accel: add support to LIS3DHH
  dt-bindings: iio: accel: add LIS3DHH device bindings

 .../devicetree/bindings/iio/st-sensors.txt         |  1 +
 drivers/iio/accel/st_accel.h                       |  2 +
 drivers/iio/accel/st_accel_core.c                  | 70 ++++++++++++++++++++--
 drivers/iio/accel/st_accel_spi.c                   |  5 ++
 drivers/iio/common/st_sensors/st_sensors_core.c    | 24 ++++++--
 drivers/iio/pressure/st_pressure_core.c            | 14 +++--
 include/linux/iio/common/st_sensors.h              | 28 +++++----
 7 files changed, 115 insertions(+), 29 deletions(-)

-- 
2.14.1

[PATCH 1/4] iio: st_sensors: split open-drain parameters for irq1 and irq2

[Lorenzo Bianconi]

Define st_sensor_int_drdy structure in st_sensor_data_ready_irq in order
to contain irq line parameters of the device.
Moreover separate data-ready open-drain configuration parameters for INT1
and INT2 pins in st_sensor_data_ready_irq data structure.
That change will be used to properly support LIS3DHH accel sensor.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi-qxv4g6HH51o@public.gmane.org>
---
 drivers/iio/accel/st_accel_core.c               | 18 ++++++++++------
 drivers/iio/common/st_sensors/st_sensors_core.c | 21 ++++++++++++++-----
 drivers/iio/pressure/st_pressure_core.c         | 14 +++++++------
 include/linux/iio/common/st_sensors.h           | 28 ++++++++++++++-----------
 4 files changed, 52 insertions(+), 29 deletions(-)

diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 731ec3a4c82b..c88db25a1aff 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -236,15 +236,17 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.int1 = {
 				.addr = 0x22,
 				.mask = 0x02,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
 			},
 			.int2 = {
 				.addr = 0x22,
 				.mask = 0x10,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
 			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x80,
-			.addr_od = 0x22,
-			.mask_od = 0x40,
 			.stat_drdy = {
 				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
 				.mask = 0x07,
@@ -468,15 +470,17 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.int1 = {
 				.addr = 0x22,
 				.mask = 0x04,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
 			},
 			.int2 = {
 				.addr = 0x22,
 				.mask = 0x20,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
 			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x80,
-			.addr_od = 0x22,
-			.mask_od = 0x40,
 			.stat_drdy = {
 				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
 				.mask = 0x07,
@@ -750,15 +754,17 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.int1 = {
 				.addr = 0x23,
 				.mask = 0x01,
+				.addr_od = 0x22,
+				.mask_od = 0x20,
 			},
 			.int2 = {
 				.addr = 0x24,
 				.mask = 0x01,
+				.addr_od = 0x22,
+				.mask_od = 0x20,
 			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x08,
-			.addr_od = 0x22,
-			.mask_od = 0x20,
 			.stat_drdy = {
 				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
 				.mask = 0x01,
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 6657160b5a73..40dfdfc0906b 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -319,7 +319,8 @@ static int st_sensors_set_drdy_int_pin(struct iio_dev *indio_dev,
 	}
 
 	if (pdata->open_drain) {
-		if (!sdata->sensor_settings->drdy_irq.addr_od)
+		if (!sdata->sensor_settings->drdy_irq.int1.addr_od &&
+		    !sdata->sensor_settings->drdy_irq.int2.addr_od)
 			dev_err(&indio_dev->dev,
 				"open drain requested but unsupported.\n");
 		else
@@ -446,11 +447,21 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
 	}
 
 	if (sdata->int_pin_open_drain) {
+		u8 addr, mask;
+
+		if (sdata->drdy_int_pin == 1) {
+			addr = sdata->sensor_settings->drdy_irq.int1.addr_od;
+			mask = sdata->sensor_settings->drdy_irq.int1.mask_od;
+		} else {
+			addr = sdata->sensor_settings->drdy_irq.int2.addr_od;
+			mask = sdata->sensor_settings->drdy_irq.int2.mask_od;
+		}
+
 		dev_info(&indio_dev->dev,
-			 "set interrupt line to open drain mode\n");
-		err = st_sensors_write_data_with_mask(indio_dev,
-				sdata->sensor_settings->drdy_irq.addr_od,
-				sdata->sensor_settings->drdy_irq.mask_od, 1);
+			 "set interrupt line to open drain mode on pin %d\n",
+			 sdata->drdy_int_pin);
+		err = st_sensors_write_data_with_mask(indio_dev, addr,
+						      mask, 1);
 		if (err < 0)
 			return err;
 	}
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 15ad6054d9f6..349e5c713c03 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -283,15 +283,17 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
 			.int1 = {
 				.addr = 0x22,
 				.mask = 0x04,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
 			},
 			.int2 = {
 				.addr = 0x22,
 				.mask = 0x20,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
 			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x80,
-			.addr_od = 0x22,
-			.mask_od = 0x40,
 			.stat_drdy = {
 				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
 				.mask = 0x03,
@@ -404,11 +406,11 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
 			.int1 = {
 				.addr = 0x23,
 				.mask = 0x01,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
 			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x80,
-			.addr_od = 0x22,
-			.mask_od = 0x40,
 			.stat_drdy = {
 				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
 				.mask = 0x03,
@@ -473,11 +475,11 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
 			.int1 = {
 				.addr = 0x12,
 				.mask = 0x04,
+				.addr_od = 0x12,
+				.mask_od = 0x40,
 			},
 			.addr_ihl = 0x12,
 			.mask_ihl = 0x80,
-			.addr_od = 0x12,
-			.mask_od = 0x40,
 			.stat_drdy = {
 				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
 				.mask = 0x03,
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index e6c646d5d6d4..f9bd6e8ab138 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -130,32 +130,36 @@ struct st_sensor_das {
 	u8 mask;
 };
 
+/**
+ * struct st_sensor_int_drdy - ST sensor device drdy line parameters
+ * @addr: address of INT drdy register.
+ * @mask: mask to enable drdy line.
+ * @addr_od: address to enable/disable Open Drain on the INT line.
+ * @mask_od: mask to enable/disable Open Drain on the INT line.
+ */
+struct st_sensor_int_drdy {
+	u8 addr;
+	u8 mask;
+	u8 addr_od;
+	u8 mask_od;
+};
+
 /**
  * struct st_sensor_data_ready_irq - ST sensor device data-ready interrupt
  * struct int1 - data-ready configuration register for INT1 pin.
  * struct int2 - data-ready configuration register for INT2 pin.
  * @addr_ihl: address to enable/disable active low on the INT lines.
  * @mask_ihl: mask to enable/disable active low on the INT lines.
- * @addr_od: address to enable/disable Open Drain on the INT lines.
- * @mask_od: mask to enable/disable Open Drain on the INT lines.
  * struct stat_drdy - status register of DRDY (data ready) interrupt.
  * struct ig1 - represents the Interrupt Generator 1 of sensors.
  * @en_addr: address of the enable ig1 register.
  * @en_mask: mask to write the on/off value for enable.
  */
 struct st_sensor_data_ready_irq {
-	struct {
-		u8 addr;
-		u8 mask;
-	} int1;
-	struct {
-		u8 addr;
-		u8 mask;
-	} int2;
+	struct st_sensor_int_drdy int1;
+	struct st_sensor_int_drdy int2;
 	u8 addr_ihl;
 	u8 mask_ihl;
-	u8 addr_od;
-	u8 mask_od;
 	struct {
 		u8 addr;
 		u8 mask;
-- 
2.14.1

