From: Lorenzo Bianconi <lorenzo@kernel.org>
To: Jonathan Cameron <jic23@kernel.org>
Cc: lorenzo.bianconi@redhat.com, mario.tesi@st.com,
linux-iio@vger.kernel.org
Subject: Re: [PATCH v2 2/2] iio: imu: st_lsm6dsx: express odr in mHZ
Date: Sun, 10 Nov 2019 11:27:49 +0200 [thread overview]
Message-ID: <20191110092749.GA28227@localhost.localdomain> (raw)
In-Reply-To: <20191109131940.54bbe6b4@archlinux>
[-- Attachment #1: Type: text/plain, Size: 21189 bytes --]
> On Sun, 3 Nov 2019 20:47:18 +0100
> Lorenzo Bianconi <lorenzo@kernel.org> wrote:
>
> > Express available frequencies in mHZ in order to support even
> > rational ODRs. This patch is need to fix an Android CTS failure
> >
> > Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
> I've pulled the earlier fix across from the fixes-togreg branch as
> I 'think' I'll get a pull request out before the merge window
> whereas fixes will now be after.
>
> One thing inline that I'll fix up.
>
> > ---
> > drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h | 6 +-
> > .../iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c | 9 +-
> > drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c | 197 +++++++++---------
> > drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c | 31 +--
> > 4 files changed, 126 insertions(+), 117 deletions(-)
> >
> > diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
> > index 9ffc8e06f73d..8ea969e1b72b 100644
> > --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
> > +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
> > @@ -106,7 +106,7 @@ struct st_lsm6dsx_sensor;
> > struct st_lsm6dsx_hw;
> >
> > struct st_lsm6dsx_odr {
> > - u16 hz;
> > + u32 hz; /* expressed in mHZ */
> Don't call it hz and express in it in milli hz!
>
> u32 milli_hz; will do nicely. + no
> need for comment then...
right :) Do you want to me to send a v3?
Regards,
Lorenzo
>
> > u8 val;
> > };
> >
> > @@ -330,7 +330,7 @@ struct st_lsm6dsx_sensor {
> > struct st_lsm6dsx_hw *hw;
> >
> > u32 gain;
> > - u16 odr;
> > + u32 odr;
> >
> > u16 watermark;
> > u8 sip;
> > @@ -415,7 +415,7 @@ int st_lsm6dsx_set_fifo_mode(struct st_lsm6dsx_hw *hw,
> > enum st_lsm6dsx_fifo_mode fifo_mode);
> > int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw);
> > int st_lsm6dsx_read_tagged_fifo(struct st_lsm6dsx_hw *hw);
> > -int st_lsm6dsx_check_odr(struct st_lsm6dsx_sensor *sensor, u16 odr, u8 *val);
> > +int st_lsm6dsx_check_odr(struct st_lsm6dsx_sensor *sensor, u32 odr, u8 *val);
> > int st_lsm6dsx_shub_probe(struct st_lsm6dsx_hw *hw, const char *name);
> > int st_lsm6dsx_shub_set_enable(struct st_lsm6dsx_sensor *sensor, bool enable);
> > int st_lsm6dsx_set_page(struct st_lsm6dsx_hw *hw, bool enable);
> > diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
> > index 31cd90d2c60e..d416990ae309 100644
> > --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
