526a19b3e3
This patch converts the dummy driver code to use the new unified PCM copy callback. As dummy driver doesn't do anything in the callback, it's just a simple replacement. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20230815190136.8987-5-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>