[PATCH 1/4] iio: st_sensors: split open-drain parameters for irq1 and irq2

[Lorenzo Bianconi]

Define st_sensor_int_drdy structure in st_sensor_data_ready_irq in order
to contain irq line parameters of the device.
Moreover separate data-ready open-drain configuration parameters for INT1
and INT2 pins in st_sensor_data_ready_irq data structure.
That change will be used to properly support LIS3DHH accel sensor.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
---
 drivers/iio/accel/st_accel_core.c               | 18 ++++++++++------
 drivers/iio/common/st_sensors/st_sensors_core.c | 21 ++++++++++++++-----
 drivers/iio/pressure/st_pressure_core.c         | 14 +++++++------
 include/linux/iio/common/st_sensors.h           | 28 ++++++++++++++-----------
 4 files changed, 52 insertions(+), 29 deletions(-)

diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 731ec3a4c82b..c88db25a1aff 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -236,15 +236,17 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.int1 = {
 				.addr = 0x22,
 				.mask = 0x02,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
 			},
 			.int2 = {
 				.addr = 0x22,
 				.mask = 0x10,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
 			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x80,
-			.addr_od = 0x22,
-			.mask_od = 0x40,
 			.stat_drdy = {
 				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
 				.mask = 0x07,
@@ -468,15 +470,17 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.int1 = {
 				.addr = 0x22,
 				.mask = 0x04,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
 			},
 			.int2 = {
 				.addr = 0x22,
 				.mask = 0x20,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
 			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x80,
-			.addr_od = 0x22,
-			.mask_od = 0x40,
 			.stat_drdy = {
 				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
 				.mask = 0x07,
@@ -750,15 +754,17 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.int1 = {
 				.addr = 0x23,
 				.mask = 0x01,
+				.addr_od = 0x22,
+				.mask_od = 0x20,
 			},
 			.int2 = {
 				.addr = 0x24,
 				.mask = 0x01,
+				.addr_od = 0x22,
+				.mask_od = 0x20,
 			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x08,
-			.addr_od = 0x22,
-			.mask_od = 0x20,
 			.stat_drdy = {
 				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
 				.mask = 0x01,
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 6657160b5a73..40dfdfc0906b 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -319,7 +319,8 @@ static int st_sensors_set_drdy_int_pin(struct iio_dev *indio_dev,
 	}
 
 	if (pdata->open_drain) {
-		if (!sdata->sensor_settings->drdy_irq.addr_od)
+		if (!sdata->sensor_settings->drdy_irq.int1.addr_od &&
+		    !sdata->sensor_settings->drdy_irq.int2.addr_od)
 			dev_err(&indio_dev->dev,
 				"open drain requested but unsupported.\n");
 		else
@@ -446,11 +447,21 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
 	}
 
 	if (sdata->int_pin_open_drain) {
+		u8 addr, mask;
+
+		if (sdata->drdy_int_pin == 1) {
+			addr = sdata->sensor_settings->drdy_irq.int1.addr_od;
+			mask = sdata->sensor_settings->drdy_irq.int1.mask_od;
+		} else {
+			addr = sdata->sensor_settings->drdy_irq.int2.addr_od;
+			mask = sdata->sensor_settings->drdy_irq.int2.mask_od;
+		}
+
 		dev_info(&indio_dev->dev,
-			 "set interrupt line to open drain mode\n");
-		err = st_sensors_write_data_with_mask(indio_dev,
-				sdata->sensor_settings->drdy_irq.addr_od,
-				sdata->sensor_settings->drdy_irq.mask_od, 1);
+			 "set interrupt line to open drain mode on pin %d\n",
+			 sdata->drdy_int_pin);
+		err = st_sensors_write_data_with_mask(indio_dev, addr,
+						      mask, 1);
 		if (err < 0)
 			return err;
 	}
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 15ad6054d9f6..349e5c713c03 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -283,15 +283,17 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
 			.int1 = {
 				.addr = 0x22,
 				.mask = 0x04,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
 			},
 			.int2 = {
 				.addr = 0x22,
 				.mask = 0x20,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
 			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x80,
-			.addr_od = 0x22,
-			.mask_od = 0x40,
 			.stat_drdy = {
 				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
 				.mask = 0x03,
@@ -404,11 +406,11 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
 			.int1 = {
 				.addr = 0x23,
 				.mask = 0x01,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
 			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x80,
-			.addr_od = 0x22,
-			.mask_od = 0x40,
 			.stat_drdy = {
 				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
 				.mask = 0x03,
@@ -473,11 +475,11 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
 			.int1 = {
 				.addr = 0x12,
 				.mask = 0x04,
+				.addr_od = 0x12,
+				.mask_od = 0x40,
 			},
 			.addr_ihl = 0x12,
 			.mask_ihl = 0x80,
-			.addr_od = 0x12,
-			.mask_od = 0x40,
 			.stat_drdy = {
 				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
 				.mask = 0x03,
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index e6c646d5d6d4..f9bd6e8ab138 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -130,32 +130,36 @@ struct st_sensor_das {
 	u8 mask;
 };
 
+/**
+ * struct st_sensor_int_drdy - ST sensor device drdy line parameters
+ * @addr: address of INT drdy register.
+ * @mask: mask to enable drdy line.
+ * @addr_od: address to enable/disable Open Drain on the INT line.
+ * @mask_od: mask to enable/disable Open Drain on the INT line.
+ */
+struct st_sensor_int_drdy {
+	u8 addr;
+	u8 mask;
+	u8 addr_od;
+	u8 mask_od;
+};
+
 /**
  * struct st_sensor_data_ready_irq - ST sensor device data-ready interrupt
  * struct int1 - data-ready configuration register for INT1 pin.
  * struct int2 - data-ready configuration register for INT2 pin.
  * @addr_ihl: address to enable/disable active low on the INT lines.
  * @mask_ihl: mask to enable/disable active low on the INT lines.
- * @addr_od: address to enable/disable Open Drain on the INT lines.
- * @mask_od: mask to enable/disable Open Drain on the INT lines.
  * struct stat_drdy - status register of DRDY (data ready) interrupt.
  * struct ig1 - represents the Interrupt Generator 1 of sensors.
  * @en_addr: address of the enable ig1 register.
  * @en_mask: mask to write the on/off value for enable.
  */
 struct st_sensor_data_ready_irq {
-	struct {
-		u8 addr;
-		u8 mask;
-	} int1;
-	struct {
-		u8 addr;
-		u8 mask;
-	} int2;
+	struct st_sensor_int_drdy int1;
+	struct st_sensor_int_drdy int2;
 	u8 addr_ihl;
 	u8 mask_ihl;
-	u8 addr_od;
-	u8 mask_od;
 	struct {
 		u8 addr;
 		u8 mask;
-- 
2.14.1

[PATCH 2/4] iio: common: st_sensors: check odr address value in st_sensors_set_odr()

[Lorenzo Bianconi]

Do not try to configure sample frequency if the sensor do not export
odr register address in register map. That change will be used to
properly support LIS3DHH accel sensor.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi-qxv4g6HH51o@public.gmane.org>
---
 drivers/iio/common/st_sensors/st_sensors_core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 40dfdfc0906b..57db19182e95 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -93,6 +93,9 @@ int st_sensors_set_odr(struct iio_dev *indio_dev, unsigned int odr)
 	struct st_sensor_odr_avl odr_out = {0, 0};
 	struct st_sensor_data *sdata = iio_priv(indio_dev);
 
+	if (!sdata->sensor_settings->odr.addr)
+		return 0;
+
 	err = st_sensors_match_odr(sdata->sensor_settings, odr, &odr_out);
 	if (err < 0)
 		goto st_sensors_match_odr_error;
-- 
2.14.1

[PATCH 2/4] iio: common: st_sensors: check odr address value in st_sensors_set_odr()

[Lorenzo Bianconi]

Do not try to configure sample frequency if the sensor do not export
odr register address in register map. That change will be used to
properly support LIS3DHH accel sensor.

