[ALSA] PM support for cs5535audio

Appended is my patch adding PM support to the cs5535audio driver.
I also added the ac97 quirk but it's not yet confirmed which
boards need to be in the quirk list. The patch also includes some
Kconfig and misc cleanup.

Signed-off-by: Jaya Kumar <jayakumar.alsa@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 8 insertions, 0 deletions

diff --git a/sound/pci/cs5535audio/cs5535audio.h b/sound/pci/cs5535audio/cs5535audio.h
index 5e55a1a1ed65..4fd1f31a6cf9 100644
--- a/sound/pci/cs5535audio/cs5535audio.h
+++ b/sound/pci/cs5535audio/cs5535audio.h
@@ -74,6 +74,8 @@
 #define PRM_RDY_STS                     0x00800000
 #define ACC_CODEC_CNTL_WR_CMD           (~0x80000000)
 #define ACC_CODEC_CNTL_RD_CMD           0x80000000
+#define ACC_CODEC_CNTL_LNK_SHUTDOWN     0x00040000
+#define ACC_CODEC_CNTL_LNK_WRM_RST      0x00020000
 #define PRD_JMP                         0x2000
 #define PRD_EOP                         0x4000
 #define PRD_EOT                         0x8000
@@ -88,6 +90,7 @@ struct cs5535audio_dma_ops {
         void (*disable_dma)(struct cs5535audio *cs5535au);
         void (*pause_dma)(struct cs5535audio *cs5535au);
         void (*setup_prd)(struct cs5535audio *cs5535au, u32 prd_addr);
+        u32 (*read_prd)(struct cs5535audio *cs5535au);
         u32 (*read_dma_pntr)(struct cs5535audio *cs5535au);
 };
 
@@ -103,11 +106,14 @@ struct cs5535audio_dma {
         struct snd_pcm_substream *substream;
         unsigned int buf_addr, buf_bytes;
         unsigned int period_bytes, periods;
+        int suspended;
+        u32 saved_prd;
 };
 
 struct cs5535audio {
         struct snd_card *card;
         struct snd_ac97 *ac97;
+        struct snd_pcm *pcm;
         int irq;
         struct pci_dev *pci;
         unsigned long port;
@@ -117,6 +123,8 @@ struct cs5535audio {
         struct cs5535audio_dma dmas[NUM_CS5535AUDIO_DMAS];
 };
 
+int snd_cs5535audio_suspend(struct pci_dev *pci, pm_message_t state);
+int snd_cs5535audio_resume(struct pci_dev *pci);
 int __devinit snd_cs5535audio_pcm(struct cs5535audio *cs5535audio);
 
 #endif /* __SOUND_CS5535AUDIO_H */