Commit 3a431957 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Jonathan Cameron

iio: imu: st_lsm6dsx: check if pull_up is located in primary page

Check if the pull up 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: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 007f2ebb
......@@ -189,7 +189,11 @@ struct st_lsm6dsx_shub_settings {
u8 addr;
u8 mask;
} master_en;
struct st_lsm6dsx_reg pullup_en;
struct {
bool sec_page;
u8 addr;
u8 mask;
} pullup_en;
struct st_lsm6dsx_reg aux_sens;
struct st_lsm6dsx_reg wr_once;
u8 num_ext_dev;
......
......@@ -873,6 +873,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
.mask = BIT(2),
},
.pullup_en = {
.sec_page = true,
.addr = 0x14,
.mask = BIT(3),
},
......@@ -1249,6 +1250,7 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
.mask = BIT(2),
},
.pullup_en = {
.sec_page = true,
.addr = 0x14,
.mask = BIT(3),
},
......@@ -1864,16 +1866,19 @@ static int st_lsm6dsx_init_shub(struct st_lsm6dsx_hw *hw)
pdata = (struct st_sensors_platform_data *)dev->platform_data;
if ((dev_fwnode(dev) && device_property_read_bool(dev, "st,pullups")) ||
(pdata && pdata->pullups)) {
err = st_lsm6dsx_set_page(hw, true);
if (err < 0)
return err;
if (hub_settings->pullup_en.sec_page) {
err = st_lsm6dsx_set_page(hw, true);
if (err < 0)
return err;
}
data = ST_LSM6DSX_SHIFT_VAL(1, hub_settings->pullup_en.mask);
err = regmap_update_bits(hw->regmap,
hub_settings->pullup_en.addr,
hub_settings->pullup_en.mask, data);
st_lsm6dsx_set_page(hw, false);
if (hub_settings->pullup_en.sec_page)
st_lsm6dsx_set_page(hw, false);
if (err < 0)
return err;
......
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