> > +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
> > @@ -91,7 +91,7 @@ static int st_lsm6dsx_get_decimator_val(u8 val)
> > }
> >
> > static void st_lsm6dsx_get_max_min_odr(struct st_lsm6dsx_hw *hw,
> > - u16 *max_odr, u16 *min_odr)
> > + u32 *max_odr, u32 *min_odr)
> > {
> > struct st_lsm6dsx_sensor *sensor;
> > int i;
> > @@ -106,16 +106,17 @@ static void st_lsm6dsx_get_max_min_odr(struct st_lsm6dsx_hw *hw,
> > if (!(hw->enable_mask & BIT(sensor->id)))
> > continue;
> >
> > - *max_odr = max_t(u16, *max_odr, sensor->odr);
> > - *min_odr = min_t(u16, *min_odr, sensor->odr);
> > + *max_odr = max_t(u32, *max_odr, sensor->odr);
> > + *min_odr = min_t(u32, *min_odr, sensor->odr);
> > }
> > }
> >
> > static int st_lsm6dsx_update_decimators(struct st_lsm6dsx_hw *hw)
> > {
> > - u16 max_odr, min_odr, sip = 0, ts_sip = 0;
> > const struct st_lsm6dsx_reg *ts_dec_reg;
> > struct st_lsm6dsx_sensor *sensor;
> > + u16 sip = 0, ts_sip = 0;
> > + u32 max_odr, min_odr;
> > int err = 0, i;
> > u8 data;
> >
> > diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
> > index 2f9396745bc8..03e5cd0cfcba 100644
> > --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
> > +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
> > @@ -127,12 +127,12 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
> > .addr = 0x20,
> > .mask = GENMASK(7, 5),
> > },
> > - .odr_avl[0] = { 10, 0x01 },
> > - .odr_avl[1] = { 50, 0x02 },
> > - .odr_avl[2] = { 119, 0x03 },
> > - .odr_avl[3] = { 238, 0x04 },
> > - .odr_avl[4] = { 476, 0x05 },
> > - .odr_avl[5] = { 952, 0x06 },
> > + .odr_avl[0] = { 10000, 0x01 },
> > + .odr_avl[1] = { 50000, 0x02 },
> > + .odr_avl[2] = { 119000, 0x03 },
> > + .odr_avl[3] = { 238000, 0x04 },
> > + .odr_avl[4] = { 476000, 0x05 },
> > + .odr_avl[5] = { 952000, 0x06 },
> > .odr_len = 6,
> > },
> > [ST_LSM6DSX_ID_GYRO] = {
> > @@ -140,12 +140,12 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
> > .addr = 0x10,
> > .mask = GENMASK(7, 5),
> > },
> > - .odr_avl[0] = { 15, 0x01 },
> > - .odr_avl[1] = { 60, 0x02 },
> > - .odr_avl[2] = { 119, 0x03 },
> > - .odr_avl[3] = { 238, 0x04 },
> > - .odr_avl[4] = { 476, 0x05 },
> > - .odr_avl[5] = { 952, 0x06 },
> > + .odr_avl[0] = { 14900, 0x01 },
> > + .odr_avl[1] = { 59500, 0x02 },
> > + .odr_avl[2] = { 119000, 0x03 },
> > + .odr_avl[3] = { 238000, 0x04 },
> > + .odr_avl[4] = { 476000, 0x05 },
> > + .odr_avl[5] = { 952000, 0x06 },
> > .odr_len = 6,
> > },
> > },
> > @@ -229,12 +229,12 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
> > .addr = 0x10,
> > .mask = GENMASK(7, 4),
> > },
> > - .odr_avl[0] = { 13, 0x01 },
> > - .odr_avl[1] = { 26, 0x02 },
> > - .odr_avl[2] = { 52, 0x03 },
> > - .odr_avl[3] = { 104, 0x04 },
> > - .odr_avl[4] = { 208, 0x05 },
> > - .odr_avl[5] = { 416, 0x06 },
> > + .odr_avl[0] = { 12500, 0x01 },