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
---
 drivers/iio/common/st_sensors/st_sensors_core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 40dfdfc0906b..57db19182e95 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -93,6 +93,9 @@ int st_sensors_set_odr(struct iio_dev *indio_dev, unsigned int odr)
 	struct st_sensor_odr_avl odr_out = {0, 0};
 	struct st_sensor_data *sdata = iio_priv(indio_dev);
 
+	if (!sdata->sensor_settings->odr.addr)
+		return 0;
+
 	err = st_sensors_match_odr(sdata->sensor_settings, odr, &odr_out);
 	if (err < 0)
 		goto st_sensors_match_odr_error;
-- 
2.14.1

[PATCH 3/4] iio: accel: add support to LIS3DHH

[Lorenzo Bianconi]

add support to STMicroelectronics LIS3DHH accel sensor

http://www.st.com/resource/en/datasheet/lis3dhh.pdf
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi-qxv4g6HH51o@public.gmane.org>
---
 drivers/iio/accel/st_accel.h      |  2 ++
 drivers/iio/accel/st_accel_core.c | 52 +++++++++++++++++++++++++++++++++++++++
 drivers/iio/accel/st_accel_spi.c  |  5 ++++
 3 files changed, 59 insertions(+)

diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h
index 2ed0f60418c0..2f931e4837e5 100644
--- a/drivers/iio/accel/st_accel.h
+++ b/drivers/iio/accel/st_accel.h
@@ -33,6 +33,7 @@ enum st_accel_type {
 	LIS331DL,
 	LIS3LV02DL,
 	LIS2DW12,
+	LIS3DHH,
 	ST_ACCEL_MAX,
 };
 
@@ -54,6 +55,7 @@ enum st_accel_type {
 #define LIS3L02DQ_ACCEL_DEV_NAME	"lis3l02dq"
 #define LNG2DM_ACCEL_DEV_NAME		"lng2dm"
 #define LIS2DW12_ACCEL_DEV_NAME		"lis2dw12"
+#define LIS3DHH_ACCEL_DEV_NAME		"lis3dhh"
 
 /**
 * struct st_sensors_platform_data - default accel platform data
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index c88db25a1aff..460aa58e0159 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -777,6 +777,58 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 		.multi_read_bit = false,
 		.bootime = 2,
 	},
+	{
+		.wai = 0x11,
+		.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
+		.sensors_supported = {
+			[0] = LIS3DHH_ACCEL_DEV_NAME,
+		},
+		.ch = (struct iio_chan_spec *)st_accel_16bit_channels,
+		.odr = {
+			/* just ODR = 1100Hz available */
+			.odr_avl = {
+				{ .hz = 1100, .value = 0x00, },
+			},
+		},
+		.pw = {
+			.addr = 0x20,
+			.mask = 0x80,
+			.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
+			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
+		},
+		.fs = {
+			.fs_avl = {
+				[0] = {
+					.num = ST_ACCEL_FS_AVL_2G,
+					.gain = IIO_G_TO_M_S_2(76),
+				},
+			},
+		},
+		.bdu = {
+			.addr = 0x20,
+			.mask = 0x01,
+		},
+		.drdy_irq = {
+			.int1 = {
+				.addr = 0x21,
+				.mask = 0x80,
+				.addr_od = 0x23,
+				.mask_od = 0x04,
+			},
+			.int2 = {
+				.addr = 0x22,
+				.mask = 0x80,
+				.addr_od = 0x23,
+				.mask_od = 0x08,
+			},
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x07,
+			},
+		},
+		.multi_read_bit = false,
+		.bootime = 2,
+	},
 };
 
 static int st_accel_read_raw(struct iio_dev *indio_dev,
diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
index 7692da49e59f..dcc9bd243a52 100644
--- a/drivers/iio/accel/st_accel_spi.c
+++ b/drivers/iio/accel/st_accel_spi.c
@@ -86,6 +86,10 @@ static const struct of_device_id st_accel_of_match[] = {
 		.compatible = "st,lis2dw12",
 		.data = LIS2DW12_ACCEL_DEV_NAME,
 	},
+	{
+		.compatible = "st,lis3dhh",
+		.data = LIS3DHH_ACCEL_DEV_NAME,
+	},
 	{}
 };
 MODULE_DEVICE_TABLE(of, st_accel_of_match);
@@ -138,6 +142,7 @@ static const struct spi_device_id st_accel_id_table[] = {
 	{ LIS331DL_ACCEL_DEV_NAME },
 	{ LIS3LV02DL_ACCEL_DEV_NAME },
 	{ LIS2DW12_ACCEL_DEV_NAME },
+	{ LIS3DHH_ACCEL_DEV_NAME },
 	{},
 };
 MODULE_DEVICE_TABLE(spi, st_accel_id_table);
-- 
2.14.1

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[PATCH 3/4] iio: accel: add support to LIS3DHH

[Lorenzo Bianconi]

add support to STMicroelectronics LIS3DHH accel sensor

http://www.st.com/resource/en/datasheet/lis3dhh.pdf
Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
---
 drivers/iio/accel/st_accel.h      |  2 ++
 drivers/iio/accel/st_accel_core.c | 52 +++++++++++++++++++++++++++++++++++++++
 drivers/iio/accel/st_accel_spi.c  |  5 ++++
 3 files changed, 59 insertions(+)

diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h
index 2ed0f60418c0..2f931e4837e5 100644
--- a/drivers/iio/accel/st_accel.h
+++ b/drivers/iio/accel/st_accel.h
@@ -33,6 +33,7 @@ enum st_accel_type {
 	LIS331DL,
 	LIS3LV02DL,
 	LIS2DW12,
+	LIS3DHH,
 	ST_ACCEL_MAX,
 };
 
@@ -54,6 +55,7 @@ enum st_accel_type {
 #define LIS3L02DQ_ACCEL_DEV_NAME	"lis3l02dq"
 #define LNG2DM_ACCEL_DEV_NAME		"lng2dm"
 #define LIS2DW12_ACCEL_DEV_NAME		"lis2dw12"
+#define LIS3DHH_ACCEL_DEV_NAME		"lis3dhh"
 
