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Date: Wed, 13 Apr 2022 22:22:54 -0500 From: Samuel Holland <samuel@...lland.org> To: Kishon Vijay Abraham I <kishon@...com>, Vinod Koul <vkoul@...nel.org>, Heiko Stuebner <heiko@...ech.de> Cc: Peter Geis <pgwipeout@...il.com>, Samuel Holland <samuel@...lland.org>, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org, linux-rockchip@...ts.infradead.org Subject: [PATCH 3/6] 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@...lland.org> --- drivers/phy/rockchip/phy-rockchip-inno-usb2.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c index 29407b36f5fa..3422db56be76 100644 --- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c +++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c @@ -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; -- 2.35.1
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