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Diffstat (limited to 'drivers/usb/chipidea/core.c')
| -rw-r--r-- | drivers/usb/chipidea/core.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 484b1cd23431..3fce9fd14427 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -185,6 +185,22 @@ u8 hw_port_test_get(struct ci_hdrc *ci) return hw_read(ci, OP_PORTSC, PORTSC_PTC) >> __ffs(PORTSC_PTC); } +/** + * ci_platform_set_pin_state: set target pinctrl state with optional delay + * + * @ci: the controller + * @pins: the target pin-state + * + * This function returns nothing + */ +void ci_platform_set_pin_state(struct ci_hdrc *ci, struct pinctrl_state *pins) +{ + pinctrl_select_state(ci->platdata->pctl, pins); + if (ci->platdata->pin_switch_delay_us) + usleep_range(ci->platdata->pin_switch_delay_us, + ci->platdata->pin_switch_delay_us + 50); +} + static void hw_wait_phy_stable(void) { /* @@ -816,6 +832,9 @@ static int ci_get_platdata(struct device *dev, if (!platdata->enter_lpm) platdata->enter_lpm = ci_hdrc_enter_lpm_common; + of_property_read_u32(dev->of_node, "pin-switch-delay-us", + &platdata->pin_switch_delay_us); + return 0; } |