iio: magnetometer: mag3110: claim direct mode during raw writes
Driver was checking for direct mode but not locking it. Use claim/release helper functions to guarantee the device stays in direct mode during raw writes. Signed-off-by: Alison Schofield <amsfield22@gmail.com> Acked-by: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Signed-off-by: Jonathan Cameron <jic23@kernel.org>hifive-unleashed-5.1
parent
0bf1a2aac6
commit
80dea21f95
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@ -222,29 +222,39 @@ static int mag3110_write_raw(struct iio_dev *indio_dev,
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int val, int val2, long mask)
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int val, int val2, long mask)
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{
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{
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struct mag3110_data *data = iio_priv(indio_dev);
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struct mag3110_data *data = iio_priv(indio_dev);
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int rate;
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int rate, ret;
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if (iio_buffer_enabled(indio_dev))
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ret = iio_device_claim_direct_mode(indio_dev);
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return -EBUSY;
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if (ret)
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return ret;
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switch (mask) {
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switch (mask) {
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case IIO_CHAN_INFO_SAMP_FREQ:
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case IIO_CHAN_INFO_SAMP_FREQ:
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rate = mag3110_get_samp_freq_index(data, val, val2);
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rate = mag3110_get_samp_freq_index(data, val, val2);
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if (rate < 0)
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if (rate < 0) {
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return -EINVAL;
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ret = -EINVAL;
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break;
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}
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data->ctrl_reg1 &= ~MAG3110_CTRL_DR_MASK;
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data->ctrl_reg1 &= ~MAG3110_CTRL_DR_MASK;
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data->ctrl_reg1 |= rate << MAG3110_CTRL_DR_SHIFT;
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data->ctrl_reg1 |= rate << MAG3110_CTRL_DR_SHIFT;
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return i2c_smbus_write_byte_data(data->client,
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ret = i2c_smbus_write_byte_data(data->client,
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MAG3110_CTRL_REG1, data->ctrl_reg1);
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MAG3110_CTRL_REG1, data->ctrl_reg1);
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break;
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case IIO_CHAN_INFO_CALIBBIAS:
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case IIO_CHAN_INFO_CALIBBIAS:
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if (val < -10000 || val > 10000)
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if (val < -10000 || val > 10000) {
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return -EINVAL;
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ret = -EINVAL;
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return i2c_smbus_write_word_swapped(data->client,
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break;
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}
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ret = i2c_smbus_write_word_swapped(data->client,
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MAG3110_OFF_X + 2 * chan->scan_index, val << 1);
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MAG3110_OFF_X + 2 * chan->scan_index, val << 1);
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break;
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default:
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default:
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return -EINVAL;
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ret = -EINVAL;
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break;
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}
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}
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iio_device_release_direct_mode(indio_dev);
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return ret;
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}
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}
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static irqreturn_t mag3110_trigger_handler(int irq, void *p)
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static irqreturn_t mag3110_trigger_handler(int irq, void *p)
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