diff options
| author | Daniel Mack <zonque@gmail.com> | 2014-08-27 19:09:05 +0200 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-09-02 16:17:06 +0200 |
| commit | 254b3bf68b65ac8f82da1c7e0c1a2bb17012aa7d (patch) | |
| tree | bdf33e966254ca8ec9870985ca4242f6ae672388 /drivers/usb/gadget | |
| parent | usb: gadget: f_uac2: add short-hand for 'dev' (diff) | |
| download | linux-254b3bf68b65ac8f82da1c7e0c1a2bb17012aa7d.tar.xz linux-254b3bf68b65ac8f82da1c7e0c1a2bb17012aa7d.zip | |
usb: gadget: f_uac2: introduce agdev_to_uac2_opts
Add a simple container_of() wrapper to get a struct f_uac2_opts from a
struct struct audio_dev. Use it in two places where it is currently
open-coded.
Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget')
| -rw-r--r-- | drivers/usb/gadget/function/f_uac2.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c index efe8add29670..9c8831d74f5b 100644 --- a/drivers/usb/gadget/function/f_uac2.c +++ b/drivers/usb/gadget/function/f_uac2.c @@ -140,6 +140,12 @@ struct snd_uac2_chip *pdev_to_uac2(struct platform_device *p) } static inline +struct f_uac2_opts *agdev_to_uac2_opts(struct audio_dev *agdev) +{ + return container_of(agdev->func.fi, struct f_uac2_opts, func_inst); +} + +static inline uint num_channels(uint chanmask) { uint num = 0; @@ -1168,7 +1174,7 @@ in_rq_cur(struct usb_function *fn, const struct usb_ctrlrequest *cr) int value = -EOPNOTSUPP; int p_srate, c_srate; - opts = container_of(agdev->func.fi, struct f_uac2_opts, func_inst); + opts = agdev_to_uac2_opts(agdev); p_srate = opts->p_srate; c_srate = opts->c_srate; @@ -1210,7 +1216,7 @@ in_rq_range(struct usb_function *fn, const struct usb_ctrlrequest *cr) int value = -EOPNOTSUPP; int p_srate, c_srate; - opts = container_of(agdev->func.fi, struct f_uac2_opts, func_inst); + opts = agdev_to_uac2_opts(agdev); p_srate = opts->p_srate; c_srate = opts->c_srate; |