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Diffstat (limited to 'drivers/misc/lis3lv02d/lis3lv02d.c')
-rw-r--r--drivers/misc/lis3lv02d/lis3lv02d.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/misc/lis3lv02d/lis3lv02d.c b/drivers/misc/lis3lv02d/lis3lv02d.c
index b928bc1..8b51cd6 100644
--- a/drivers/misc/lis3lv02d/lis3lv02d.c
+++ b/drivers/misc/lis3lv02d/lis3lv02d.c
@@ -375,12 +375,14 @@ void lis3lv02d_poweron(struct lis3lv02d *lis3)
* both have been read. So the value read will always be correct.
* Set BOOT bit to refresh factory tuning values.
*/
- lis3->read(lis3, CTRL_REG2, &reg);
- if (lis3->whoami == WAI_12B)
- reg |= CTRL2_BDU | CTRL2_BOOT;
- else
- reg |= CTRL2_BOOT_8B;
- lis3->write(lis3, CTRL_REG2, reg);
+ if (lis3->pdata) {
+ lis3->read(lis3, CTRL_REG2, &reg);
+ if (lis3->whoami == WAI_12B)
+ reg |= CTRL2_BDU | CTRL2_BOOT;
+ else
+ reg |= CTRL2_BOOT_8B;
+ lis3->write(lis3, CTRL_REG2, reg);
+ }
/* LIS3 power on delay is quite long */
msleep(lis3->pwron_delay / lis3lv02d_get_odr());

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