From: Ondrej Zary <linux@rainbow-software.org>
Date: Mon, 16 Jul 2012 06:30:18 +0000 (+0200)
Subject: ALSA: wss_lib: Fix resume on Yamaha OPL3-SAx
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=b4e2a16f992288f1c5cddda1948c53ba3dde9cb3;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

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 <linux@rainbow-software.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/sound/isa/wss/wss_lib.c b/sound/isa/wss/wss_lib.c
index 00ca9fc4de0..360b08b03e1 100644
--- a/sound/isa/wss/wss_lib.c
+++ b/sound/isa/wss/wss_lib.c
@@ -1656,6 +1656,10 @@ static void snd_wss_resume(struct snd_wss *chip)
 			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);