ALSA: wss_lib: Fix resume on Yamaha OPL3-SAx

Yamaha OPL3-SAx chips don't resume properly when playback is running -
garbage is played after resume. Restoring the CS4231_PLAYBK_FORMAT register
last fixes the problem.

Signed-off-by: Ondrej Zary <[e-mail]>
Signed-off-by: Takashi Iwai <[e-mail]>

sound/isa/wss/wss_lib.c

···
 			break;
 		}
 	}
+	/* Yamaha needs this to resume properly */
+	if (chip->hardware == WSS_HW_OPL3SA2)
+		snd_wss_out(chip, CS4231_PLAYBK_FORMAT,
+			    chip->image[CS4231_PLAYBK_FORMAT]);
 	spin_unlock_irqrestore(&chip->reg_lock, flags);
 #if 1
 	snd_wss_mce_down(chip);