From: Martin Kepplinger <martin.kepplinger@puri.sm>
To: lorenzo.bianconi83@gmail.com, jic23@kernel.org, knaack.h@gmx.de,
lars@metafoo.de, pmeerw@pmeerw.net
Cc: robh+dt@kernel.org, mark.rutland@arm.com,
linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Lorenzo Bianconi <lorenzo@kernel.org>,
Martin Kepplinger <martin.kepplinger@puri.sm>
Subject: [PATCH v5 1/4] iio: imu: st_lsm6dsx: introduce update_fifo function pointer
Date: Wed, 21 Aug 2019 15:25:17 +0200 [thread overview]
Message-ID: <20190821132520.28225-2-martin.kepplinger@puri.sm> (raw)
In-Reply-To: <20190821132520.28225-1-martin.kepplinger@puri.sm>
From: Lorenzo Bianconi <lorenzo@kernel.org>
Introduce update_fifo routine pointer in st_lsm6dsx_fifo_ops data
structure since we will need a different update FIFO configuration
callback adding support for lsm6ds0/lsm9ds1 imu device
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Tested-by: Martin Kepplinger <martin.kepplinger@puri.sm>
---
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h | 4 ++++
.../iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c | 19 +++++++++++++++----
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 6 ++++++
3 files changed, 25 insertions(+), 4 deletions(-)
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
index 4e8e67ae1632..055e52dec36a 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
@@ -75,6 +75,7 @@ struct st_lsm6dsx_reg {
u8 mask;
};
+struct st_lsm6dsx_sensor;
struct st_lsm6dsx_hw;
struct st_lsm6dsx_odr {
@@ -101,12 +102,14 @@ struct st_lsm6dsx_fs_table_entry {
/**
* struct st_lsm6dsx_fifo_ops - ST IMU FIFO settings
+ * @update_fifo: Update FIFO configuration callback.
* @read_fifo: Read FIFO callback.
* @fifo_th: FIFO threshold register info (addr + mask).
* @fifo_diff: FIFO diff status register info (addr + mask).
* @th_wl: FIFO threshold word length.
*/
struct st_lsm6dsx_fifo_ops {
+ int (*update_fifo)(struct st_lsm6dsx_sensor *sensor, bool enable);
int (*read_fifo)(struct st_lsm6dsx_hw *hw);
struct {
u8 addr;
@@ -327,6 +330,7 @@ int st_lsm6dsx_fifo_setup(struct st_lsm6dsx_hw *hw);
int st_lsm6dsx_set_watermark(struct iio_dev *iio_dev, unsigned int val);
int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor,
u16 watermark);
+int st_lsm6dsx_update_fifo(struct st_lsm6dsx_sensor *sensor, bool enable);
int st_lsm6dsx_flush_fifo(struct st_lsm6dsx_hw *hw);
int st_lsm6dsx_set_fifo_mode(struct st_lsm6dsx_hw *hw,
enum st_lsm6dsx_fifo_mode fifo_mode);
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
index 2c03a5b80f80..b0f3da1976e4 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
@@ -602,9 +602,8 @@ int st_lsm6dsx_flush_fifo(struct st_lsm6dsx_hw *hw)
return err;
}
-static int st_lsm6dsx_update_fifo(struct iio_dev *iio_dev, bool enable)
+int st_lsm6dsx_update_fifo(struct st_lsm6dsx_sensor *sensor, bool enable)
{
- struct st_lsm6dsx_sensor *sensor = iio_priv(iio_dev);
struct st_lsm6dsx_hw *hw = sensor->hw;
int err;
@@ -676,12 +675,24 @@ static irqreturn_t st_lsm6dsx_handler_thread(int irq, void *private)
static int st_lsm6dsx_buffer_preenable(struct iio_dev *iio_dev)
{
- return st_lsm6dsx_update_fifo(iio_dev, true);
+ struct st_lsm6dsx_sensor *sensor = iio_priv(iio_dev);
+ struct st_lsm6dsx_hw *hw = sensor->hw;
+
+ if (!hw->settings->fifo_ops.update_fifo)
+ return -ENOTSUPP;
+
+ return hw->settings->fifo_ops.update_fifo(sensor, true);
}
static int st_lsm6dsx_buffer_postdisable(struct iio_dev *iio_dev)
{
- return st_lsm6dsx_update_fifo(iio_dev, false);
+ struct st_lsm6dsx_sensor *sensor = iio_priv(iio_dev);
+ struct st_lsm6dsx_hw *hw = sensor->hw;
+
+ if (!hw->settings->fifo_ops.update_fifo)
+ return -ENOTSUPP;
+
+ return hw->settings->fifo_ops.update_fifo(sensor, false);
}
static const struct iio_buffer_setup_ops st_lsm6dsx_buffer_ops = {
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index 85824d6739ee..0aa93b45d772 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -154,6 +154,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
},
.fifo_ops = {
+ .update_fifo = st_lsm6dsx_update_fifo,
.read_fifo = st_lsm6dsx_read_fifo,
.fifo_th = {
.addr = 0x06,
@@ -262,6 +263,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
},
.fifo_ops = {
+ .update_fifo = st_lsm6dsx_update_fifo,
.read_fifo = st_lsm6dsx_read_fifo,
.fifo_th = {
.addr = 0x06,
@@ -379,6 +381,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
},
.fifo_ops = {
+ .update_fifo = st_lsm6dsx_update_fifo,
.read_fifo = st_lsm6dsx_read_fifo,
.fifo_th = {
.addr = 0x06,
@@ -490,6 +493,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
},
.fifo_ops = {
+ .update_fifo = st_lsm6dsx_update_fifo,
.read_fifo = st_lsm6dsx_read_tagged_fifo,
.fifo_th = {
.addr = 0x07,
@@ -616,6 +620,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
},
.fifo_ops = {
+ .update_fifo = st_lsm6dsx_update_fifo,
.read_fifo = st_lsm6dsx_read_tagged_fifo,
.fifo_th = {
.addr = 0x07,
@@ -719,6 +724,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
},
},
.fifo_ops = {
+ .update_fifo = st_lsm6dsx_update_fifo,
.read_fifo = st_lsm6dsx_read_tagged_fifo,
.fifo_th = {
.addr = 0x07,
--
2.20.1
next prev parent reply other threads:[~2019-08-21 13:26 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-21 13:25 [PATCH v5 0/4] iio: imu: st_lsm6dsx: Add support for LSM9DS1 Martin Kepplinger
2019-08-21 13:25 ` Martin Kepplinger [this message]
2019-08-26 8:10 ` [PATCH v5 1/4] iio: imu: st_lsm6dsx: introduce update_fifo function pointer Jonathan Cameron
2019-08-21 13:25 ` [PATCH v5 2/4] iio: imu: st_lsm6sdx: move register definitions to sensor_settings struct Martin Kepplinger
2019-08-26 8:11 ` Jonathan Cameron
2019-08-27 6:54 ` Martin Kepplinger
2019-08-27 19:59 ` Jonathan Cameron
2019-08-21 13:25 ` [PATCH v5 3/4] iio: imu: st_lsm6dsx: add support for accel/gyro unit of lsm9sd1 Martin Kepplinger
2019-08-26 8:13 ` Jonathan Cameron
2019-08-21 13:25 ` [PATCH v5 4/4] dt-bindings: iio: imu: st_lsm6dsx: add lsm9ds1 device bindings Martin Kepplinger
2019-08-26 8:10 ` Jonathan Cameron
2019-08-27 17:25 ` Rob Herring
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