ps3: Add ps3av_audio_mute_analog()

Add support for muting the analog output so that it does not
play noises while non-PCM data is played.
Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

arch/powerpc/include/asm/ps3av.h

@@ -735,6 +735,7 @@ extern int ps3av_get_mode(void);
 extern int ps3av_video_mode2res(u32, u32 *, u32 *);
 extern int ps3av_video_mute(int);
 extern int ps3av_audio_mute(int);
+extern int ps3av_audio_mute_analog(int);
 extern int ps3av_dev_open(void);
 extern int ps3av_dev_close(void);
 extern void ps3av_register_flip_ctl(void (*flip_ctl)(int on, void *data),

drivers/ps3/ps3av.c

@@ -915,6 +915,22 @@ int ps3av_video_mute(int mute)
 
 EXPORT_SYMBOL_GPL(ps3av_video_mute);
 
+/* mute analog output only */
+int ps3av_audio_mute_analog(int mute)
+{
+	int i, res;
+
+	for (i = 0; i < ps3av->av_hw_conf.num_of_avmulti; i++) {
+		res = ps3av_cmd_av_audio_mute(1,
+			&ps3av->av_port[i + ps3av->av_hw_conf.num_of_hdmi],
+			mute);
+		if (res < 0)
+			return -1;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ps3av_audio_mute_analog);
+
 int ps3av_audio_mute(int mute)
 {
 	return ps3av_set_audio_mute(mute ? PS3AV_CMD_MUTE_ON