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UPSTREAM: usb: gadget: f_uac1: Add suspend callback

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Add suspend callback to f_uac1 function, calling corresponding method
of u_audio in order to stop the respective PCM streams and to notify
subscribed clients about the stop.

Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Link: https://lore.kernel.org/r/20220121155308.48794-11-pavel.hofman@ivitera.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bug: 235196743
(cherry picked from commit d1d11dd130)
Change-Id: I9d24b3f58aea89b167bae6af39a460adf37c1a2a
Signed-off-by: Luiz Matheus <luizmmat@motorola.com>
This commit is contained in:
Pavel Hofman
2022-01-21 16:53:08 +01:00
committed by Treehugger Robot
parent ff5468c71e
commit 29172165ca
1 changed files with 9 additions and 0 deletions
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9
drivers/usb/gadget/function/f_uac1.c
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@@ -961,6 +961,14 @@ static void f_audio_disable(struct usb_function *f)
usb_ep_disable(uac1->int_ep);
}
static void
f_audio_suspend(struct usb_function *f)
{
struct f_uac1 *uac1 = func_to_uac1(f);
u_audio_suspend(&uac1->g_audio);
}
/*-------------------------------------------------------------------------*/
static struct uac_feature_unit_descriptor *build_fu_desc(int chmask)
{
@@ -1691,6 +1699,7 @@ static struct usb_function *f_audio_alloc(struct usb_function_instance *fi)
uac1->g_audio.func.get_alt = f_audio_get_alt;
uac1->g_audio.func.setup = f_audio_setup;
uac1->g_audio.func.disable = f_audio_disable;
uac1->g_audio.func.suspend = f_audio_suspend;
uac1->g_audio.func.free_func = f_audio_free;
return &uac1->g_audio.func;