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iio: imu: st_lsm6dsx: check if master_enable is located in primary page
Check if the master enable register is located in the primary or in the secondary memory page. This is a preliminary patch to support i2c master controller on lsm6dsm devices Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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3 changed files with 14 additions and 5 deletions
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@ -184,7 +184,11 @@ struct st_lsm6dsx_hw_ts_settings {
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*/
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struct st_lsm6dsx_shub_settings {
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struct st_lsm6dsx_reg page_mux;
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struct st_lsm6dsx_reg master_en;
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struct {
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bool sec_page;
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u8 addr;
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u8 mask;
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} master_en;
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struct st_lsm6dsx_reg pullup_en;
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struct st_lsm6dsx_reg aux_sens;
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struct st_lsm6dsx_reg wr_once;
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@ -868,6 +868,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
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.mask = BIT(6),
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},
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.master_en = {
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.sec_page = true,
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.addr = 0x14,
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.mask = BIT(2),
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},
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@ -1243,6 +1244,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
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.mask = BIT(6),
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},
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.master_en = {
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.sec_page = true,
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.addr = 0x14,
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.mask = BIT(2),
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},
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@ -185,15 +185,18 @@ static int st_lsm6dsx_shub_master_enable(struct st_lsm6dsx_sensor *sensor,
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mutex_lock(&hw->page_lock);
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hub_settings = &hw->settings->shub_settings;
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err = st_lsm6dsx_set_page(hw, true);
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if (err < 0)
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goto out;
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if (hub_settings->master_en.sec_page) {
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err = st_lsm6dsx_set_page(hw, true);
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if (err < 0)
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goto out;
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}
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data = ST_LSM6DSX_SHIFT_VAL(enable, hub_settings->master_en.mask);
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err = regmap_update_bits(hw->regmap, hub_settings->master_en.addr,
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hub_settings->master_en.mask, data);
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st_lsm6dsx_set_page(hw, false);
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if (hub_settings->master_en.sec_page)
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st_lsm6dsx_set_page(hw, false);
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out:
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mutex_unlock(&hw->page_lock);
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