 /**
 * struct st_sensors_platform_data - default accel platform data
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index c88db25a1aff..460aa58e0159 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -777,6 +777,58 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 		.multi_read_bit = false,
 		.bootime = 2,
 	},
+	{
+		.wai = 0x11,
+		.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
+		.sensors_supported = {
+			[0] = LIS3DHH_ACCEL_DEV_NAME,
+		},
+		.ch = (struct iio_chan_spec *)st_accel_16bit_channels,
+		.odr = {
+			/* just ODR = 1100Hz available */
+			.odr_avl = {
+				{ .hz = 1100, .value = 0x00, },
+			},
+		},
+		.pw = {
+			.addr = 0x20,
+			.mask = 0x80,
+			.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
+			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
+		},
+		.fs = {
+			.fs_avl = {
+				[0] = {
+					.num = ST_ACCEL_FS_AVL_2G,
+					.gain = IIO_G_TO_M_S_2(76),
+				},
+			},
+		},
+		.bdu = {
+			.addr = 0x20,
+			.mask = 0x01,
+		},
+		.drdy_irq = {
+			.int1 = {
+				.addr = 0x21,
+				.mask = 0x80,
+				.addr_od = 0x23,
+				.mask_od = 0x04,
+			},
+			.int2 = {
+				.addr = 0x22,
+				.mask = 0x80,
+				.addr_od = 0x23,
+				.mask_od = 0x08,
+			},
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x07,
+			},
+		},
+		.multi_read_bit = false,
+		.bootime = 2,
+	},
 };
 
 static int st_accel_read_raw(struct iio_dev *indio_dev,
diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
index 7692da49e59f..dcc9bd243a52 100644
--- a/drivers/iio/accel/st_accel_spi.c
+++ b/drivers/iio/accel/st_accel_spi.c
@@ -86,6 +86,10 @@ static const struct of_device_id st_accel_of_match[] = {
 		.compatible = "st,lis2dw12",
 		.data = LIS2DW12_ACCEL_DEV_NAME,
 	},
+	{
+		.compatible = "st,lis3dhh",
+		.data = LIS3DHH_ACCEL_DEV_NAME,
+	},
 	{}
 };
 MODULE_DEVICE_TABLE(of, st_accel_of_match);
@@ -138,6 +142,7 @@ static const struct spi_device_id st_accel_id_table[] = {
 	{ LIS331DL_ACCEL_DEV_NAME },
 	{ LIS3LV02DL_ACCEL_DEV_NAME },
 	{ LIS2DW12_ACCEL_DEV_NAME },
+	{ LIS3DHH_ACCEL_DEV_NAME },
 	{},
 };
 MODULE_DEVICE_TABLE(spi, st_accel_id_table);
-- 
2.14.1

[PATCH 4/4] dt-bindings: iio: accel: add LIS3DHH device bindings

[Lorenzo Bianconi]

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi-qxv4g6HH51o@public.gmane.org>
---
 Documentation/devicetree/bindings/iio/st-sensors.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt
index 9cfc82d21792..6f626f73417e 100644
--- a/Documentation/devicetree/bindings/iio/st-sensors.txt
+++ b/Documentation/devicetree/bindings/iio/st-sensors.txt
@@ -47,6 +47,7 @@ Accelerometers:
 - st,lng2dm-accel
 - st,lis3l02dq
 - st,lis2dw12
+- st,lis3dhh
 
 Gyroscopes:
 - st,l3g4200d-gyro
-- 
2.14.1

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[PATCH 4/4] dt-bindings: iio: accel: add LIS3DHH device bindings

[Lorenzo Bianconi]

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
---
 Documentation/devicetree/bindings/iio/st-sensors.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt
index 9cfc82d21792..6f626f73417e 100644
--- a/Documentation/devicetree/bindings/iio/st-sensors.txt
+++ b/Documentation/devicetree/bindings/iio/st-sensors.txt
@@ -47,6 +47,7 @@ Accelerometers:
 - st,lng2dm-accel
 - st,lis3l02dq
 - st,lis2dw12
+- st,lis3dhh
 
 Gyroscopes:
 - st,l3g4200d-gyro
-- 
2.14.1

Re: [PATCH 4/4] dt-bindings: iio: accel: add LIS3DHH device bindings

[Rob Herring]

On Sun, Sep 17, 2017 at 06:17:12PM +0200, Lorenzo Bianconi wrote:
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi-qxv4g6HH51o@public.gmane.org>
> ---
>  Documentation/devicetree/bindings/iio/st-sensors.txt | 1 +
>  1 file changed, 1 insertion(+)

Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>

Re: [PATCH 4/4] dt-bindings: iio: accel: add LIS3DHH device bindings

[Rob Herring]

On Sun, Sep 17, 2017 at 06:17:12PM +0200, Lorenzo Bianconi wrote:
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
> ---
>  Documentation/devicetree/bindings/iio/st-sensors.txt | 1 +
>  1 file changed, 1 insertion(+)

Acked-by: Rob Herring <robh@kernel.org>

Re: [PATCH 1/4] iio: st_sensors: split open-drain parameters for irq1 and irq2

[Jonathan Cameron]

On Sun, 17 Sep 2017 18:17:09 +0200
Lorenzo Bianconi <lorenzo.bianconi83-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

> Define st_sensor_int_drdy structure in st_sensor_data_ready_irq in order
> to contain irq line parameters of the device.
> Moreover separate data-ready open-drain configuration parameters for INT1
> and INT2 pins in st_sensor_data_ready_irq data structure.
> That change will be used to properly support LIS3DHH accel sensor.
> 
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi-qxv4g6HH51o@public.gmane.org>

Applied to the togreg branch of iio.git and pushed out as testing
for the autobuilders to play with it.

