Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 4.9 16/66] usb: chipidea: Fix otg event handler | Date | Sat, 9 Nov 2019 21:47:55 -0500 |
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From: Loic Poulain <loic.poulain@linaro.org>
[ Upstream commit 59739131e0ca06db7560f9073fff2fb83f6bc2a5 ]
At OTG work running time, it's possible that several events need to be addressed (e.g. ID and VBUS events). The current implementation handles only one event at a time which leads to ignoring the other one. Fix it.
Signed-off-by: Loic Poulain <loic.poulain@linaro.org> Signed-off-by: Peter Chen <peter.chen@nxp.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/usb/chipidea/otg.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/chipidea/otg.c b/drivers/usb/chipidea/otg.c index f36a1ac3bfbdf..b8650210be0f7 100644 --- a/drivers/usb/chipidea/otg.c +++ b/drivers/usb/chipidea/otg.c @@ -206,14 +206,17 @@ static void ci_otg_work(struct work_struct *work) } pm_runtime_get_sync(ci->dev); + if (ci->id_event) { ci->id_event = false; ci_handle_id_switch(ci); - } else if (ci->b_sess_valid_event) { + } + + if (ci->b_sess_valid_event) { ci->b_sess_valid_event = false; ci_handle_vbus_change(ci); - } else - dev_err(ci->dev, "unexpected event occurs at %s\n", __func__); + } + pm_runtime_put_sync(ci->dev); enable_irq(ci->irq); -- 2.20.1
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