drivers: lis2dh: read reference register prior to wakeup
Fixes #71371 Signed-off-by: Juliane Schulze <juliane.schulze@deveritec.com>
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@ -437,9 +437,17 @@ static int lis2dh_pm_action(const struct device *dev,
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{
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int status;
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struct lis2dh_data *lis2dh = dev->data;
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uint8_t regdata;
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switch (action) {
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case PM_DEVICE_ACTION_RESUME:
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/* read REFERENCE register (see datasheet rev 6 section 8.9 footnote 1) */
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status = lis2dh->hw_tf->read_reg(dev, LIS2DH_REG_REFERENCE, ®data);
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if (status < 0) {
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LOG_ERR("failed to read reg_reference");
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return status;
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}
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/* Resume previous mode. */
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status = lis2dh->hw_tf->write_reg(dev, LIS2DH_REG_CTRL1,
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lis2dh->reg_ctrl1_active_val);
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