> > + .odr_avl[1] = { 26000, 0x02 },
> > + .odr_avl[2] = { 52000, 0x03 },
> > + .odr_avl[3] = { 104000, 0x04 },
> > + .odr_avl[4] = { 208000, 0x05 },
> > + .odr_avl[5] = { 416000, 0x06 },
> > .odr_len = 6,
> > },
> > [ST_LSM6DSX_ID_GYRO] = {
> > @@ -242,12 +242,12 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
> > .addr = 0x11,
> > .mask = GENMASK(7, 4),
> > },
> > - .odr_avl[0] = { 13, 0x01 },
> > - .odr_avl[1] = { 26, 0x02 },
> > - .odr_avl[2] = { 52, 0x03 },
> > - .odr_avl[3] = { 104, 0x04 },
> > - .odr_avl[4] = { 208, 0x05 },
> > - .odr_avl[5] = { 416, 0x06 },
> > + .odr_avl[0] = { 12500, 0x01 },
> > + .odr_avl[1] = { 26000, 0x02 },
> > + .odr_avl[2] = { 52000, 0x03 },
> > + .odr_avl[3] = { 104000, 0x04 },
> > + .odr_avl[4] = { 208000, 0x05 },
> > + .odr_avl[5] = { 416000, 0x06 },
> > .odr_len = 6,
> > },
> > },
> > @@ -395,12 +395,12 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
> > .addr = 0x10,
> > .mask = GENMASK(7, 4),
> > },
> > - .odr_avl[0] = { 13, 0x01 },
> > - .odr_avl[1] = { 26, 0x02 },
> > - .odr_avl[2] = { 52, 0x03 },
> > - .odr_avl[3] = { 104, 0x04 },
> > - .odr_avl[4] = { 208, 0x05 },
> > - .odr_avl[5] = { 416, 0x06 },
> > + .odr_avl[0] = { 12500, 0x01 },
> > + .odr_avl[1] = { 26000, 0x02 },
> > + .odr_avl[2] = { 52000, 0x03 },
> > + .odr_avl[3] = { 104000, 0x04 },
> > + .odr_avl[4] = { 208000, 0x05 },
> > + .odr_avl[5] = { 416000, 0x06 },
> > .odr_len = 6,
> > },
> > [ST_LSM6DSX_ID_GYRO] = {
> > @@ -408,12 +408,12 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
> > .addr = 0x11,
> > .mask = GENMASK(7, 4),
> > },
> > - .odr_avl[0] = { 13, 0x01 },
> > - .odr_avl[1] = { 26, 0x02 },
> > - .odr_avl[2] = { 52, 0x03 },
> > - .odr_avl[3] = { 104, 0x04 },
> > - .odr_avl[4] = { 208, 0x05 },
> > - .odr_avl[5] = { 416, 0x06 },
> > + .odr_avl[0] = { 12500, 0x01 },
> > + .odr_avl[1] = { 26000, 0x02 },
> > + .odr_avl[2] = { 52000, 0x03 },
> > + .odr_avl[3] = { 104000, 0x04 },
> > + .odr_avl[4] = { 208000, 0x05 },
> > + .odr_avl[5] = { 416000, 0x06 },
> > .odr_len = 6,
> > },
> > },
> > @@ -570,12 +570,12 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
> > .addr = 0x10,
> > .mask = GENMASK(7, 4),
> > },
> > - .odr_avl[0] = { 13, 0x01 },
> > - .odr_avl[1] = { 26, 0x02 },
> > - .odr_avl[2] = { 52, 0x03 },
> > - .odr_avl[3] = { 104, 0x04 },
> > - .odr_avl[4] = { 208, 0x05 },
> > - .odr_avl[5] = { 416, 0x06 },
> > + .odr_avl[0] = { 12500, 0x01 },
> > + .odr_avl[1] = { 26000, 0x02 },
> > + .odr_avl[2] = { 52000, 0x03 },
> > + .odr_avl[3] = { 104000, 0x04 },
> > + .odr_avl[4] = { 208000, 0x05 },
> > + .odr_avl[5] = { 416000, 0x06 },
> > .odr_len = 6,
> > },
> > [ST_LSM6DSX_ID_GYRO] = {
> > @@ -583,12 +583,12 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
> > .addr = 0x11,
> > .mask = GENMASK(7, 4),
> > },
> > - .odr_avl[0] = { 13, 0x01 },
> > - .odr_avl[1] = { 26, 0x02 },