Thanks,

Jonathan

> ---
>  drivers/iio/accel/st_accel_core.c               | 18 ++++++++++------
>  drivers/iio/common/st_sensors/st_sensors_core.c | 21 ++++++++++++++-----
>  drivers/iio/pressure/st_pressure_core.c         | 14 +++++++------
>  include/linux/iio/common/st_sensors.h           | 28 ++++++++++++++-----------
>  4 files changed, 52 insertions(+), 29 deletions(-)
> 
> diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
> index 731ec3a4c82b..c88db25a1aff 100644
> --- a/drivers/iio/accel/st_accel_core.c
> +++ b/drivers/iio/accel/st_accel_core.c
> @@ -236,15 +236,17 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
>  			.int1 = {
>  				.addr = 0x22,
>  				.mask = 0x02,
> +				.addr_od = 0x22,
> +				.mask_od = 0x40,
>  			},
>  			.int2 = {
>  				.addr = 0x22,
>  				.mask = 0x10,
> +				.addr_od = 0x22,
> +				.mask_od = 0x40,
>  			},
>  			.addr_ihl = 0x22,
>  			.mask_ihl = 0x80,
> -			.addr_od = 0x22,
> -			.mask_od = 0x40,
>  			.stat_drdy = {
>  				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
>  				.mask = 0x07,
> @@ -468,15 +470,17 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
>  			.int1 = {
>  				.addr = 0x22,
>  				.mask = 0x04,
> +				.addr_od = 0x22,
> +				.mask_od = 0x40,
>  			},
>  			.int2 = {
>  				.addr = 0x22,
>  				.mask = 0x20,
> +				.addr_od = 0x22,
> +				.mask_od = 0x40,
>  			},
>  			.addr_ihl = 0x22,
>  			.mask_ihl = 0x80,
> -			.addr_od = 0x22,
> -			.mask_od = 0x40,
>  			.stat_drdy = {
>  				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
>  				.mask = 0x07,
> @@ -750,15 +754,17 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
>  			.int1 = {
>  				.addr = 0x23,
>  				.mask = 0x01,
> +				.addr_od = 0x22,
> +				.mask_od = 0x20,
>  			},
>  			.int2 = {
>  				.addr = 0x24,
>  				.mask = 0x01,
> +				.addr_od = 0x22,
> +				.mask_od = 0x20,
>  			},
>  			.addr_ihl = 0x22,
>  			.mask_ihl = 0x08,
> -			.addr_od = 0x22,
> -			.mask_od = 0x20,
>  			.stat_drdy = {
>  				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
>  				.mask = 0x01,
> diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
> index 6657160b5a73..40dfdfc0906b 100644
> --- a/drivers/iio/common/st_sensors/st_sensors_core.c
> +++ b/drivers/iio/common/st_sensors/st_sensors_core.c
> @@ -319,7 +319,8 @@ static int st_sensors_set_drdy_int_pin(struct iio_dev *indio_dev,
>  	}
>  
>  	if (pdata->open_drain) {
> -		if (!sdata->sensor_settings->drdy_irq.addr_od)
> +		if (!sdata->sensor_settings->drdy_irq.int1.addr_od &&
> +		    !sdata->sensor_settings->drdy_irq.int2.addr_od)
>  			dev_err(&indio_dev->dev,
>  				"open drain requested but unsupported.\n");
>  		else
> @@ -446,11 +447,21 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
>  	}
>  
>  	if (sdata->int_pin_open_drain) {
> +		u8 addr, mask;
> +
> +		if (sdata->drdy_int_pin == 1) {
> +			addr = sdata->sensor_settings->drdy_irq.int1.addr_od;
> +			mask = sdata->sensor_settings->drdy_irq.int1.mask_od;
> +		} else {
> +			addr = sdata->sensor_settings->drdy_irq.int2.addr_od;
> +			mask = sdata->sensor_settings->drdy_irq.int2.mask_od;
> +		}
> +
>  		dev_info(&indio_dev->dev,
> -			 "set interrupt line to open drain mode\n");
> -		err = st_sensors_write_data_with_mask(indio_dev,
> -				sdata->sensor_settings->drdy_irq.addr_od,
> -				sdata->sensor_settings->drdy_irq.mask_od, 1);
> +			 "set interrupt line to open drain mode on pin %d\n",
> +			 sdata->drdy_int_pin);
> +		err = st_sensors_write_data_with_mask(indio_dev, addr,
> +						      mask, 1);
>  		if (err < 0)
>  			return err;
>  	}
> diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
> index 15ad6054d9f6..349e5c713c03 100644
> --- a/drivers/iio/pressure/st_pressure_core.c
> +++ b/drivers/iio/pressure/st_pressure_core.c
> @@ -283,15 +283,17 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
>  			.int1 = {
>  				.addr = 0x22,
>  				.mask = 0x04,
> +				.addr_od = 0x22,
> +				.mask_od = 0x40,
>  			},
>  			.int2 = {
>  				.addr = 0x22,
>  				.mask = 0x20,
> +				.addr_od = 0x22,
> +				.mask_od = 0x40,
>  			},
>  			.addr_ihl = 0x22,
>  			.mask_ihl = 0x80,
> -			.addr_od = 0x22,
> -			.mask_od = 0x40,
>  			.stat_drdy = {
>  				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
>  				.mask = 0x03,
> @@ -404,11 +406,11 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
>  			.int1 = {
>  				.addr = 0x23,
>  				.mask = 0x01,
> +				.addr_od = 0x22,
> +				.mask_od = 0x40,
>  			},
>  			.addr_ihl = 0x22,
>  			.mask_ihl = 0x80,
> -			.addr_od = 0x22,
> -			.mask_od = 0x40,
>  			.stat_drdy = {
>  				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
>  				.mask = 0x03,
> @@ -473,11 +475,11 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
>  			.int1 = {
>  				.addr = 0x12,
>  				.mask = 0x04,
> +				.addr_od = 0x12,
> +				.mask_od = 0x40,
>  			},
>  			.addr_ihl = 0x12,
>  			.mask_ihl = 0x80,
> -			.addr_od = 0x12,
> -			.mask_od = 0x40,
>  			.stat_drdy = {
>  				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
>  				.mask = 0x03,
> diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
> index e6c646d5d6d4..f9bd6e8ab138 100644
> --- a/include/linux/iio/common/st_sensors.h
> +++ b/include/linux/iio/common/st_sensors.h
> @@ -130,32 +130,36 @@ struct st_sensor_das {
>  	u8 mask;
>  };
>  
> +/**
> + * struct st_sensor_int_drdy - ST sensor device drdy line parameters
> + * @addr: address of INT drdy register.
> + * @mask: mask to enable drdy line.
> + * @addr_od: address to enable/disable Open Drain on the INT line.
> + * @mask_od: mask to enable/disable Open Drain on the INT line.
> + */
> +struct st_sensor_int_drdy {
> +	u8 addr;
> +	u8 mask;
> +	u8 addr_od;
> +	u8 mask_od;
> +};
> +
>  /**
>   * struct st_sensor_data_ready_irq - ST sensor device data-ready interrupt
>   * struct int1 - data-ready configuration register for INT1 pin.
>   * struct int2 - data-ready configuration register for INT2 pin.
>   * @addr_ihl: address to enable/disable active low on the INT lines.
>   * @mask_ihl: mask to enable/disable active low on the INT lines.
> - * @addr_od: address to enable/disable Open Drain on the INT lines.
> - * @mask_od: mask to enable/disable Open Drain on the INT lines.
>   * struct stat_drdy - status register of DRDY (data ready) interrupt.
>   * struct ig1 - represents the Interrupt Generator 1 of sensors.
>   * @en_addr: address of the enable ig1 register.
>   * @en_mask: mask to write the on/off value for enable.
>   */
>  struct st_sensor_data_ready_irq {
> -	struct {
> -		u8 addr;
> -		u8 mask;
> -	} int1;
> -	struct {
> -		u8 addr;
> -		u8 mask;
> -	} int2;
> +	struct st_sensor_int_drdy int1;
> +	struct st_sensor_int_drdy int2;
>  	u8 addr_ihl;
>  	u8 mask_ihl;
> -	u8 addr_od;
> -	u8 mask_od;
>  	struct {
>  		u8 addr;
>  		u8 mask;

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Re: [PATCH 1/4] iio: st_sensors: split open-drain parameters for irq1 and irq2

[Jonathan Cameron]

On Sun, 17 Sep 2017 18:17:09 +0200
Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> wrote:

> Define st_sensor_int_drdy structure in st_sensor_data_ready_irq in order
> to contain irq line parameters of the device.
> Moreover separate data-ready open-drain configuration parameters for INT1
> and INT2 pins in st_sensor_data_ready_irq data structure.
> That change will be used to properly support LIS3DHH accel sensor.
> 
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>

Applied to the togreg branch of iio.git and pushed out as testing
for the autobuilders to play with it.

