[ALSA] pcsp: Fix build with CONFIG_PM=n

sound/drivers/pcsp/pcsp.c: In function 'pcsp_suspend':
sound/drivers/pcsp/pcsp.c:201: error: implicit declaration of function 'snd_pcm_suspend_all'

Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net>
CC: Stas Sergeev <stsp@aknet.ru>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/drivers/pcsp/pcsp.c b/sound/drivers/pcsp/pcsp.c
index 5920351..54a1f90 100644 (file)
--- a/sound/drivers/pcsp/pcsp.c
+++ b/sound/drivers/pcsp/pcsp.c
@@ -194,6 +194,7 @@ static void pcsp_stop_beep(struct snd_pcsp *chip)
        spin_unlock_irq(&chip->substream_lock);
 }
 
+#ifdef CONFIG_PM
 static int pcsp_suspend(struct platform_device *dev, pm_message_t state)
 {
        struct snd_pcsp *chip = platform_get_drvdata(dev);
@@ -201,6 +202,9 @@ static int pcsp_suspend(struct platform_device *dev, pm_message_t state)
        snd_pcm_suspend_all(chip->pcm);
        return 0;
 }
+#else
+#define pcsp_suspend NULL
+#endif /* CONFIG_PM */
 
 static void pcsp_shutdown(struct platform_device *dev)
 {