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phy: rockchip-inno-usb2: Do not lock in bvalid IRQ handler 

Clearing the IRQ is atomic, so there is no need to hold the mutex.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Tested-by: Michael Riesch <michael.riesch@wolfvision.net>
Link: https://lore.kernel.org/r/20220414032258.40984-4-samuel@sholland.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Samuel Holland 2022-04-13 22:22:54 -05:00 committed by Vinod Koul
parent 656f7fcb12
commit 5a709a46e4
1 changed files with 0 additions and 4 deletions
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4
drivers/phy/rockchip/phy-rockchip-inno-usb2.c
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@ -905,13 +905,9 @@ static irqreturn_t rockchip_usb2phy_bvalid_irq(int irq, void *data)
if (!property_enabled(rphy->grf, &rport->port_cfg->bvalid_det_st))
return IRQ_NONE;
mutex_lock(&rport->mutex);
/* clear bvalid detect irq pending status */
property_enable(rphy->grf, &rport->port_cfg->bvalid_det_clr, true);
mutex_unlock(&rport->mutex);
rockchip_usb2phy_otg_sm_work(&rport->otg_sm_work.work);
return IRQ_HANDLED;