Thanks,

Jonathan

> ---
>  drivers/iio/accel/st_accel_core.c               | 18 ++++++++++------
>  drivers/iio/common/st_sensors/st_sensors_core.c | 21 ++++++++++++++-----
>  drivers/iio/pressure/st_pressure_core.c         | 14 +++++++------
>  include/linux/iio/common/st_sensors.h           | 28 ++++++++++++++-----------
>  4 files changed, 52 insertions(+), 29 deletions(-)
> 
> diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
> index 731ec3a4c82b..c88db25a1aff 100644
> --- a/drivers/iio/accel/st_accel_core.c
> +++ b/drivers/iio/accel/st_accel_core.c
> @@ -236,15 +236,17 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
>  			.int1 = {
>  				.addr = 0x22,
>  				.mask = 0x02,
> +				.addr_od = 0x22,
> +				.mask_od = 0x40,
>  			},
>  			.int2 = {
>  				.addr = 0x22,
>  				.mask = 0x10,
> +				.addr_od = 0x22,
> +				.mask_od = 0x40,
>  			},
>  			.addr_ihl = 0x22,
>  			.mask_ihl = 0x80,
> -			.addr_od = 0x22,
> -			.mask_od = 0x40,
>  			.stat_drdy = {
>  				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
>  				.mask = 0x07,
> @@ -468,15 +470,17 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
>  			.int1 = {
>  				.addr = 0x22,
>  				.mask = 0x04,
> +				.addr_od = 0x22,
> +				.mask_od = 0x40,
>  			},
>  			.int2 = {
>  				.addr = 0x22,
>  				.mask = 0x20,
> +				.addr_od = 0x22,
> +				.mask_od = 0x40,
>  			},
>  			.addr_ihl = 0x22,
>  			.mask_ihl = 0x80,
> -			.addr_od = 0x22,
> -			.mask_od = 0x40,
>  			.stat_drdy = {
>  				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
>  				.mask = 0x07,
> @@ -750,15 +754,17 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
>  			.int1 = {
>  				.addr = 0x23,
>  				.mask = 0x01,
> +				.addr_od = 0x22,
> +				.mask_od = 0x20,
>  			},
>  			.int2 = {
>  				.addr = 0x24,
>  				.mask = 0x01,
> +				.addr_od = 0x22,
> +				.mask_od = 0x20,
>  			},
>  			.addr_ihl = 0x22,
>  			.mask_ihl = 0x08,
> -			.addr_od = 0x22,
> -			.mask_od = 0x20,
>  			.stat_drdy = {
>  				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
>  				.mask = 0x01,
> diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
> index 6657160b5a73..40dfdfc0906b 100644
> --- a/drivers/iio/common/st_sensors/st_sensors_core.c
> +++ b/drivers/iio/common/st_sensors/st_sensors_core.c
> @@ -319,7 +319,8 @@ static int st_sensors_set_drdy_int_pin(struct iio_dev *indio_dev,
>  	}
>  
>  	if (pdata->open_drain) {
> -		if (!sdata->sensor_settings->drdy_irq.addr_od)
> +		if (!sdata->sensor_settings->drdy_irq.int1.addr_od &&
> +		    !sdata->sensor_settings->drdy_irq.int2.addr_od)
>  			dev_err(&indio_dev->dev,
>  				"open drain requested but unsupported.\n");
>  		else
> @@ -446,11 +447,21 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
>  	}
>  
>  	if (sdata->int_pin_open_drain) {
> +		u8 addr, mask;
> +
> +		if (sdata->drdy_int_pin == 1) {
> +			addr = sdata->sensor_settings->drdy_irq.int1.addr_od;
> +			mask = sdata->sensor_settings->drdy_irq.int1.mask_od;
> +		} else {
> +			addr = sdata->sensor_settings->drdy_irq.int2.addr_od;
> +			mask = sdata->sensor_settings->drdy_irq.int2.mask_od;
> +		}
> +
>  		dev_info(&indio_dev->dev,
> -			 "set interrupt line to open drain mode\n");
> -		err = st_sensors_write_data_with_mask(indio_dev,
> -				sdata->sensor_settings->drdy_irq.addr_od,
> -				sdata->sensor_settings->drdy_irq.mask_od, 1);
> +			 "set interrupt line to open drain mode on pin %d\n",
> +			 sdata->drdy_int_pin);
> +		err = st_sensors_write_data_with_mask(indio_dev, addr,
> +						      mask, 1);
>  		if (err < 0)
>  			return err;
>  	}
> diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
> index 15ad6054d9f6..349e5c713c03 100644
> --- a/drivers/iio/pressure/st_pressure_core.c
> +++ b/drivers/iio/pressure/st_pressure_core.c
> @@ -283,15 +283,17 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
>  			.int1 = {
>  				.addr = 0x22,
>  				.mask = 0x04,
> +				.addr_od = 0x22,
> +				.mask_od = 0x40,
>  			},
>  			.int2 = {
>  				.addr = 0x22,
>  				.mask = 0x20,
> +				.addr_od = 0x22,
> +				.mask_od = 0x40,
>  			},
>  			.addr_ihl = 0x22,
>  			.mask_ihl = 0x80,
> -			.addr_od = 0x22,
> -			.mask_od = 0x40,
>  			.stat_drdy = {
>  				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
>  				.mask = 0x03,
> @@ -404,11 +406,11 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
>  			.int1 = {
>  				.addr = 0x23,
>  				.mask = 0x01,
> +				.addr_od = 0x22,
> +				.mask_od = 0x40,
>  			},
>  			.addr_ihl = 0x22,
>  			.mask_ihl = 0x80,
> -			.addr_od = 0x22,
> -			.mask_od = 0x40,
>  			.stat_drdy = {
>  				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
>  				.mask = 0x03,
> @@ -473,11 +475,11 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
>  			.int1 = {
>  				.addr = 0x12,
>  				.mask = 0x04,
> +				.addr_od = 0x12,
> +				.mask_od = 0x40,
>  			},
>  			.addr_ihl = 0x12,
>  			.mask_ihl = 0x80,
> -			.addr_od = 0x12,
> -			.mask_od = 0x40,
>  			.stat_drdy = {
>  				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
>  				.mask = 0x03,
> diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
> index e6c646d5d6d4..f9bd6e8ab138 100644
> --- a/include/linux/iio/common/st_sensors.h
> +++ b/include/linux/iio/common/st_sensors.h
> @@ -130,32 +130,36 @@ struct st_sensor_das {
>  	u8 mask;
>  };
>  
> +/**
> + * struct st_sensor_int_drdy - ST sensor device drdy line parameters
> + * @addr: address of INT drdy register.
> + * @mask: mask to enable drdy line.
> + * @addr_od: address to enable/disable Open Drain on the INT line.
> + * @mask_od: mask to enable/disable Open Drain on the INT line.
> + */
> +struct st_sensor_int_drdy {
> +	u8 addr;
> +	u8 mask;
> +	u8 addr_od;
> +	u8 mask_od;
> +};
> +
>  /**
>   * struct st_sensor_data_ready_irq - ST sensor device data-ready interrupt
>   * struct int1 - data-ready configuration register for INT1 pin.
>   * struct int2 - data-ready configuration register for INT2 pin.
>   * @addr_ihl: address to enable/disable active low on the INT lines.
>   * @mask_ihl: mask to enable/disable active low on the INT lines.
> - * @addr_od: address to enable/disable Open Drain on the INT lines.
> - * @mask_od: mask to enable/disable Open Drain on the INT lines.
>   * struct stat_drdy - status register of DRDY (data ready) interrupt.
>   * struct ig1 - represents the Interrupt Generator 1 of sensors.
>   * @en_addr: address of the enable ig1 register.
>   * @en_mask: mask to write the on/off value for enable.
>   */
>  struct st_sensor_data_ready_irq {
> -	struct {
> -		u8 addr;
> -		u8 mask;
> -	} int1;
> -	struct {
> -		u8 addr;
> -		u8 mask;
> -	} int2;
> +	struct st_sensor_int_drdy int1;
> +	struct st_sensor_int_drdy int2;
>  	u8 addr_ihl;
>  	u8 mask_ihl;
> -	u8 addr_od;
> -	u8 mask_od;
>  	struct {
>  		u8 addr;
>  		u8 mask;

