sound: Mark sound_setup() as optional

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>
This commit is contained in:
Simon Glass 2019-02-16 20:24:53 -07:00 committed by Bin Meng
parent 67b0cda76a
commit e65f9ef9f2
2 changed files with 2 additions and 2 deletions

View file

@ -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);
}

View file

@ -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);