diff options
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/iqs62x.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/mfd/iqs62x.c b/drivers/mfd/iqs62x.c index 9b5c389ca2c3..d1fc38a78acb 100644 --- a/drivers/mfd/iqs62x.c +++ b/drivers/mfd/iqs62x.c @@ -81,6 +81,7 @@ #define IQS62X_FW_REC_TYPE_MASK 3 #define IQS62X_FW_REC_TYPE_DATA 4 +#define IQS62X_ATI_STARTUP_MS 350 #define IQS62X_FILT_SETTLE_MS 250 struct iqs62x_fw_rec { @@ -111,6 +112,14 @@ static int iqs62x_dev_init(struct iqs62x_core *iqs62x) int ret; list_for_each_entry(fw_blk, &iqs62x->fw_blk_head, list) { + /* + * In case ATI is in progress, wait for it to complete before + * lowering the core clock frequency. + */ + if (fw_blk->addr == IQS62X_SYS_SETTINGS && + *fw_blk->data & IQS62X_SYS_SETTINGS_CLK_DIV) + msleep(IQS62X_ATI_STARTUP_MS); + if (fw_blk->mask) ret = regmap_update_bits(iqs62x->regmap, fw_blk->addr, fw_blk->mask, *fw_blk->data); |