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usb: chipidea: udc: add a helper ci_udc_enable_vbus_irq()

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The VBUS interrupt is configured in multiple places, add a helper function
ci_udc_enable_vbus_irq() to simplify the code.

Acked-by: Peter Chen <peter.chen@kernel.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://patch.msgid.link/20260427075653.3611180-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xu Yang 2026-04-27 15:56:52 +08:00 committed by Greg Kroah-Hartman
parent 16abda69f4
commit a3fe1408e8
1 changed files with 17 additions and 15 deletions
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32
drivers/usb/chipidea/udc.c
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@ -1835,6 +1835,20 @@ static const struct usb_ep_ops usb_ep_ops = {
* GADGET block
*****************************************************************************/
static void ci_udc_enable_vbus_irq(struct ci_hdrc *ci, bool enable)
{
u32 reg = OTGSC_BSVIS;
if (!ci->is_otg)
return;
if (enable)
reg |= OTGSC_BSVIE;
/* Clear pending BSVIS and enable/disable BSVIE */
hw_write_otgsc(ci, OTGSC_BSVIE | OTGSC_BSVIS, reg);
}
static int ci_udc_get_frame(struct usb_gadget *_gadget)
{
struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget);
@ -2352,23 +2366,13 @@ static int udc_id_switch_for_device(struct ci_hdrc *ci)
pinctrl_select_state(ci->platdata->pctl,
ci->platdata->pins_device);
if (ci->is_otg)
/* Clear and enable BSV irq */
hw_write_otgsc(ci, OTGSC_BSVIS | OTGSC_BSVIE,
OTGSC_BSVIS | OTGSC_BSVIE);
ci_udc_enable_vbus_irq(ci, true);
return 0;
}
static void udc_id_switch_for_host(struct ci_hdrc *ci)
{
/*
* host doesn't care B_SESSION_VALID event
* so clear and disable BSV irq
*/
if (ci->is_otg)
hw_write_otgsc(ci, OTGSC_BSVIE | OTGSC_BSVIS, OTGSC_BSVIS);
ci_udc_enable_vbus_irq(ci, false);
ci->vbus_active = 0;
if (ci->platdata->pins_device && ci->platdata->pins_default)
@ -2395,9 +2399,7 @@ static void udc_suspend(struct ci_hdrc *ci)
static void udc_resume(struct ci_hdrc *ci, bool power_lost)
{
if (power_lost) {
if (ci->is_otg)
hw_write_otgsc(ci, OTGSC_BSVIS | OTGSC_BSVIE,
OTGSC_BSVIS | OTGSC_BSVIE);
ci_udc_enable_vbus_irq(ci, true);
if (ci->vbus_active)
usb_gadget_vbus_disconnect(&ci->gadget);
} else if (ci->vbus_active && ci->driver &&