> > - .odr_avl[2] = { 52, 0x03 },
> > - .odr_avl[3] = { 104, 0x04 },
> > - .odr_avl[4] = { 208, 0x05 },
> > - .odr_avl[5] = { 416, 0x06 },
> > + .odr_avl[0] = { 12500, 0x01 },
> > + .odr_avl[1] = { 26000, 0x02 },
> > + .odr_avl[2] = { 52000, 0x03 },
> > + .odr_avl[3] = { 104000, 0x04 },
> > + .odr_avl[4] = { 208000, 0x05 },
> > + .odr_avl[5] = { 416000, 0x06 },
> > .odr_len = 6,
> > },
> > },
> > @@ -747,12 +747,12 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
> > .addr = 0x10,
> > .mask = GENMASK(7, 4),
> > },
> > - .odr_avl[0] = { 13, 0x01 },
> > - .odr_avl[1] = { 26, 0x02 },
> > - .odr_avl[2] = { 52, 0x03 },
> > - .odr_avl[3] = { 104, 0x04 },
> > - .odr_avl[4] = { 208, 0x05 },
> > - .odr_avl[5] = { 416, 0x06 },
> > + .odr_avl[0] = { 12500, 0x01 },
> > + .odr_avl[1] = { 26000, 0x02 },
> > + .odr_avl[2] = { 52000, 0x03 },
> > + .odr_avl[3] = { 104000, 0x04 },
> > + .odr_avl[4] = { 208000, 0x05 },
> > + .odr_avl[5] = { 416000, 0x06 },
> > .odr_len = 6,
> > },
> > [ST_LSM6DSX_ID_GYRO] = {
> > @@ -760,12 +760,12 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
> > .addr = 0x11,
> > .mask = GENMASK(7, 4),
> > },
> > - .odr_avl[0] = { 13, 0x01 },
> > - .odr_avl[1] = { 26, 0x02 },
> > - .odr_avl[2] = { 52, 0x03 },
> > - .odr_avl[3] = { 104, 0x04 },
> > - .odr_avl[4] = { 208, 0x05 },
> > - .odr_avl[5] = { 416, 0x06 },
> > + .odr_avl[0] = { 12500, 0x01 },
> > + .odr_avl[1] = { 26000, 0x02 },
> > + .odr_avl[2] = { 52000, 0x03 },
> > + .odr_avl[3] = { 104000, 0x04 },
> > + .odr_avl[4] = { 208000, 0x05 },
> > + .odr_avl[5] = { 416000, 0x06 },
> > .odr_len = 6,
> > },
> > },
> > @@ -944,12 +944,12 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
> > .addr = 0x10,
> > .mask = GENMASK(7, 4),
> > },
> > - .odr_avl[0] = { 13, 0x01 },
> > - .odr_avl[1] = { 26, 0x02 },
> > - .odr_avl[2] = { 52, 0x03 },
> > - .odr_avl[3] = { 104, 0x04 },
> > - .odr_avl[4] = { 208, 0x05 },
> > - .odr_avl[5] = { 416, 0x06 },
> > + .odr_avl[0] = { 12500, 0x01 },
> > + .odr_avl[1] = { 26000, 0x02 },
> > + .odr_avl[2] = { 52000, 0x03 },
> > + .odr_avl[3] = { 104000, 0x04 },
> > + .odr_avl[4] = { 208000, 0x05 },
> > + .odr_avl[5] = { 416000, 0x06 },
> > .odr_len = 6,
> > },
> > [ST_LSM6DSX_ID_GYRO] = {
> > @@ -957,12 +957,12 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
> > .addr = 0x11,
> > .mask = GENMASK(7, 4),
> > },
> > - .odr_avl[0] = { 13, 0x01 },
> > - .odr_avl[1] = { 26, 0x02 },
> > - .odr_avl[2] = { 52, 0x03 },
> > - .odr_avl[3] = { 104, 0x04 },
> > - .odr_avl[4] = { 208, 0x05 },
> > - .odr_avl[5] = { 416, 0x06 },
> > + .odr_avl[0] = { 12500, 0x01 },
> > + .odr_avl[1] = { 26000, 0x02 },
> > + .odr_avl[2] = { 52000, 0x03 },
> > + .odr_avl[3] = { 104000, 0x04 },
> > + .odr_avl[4] = { 208000, 0x05 },
> > + .odr_avl[5] = { 416000, 0x06 },
> > .odr_len = 6,
> > },
> > },
