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From: Wesley Cheng <quic_wcheng@quicinc.com>
To: <srinivas.kandagatla@linaro.org>, <mathias.nyman@intel.com>,
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Subject: [PATCH v18 02/41] usb: host: xhci: Export enable and disable
interrupter APIs
Date: Tue, 27 Feb 2024 17:35:40 -0800
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| Series |
Introduce QC USB SND audio offloading support
|
|
Commit Message
Wesley Cheng
Feb. 28, 2024, 1:35 a.m. UTC
Secondary interrupters can be OS owned, so expose the enable and disable
interrupter APIs, so that the interrupts can be configured as requested
depending on the client.
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
---
drivers/usb/host/xhci.c | 6 ++++--
drivers/usb/host/xhci.h | 2 ++
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 9803efe7cdf2..dfc59338afb6 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -320,7 +320,7 @@ static void xhci_zero_64b_regs(struct xhci_hcd *xhci) xhci_info(xhci, "Fault detected\n"); } -static int xhci_enable_interrupter(struct xhci_interrupter *ir) +int xhci_enable_interrupter(struct xhci_interrupter *ir) { u32 iman; @@ -332,8 +332,9 @@ static int xhci_enable_interrupter(struct xhci_interrupter *ir) return 0; } +EXPORT_SYMBOL_GPL(xhci_enable_interrupter); -static int xhci_disable_interrupter(struct xhci_interrupter *ir) +int xhci_disable_interrupter(struct xhci_interrupter *ir) { u32 iman; @@ -345,6 +346,7 @@ static int xhci_disable_interrupter(struct xhci_interrupter *ir) return 0; } +EXPORT_SYMBOL_GPL(xhci_disable_interrupter); /* interrupt moderation interval imod_interval in nanoseconds */ static int xhci_set_interrupter_moderation(struct xhci_interrupter *ir, diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 4f5e5187ea46..8908c3f5af6f 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1872,6 +1872,8 @@ int xhci_alloc_tt_info(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev, struct usb_device *hdev, struct usb_tt *tt, gfp_t mem_flags); +int xhci_enable_interrupter(struct xhci_interrupter *ir); +int xhci_disable_interrupter(struct xhci_interrupter *ir); /* xHCI ring, segment, TRB, and TD functions */ dma_addr_t xhci_trb_virt_to_dma(struct xhci_segment *seg, union xhci_trb *trb);