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path: root/drivers/usb/gadget/f_uac2.c
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Diffstat (limited to 'drivers/usb/gadget/f_uac2.c')
-rw-r--r--drivers/usb/gadget/f_uac2.c20
1 files changed, 6 insertions, 14 deletions
diff --git a/drivers/usb/gadget/f_uac2.c b/drivers/usb/gadget/f_uac2.c
index 03c1fb68664..2f23566e53d 100644
--- a/drivers/usb/gadget/f_uac2.c
+++ b/drivers/usb/gadget/f_uac2.c
@@ -90,6 +90,7 @@ struct uac2_req {
};
struct uac2_rtd_params {
+ struct snd_uac2_chip *uac2; /* parent chip */
bool ep_enabled; /* if the ep is enabled */
/* Size of the ring buffer */
size_t dma_bytes;
@@ -169,18 +170,6 @@ struct snd_uac2_chip *pdev_to_uac2(struct platform_device *p)
}
static inline
-struct snd_uac2_chip *prm_to_uac2(struct uac2_rtd_params *r)
-{
- struct snd_uac2_chip *uac2 = container_of(r,
- struct snd_uac2_chip, c_prm);
-
- if (&uac2->c_prm != r)
- uac2 = container_of(r, struct snd_uac2_chip, p_prm);
-
- return uac2;
-}
-
-static inline
uint num_channels(uint chanmask)
{
uint num = 0;
@@ -204,7 +193,7 @@ agdev_iso_complete(struct usb_ep *ep, struct usb_request *req)
struct uac2_req *ur = req->context;
struct snd_pcm_substream *substream;
struct uac2_rtd_params *prm = ur->pp;
- struct snd_uac2_chip *uac2 = prm_to_uac2(prm);
+ struct snd_uac2_chip *uac2 = prm->uac2;
/* i/f shutting down */
if (!prm->ep_enabled)
@@ -894,7 +883,7 @@ struct cntrl_range_lay3 {
static inline void
free_ep(struct uac2_rtd_params *prm, struct usb_ep *ep)
{
- struct snd_uac2_chip *uac2 = prm_to_uac2(prm);
+ struct snd_uac2_chip *uac2 = prm->uac2;
int i;
prm->ep_enabled = false;
@@ -970,6 +959,9 @@ afunc_bind(struct usb_configuration *cfg, struct usb_function *fn)
}
agdev->in_ep->driver_data = agdev;
+ uac2->p_prm.uac2 = uac2;
+ uac2->c_prm.uac2 = uac2;
+
hs_epout_desc.bEndpointAddress = fs_epout_desc.bEndpointAddress;
hs_epout_desc.wMaxPacketSize = fs_epout_desc.wMaxPacketSize;
hs_epin_desc.bEndpointAddress = fs_epin_desc.bEndpointAddress;