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mfd: fusb302: fix connect adapter failed when reboot with adapter

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The fusb PD should be reset to sync adapter PD signal after fusb
sent hard reset cmd.

Change-Id: Iad5f27cf4c017639c24000e73dc831a36dbb55ec
Signed-off-by: Zhou weixin <zwx@rock-chips.com>
This commit is contained in:
Zhou weixin
2017-01-04 10:28:59 +08:00
committed by Huang, Tao
parent ac19946f3c
commit da478f1140
1 changed files with 16 additions and 3 deletions
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19
drivers/mfd/fusb302.c
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@@ -715,6 +715,7 @@ static void tcpc_alert(struct fusb30x_chip *chip, int *evt)
{
int interrupt, interrupta, interruptb;
u32 val;
static int retry;
regmap_read(chip->regmap, FUSB_REG_INTERRUPT, &interrupt);
regmap_read(chip->regmap, FUSB_REG_INTERRUPTA, &interrupta);
@@ -774,9 +775,21 @@ static void tcpc_alert(struct fusb30x_chip *chip, int *evt)
}
if (interrupta & INTERRUPTA_HARDSENT) {
chip->tx_state = tx_success;
chip->timer_state = T_DISABLED;
*evt |= EVENT_TX;
/*
* The fusb PD should be reset once to sync adapter PD
* signal after fusb sent hard reset cmd.This is not PD
* device if reset failed.
*/
if (!retry) {
retry = 1;
fusb302_pd_reset(chip);
pd_execute_hard_reset(chip);
} else {
retry = 0;
chip->tx_state = tx_success;
chip->timer_state = T_DISABLED;
*evt |= EVENT_TX;
}
}
}