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Message-ID: <20240203023645.31105-16-quic_wcheng@quicinc.com>
Date: Fri, 2 Feb 2024 18:36:07 -0800
From: Wesley Cheng <quic_wcheng@...cinc.com>
To: <srinivas.kandagatla@...aro.org>, <mathias.nyman@...el.com>,
<perex@...ex.cz>, <conor+dt@...nel.org>, <corbet@....net>,
<lgirdwood@...il.com>, <andersson@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>, <gregkh@...uxfoundation.org>,
<Thinh.Nguyen@...opsys.com>, <broonie@...nel.org>,
<bgoswami@...cinc.com>, <tiwai@...e.com>, <robh+dt@...nel.org>,
<konrad.dybcio@...aro.org>
CC: <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-sound@...r.kernel.org>, <linux-usb@...r.kernel.org>,
<linux-arm-msm@...r.kernel.org>, <linux-doc@...r.kernel.org>,
<alsa-devel@...a-project.org>, Wesley Cheng <quic_wcheng@...cinc.com>
Subject: [PATCH v13 15/53] xhci: export XHCI IMOD setting helper for interrupters
Utilize the xhci_set_interrupter_moderation() API to set the IMOD value for
interrupters, so that secondary interrupts can also configure this
parameter when clients request for it.
Signed-off-by: Wesley Cheng <quic_wcheng@...cinc.com>
---
drivers/usb/host/xhci.c | 3 ++-
drivers/usb/host/xhci.h | 2 ++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 834d8d160da4..d2ce1e1421e6 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -349,7 +349,7 @@ int xhci_disable_interrupter(struct xhci_interrupter *ir)
EXPORT_SYMBOL_GPL(xhci_disable_interrupter);
/* interrupt moderation interval imod_interval in nanoseconds */
-static int xhci_set_interrupter_moderation(struct xhci_interrupter *ir,
+int xhci_set_interrupter_moderation(struct xhci_interrupter *ir,
u32 imod_interval)
{
u32 imod;
@@ -364,6 +364,7 @@ static int xhci_set_interrupter_moderation(struct xhci_interrupter *ir,
return 0;
}
+EXPORT_SYMBOL_GPL(xhci_set_interrupter_moderation);
static void compliance_mode_recovery(struct timer_list *t)
{
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index ad9d93c645ad..d88d2f67e3ed 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1874,6 +1874,8 @@ int xhci_alloc_tt_info(struct xhci_hcd *xhci,
struct usb_tt *tt, gfp_t mem_flags);
int xhci_enable_interrupter(struct xhci_interrupter *ir);
int xhci_disable_interrupter(struct xhci_interrupter *ir);
+int xhci_set_interrupter_moderation(struct xhci_interrupter *ir,
+ u32 imod_interval);
/* xHCI ring, segment, TRB, and TD functions */
dma_addr_t xhci_trb_virt_to_dma(struct xhci_segment *seg, union xhci_trb *trb);
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