[alsa-devel] ASoC: 88pm860x: Question about pm860x_set_dai_sysclk implementation

Hi Haojian, In sound/soc/codecs/88pm860x-codec.c (pm860x_set_dai_sysclk): When dir != PM860X_CLK_DIR_OUT, current code set pm860x->dir = PM860X_CLK_DIR_IN; and then return -EINVAL. This looks confusion. Since there is no comment for that, I'm wondering if the return -EINVAL is intentional or not.

Regards, Axel