> > @@ -1121,12 +1121,12 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
> > .addr = 0x10,
> > .mask = GENMASK(7, 4),
> > },
> > - .odr_avl[0] = { 13, 0x01 },
> > - .odr_avl[1] = { 26, 0x02 },
> > - .odr_avl[2] = { 52, 0x03 },
> > - .odr_avl[3] = { 104, 0x04 },
> > - .odr_avl[4] = { 208, 0x05 },
> > - .odr_avl[5] = { 416, 0x06 },
> > + .odr_avl[0] = { 12500, 0x01 },
> > + .odr_avl[1] = { 26000, 0x02 },
> > + .odr_avl[2] = { 52000, 0x03 },
> > + .odr_avl[3] = { 104000, 0x04 },
> > + .odr_avl[4] = { 208000, 0x05 },
> > + .odr_avl[5] = { 416000, 0x06 },
> > .odr_len = 6,
> > },
> > [ST_LSM6DSX_ID_GYRO] = {
> > @@ -1134,12 +1134,12 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
> > .addr = 0x11,
> > .mask = GENMASK(7, 4),
> > },
> > - .odr_avl[0] = { 13, 0x01 },
> > - .odr_avl[1] = { 26, 0x02 },
> > - .odr_avl[2] = { 52, 0x03 },
> > - .odr_avl[3] = { 104, 0x04 },
> > - .odr_avl[4] = { 208, 0x05 },
> > - .odr_avl[5] = { 416, 0x06 },
> > + .odr_avl[0] = { 12500, 0x01 },
> > + .odr_avl[1] = { 26000, 0x02 },
> > + .odr_avl[2] = { 52000, 0x03 },
> > + .odr_avl[3] = { 104000, 0x04 },
> > + .odr_avl[4] = { 208000, 0x05 },
> > + .odr_avl[5] = { 416000, 0x06 },
> > .odr_len = 6,
> > },
> > },
> > @@ -1358,7 +1358,7 @@ static int st_lsm6dsx_set_full_scale(struct st_lsm6dsx_sensor *sensor,
> > return 0;
> > }
> >
> > -int st_lsm6dsx_check_odr(struct st_lsm6dsx_sensor *sensor, u16 odr, u8 *val)
> > +int st_lsm6dsx_check_odr(struct st_lsm6dsx_sensor *sensor, u32 odr, u8 *val)
> > {
> > const struct st_lsm6dsx_odr_table_entry *odr_table;
> > int i;
> > @@ -1380,14 +1380,15 @@ int st_lsm6dsx_check_odr(struct st_lsm6dsx_sensor *sensor, u16 odr, u8 *val)
> > return odr_table->odr_avl[i].hz;
> > }
> >
> > -static u16 st_lsm6dsx_check_odr_dependency(struct st_lsm6dsx_hw *hw, u16 odr,
> > - enum st_lsm6dsx_sensor_id id)
> > +static int
> > +st_lsm6dsx_check_odr_dependency(struct st_lsm6dsx_hw *hw, u32 odr,
> > + enum st_lsm6dsx_sensor_id id)
> > {
> > struct st_lsm6dsx_sensor *ref = iio_priv(hw->iio_devs[id]);
> >
> > if (odr > 0) {
> > if (hw->enable_mask & BIT(id))
> > - return max_t(u16, ref->odr, odr);
> > + return max_t(u32, ref->odr, odr);
> > else
> > return odr;
> > } else {
> > @@ -1395,7 +1396,8 @@ static u16 st_lsm6dsx_check_odr_dependency(struct st_lsm6dsx_hw *hw, u16 odr,
> > }
> > }
> >
> > -static int st_lsm6dsx_set_odr(struct st_lsm6dsx_sensor *sensor, u16 req_odr)
> > +static int
> > +st_lsm6dsx_set_odr(struct st_lsm6dsx_sensor *sensor, u32 req_odr)
> > {
> > struct st_lsm6dsx_sensor *ref_sensor = sensor;
> > struct st_lsm6dsx_hw *hw = sensor->hw;
> > @@ -1409,7 +1411,7 @@ static int st_lsm6dsx_set_odr(struct st_lsm6dsx_sensor *sensor, u16 req_odr)
> > case ST_LSM6DSX_ID_EXT1:
> > case ST_LSM6DSX_ID_EXT2:
> > case ST_LSM6DSX_ID_ACC: {
> > - u16 odr;
> > + u32 odr;
> > int i;
> >
> > /*
