This method in the sound API is optional since some drivers can do this when probing or as part of SoC init. Mark it as such.
Signed-off-by: Simon Glass sjg@chromium.org Reviewed-by: Bin Meng bmeng.cn@gmail.com ---
Changes in v2: None
drivers/sound/sound-uclass.c | 2 +- include/sound.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/sound/sound-uclass.c b/drivers/sound/sound-uclass.c index 2b836268896..067660623b2 100644 --- a/drivers/sound/sound-uclass.c +++ b/drivers/sound/sound-uclass.c @@ -16,7 +16,7 @@ int sound_setup(struct udevice *dev) struct sound_ops *ops = sound_get_ops(dev);
if (!ops->setup) - return -ENOSYS; + return 0;
return ops->setup(dev); } diff --git a/include/sound.h b/include/sound.h index b7959cc2607..7d528c479ef 100644 --- a/include/sound.h +++ b/include/sound.h @@ -54,7 +54,7 @@ void sound_create_square_wave(uint sample_rate, unsigned short *data, int size, /* Operations for sound */ struct sound_ops { /** - * setup() - Set up to play a sound + * setup() - Set up to play a sound (optional) */ int (*setup)(struct udevice *dev);