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[ Upstream commit8b97d73c4d] The ChipIdea IRQ is disabled before scheduling the otg work and re-enabled on otg work completion. However if the job is already scheduled we have to undo the effect of disable_irq int order to balance the IRQ disable-depth value. Fixes:be6b0c1bd0("usb: chipidea: using one inline function to cover queue work operations") 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
24 lines
695 B
C
24 lines
695 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2013-2014 Freescale Semiconductor, Inc.
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*
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* Author: Peter Chen
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*/
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#ifndef __DRIVERS_USB_CHIPIDEA_OTG_H
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#define __DRIVERS_USB_CHIPIDEA_OTG_H
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u32 hw_read_otgsc(struct ci_hdrc *ci, u32 mask);
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void hw_write_otgsc(struct ci_hdrc *ci, u32 mask, u32 data);
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int ci_hdrc_otg_init(struct ci_hdrc *ci);
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void ci_hdrc_otg_destroy(struct ci_hdrc *ci);
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enum ci_role ci_otg_role(struct ci_hdrc *ci);
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void ci_handle_vbus_change(struct ci_hdrc *ci);
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static inline void ci_otg_queue_work(struct ci_hdrc *ci)
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{
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disable_irq_nosync(ci->irq);
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if (queue_work(ci->wq, &ci->work) == false)
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enable_irq(ci->irq);
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}
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#endif /* __DRIVERS_USB_CHIPIDEA_OTG_H */
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