Re: [PATCH 2/4] iio: common: st_sensors: check odr address value in st_sensors_set_odr()

[Jonathan Cameron]

On Sun, 17 Sep 2017 18:17:10 +0200
Lorenzo Bianconi <lorenzo.bianconi83-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

> Do not try to configure sample frequency if the sensor do not export
> odr register address in register map. That change will be used to
> properly support LIS3DHH accel sensor.
> 
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi-qxv4g6HH51o@public.gmane.org>
Applied to the togreg branch of iio.git and pushed out as testing
for the autobuilders to play with it.

Thanks,

Jonathan
> ---
>  drivers/iio/common/st_sensors/st_sensors_core.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
> index 40dfdfc0906b..57db19182e95 100644
> --- a/drivers/iio/common/st_sensors/st_sensors_core.c
> +++ b/drivers/iio/common/st_sensors/st_sensors_core.c
> @@ -93,6 +93,9 @@ int st_sensors_set_odr(struct iio_dev *indio_dev, unsigned int odr)
>  	struct st_sensor_odr_avl odr_out = {0, 0};
>  	struct st_sensor_data *sdata = iio_priv(indio_dev);
>  
> +	if (!sdata->sensor_settings->odr.addr)
> +		return 0;
> +
>  	err = st_sensors_match_odr(sdata->sensor_settings, odr, &odr_out);
>  	if (err < 0)
>  		goto st_sensors_match_odr_error;

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Re: [PATCH 2/4] iio: common: st_sensors: check odr address value in st_sensors_set_odr()

[Jonathan Cameron]

On Sun, 17 Sep 2017 18:17:10 +0200
Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> wrote:

> Do not try to configure sample frequency if the sensor do not export
> odr register address in register map. That change will be used to
> properly support LIS3DHH accel sensor.
> 
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Applied to the togreg branch of iio.git and pushed out as testing
for the autobuilders to play with it.

Thanks,

Jonathan
> ---
>  drivers/iio/common/st_sensors/st_sensors_core.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
> index 40dfdfc0906b..57db19182e95 100644
> --- a/drivers/iio/common/st_sensors/st_sensors_core.c
> +++ b/drivers/iio/common/st_sensors/st_sensors_core.c
> @@ -93,6 +93,9 @@ int st_sensors_set_odr(struct iio_dev *indio_dev, unsigned int odr)
>  	struct st_sensor_odr_avl odr_out = {0, 0};
>  	struct st_sensor_data *sdata = iio_priv(indio_dev);
>  
> +	if (!sdata->sensor_settings->odr.addr)
> +		return 0;
> +
>  	err = st_sensors_match_odr(sdata->sensor_settings, odr, &odr_out);
>  	if (err < 0)
>  		goto st_sensors_match_odr_error;

Re: [PATCH 3/4] iio: accel: add support to LIS3DHH

[Jonathan Cameron]

On Sun, 17 Sep 2017 18:17:11 +0200
Lorenzo Bianconi <lorenzo.bianconi83-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

> add support to STMicroelectronics LIS3DHH accel sensor
> 
> http://www.st.com/resource/en/datasheet/lis3dhh.pdf
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi-qxv4g6HH51o@public.gmane.org>
Applied to the togreg branch of iio.git and pushed out as testing
for the autobuilders to play with it.

Thanks,

Jonathan
> ---
>  drivers/iio/accel/st_accel.h      |  2 ++
>  drivers/iio/accel/st_accel_core.c | 52 +++++++++++++++++++++++++++++++++++++++
>  drivers/iio/accel/st_accel_spi.c  |  5 ++++
>  3 files changed, 59 insertions(+)
> 
> diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h
> index 2ed0f60418c0..2f931e4837e5 100644
> --- a/drivers/iio/accel/st_accel.h
> +++ b/drivers/iio/accel/st_accel.h
> @@ -33,6 +33,7 @@ enum st_accel_type {
>  	LIS331DL,
>  	LIS3LV02DL,
>  	LIS2DW12,
> +	LIS3DHH,
>  	ST_ACCEL_MAX,
>  };
>  
> @@ -54,6 +55,7 @@ enum st_accel_type {
>  #define LIS3L02DQ_ACCEL_DEV_NAME	"lis3l02dq"
>  #define LNG2DM_ACCEL_DEV_NAME		"lng2dm"
>  #define LIS2DW12_ACCEL_DEV_NAME		"lis2dw12"
> +#define LIS3DHH_ACCEL_DEV_NAME		"lis3dhh"
>  
>  /**
>  * struct st_sensors_platform_data - default accel platform data
> diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
> index c88db25a1aff..460aa58e0159 100644
> --- a/drivers/iio/accel/st_accel_core.c
> +++ b/drivers/iio/accel/st_accel_core.c
> @@ -777,6 +777,58 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
>  		.multi_read_bit = false,
>  		.bootime = 2,
>  	},
> +	{
> +		.wai = 0x11,
> +		.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
> +		.sensors_supported = {
> +			[0] = LIS3DHH_ACCEL_DEV_NAME,
> +		},
> +		.ch = (struct iio_chan_spec *)st_accel_16bit_channels,
> +		.odr = {
> +			/* just ODR = 1100Hz available */
> +			.odr_avl = {
> +				{ .hz = 1100, .value = 0x00, },
> +			},
> +		},
> +		.pw = {
> +			.addr = 0x20,
> +			.mask = 0x80,
> +			.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
> +			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
> +		},
> +		.fs = {
> +			.fs_avl = {
> +				[0] = {
> +					.num = ST_ACCEL_FS_AVL_2G,
> +					.gain = IIO_G_TO_M_S_2(76),
> +				},
> +			},
> +		},
> +		.bdu = {
> +			.addr = 0x20,
> +			.mask = 0x01,
> +		},
> +		.drdy_irq = {
> +			.int1 = {
> +				.addr = 0x21,
> +				.mask = 0x80,
> +				.addr_od = 0x23,
> +				.mask_od = 0x04,
> +			},
> +			.int2 = {
> +				.addr = 0x22,
> +				.mask = 0x80,
> +				.addr_od = 0x23,
> +				.mask_od = 0x08,
> +			},
> +			.stat_drdy = {
> +				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
> +				.mask = 0x07,
> +			},
> +		},
> +		.multi_read_bit = false,
> +		.bootime = 2,
> +	},
>  };
>  
>  static int st_accel_read_raw(struct iio_dev *indio_dev,
> diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
> index 7692da49e59f..dcc9bd243a52 100644
> --- a/drivers/iio/accel/st_accel_spi.c
> +++ b/drivers/iio/accel/st_accel_spi.c
> @@ -86,6 +86,10 @@ static const struct of_device_id st_accel_of_match[] = {
>  		.compatible = "st,lis2dw12",
>  		.data = LIS2DW12_ACCEL_DEV_NAME,
>  	},
> +	{
> +		.compatible = "st,lis3dhh",
> +		.data = LIS3DHH_ACCEL_DEV_NAME,
> +	},
>  	{}
>  };
>  MODULE_DEVICE_TABLE(of, st_accel_of_match);
> @@ -138,6 +142,7 @@ static const struct spi_device_id st_accel_id_table[] = {
>  	{ LIS331DL_ACCEL_DEV_NAME },
>  	{ LIS3LV02DL_ACCEL_DEV_NAME },
>  	{ LIS2DW12_ACCEL_DEV_NAME },
> +	{ LIS3DHH_ACCEL_DEV_NAME },
>  	{},
>  };
>  MODULE_DEVICE_TABLE(spi, st_accel_id_table);

