From: Jonathan Cameron <jic23@jic23.retrosnub.co.uk>
To: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Cc: linux-iio@vger.kernel.org
Subject: Re: [PATCH v4 3/4] iio: imu: inv_mpu6050: clean read raw by factorizing out raw data
Date: Sat, 28 Apr 2018 16:54:51 +0100 [thread overview]
Message-ID: <20180428165451.01c05794@archlinux> (raw)
In-Reply-To: <1524479613-23954-3-git-send-email-jmaneyrol@invensense.com>
On Mon, 23 Apr 2018 12:33:32 +0200
Jean-Baptiste Maneyrol <jmaneyrol@invensense.com> wrote:
> Factorize reading channel data in its own function.
>
> Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Applied
Thanks,
Jonathan
> ---
> drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 116 +++++++++++++++--------------
> 1 file changed, 62 insertions(+), 54 deletions(-)
>
> diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
> index 45f57f7..79b44fd 100644
> --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
> +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
> @@ -332,6 +332,67 @@ static int inv_mpu6050_sensor_show(struct inv_mpu6050_state *st, int reg,
> return IIO_VAL_INT;
> }
>
> +static int inv_mpu6050_read_channel_data(struct iio_dev *indio_dev,
> + struct iio_chan_spec const *chan,
> + int *val)
> +{
> + struct inv_mpu6050_state *st = iio_priv(indio_dev);
> + int result;
> + int ret = IIO_VAL_INT;
> +
> + result = iio_device_claim_direct_mode(indio_dev);
> + if (result)
> + return result;
> + result = inv_mpu6050_set_power_itg(st, true);
> + if (result)
> + goto error_release;
> +
> + switch (chan->type) {
> + case IIO_ANGL_VEL:
> + result = inv_mpu6050_switch_engine(st, true,
> + INV_MPU6050_BIT_PWR_GYRO_STBY);
> + if (result)
> + goto error_power_off;
> + ret = inv_mpu6050_sensor_show(st, st->reg->raw_gyro,
> + chan->channel2, val);
> + result = inv_mpu6050_switch_engine(st, false,
> + INV_MPU6050_BIT_PWR_GYRO_STBY);
> + if (result)
> + goto error_power_off;
> + break;
> + case IIO_ACCEL:
> + result = inv_mpu6050_switch_engine(st, true,
> + INV_MPU6050_BIT_PWR_ACCL_STBY);
> + if (result)
> + goto error_power_off;
> + ret = inv_mpu6050_sensor_show(st, st->reg->raw_accl,
> + chan->channel2, val);
> + result = inv_mpu6050_switch_engine(st, false,
> + INV_MPU6050_BIT_PWR_ACCL_STBY);
> + if (result)
> + goto error_power_off;
> + break;
> + case IIO_TEMP:
> + /* wait for stablization */
> + msleep(INV_MPU6050_SENSOR_UP_TIME);
> + ret = inv_mpu6050_sensor_show(st, st->reg->temperature,
> + IIO_MOD_X, val);
> + break;
> + default:
> + ret = -EINVAL;
> + break;
> + }
> +
> +error_power_off:
> + result |= inv_mpu6050_set_power_itg(st, false);
> +error_release:
> + iio_device_release_direct_mode(indio_dev);
> + if (result)
> + return result;
> +
> + return ret;
> +}
> +
> static int
> inv_mpu6050_read_raw(struct iio_dev *indio_dev,
> struct iio_chan_spec const *chan,
> @@ -342,63 +403,10 @@ inv_mpu6050_read_raw(struct iio_dev *indio_dev,
>
> switch (mask) {
> case IIO_CHAN_INFO_RAW:
> - {
> - int result;
> -
> - ret = IIO_VAL_INT;
> mutex_lock(&st->lock);
> - result = iio_device_claim_direct_mode(indio_dev);
> - if (result)
> - goto error_read_raw_unlock;
> - result = inv_mpu6050_set_power_itg(st, true);
> - if (result)
> - goto error_read_raw_release;
> - switch (chan->type) {
> - case IIO_ANGL_VEL:
> - result = inv_mpu6050_switch_engine(st, true,
> - INV_MPU6050_BIT_PWR_GYRO_STBY);
> - if (result)
> - goto error_read_raw_power_off;
> - ret = inv_mpu6050_sensor_show(st, st->reg->raw_gyro,
> - chan->channel2, val);
> - result = inv_mpu6050_switch_engine(st, false,
> - INV_MPU6050_BIT_PWR_GYRO_STBY);
> - if (result)
> - goto error_read_raw_power_off;
> - break;
> - case IIO_ACCEL:
> - result = inv_mpu6050_switch_engine(st, true,
> - INV_MPU6050_BIT_PWR_ACCL_STBY);
> - if (result)
> - goto error_read_raw_power_off;
> - ret = inv_mpu6050_sensor_show(st, st->reg->raw_accl,
> - chan->channel2, val);
> - result = inv_mpu6050_switch_engine(st, false,
> - INV_MPU6050_BIT_PWR_ACCL_STBY);
> - if (result)
> - goto error_read_raw_power_off;
> - break;
> - case IIO_TEMP:
> - /* wait for stablization */
> - msleep(INV_MPU6050_SENSOR_UP_TIME);
> - ret = inv_mpu6050_sensor_show(st, st->reg->temperature,
> - IIO_MOD_X, val);
> - break;
> - default:
> - ret = -EINVAL;
> - break;
> - }
> -error_read_raw_power_off:
> - result |= inv_mpu6050_set_power_itg(st, false);
> -error_read_raw_release:
> - iio_device_release_direct_mode(indio_dev);
> -error_read_raw_unlock:
> + ret = inv_mpu6050_read_channel_data(indio_dev, chan, val);
> mutex_unlock(&st->lock);
> - if (result)
> - return result;
> -
> return ret;
> - }
> case IIO_CHAN_INFO_SCALE:
> switch (chan->type) {
> case IIO_ANGL_VEL:
next prev parent reply other threads:[~2018-04-28 15:54 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-23 10:33 [PATCH v4 1/4] iio: imu: inv_mpu6050: fix error path not turning chip back off Jean-Baptiste Maneyrol
2018-04-23 10:33 ` [PATCH v4 2/4] iio: imu: inv_mpu6050: use devm_* at init and delete remove Jean-Baptiste Maneyrol
2018-04-28 15:53 ` Jonathan Cameron
2018-04-23 10:33 ` [PATCH v4 3/4] iio: imu: inv_mpu6050: clean read raw by factorizing out raw data Jean-Baptiste Maneyrol
2018-04-28 15:54 ` Jonathan Cameron [this message]
2018-04-23 10:33 ` [PATCH v4 4/4] iio: imu: inv_mpu6050: clean read channel data error path Jean-Baptiste Maneyrol
2018-04-28 15:57 ` Jonathan Cameron
2018-04-28 15:48 ` [PATCH v4 1/4] iio: imu: inv_mpu6050: fix error path not turning chip back off Jonathan Cameron
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