> > @@ -1449,7 +1451,7 @@ int st_lsm6dsx_sensor_set_enable(struct st_lsm6dsx_sensor *sensor,
> > bool enable)
> > {
> > struct st_lsm6dsx_hw *hw = sensor->hw;
> > - u16 odr = enable ? sensor->odr : 0;
> > + u32 odr = enable ? sensor->odr : 0;
> > int err;
> >
> > err = st_lsm6dsx_set_odr(sensor, odr);
> > @@ -1475,7 +1477,7 @@ static int st_lsm6dsx_read_oneshot(struct st_lsm6dsx_sensor *sensor,
> > if (err < 0)
> > return err;
> >
> > - delay = 1000000 / sensor->odr;
> > + delay = 1000000000 / sensor->odr;
> > usleep_range(delay, 2 * delay);
> >
> > err = st_lsm6dsx_read_locked(hw, addr, &data, sizeof(data));
> > @@ -1507,8 +1509,9 @@ static int st_lsm6dsx_read_raw(struct iio_dev *iio_dev,
> > iio_device_release_direct_mode(iio_dev);
> > break;
> > case IIO_CHAN_INFO_SAMP_FREQ:
> > - *val = sensor->odr;
> > - ret = IIO_VAL_INT;
> > + *val = sensor->odr / 1000;
> > + *val2 = (sensor->odr % 1000) * 1000;
> > + ret = IIO_VAL_INT_PLUS_MICRO;
> > break;
> > case IIO_CHAN_INFO_SCALE:
> > *val = 0;
> > @@ -1541,6 +1544,7 @@ static int st_lsm6dsx_write_raw(struct iio_dev *iio_dev,
> > case IIO_CHAN_INFO_SAMP_FREQ: {
> > u8 data;
> >
> > + val = val * 1000 + val2 / 1000;
> > val = st_lsm6dsx_check_odr(sensor, val, &data);
> > if (val < 0)
> > err = val;
> > @@ -1730,8 +1734,9 @@ st_lsm6dsx_sysfs_sampling_frequency_avail(struct device *dev,
> >
> > odr_table = &sensor->hw->settings->odr_table[sensor->id];
> > for (i = 0; i < odr_table->odr_len; i++)
> > - len += scnprintf(buf + len, PAGE_SIZE - len, "%d ",
> > - odr_table->odr_avl[i].hz);
> > + len += scnprintf(buf + len, PAGE_SIZE - len, "%d.%03d ",
> > + odr_table->odr_avl[i].hz / 1000,
> > + odr_table->odr_avl[i].hz % 1000);
> > buf[len - 1] = '\n';
> >
> > return len;
> > diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
> > index e029cc05a17f..3a0cb71ce926 100644
> > --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
> > +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c
> > @@ -51,10 +51,10 @@ static const struct st_lsm6dsx_ext_dev_settings st_lsm6dsx_ext_dev_table[] = {
> > .addr = 0x60,
> > .mask = GENMASK(3, 2),
> > },
> > - .odr_avl[0] = { 10, 0x0 },
> > - .odr_avl[1] = { 20, 0x1 },
> > - .odr_avl[2] = { 50, 0x2 },
> > - .odr_avl[3] = { 100, 0x3 },
> > + .odr_avl[0] = { 10000, 0x0 },
> > + .odr_avl[1] = { 20000, 0x1 },
> > + .odr_avl[2] = { 50000, 0x2 },
> > + .odr_avl[3] = { 100000, 0x3 },
> > .odr_len = 4,
> > },
> > .fs_table = {
> > @@ -94,11 +94,11 @@ static const struct st_lsm6dsx_ext_dev_settings st_lsm6dsx_ext_dev_table[] = {
> > static void st_lsm6dsx_shub_wait_complete(struct st_lsm6dsx_hw *hw)
> > {
> > struct st_lsm6dsx_sensor *sensor;
> > - u16 odr;
> > + u32 odr;
> >
> > sensor = iio_priv(hw->iio_devs[ST_LSM6DSX_ID_ACC]);
> > - odr = (hw->enable_mask & BIT(ST_LSM6DSX_ID_ACC)) ? sensor->odr : 13;
> > - msleep((2000U / odr) + 1);