Re: [PATCH 3/4] iio: accel: add support to LIS3DHH

[Jonathan Cameron]

On Sun, 17 Sep 2017 18:17:11 +0200
Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> wrote:

> add support to STMicroelectronics LIS3DHH accel sensor
> 
> http://www.st.com/resource/en/datasheet/lis3dhh.pdf
> Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
Applied to the togreg branch of iio.git and pushed out as testing
for the autobuilders to play with it.

Thanks,

Jonathan
> ---
>  drivers/iio/accel/st_accel.h      |  2 ++
>  drivers/iio/accel/st_accel_core.c | 52 +++++++++++++++++++++++++++++++++++++++
>  drivers/iio/accel/st_accel_spi.c  |  5 ++++
>  3 files changed, 59 insertions(+)
> 
> diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h
> index 2ed0f60418c0..2f931e4837e5 100644
> --- a/drivers/iio/accel/st_accel.h
> +++ b/drivers/iio/accel/st_accel.h
> @@ -33,6 +33,7 @@ enum st_accel_type {
>  	LIS331DL,
>  	LIS3LV02DL,
>  	LIS2DW12,
> +	LIS3DHH,
>  	ST_ACCEL_MAX,
>  };
>  
> @@ -54,6 +55,7 @@ enum st_accel_type {
>  #define LIS3L02DQ_ACCEL_DEV_NAME	"lis3l02dq"
>  #define LNG2DM_ACCEL_DEV_NAME		"lng2dm"
>  #define LIS2DW12_ACCEL_DEV_NAME		"lis2dw12"
> +#define LIS3DHH_ACCEL_DEV_NAME		"lis3dhh"
>  
>  /**
>  * struct st_sensors_platform_data - default accel platform data
> diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
> index c88db25a1aff..460aa58e0159 100644
> --- a/drivers/iio/accel/st_accel_core.c
> +++ b/drivers/iio/accel/st_accel_core.c
> @@ -777,6 +777,58 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
>  		.multi_read_bit = false,
>  		.bootime = 2,
>  	},
> +	{
> +		.wai = 0x11,
> +		.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
> +		.sensors_supported = {
> +			[0] = LIS3DHH_ACCEL_DEV_NAME,
> +		},
> +		.ch = (struct iio_chan_spec *)st_accel_16bit_channels,
> +		.odr = {
> +			/* just ODR = 1100Hz available */
> +			.odr_avl = {
> +				{ .hz = 1100, .value = 0x00, },
> +			},
> +		},
> +		.pw = {
> +			.addr = 0x20,
> +			.mask = 0x80,
> +			.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
> +			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
> +		},
> +		.fs = {
> +			.fs_avl = {
> +				[0] = {
> +					.num = ST_ACCEL_FS_AVL_2G,
> +					.gain = IIO_G_TO_M_S_2(76),
> +				},
> +			},
> +		},
> +		.bdu = {
> +			.addr = 0x20,
> +			.mask = 0x01,
> +		},
> +		.drdy_irq = {
> +			.int1 = {
> +				.addr = 0x21,
> +				.mask = 0x80,
> +				.addr_od = 0x23,
> +				.mask_od = 0x04,
> +			},
> +			.int2 = {
> +				.addr = 0x22,
> +				.mask = 0x80,
> +				.addr_od = 0x23,
> +				.mask_od = 0x08,
> +			},
> +			.stat_drdy = {
> +				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
> +				.mask = 0x07,
> +			},
> +		},
> +		.multi_read_bit = false,
> +		.bootime = 2,
> +	},
>  };
>  
>  static int st_accel_read_raw(struct iio_dev *indio_dev,
> diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
> index 7692da49e59f..dcc9bd243a52 100644
> --- a/drivers/iio/accel/st_accel_spi.c
> +++ b/drivers/iio/accel/st_accel_spi.c
> @@ -86,6 +86,10 @@ static const struct of_device_id st_accel_of_match[] = {
>  		.compatible = "st,lis2dw12",
>  		.data = LIS2DW12_ACCEL_DEV_NAME,
>  	},
> +	{
> +		.compatible = "st,lis3dhh",
> +		.data = LIS3DHH_ACCEL_DEV_NAME,
> +	},
>  	{}
>  };
>  MODULE_DEVICE_TABLE(of, st_accel_of_match);
> @@ -138,6 +142,7 @@ static const struct spi_device_id st_accel_id_table[] = {
>  	{ LIS331DL_ACCEL_DEV_NAME },
>  	{ LIS3LV02DL_ACCEL_DEV_NAME },
>  	{ LIS2DW12_ACCEL_DEV_NAME },
> +	{ LIS3DHH_ACCEL_DEV_NAME },
>  	{},
>  };
>  MODULE_DEVICE_TABLE(spi, st_accel_id_table);

Re: [PATCH 4/4] dt-bindings: iio: accel: add LIS3DHH device bindings

[Jonathan Cameron]

On Wed, 20 Sep 2017 15:53:07 -0500
Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org> wrote:

> On Sun, Sep 17, 2017 at 06:17:12PM +0200, Lorenzo Bianconi wrote:
> > Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi-qxv4g6HH51o@public.gmane.org>
> > ---
> >  Documentation/devicetree/bindings/iio/st-sensors.txt | 1 +
> >  1 file changed, 1 insertion(+)  
> 
> Acked-by: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Applied to the togreg branch of iio.git and pushed out as testing.

Thanks,

Jonathan

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Re: [PATCH 4/4] dt-bindings: iio: accel: add LIS3DHH device bindings

[Jonathan Cameron]

On Wed, 20 Sep 2017 15:53:07 -0500
Rob Herring <robh@kernel.org> wrote:

> On Sun, Sep 17, 2017 at 06:17:12PM +0200, Lorenzo Bianconi wrote:
> > Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com>
> > ---
> >  Documentation/devicetree/bindings/iio/st-sensors.txt | 1 +
> >  1 file changed, 1 insertion(+)  
> 
> Acked-by: Rob Herring <robh@kernel.org>
Applied to the togreg branch of iio.git and pushed out as testing.

Thanks,

Jonathan

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> To unsubscribe from this list: send the line "unsubscribe linux-iio" in
> the body of a message to majordomo@vger.kernel.org
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