> > + odr = (hw->enable_mask & BIT(ST_LSM6DSX_ID_ACC)) ? sensor->odr : 12500;
> > + msleep((2000000U / odr) + 1);
> > }
> >
> > /**
> > @@ -318,7 +318,7 @@ st_lsm6dsx_shub_write_with_mask(struct st_lsm6dsx_sensor *sensor,
> >
> > static int
> > st_lsm6dsx_shub_get_odr_val(struct st_lsm6dsx_sensor *sensor,
> > - u16 odr, u16 *val)
> > + u32 odr, u16 *val)
> > {
> > const struct st_lsm6dsx_ext_dev_settings *settings;
> > int i;
> > @@ -337,7 +337,7 @@ st_lsm6dsx_shub_get_odr_val(struct st_lsm6dsx_sensor *sensor,
> > }
> >
> > static int
> > -st_lsm6dsx_shub_set_odr(struct st_lsm6dsx_sensor *sensor, u16 odr)
> > +st_lsm6dsx_shub_set_odr(struct st_lsm6dsx_sensor *sensor, u32 odr)
> > {
> > const struct st_lsm6dsx_ext_dev_settings *settings;
> > u16 val;
> > @@ -442,7 +442,7 @@ st_lsm6dsx_shub_read_oneshot(struct st_lsm6dsx_sensor *sensor,
> > if (err < 0)
> > return err;
> >
> > - delay = 1000000 / sensor->odr;
> > + delay = 1000000000 / sensor->odr;
> > usleep_range(delay, 2 * delay);
> >
> > len = min_t(int, sizeof(data), ch->scan_type.realbits >> 3);
> > @@ -482,8 +482,9 @@ st_lsm6dsx_shub_read_raw(struct iio_dev *iio_dev,
> > iio_device_release_direct_mode(iio_dev);
> > break;
> > case IIO_CHAN_INFO_SAMP_FREQ:
> > - *val = sensor->odr;
> > - ret = IIO_VAL_INT;
> > + *val = sensor->odr / 1000;
> > + *val2 = (sensor->odr % 1000) * 1000;
> > + ret = IIO_VAL_INT_PLUS_MICRO;
> > break;
> > case IIO_CHAN_INFO_SCALE:
> > *val = 0;
> > @@ -514,6 +515,7 @@ st_lsm6dsx_shub_write_raw(struct iio_dev *iio_dev,
> > case IIO_CHAN_INFO_SAMP_FREQ: {
> > u16 data;
> >
> > + val = val * 1000 + val2 / 1000;
> > err = st_lsm6dsx_shub_get_odr_val(sensor, val, &data);
> > if (!err)
> > sensor->odr = val;
> > @@ -540,9 +542,10 @@ st_lsm6dsx_shub_sampling_freq_avail(struct device *dev,
> >
> > settings = sensor->ext_info.settings;
> > for (i = 0; i < settings->odr_table.odr_len; i++) {
> > - u16 val = settings->odr_table.odr_avl[i].hz;
> > + u32 val = settings->odr_table.odr_avl[i].hz;
> >
> > - len += scnprintf(buf + len, PAGE_SIZE - len, "%d ", val);
> > + len += scnprintf(buf + len, PAGE_SIZE - len, "%d.%03d ",
> > + val / 1000, val % 1000);
> > }
> > buf[len - 1] = '\n';
> >
>
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next prev parent reply other threads:[~2019-11-10 9:28 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-03 19:47 [PATCH v2 0/2] support rational ODRs in st_lsm6dsx Lorenzo Bianconi
2019-11-03 19:47 ` [PATCH v2 1/2] iio: imu: st_lsm6dsx: explicitly define odr table size Lorenzo Bianconi
2019-11-09 13:11 ` Jonathan Cameron
2019-11-03 19:47 ` [PATCH v2 2/2] iio: imu: st_lsm6dsx: express odr in mHZ Lorenzo Bianconi
2019-11-09 14:46 ` Jonathan Cameron
2019-11-10 9:27 ` Lorenzo Bianconi [this message]
2019-11-10 10:15 ` Jonathan Cameron
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